:root {
    --primary: #3b82f6;
    --primary-dark: #2563eb;
    --secondary: #10b981;
    --accent: #8b5cf6;
    --background: #0f172a;
    --surface: #1e293b;
    --surface-light: #334155;
    --text: #f1f5f9;
    --text-light: #94a3b8;
    --border: rgba(148, 163, 184, 0.1);
    --glow: rgba(59, 130, 246, 0.5);
    --danger-color: #ef4444;
}

body {
    font-family: 'Space Grotesk', sans-serif;
    background-color: var(--background);
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Фоновые элементы */
.background-elements {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
}

.gradient-sphere {
    position: absolute;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, var(--primary) 0%, transparent 70%);
    filter: blur(100px);
    opacity: 0.1;
    top: -300px;
    left: -300px;
    animation: float 20s ease-in-out infinite;
}

.gradient-sphere.secondary {
    background: radial-gradient(circle, var(--secondary) 0%, transparent 70%);
    right: -300px;
    left: auto;
    bottom: -300px;
    top: auto;
    animation-delay: -10s;
}

.grid-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: linear-gradient(var(--border) 1px, transparent 1px),
                      linear-gradient(90deg, var(--border) 1px, transparent 1px);
    background-size: 30px 30px;
    opacity: 0.1;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0); }
    25% { transform: translate(100px, 100px); }
    50% { transform: translate(0, 200px); }
    75% { transform: translate(-100px, 100px); }
}

/* Навигация */
.navbar {
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(20px);
    padding: 1.25rem 0;
    border-bottom: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

.navbar.scrolled {
    background: rgba(15, 23, 42, 0.98);
    backdrop-filter: blur(25px);
    border-bottom-color: transparent;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
    padding: 1rem 0;
}

.navbar-brand {
    font-weight: 800;
    color: var(--text);
    padding: 0.75rem 1rem;
    border-radius: 16px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    margin-right: 0;
    text-decoration: none;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    background: rgba(59, 130, 246, 0.05);
    border: 1px solid rgba(59, 130, 246, 0.1);
}

.navbar-brand::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, 
        transparent, 
        rgba(59, 130, 246, 0.1), 
        transparent);
    transition: left 0.6s ease;
}

.navbar-brand:hover {
    transform: translateY(-2px) scale(1.02);
    filter: brightness(1.1);
    border-color: rgba(59, 130, 246, 0.3);
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.15);
}

.navbar-brand:hover::before {
    left: 100%;
}

.navbar-brand:active {
    transform: translateY(0) scale(0.98);
}

.brand-container {
    display: flex;
    align-items: center;
    gap: 1rem;
    position: relative;
    z-index: 1;
}

.navbar-brand i {
    font-size: 1.75rem;
    color: var(--primary);
    filter: drop-shadow(0 0 12px rgba(59, 130, 246, 0.4));
    animation: globe-spin 25s linear infinite, globe-pulse 3s ease-in-out infinite;
    transition: all 0.4s ease;
}

.navbar-brand:hover i {
    filter: drop-shadow(0 0 20px rgba(59, 130, 246, 0.6));
    transform: scale(1.1);
}

@keyframes globe-spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes globe-pulse {
    0%, 100% { 
        transform: scale(1) rotate(0deg);
        filter: drop-shadow(0 0 12px rgba(59, 130, 246, 0.4));
    }
    50% { 
        transform: scale(1.15) rotate(180deg);
        filter: drop-shadow(0 0 20px rgba(59, 130, 246, 0.6));
    }
}

.brand-text {
    font-size: 1.75rem;
    background: linear-gradient(135deg, var(--text), var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 800;
    letter-spacing: -0.5px;
    position: relative;
}

.brand-text::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}

.navbar-brand:hover .brand-text::after {
    transform: scaleX(1);
}

.navbar-nav {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin: 0;
    padding: 0;
}

.nav-item {
    padding: 0.25rem;
    width: auto;
    opacity: 1;
    transform: none;
    transition: all 0.3s ease;
}

.nav-button {
    position: relative;
    color: var(--text-light);
    font-weight: 600;
    padding: 0.875rem 1.5rem;
    border-radius: 16px;
    background: rgba(59, 130, 246, 0.08);
    border: 1px solid rgba(59, 130, 246, 0.15);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    min-height: 48px;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    font-size: 0.95rem;
    letter-spacing: 0.2px;
}

.nav-button::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, 
        rgba(59, 130, 246, 0.15), 
        rgba(139, 92, 246, 0.15));
    opacity: 0;
    border-radius: inherit;
    pointer-events: none;
    transition: all 0.4s ease;
}

.nav-button::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.2) 0%, transparent 70%);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: all 0.4s ease;
}

.nav-button:hover {
    color: var(--text);
    background: rgba(59, 130, 246, 0.12);
    border-color: rgba(59, 130, 246, 0.3);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.15);
}

.nav-button:hover::before {
    opacity: 1;
}

.nav-button:hover::after {
    width: 200px;
    height: 200px;
}

.nav-button:active {
    background: rgba(59, 130, 246, 0.2);
    transform: translateY(0);
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.2);
}

.nav-button:hover, .nav-button.active {
    color: var(--text) !important;
    border-color: rgba(59, 130, 246, 0.4);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.2);
    text-decoration: none !important;
}

.nav-button.active {
    background: rgba(59, 130, 246, 0.2);
    border-color: rgba(59, 130, 246, 0.5);
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.25);
    color: var(--text) !important;
}

.button-content {
    position: relative;
    z-index: 2;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    pointer-events: none;
    transition: all 0.3s ease;
}

.nav-icon {
    font-size: 1.1rem;
    color: rgba(59, 130, 246, 0.8);
    pointer-events: none;
    transition: all 0.3s ease;
    filter: drop-shadow(0 0 8px rgba(59, 130, 246, 0.3));
}

.nav-button:hover .nav-icon {
    color: var(--primary);
    filter: drop-shadow(0 0 12px rgba(59, 130, 246, 0.5));
    transform: scale(1.1);
}

.nav-button.active .nav-icon {
    color: var(--primary);
    filter: drop-shadow(0 0 12px rgba(59, 130, 246, 0.5));
}

.nav-button-primary {
    position: relative;
    color: var(--text);
    font-weight: 700;
    padding: 0.875rem 2.25rem;
    margin: 0 0.25rem;
    border-radius: 16px;
    background: linear-gradient(135deg, #3b82f6, #60a5fa, #8b5cf6);
    border: none;
    overflow: hidden;
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.3);
    display: inline-flex;
    align-items: center;
    cursor: pointer;
    justify-content: center;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    white-space: nowrap;
    font-size: 1rem;
    letter-spacing: 0.3px;
    min-height: 48px;
}

.nav-button-primary::before {
    content: '';
    position: absolute;
    inset: -2px;
    background: linear-gradient(135deg, #3b82f6, #60a5fa, #8b5cf6);
    border-radius: 18px;
    opacity: 0;
    transition: opacity 0.4s ease;
    z-index: -1;
    filter: blur(12px);
}

.nav-button-primary::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, 
        transparent 0%, 
        rgba(255, 255, 255, 0.2) 50%, 
        transparent 100%
    );
    transform: translateX(-100%);
    transition: transform 0.6s ease;
}

.nav-button-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 35px rgba(59, 130, 246, 0.4);
    color: var(--text) !important;
    text-decoration: none !important;
}

.nav-button-primary:hover::before {
    opacity: 0.7;
}

.nav-button-primary:hover::after {
    transform: translateX(100%);
}

.nav-button-primary:active {
    transform: translateY(-1px);
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.35);
}

.nav-button-primary .button-content {
    position: relative;
    z-index: 2;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    pointer-events: none;
}

.nav-button-primary .nav-icon {
    color: white;
    pointer-events: none;
    filter: drop-shadow(0 0 8px rgba(255, 255, 255, 0.3));
    transition: all 0.3s ease;
}

.nav-button-primary:hover .nav-icon {
    color: white;
    filter: drop-shadow(0 0 12px rgba(255, 255, 255, 0.5));
    transform: scale(1.1);
}

.button-glow {
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: inherit;
    border-radius: inherit;
    filter: blur(12px);
    opacity: 0;
    transition: all 0.4s ease;
    z-index: -1;
}

.nav-button-primary:hover .button-glow {
    opacity: 0.8;
}

/* Анимация прозрачности навбара при прокрутке */
.navbar {
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(20px);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.navbar.scrolled {
    background: rgba(15, 23, 42, 0.98);
    backdrop-filter: blur(25px);
    border-bottom-color: transparent;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
    padding: 1rem 0;
}

/* Анимация появления навигации */
.navbar-nav .nav-item {
    opacity: 0;
    transform: translateY(-20px);
    animation: navItemFadeIn 0.6s ease forwards;
}

.navbar-nav .nav-item:nth-child(1) { animation-delay: 0.1s; }
.navbar-nav .nav-item:nth-child(2) { animation-delay: 0.2s; }
.navbar-nav .nav-item:nth-child(3) { animation-delay: 0.3s; }
.navbar-nav .nav-item:nth-child(4) { animation-delay: 0.4s; }
.navbar-nav .nav-item:nth-child(5) { animation-delay: 0.5s; }

@keyframes navItemFadeIn {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Улучшенные стили для контейнера навигации */
.navbar .container {
    position: relative;
    z-index: 2;
}

/* Эффект свечения для активной кнопки */
.nav-button.active::before {
    opacity: 1;
    background: linear-gradient(135deg, 
        rgba(59, 130, 246, 0.25), 
        rgba(139, 92, 246, 0.25));
}

.nav-button.active::after {
    width: 200px;
    height: 200px;
}

/* Анимация для иконок в навигации */
.nav-button .nav-icon {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-button:hover .nav-icon {
    animation: iconBounce 0.6s ease;
}

@keyframes iconBounce {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.2); }
}

/* Улучшенные стили для мобильной навигации (сохраняем бургер) */
@media (max-width: 991.98px) {
    .navbar {
        padding: 1rem 0;
    }

    .navbar-nav {
        gap: 0.5rem;
    }

    .nav-button,
    .nav-button-primary {
        width: 100%;
        justify-content: center;
        padding: 1rem 1.5rem;
        min-height: 52px;
    }

    .nav-button-primary {
        margin: 0.5rem 0;
    }

    .brand-container {
        gap: 0.75rem;
    }

    .navbar-brand i {
        font-size: 1.5rem;
    }

    .brand-text {
        font-size: 1.5rem;
    }
}

/* Бургер меню (оставляем без изменений) */
.navbar-toggler {
    border: none;
    padding: 0.75rem;
    background: transparent;
    cursor: pointer;
    margin-right: -0.75rem;
}

.burger-icon {
    width: 24px;
    height: 20px;
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.burger-icon span {
    width: 100%;
    height: 2px;
    background-color: var(--text);
    border-radius: 2px;
    transition: transform 0.2s ease;
}

.navbar-toggler.active .burger-icon span:nth-child(1) {
    transform: translateY(9px) rotate(45deg);
}

.navbar-toggler.active .burger-icon span:nth-child(2) {
    opacity: 0;
}

.navbar-toggler.active .burger-icon span:nth-child(3) {
    transform: translateY(-9px) rotate(-45deg);
}

.navbar-collapse {
    background: transparent;
    backdrop-filter: none;
    border: none;
    box-shadow: none;
}

/* Дополнительные улучшения для header'а */
.navbar::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, 
        transparent,
        rgba(59, 130, 246, 0.3),
        rgba(139, 92, 246, 0.3),
        transparent
    );
    opacity: 0;
    transition: opacity 0.4s ease;
}

.navbar.scrolled::before {
    opacity: 0;
}

/* Улучшенные эффекты для кнопок навигации */
.nav-button::before {
    background: linear-gradient(135deg, 
        rgba(59, 130, 246, 0.15), 
        rgba(139, 92, 246, 0.15),
        rgba(16, 185, 129, 0.15));
}

.nav-button:hover::before {
    background: linear-gradient(135deg, 
        rgba(59, 130, 246, 0.2), 
        rgba(139, 92, 246, 0.2),
        rgba(16, 185, 129, 0.2));
}

/* Анимация для логотипа при загрузке */
.navbar-brand {
    animation: logoAppear 1s ease-out;
}

@keyframes logoAppear {
    from {
        opacity: 0;
        transform: translateY(-20px) scale(0.9);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* Улучшенные стили для активных состояний */
.nav-button.active::before {
    background: linear-gradient(135deg, 
        rgba(59, 130, 246, 0.3), 
        rgba(139, 92, 246, 0.3),
        rgba(16, 185, 129, 0.3));
}

.nav-button.active::after {
    background: radial-gradient(circle, rgba(59, 130, 246, 0.3) 0%, transparent 70%);
}

/* Эффект пульсации для активной кнопки */
.nav-button.active {
    animation: activePulse 2s ease-in-out infinite;
}

@keyframes activePulse {
    0%, 100% {
        box-shadow: 0 8px 25px rgba(59, 130, 246, 0.2);
    }
    50% {
        box-shadow: 0 8px 35px rgba(59, 130, 246, 0.3);
    }
}

/* Улучшенные стили для primary кнопки */
.nav-button-primary::before {
    background: linear-gradient(135deg, #3b82f6, #60a5fa, #8b5cf6, #3b82f6);
    background-size: 200% 200%;
    animation: gradientShift 3s ease infinite;
}

@keyframes gradientShift {
    0%, 100% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
}

.nav-button-primary:hover::before {
    animation: gradientShift 1.5s ease infinite;
}

/* Эффект свечения для всех кнопок при наведении */
.nav-button:hover,
.nav-button-primary:hover {
    filter: brightness(1.05);
}

/* Улучшенные стили для иконок */
.nav-icon {
    position: relative;
    z-index: 2;
}

.nav-button:hover .nav-icon {
    animation: iconFloat 0.6s ease;
}

@keyframes iconFloat {
    0%, 100% { transform: translateY(0) scale(1.1); }
    50% { transform: translateY(-3px) scale(1.2); }
}

/* Стили для состояния загрузки навигации */
.navbar.loading .navbar-nav {
    opacity: 0.7;
    pointer-events: none;
}

.navbar.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 20px;
    height: 20px;
    border: 2px solid transparent;
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    z-index: 1001;
}

/* Улучшенные стили для мобильного меню */
@media (max-width: 991.98px) {
    .navbar-collapse::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        height: 1px;
        background: linear-gradient(90deg, 
            transparent,
            rgba(59, 130, 246, 0.4),
            transparent
        );
    }
    
    .navbar-nav::before {
        content: '';
        position: absolute;
        inset: 0;
        background: radial-gradient(circle at 50% 0%, 
            rgba(59, 130, 246, 0.05) 0%, 
            transparent 70%);
        border-radius: inherit;
        pointer-events: none;
    }
}

/* Кнопки */
.btn {
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
}

.btn-glow {
    position: relative;
    background: linear-gradient(45deg, var(--primary), var(--accent));
    border: none;
    color: var(--text);
    overflow: hidden;
}

.btn-glow::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, var(--primary), var(--accent));
    opacity: 0.5;
    filter: blur(15px);
    transition: all 0.3s ease;
    z-index: -1;
}

.btn-glow:hover::before {
    opacity: 1;
    transform: scale(1.2);
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--primary);
    color: var(--text);
}

.btn-outline:hover {
    background: var(--primary);
    color: var(--text);
    transform: translateY(-2px);
}

/* Hero секция */
.hero-section {
    padding: 8rem 0 4rem;
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(59, 130, 246, 0.1);
    color: var(--primary);
    padding: 0.75rem 1.25rem;
    border-radius: 2rem;
    margin-bottom: 2rem;
    border: 1px solid rgba(59, 130, 246, 0.2);
}

.hero-badge i {
    color: var(--primary);
    font-size: 1.1rem;
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero-content h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    background: linear-gradient(to right, var(--text), var(--text-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-light);
    margin-bottom: 2.5rem;
    line-height: 1.6;
    max-width: 600px;
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.hero-buttons .btn-primary {
    position: relative;
    background: linear-gradient(45deg, #3b82f6, #60a5fa);
    border: none;
    overflow: hidden;
    transition: all 0.3s ease;
}

.hero-buttons .btn-primary::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(45deg, #3b82f6, #60a5fa);
    border-radius: inherit;
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: -2;
    filter: blur(10px);
}

.hero-buttons .btn-primary::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, 
        transparent 0%, 
        rgba(255, 255, 255, 0.2) 50%, 
        transparent 100%
    );
    transform: translateX(-100%);
    transition: transform 0.5s ease;
}

.hero-buttons .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.4);
}

.hero-buttons .btn-primary:hover::before {
    opacity: 0.6;
}

.hero-buttons .btn-primary:hover::after {
    transform: translateX(100%);
}

.hero-buttons .btn-primary:active {
    transform: translateY(1px);
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
}

.hero-buttons .btn-primary i {
    margin-right: 0.75rem;
    transition: transform 0.3s ease;
}

.hero-buttons .btn-primary:hover i {
    transform: translateX(3px) scale(1.1);
}

.hero-buttons .btn-primary span {
    position: relative;
    z-index: 1;
}

.hero-features {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--text-light);
    font-size: 1.1rem;
}

.feature-item i {
    color: var(--secondary);
    font-size: 1rem;
}

/* Hero анимация */
.hero-animation {
    position: relative;
    height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.circle-animation {
    position: absolute;
    width: 400px;
    height: 400px;
}

.circle {
    position: absolute;
    border: 2px solid var(--primary);
    border-radius: 50%;
    animation: ripple 4s infinite;
    opacity: 0.2;
}

.circle:nth-child(1) { width: 100%; height: 100%; animation-delay: 0s; }
.circle:nth-child(2) { width: 80%; height: 80%; animation-delay: -1s; }
.circle:nth-child(3) { width: 60%; height: 60%; animation-delay: -2s; }

@keyframes ripple {
    0% { transform: scale(0.8); opacity: 0.2; }
    50% { transform: scale(1.1); opacity: 0.1; }
    100% { transform: scale(1.4); opacity: 0; }
}

.shield-icon {
    font-size: 5rem;
    color: var(--primary);
    animation: float-shield 4s ease-in-out infinite;
    position: relative;
    z-index: 1;
}

.shield-icon::after {
    content: '';
    position: absolute;
    inset: -20px;
    background: radial-gradient(circle, var(--primary) 0%, transparent 70%);
    opacity: 0.1;
    filter: blur(20px);
    animation: pulse 4s ease-in-out infinite;
}

@keyframes float-shield {
    0%, 100% { transform: translateY(0) rotate(0); }
    25% { transform: translateY(-15px) rotate(5deg); }
    75% { transform: translateY(15px) rotate(-5deg); }
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 0.1; }
    50% { transform: scale(1.2); opacity: 0.2; }
}

/* Общие стили для секций */
.section-header {
    text-align: center;
    margin-bottom: 5rem;
    position: relative;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.section-header h2 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    background: linear-gradient(to right, var(--text), var(--text-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1.2;
}

.section-header p {
    color: var(--text-light);
    font-size: 1.25rem;
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}



/* Секция возможностей */
.features-section {
    padding: 12rem 0;
    position: relative;
    background: linear-gradient(to bottom, 
        var(--background),
        rgba(15, 23, 42, 0.98)
    );
    border-top: 1px solid rgba(59, 130, 246, 0.15);
    overflow: hidden;
}

.features-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 20%, rgba(59, 130, 246, 0.12) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(16, 185, 129, 0.12) 0%, transparent 50%),
        radial-gradient(circle at 50% 50%, rgba(139, 92, 246, 0.08) 0%, transparent 50%);
    pointer-events: none;
    animation: backgroundFloat 20s ease-in-out infinite;
}

@keyframes backgroundFloat {
    0%, 100% { 
        transform: translate(0, 0) scale(1);
        opacity: 0.8;
    }
    33% { 
        transform: translate(-20px, -20px) scale(1.1);
        opacity: 1;
    }
    66% { 
        transform: translate(20px, 20px) scale(0.9);
        opacity: 0.6;
    }
}

.features-section .container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    position: relative;
    z-index: 2;
}

.features-section .section-header {
    margin-bottom: 6rem;
}

.features-section .section-header h2 {
    font-size: 3.5rem;
    font-weight: 900;
    margin-bottom: 2rem;
    background: linear-gradient(135deg, var(--text), var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.1;
    letter-spacing: -1px;
    position: relative;
}

.features-section .section-header h2::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 120px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    border-radius: 2px;
    box-shadow: 0 4px 20px rgba(59, 130, 246, 0.4);
}

.features-section .section-header p {
    font-size: 1.4rem;
    color: var(--text-light);
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.6;
    font-weight: 400;
    opacity: 0.9;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 3rem;
    position: relative;
    margin: 0 auto;
    max-width: 1200px;
}

.features-grid::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 200%;
    height: 200%;
    background: 
        radial-gradient(circle at 30% 30%, rgba(59, 130, 246, 0.03) 0%, transparent 50%),
        radial-gradient(circle at 70% 70%, rgba(139, 92, 246, 0.03) 0%, transparent 50%);
    pointer-events: none;
    z-index: 1;
}

.feature-card {
    background: linear-gradient(135deg, rgba(30, 41, 59, 0.9), rgba(51, 65, 85, 0.7));
    backdrop-filter: blur(25px);
    border: 1px solid rgba(59, 130, 246, 0.2);
    border-radius: 28px;
    padding: 3rem 2.5rem;
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, 
        rgba(59, 130, 246, 0.08) 0%, 
        rgba(139, 92, 246, 0.08) 50%, 
        rgba(16, 185, 129, 0.08) 100%);
    opacity: 0;
    transition: opacity 0.5s ease;
    z-index: 1;
}

.feature-card::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: conic-gradient(
        from 0deg,
        transparent,
        rgba(59, 130, 246, 0.1),
        transparent,
        rgba(139, 92, 246, 0.1),
        transparent
    );
    opacity: 0;
    transition: opacity 0.5s ease;
    animation: rotate 20s linear infinite;
    z-index: 0;
}

/* Градиентная рамка */
.feature-card::before {
    content: '';
    position: absolute;
    inset: -2px;
    background: linear-gradient(135deg, 
        var(--primary), 
        var(--accent), 
        var(--secondary), 
        var(--primary));
    border-radius: 30px;
    opacity: 0;
    transition: opacity 0.5s ease;
    z-index: -1;
}

.feature-card:hover::before {
    opacity: 0.3;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.feature-card:hover {
    transform: translateY(-12px) scale(1.03);
    border-color: rgba(59, 130, 246, 0.4);
    box-shadow: 0 25px 80px rgba(59, 130, 246, 0.2);
}

.feature-card:hover::after {
    opacity: 1;
}

.feature-icon {
    width: 90px;
    height: 90px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-radius: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 2.5rem;
    position: relative;
    box-shadow: 0 12px 35px rgba(59, 130, 246, 0.4);
    transition: all 0.5s ease;
    z-index: 2;
    align-self: center;
    animation: iconPulse 3s ease-in-out infinite;
}

@keyframes iconPulse {
    0%, 100% { 
        box-shadow: 0 12px 35px rgba(59, 130, 246, 0.4);
        transform: scale(1);
    }
    50% { 
        box-shadow: 0 15px 45px rgba(59, 130, 246, 0.6);
        transform: scale(1.05);
    }
}

.feature-icon::before {
    content: '';
    position: absolute;
    inset: -3px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-radius: 27px;
    opacity: 0.4;
    filter: blur(12px);
    z-index: -1;
    transition: all 0.5s ease;
}

.feature-icon::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, 
        rgba(255, 255, 255, 0.2) 0%, 
        transparent 50%, 
        rgba(255, 255, 255, 0.1) 100%);
    border-radius: 24px;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.feature-card:hover .feature-icon {
    transform: scale(1.15) rotate(8deg);
    box-shadow: 0 18px 50px rgba(59, 130, 246, 0.5);
    animation: none;
}

.feature-card:hover .feature-icon::before {
    opacity: 0.6;
    filter: blur(16px);
}

.feature-card:hover .feature-icon::after {
    opacity: 1;
}

.feature-icon i {
    font-size: 2.5rem;
    color: white;
    filter: drop-shadow(0 3px 6px rgba(0, 0, 0, 0.3));
    transition: all 0.3s ease;
}

.feature-card:hover .feature-icon i {
    transform: scale(1.1);
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.4));
}

.feature-card h3 {
    font-size: 1.75rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    color: white;
    background: linear-gradient(135deg, var(--text), var(--primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
    z-index: 2;
    text-align: center;
    letter-spacing: -0.5px;
}

.feature-card p {
    color: rgba(255, 255, 255, 0.85);
    font-size: 1.1rem;
    line-height: 1.7;
    margin-bottom: 2.5rem;
    position: relative;
    z-index: 2;
    text-align: center;
    font-weight: 400;
}

.feature-list {
    list-style: none;
    padding: 0;
    margin: 0;
    position: relative;
    z-index: 2;
    flex-grow: 1;
}

.feature-list li {
    display: flex;
    align-items: center;
    gap: 1.2rem;
    color: rgba(255, 255, 255, 0.8);
    font-size: 1rem;
    margin-bottom: 1.2rem;
    padding: 1rem 1.2rem;
    background: rgba(59, 130, 246, 0.08);
    border-radius: 16px;
    border: 1px solid rgba(59, 130, 246, 0.15);
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

.feature-list li::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, 
        transparent, 
        rgba(59, 130, 246, 0.1), 
        transparent);
    transition: left 0.5s ease;
}

.feature-list li:hover {
    background: rgba(59, 130, 246, 0.15);
    border-color: rgba(59, 130, 246, 0.3);
    transform: translateX(8px) scale(1.02);
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.15);
}

.feature-list li:hover::before {
    left: 100%;
}

.feature-list li i {
    color: var(--secondary);
    font-size: 1.1rem;
    background: rgba(16, 185, 129, 0.15);
    padding: 0.6rem;
    border-radius: 50%;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: all 0.3s ease;
}

.feature-list li:hover i {
    background: rgba(16, 185, 129, 0.25);
    transform: scale(1.1);
    box-shadow: 0 4px 15px rgba(16, 185, 129, 0.3);
}

/* Секция тарифов */
.pricing-section {
    padding: 8rem 0;
    position: relative;
    background: linear-gradient(to bottom, 
        rgba(15, 23, 42, 0.95),
        rgba(30, 41, 59, 0.98)
    );
    border-top: 1px solid rgba(59, 130, 246, 0.15);
    overflow: hidden;
}

.pricing-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 25% 25%, rgba(59, 130, 246, 0.06) 0%, transparent 50%),
        radial-gradient(circle at 75% 75%, rgba(16, 185, 129, 0.06) 0%, transparent 50%),
        radial-gradient(circle at 50% 50%, rgba(139, 92, 246, 0.04) 0%, transparent 50%);
    pointer-events: none;
    animation: pricingBackgroundFloat 30s ease-in-out infinite;
}

@keyframes pricingBackgroundFloat {
    0%, 100% { 
        transform: translate(0, 0) scale(1);
        opacity: 0.5;
    }
    33% { 
        transform: translate(-20px, -20px) scale(1.1);
        opacity: 0.7;
    }
    66% { 
        transform: translate(20px, 20px) scale(0.9);
        opacity: 0.3;
    }
}

.pricing-card {
    background: linear-gradient(135deg, rgba(30, 41, 59, 0.9), rgba(51, 65, 85, 0.8));
    backdrop-filter: blur(20px);
    border-radius: 24px;
    padding: 2.5rem 2rem;
    height: 100%;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(59, 130, 246, 0.15);
    position: relative;
    overflow: hidden;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
    z-index: 2;
}

.pricing-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, 
        rgba(59, 130, 246, 0.05) 0%, 
        rgba(139, 92, 246, 0.05) 50%, 
        rgba(16, 185, 129, 0.05) 100%);
    opacity: 0;
    transition: opacity 0.4s ease;
    z-index: 1;
}

.pricing-card:hover {
    transform: translateY(-8px) scale(1.02);
    border-color: rgba(59, 130, 246, 0.3);
    box-shadow: 0 20px 60px rgba(59, 130, 246, 0.15);
}

.pricing-card:hover::before {
    opacity: 1;
}

.pricing-card.featured {
    background: linear-gradient(135deg, 
        rgba(59, 130, 246, 0.15) 0%, 
        rgba(139, 92, 246, 0.15) 50%, 
        rgba(16, 185, 129, 0.15) 100%);
    border-color: rgba(59, 130, 246, 0.5);
    transform: scale(1.05);
    overflow: visible;
    box-shadow: 0 20px 60px rgba(59, 130, 246, 0.25);
    z-index: 3;
}

.pricing-card.featured::before {
    display: none;
}

.pricing-card.featured:hover {
    transform: translateY(-12px) scale(1.05);
    box-shadow: 0 30px 80px rgba(59, 130, 246, 0.25);
}

/* Метка "Популярный тариф" */
.popular-badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(45deg, var(--primary), var(--accent));
    color: white;
    padding: 0.6rem 1.2rem;
    border-radius: 25px;
    font-size: 0.9rem;
    font-weight: 600;
    text-align: center;
    white-space: nowrap;
    box-shadow: 0 4px 20px rgba(59, 130, 246, 0.5);
    z-index: 10;
    border: 2px solid rgba(255, 255, 255, 0.3);
    transition: all 0.3s ease;
}

.popular-badge:hover {
    transform: translateX(-50%) scale(1.05);
    box-shadow: 0 6px 25px rgba(59, 130, 246, 0.5);
    border-color: rgba(255, 255, 255, 0.4);
}

.pricing-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 2rem;
    position: relative;
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.4);
    transition: all 0.4s ease;
    z-index: 2;
}

.pricing-icon::before {
    content: '';
    position: absolute;
    inset: -2px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-radius: 22px;
    opacity: 0.3;
    filter: blur(8px);
    z-index: -1;
    transition: all 0.4s ease;
}

.pricing-card:hover .pricing-icon {
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 12px 35px rgba(59, 130, 246, 0.4);
}

.pricing-card:hover .pricing-icon::before {
    opacity: 0.5;
    filter: blur(12px);
}

.pricing-icon i {
    font-size: 2rem;
    color: white;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.3));
}

.pricing-header {
    text-align: center;
    margin-bottom: 2.5rem;
    position: relative;
    z-index: 2;
}

.pricing-header h3 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--text), var(--primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.price {
    font-size: 3rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin: 1.5rem 0 1rem 0;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.price-container {
    text-align: center;
    margin-bottom: 1rem;
}

.period {
    font-size: 1.25rem;
    color: var(--text);
    font-weight: 700;
    opacity: 1;
    background: rgba(59, 130, 246, 0.08);
    padding: 0.5rem 1rem;
    border-radius: 12px;
    display: inline-block;
    border: 1px solid rgba(59, 130, 246, 0.15);
    margin-top: 0.5rem;
    transition: all 0.3s ease;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.period:hover {
    background: rgba(59, 130, 246, 0.08);
    border-color: rgba(59, 130, 246, 0.15);
    transform: none;
    color: var(--text);
    box-shadow: none;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.pricing-features {
    list-style: none;
    padding: 0;
    margin: 0 0 2.5rem;
    position: relative;
    z-index: 2;
}

.pricing-features li {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.2rem;
    color: var(--text-light);
    padding: 0.75rem 1rem;
    background: rgba(59, 130, 246, 0.05);
    border-radius: 12px;
    border: 1px solid rgba(59, 130, 246, 0.1);
    transition: all 0.3s ease;
}

.pricing-features li:hover {
    background: rgba(59, 130, 246, 0.1);
    border-color: rgba(59, 130, 246, 0.2);
    transform: translateX(5px);
}

.pricing-features i {
    color: var(--secondary);
    font-size: 1.1rem;
    background: rgba(16, 185, 129, 0.1);
    padding: 0.5rem;
    border-radius: 50%;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.pricing-card .btn {
    position: relative;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border: none;
    border-radius: 16px;
    padding: 1rem 2rem;
    font-weight: 600;
    font-size: 1.1rem;
    z-index: 2;
}

.pricing-card .btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 150%;
    height: 150%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.2) 0%, transparent 50%);
    transform: translate(-50%, -50%) scale(0);
    transition: transform 0.6s ease;
    z-index: -1;
}

.pricing-card .btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 30px rgba(59, 130, 246, 0.3);
}

.pricing-card .btn:hover::before {
    transform: translate(-50%, -50%) scale(1);
}

.pricing-card .btn:active {
    transform: translateY(-1px);
}

.pricing-card .btn i {
    margin-right: 0.75rem;
    transition: transform 0.3s ease;
    font-size: 1.1rem;
}

.pricing-card .btn:hover i {
    transform: translateX(5px) scale(1.1);
}

.pricing-card.featured .btn {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.3);
    animation: pulse-glow 2s infinite;
}

@keyframes pulse-glow {
    0%, 100% {
        box-shadow: 0 8px 25px rgba(59, 130, 246, 0.3);
    }
    50% {
        box-shadow: 0 8px 35px rgba(59, 130, 246, 0.5);
    }
}

/* О нас секция */
.about-section {
    padding: 12rem 0;
    position: relative;
    background: linear-gradient(to bottom, 
        var(--background),
        rgba(15, 23, 42, 0.98)
    );
    border-top: 1px solid rgba(59, 130, 246, 0.15);
    overflow: hidden;
}

.about-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 20%, rgba(59, 130, 246, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(16, 185, 129, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 50% 50%, rgba(139, 92, 246, 0.06) 0%, transparent 50%);
    pointer-events: none;
    animation: aboutBackgroundFloat 25s ease-in-out infinite;
}

@keyframes aboutBackgroundFloat {
    0%, 100% { 
        transform: translate(0, 0) scale(1);
        opacity: 0.6;
    }
    33% { 
        transform: translate(-15px, -15px) scale(1.05);
        opacity: 0.8;
    }
    66% { 
        transform: translate(15px, 15px) scale(0.95);
        opacity: 0.4;
    }
}

.about-section .container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    position: relative;
    z-index: 2;
}

.about-section .section-header {
    margin-bottom: 6rem;
    text-align: center;
}

.about-section .section-header h2 {
    font-size: 3.5rem;
    font-weight: 900;
    margin-bottom: 2rem;
    background: linear-gradient(135deg, var(--text), var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.1;
    letter-spacing: -1px;
    position: relative;
}

.about-section .section-header h2::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 120px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    border-radius: 2px;
    box-shadow: 0 4px 20px rgba(59, 130, 246, 0.4);
}

.about-section .section-header p {
    font-size: 1.4rem;
    color: var(--text-light);
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.6;
    font-weight: 400;
    opacity: 0.9;
}

.about-content {
    position: relative;
    z-index: 2;
}

.about-text {
    margin-bottom: 3rem;
}

.about-description {
    font-size: 1.2rem;
    color: var(--text);
    line-height: 1.7;
    margin-bottom: 1.5rem;
    font-weight: 500;
    position: relative;
    padding-left: 2rem;
}

.about-description::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.5rem;
    width: 4px;
    height: calc(100% - 1rem);
    background: linear-gradient(to bottom, var(--primary), var(--accent));
    border-radius: 2px;
}

.about-mission {
    font-size: 1.1rem;
    color: var(--text-light);
    line-height: 1.6;
    font-style: italic;
    opacity: 0.9;
}

.about-features {
    margin-bottom: 3rem;
}

.about-feature-item {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: rgba(59, 130, 246, 0.05);
    border: 1px solid rgba(59, 130, 246, 0.1);
    border-radius: 20px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.about-feature-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, 
        transparent, 
        rgba(59, 130, 246, 0.1), 
        transparent);
    transition: left 0.6s ease;
}

.about-feature-item:hover {
    background: rgba(59, 130, 246, 0.08);
    border-color: rgba(59, 130, 246, 0.2);
    transform: translateX(8px) translateY(-2px);
    box-shadow: 0 12px 35px rgba(59, 130, 246, 0.15);
}

.about-feature-item:hover::before {
    left: 100%;
}

.about-feature-icon {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.3);
    transition: all 0.4s ease;
}

.about-feature-icon::before {
    content: '';
    position: absolute;
    inset: -3px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-radius: 21px;
    opacity: 0.3;
    filter: blur(12px);
    z-index: -1;
    transition: all 0.4s ease;
}

.about-feature-item:hover .about-feature-icon {
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 12px 35px rgba(59, 130, 246, 0.4);
}

.about-feature-item:hover .about-feature-icon::before {
    opacity: 0.5;
    filter: blur(16px);
}

.about-feature-icon i {
    font-size: 1.5rem;
    color: white;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.3));
    transition: all 0.3s ease;
}

.about-feature-item:hover .about-feature-icon i {
    transform: scale(1.1);
}

.about-feature-content h4 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 0.75rem;
    background: linear-gradient(135deg, var(--text), var(--primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.about-feature-content p {
    color: var(--text-light);
    font-size: 1rem;
    line-height: 1.6;
    margin: 0;
    opacity: 0.9;
}



.about-animation {
    height: 600px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.about-visual {
    position: relative;
    width: 100%;
    height: 100%;
}

.floating-icons {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
}

.floating-icon {
    position: absolute;
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.1), rgba(139, 92, 246, 0.1));
    border: 2px solid rgba(59, 130, 246, 0.3);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(10px);
    transition: all 0.4s ease;
    animation: floatIcon 8s ease-in-out infinite;
}

.floating-icon:nth-child(1) { 
    top: 10%; 
    left: 10%; 
    animation-delay: 0s; 
}
.floating-icon:nth-child(2) { 
    top: 20%; 
    right: 15%; 
    animation-delay: -1s; 
}
.floating-icon:nth-child(3) { 
    top: 60%; 
    left: 5%; 
    animation-delay: -2s; 
}
.floating-icon:nth-child(4) { 
    top: 70%; 
    right: 10%; 
    animation-delay: -3s; 
}
.floating-icon:nth-child(5) { 
    top: 40%; 
    left: 20%; 
    animation-delay: -4s; 
}
.floating-icon:nth-child(6) { 
    top: 30%; 
    right: 25%; 
    animation-delay: -5s; 
}

.floating-icon i {
    font-size: 2rem;
    color: var(--primary);
    filter: drop-shadow(0 0 12px rgba(59, 130, 246, 0.4));
    transition: all 0.3s ease;
}

.floating-icon:hover {
    transform: scale(1.2) rotate(10deg);
    border-color: rgba(59, 130, 246, 0.6);
    box-shadow: 0 12px 35px rgba(59, 130, 246, 0.3);
}

.floating-icon:hover i {
    transform: scale(1.1);
    filter: drop-shadow(0 0 20px rgba(59, 130, 246, 0.6));
}

.icon-glow {
    position: absolute;
    inset: -10px;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.2) 0%, transparent 70%);
    border-radius: 30px;
    opacity: 0;
    transition: opacity 0.3s ease;
    filter: blur(15px);
}

.floating-icon:hover .icon-glow {
    opacity: 1;
}

@keyframes floatIcon {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    25% { transform: translate(-8px, 8px) rotate(2deg); }
    50% { transform: translate(8px, -8px) rotate(-2deg); }
    75% { transform: translate(8px, 8px) rotate(1deg); }
}

.about-center-element {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 2;
}

.center-circle {
    width: 120px;
    height: 120px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    box-shadow: 0 15px 45px rgba(59, 130, 246, 0.4);
    animation: centerPulse 4s ease-in-out infinite;
}

.center-circle::before {
    content: '';
    position: absolute;
    inset: -5px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-radius: 50%;
    opacity: 0.3;
    filter: blur(20px);
    z-index: -1;
}

.center-circle i {
    font-size: 3rem;
    color: white;
    filter: drop-shadow(0 3px 6px rgba(0, 0, 0, 0.3));
    animation: centerIconFloat 3s ease-in-out infinite;
}

@keyframes centerPulse {
    0%, 100% { 
        transform: scale(1);
        box-shadow: 0 15px 45px rgba(59, 130, 246, 0.4);
    }
    50% { 
        transform: scale(1.1);
        box-shadow: 0 20px 60px rgba(59, 130, 246, 0.6);
    }
}

@keyframes centerIconFloat {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-5px) rotate(5deg); }
}

.pulse-rings {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.pulse-ring {
    position: absolute;
    border: 2px solid rgba(59, 130, 246, 0.3);
    border-radius: 50%;
    animation: pulseRing 3s ease-out infinite;
}

.pulse-ring:nth-child(1) {
    width: 200px;
    height: 200px;
    animation-delay: 0s;
}

.pulse-ring:nth-child(2) {
    width: 300px;
    height: 300px;
    animation-delay: 1s;
}

.pulse-ring:nth-child(3) {
    width: 400px;
    height: 400px;
    animation-delay: 2s;
}

@keyframes pulseRing {
    0% {
        transform: translate(-50%, -50%) scale(0.8);
        opacity: 0.8;
    }
    100% {
        transform: translate(-50%, -50%) scale(1.2);
        opacity: 0;
    }
}

/* Секция поддержки */
.support-section {
    padding: 8rem 0;
    background: linear-gradient(to bottom, var(--surface), var(--background));
    position: relative;
    overflow: hidden;
}

.support-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 20%, rgba(59, 130, 246, 0.15) 0%, transparent 40%),
        radial-gradient(circle at 80% 80%, rgba(16, 185, 129, 0.15) 0%, transparent 40%);
    pointer-events: none;
}

.support-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 1rem;
}

.support-card {
    background: rgba(30, 41, 59, 0.4);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(59, 130, 246, 0.2);
    border-radius: 1.5rem;
    padding: 2.5rem;
    position: relative;
}

.support-info {
    display: flex;
    gap: 2rem;
    margin-bottom: 2.5rem;
}

.support-icon {
    flex-shrink: 0;
    width: 64px;
    height: 64px;
    background: linear-gradient(45deg, #3b82f6, #60a5fa);
    border-radius: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
}

.support-icon i {
    font-size: 1.75rem;
    color: white;
}

.support-text {
    flex-grow: 1;
}

.support-text h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: white;
}

.support-text p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 1rem;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.support-features {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.support-features li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.95rem;
}

.support-features li i {
    color: #10b981;
    font-size: 0.85rem;
}

.support-action {
    text-align: center;
    position: relative;
}

.support-action .btn {
    position: relative;
    overflow: hidden;
    background: linear-gradient(45deg, #3b82f6, #60a5fa);
    border: none;
    transition: all 0.3s ease;
}

.support-action .btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        120deg,
        transparent,
        rgba(255, 255, 255, 0.2),
        transparent
    );
    transition: all 0.5s ease;
}

.support-action .btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.4);
}

.support-action .btn:hover::before {
    left: 100%;
}

.support-action .btn:active {
    transform: translateY(1px);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.support-action .btn i {
    transition: transform 0.3s ease;
    margin-right: 0.75rem;
}

.support-action .btn:hover i {
    transform: scale(1.2) rotate(10deg);
}

.support-action .btn span {
    position: relative;
    z-index: 1;
}

.btn-lg {
    padding: 1.25rem 2.5rem;
    font-size: 1.1rem;
    border-radius: 1rem;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-5px); }
}

.support-action::after {
    content: '';
    position: absolute;
    bottom: -20px;
    left: 50%;
    transform: translateX(-50%);
    width: 200px;
    height: 20px;
    background: radial-gradient(ellipse at center, rgba(59, 130, 246, 0.2) 0%, transparent 70%);
    filter: blur(5px);
    animation: float 3s ease-in-out infinite;
    pointer-events: none;
}

@media (max-width: 767.98px) {
    .support-info {
        flex-direction: column;
        gap: 1.5rem;
        text-align: center;
    }

    .support-icon {
        margin: 0 auto;
    }

    .support-features {
        grid-template-columns: 1fr;
        gap: 0.75rem;
    }

    .support-features li {
        justify-content: center;
    }

    .support-card {
        padding: 2rem 1.5rem;
    }
}

@media (max-width: 575.98px) {
    .support-text h3 {
        font-size: 1.25rem;
    }

    .support-text p {
        font-size: 0.95rem;
    }

    .support-features li {
        font-size: 0.9rem;
    }

    .btn-lg {
        width: 100%;
        padding: 0.875rem 1.5rem;
        font-size: 1rem;
    }
}

/* Подвал */
.footer {
    background: var(--surface);
    padding: 4rem 0 2rem;
    position: relative;
    border-top: 1px solid var(--border);
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, 
        transparent,
        var(--primary),
        var(--accent),
        transparent
    );
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.footer-description {
    color: var(--text-light);
    margin-bottom: 2rem;
}

.footer h4 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-links li {
    margin-bottom: 0.75rem;
}

.footer-links a {
    color: var(--text-light);
    text-decoration: none;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.footer-links a:hover {
    color: var(--text);
    transform: translateX(5px);
}

.footer-contacts {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-contacts li {
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.footer-contacts i {
    color: var(--primary);
}

.footer-contacts a {
    color: var(--text-light);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-contacts a:hover {
    color: var(--text);
}

.footer-bottom {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border);
    text-align: center;
    color: var(--text-light);
}

/* Модальное окно авторизации */
.auth-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(13, 17, 23, 0.95);
    backdrop-filter: blur(20px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.auth-modal.active {
    display: flex;
}

.auth-modal-container {
    width: 100%;
    max-width: 450px;
    margin: 1rem;
}

.auth-modal-content {
    background: #0f172a;
    border-radius: 20px;
    padding: 2rem;
    position: relative;
    border: 1px solid rgba(59, 130, 246, 0.5);
    box-shadow: 0 0 0 1px rgba(59, 130, 246, 0.2),
                0 0 30px rgba(59, 130, 246, 0.15);
}

.auth-close-btn {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 32px;
    height: 32px;
    border: none;
    background: none;
    color: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    transition: color 0.2s ease;
}

.auth-close-btn:hover {
    color: rgba(255, 255, 255, 0.8);
}

.auth-header {
    text-align: center;
    margin-bottom: 1.5rem;
}

.auth-logo {
    margin: 0 auto 1.5rem;
    position: relative;
}

.auth-logo i {
    font-size: 3rem;
    color: var(--primary);
    filter: drop-shadow(0 0 12px rgba(59, 130, 246, 0.4));
    display: inline-block;
    animation: modal-globe-spin 20s linear infinite, modal-globe-float 3s ease-in-out infinite;
}

@keyframes modal-globe-spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes modal-globe-float {
    0%, 100% {
        transform: translateY(0) rotate(0deg);
        filter: drop-shadow(0 0 12px rgba(59, 130, 246, 0.4));
    }
    50% {
        transform: translateY(-10px) rotate(180deg);
        filter: drop-shadow(0 0 20px rgba(59, 130, 246, 0.6));
    }
}

.auth-header h2 {
    color: #fff;
    font-size: 1.5rem;
    font-weight: 600;
    margin: 0;
    line-height: 1.2;
}

/* Вкладки авторизации */
.auth-tabs {
    display: flex;
    background: rgba(59, 130, 246, 0.1);
    border-radius: 12px;
    padding: 4px;
    margin-bottom: 1.5rem;
}

.auth-tab {
    flex: 1;
    background: none;
    border: none;
    color: rgba(255, 255, 255, 0.6);
    padding: 12px 16px;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.9rem;
    font-weight: 500;
}

.auth-tab.active {
    background: var(--primary);
    color: white;
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.auth-tab:hover:not(.active) {
    color: rgba(255, 255, 255, 0.8);
}

.auth-tab i {
    margin-right: 8px;
    font-size: 1rem;
}

/* Контент вкладок */
.auth-tab-content {
    display: none;
}

.auth-tab-content.active {
    display: block;
}

.auth-subtitle {
    color: rgba(255, 255, 255, 0.5);
    text-align: center;
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
}

/* Формы авторизации */
.auth-form {
    margin-bottom: 1.5rem;
}

.form-group {
    margin-bottom: 1rem;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 14px 16px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    color: white;
    font-size: 0.95rem;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary);
    background: rgba(255, 255, 255, 0.08);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-group input::placeholder {
    color: rgba(255, 255, 255, 0.4);
}

.form-group select {
    cursor: pointer;
}

.form-group select option {
    background: #1e293b;
    color: white;
}

/* Кнопка отправки */
.auth-submit-btn {
    width: 100%;
    padding: 14px 20px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    border: none;
    border-radius: 10px;
    color: white;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.auth-submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.4);
}

.auth-submit-btn:active {
    transform: translateY(0);
}

.auth-submit-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

/* Индикатор загрузки */
.btn-loading {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

/* Переключение режимов */
.auth-switch {
    text-align: center;
    margin-bottom: 1.5rem;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 10px;
}

.auth-switch span {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
    margin-right: 8px;
}

.auth-switch-btn {
    background: none;
    border: none;
    color: var(--primary);
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
    text-decoration: underline;
    transition: color 0.2s ease;
}

.auth-switch-btn:hover {
    color: var(--primary-dark);
}

/* Особенности авторизации */
.auth-features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    margin-top: 1.5rem;
}

.auth-feature {
    text-align: center;
    padding: 1rem 0.5rem;
}

.auth-feature i {
    display: block;
    font-size: 1.5rem;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.auth-feature span {
    display: block;
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.3;
}

/* Telegram кнопка */
.auth-button {
    margin-bottom: 1.5rem;
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
}

.auth-button iframe {
    margin: 0 auto;
}

/* Модальное окно согласия на Cookies */
.cookie-modal {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: transparent;
    display: none;
    z-index: 1200;
}

.cookie-modal.show {
    display: block;
}

.cookie-modal-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

.cookie-modal-content {
    background: rgba(15, 23, 42, 0.95);
    border-radius: 20px 20px 0 0;
    padding: 2rem;
    position: relative;
    border: none;
    box-shadow: none;
}

.cookie-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.cookie-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(45deg, #f59e0b, #f97316);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: none;
}

.cookie-icon i {
    font-size: 1.5rem;
    color: white;
}

.cookie-header h3 {
    color: white;
    font-size: 1.5rem;
    font-weight: 600;
    margin: 0;
}

.cookie-body {
    margin-bottom: 2rem;
}

.cookie-body p {
    color: var(--text-light);
    font-size: 1rem;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.cookie-body a {
    color: var(--primary);
    text-decoration: none;
    border-bottom: 1px solid var(--primary);
    transition: all 0.3s ease;
}

.cookie-body a:hover {
    color: var(--accent);
    border-bottom-color: var(--accent);
}

.cookie-types {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.cookie-type {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem;
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.2);
    border-radius: 12px;
    transition: all 0.3s ease;
}

.cookie-type:hover {
    background: rgba(59, 130, 246, 0.15);
    border-color: rgba(59, 130, 246, 0.3);
    transform: none;
}

.cookie-type i {
    color: var(--primary);
    font-size: 1.1rem;
}

.cookie-type span {
    color: var(--text-light);
    font-size: 0.9rem;
    font-weight: 500;
}

.cookie-actions {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
    flex-wrap: wrap;
}

.cookie-accept-btn {
    background: linear-gradient(45deg, var(--primary), var(--accent));
    border: none;
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: 12px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
    box-shadow: none;
}

.cookie-accept-btn:hover {
    transform: none;
    box-shadow: none;
}

.cookie-accept-btn:active {
    transform: none;
}

.cookie-decline-btn {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-light);
    padding: 0.75rem 1.5rem;
    border-radius: 12px;
    font-weight: 500;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
}

.cookie-decline-btn:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--danger-color);
    color: var(--danger-color);
    transform: none;
}

/* Уведомления */
.notification {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 1rem 1.5rem;
    border-radius: 0.5rem;
    background: var(--surface);
    border: 1px solid var(--border);
    color: var(--text);
    z-index: 1100;
    transform: translateX(120%);
    transition: transform 0.3s ease;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.notification.show {
    transform: translateX(0);
}

.notification-content {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.notification.success i {
    color: var(--accent);
}

.notification.error i {
    color: var(--danger-color);
}

/* Индикатор загрузки для кнопки авторизации */
.auth-button.loading {
    position: relative;
    pointer-events: none;
}

.auth-button.loading::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    border-radius: inherit;
    display: flex;
    align-items: center;
    justify-content: center;
}

.auth-button.loading::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 24px;
    height: 24px;
    border: 2px solid transparent;
    border-top-color: var(--text);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    z-index: 1;
}

@keyframes spin {
    0% { transform: translate(-50%, -50%) rotate(0deg); }
    100% { transform: translate(-50%, -50%) rotate(360deg); }
}

@media (max-width: 991.98px) {
    .navbar {
        padding: 0.75rem 0;
    }

    .navbar-collapse {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        bottom: 0;
        padding: 1rem;
        transform: translateX(100%);
        transition: transform 0.3s ease;
    }

    .navbar-collapse.show {
        transform: translateX(0);
    }

    .navbar-nav {
        padding: 1rem;
        background: rgba(30, 41, 59, 0.98);
        backdrop-filter: blur(10px);
        border-radius: 16px;
        border: 1px solid var(--border);
        display: flex;
        flex-direction: column;
        gap: 0.5rem;
    }

    .nav-item {
        opacity: 0;
        transform: translateY(20px);
        transition: all 0.3s ease;
    }

    .navbar-collapse.show .nav-item {
        opacity: 1;
        transform: translateY(0);
    }

    .hero-section {
        padding: 6rem 0 3rem;
    }

    .hero-content h1 {
        font-size: 2.5rem;
    }

    .hero-animation {
        height: 300px;
    }

    .circle-animation {
        width: 200px;
        height: 200px;
    }

    .features-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }

    .section-header h2 {
        font-size: 2rem;
    }

    .section-header p {
        font-size: 1rem;
    }
}

@media (max-width: 767.98px) {
    .navbar-brand {
        font-size: 1.25rem;
    }

    .logo-animation {
        width: 36px;
        height: 36px;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .hero-buttons .btn {
        width: 100%;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .feature-card {
        padding: 1.5rem;
    }

    .feature-icon {
        width: 48px;
        height: 48px;
    }

    .feature-icon i {
        font-size: 1.25rem;
    }
}

@media (max-width: 575.98px) {
    .navbar {
        padding: 0.5rem 0;
    }

    .hero-features {
        flex-direction: column;
        gap: 1rem;
    }

    .section-header h2 {
        font-size: 1.75rem;
    }

    .feature-card {
        padding: 1.25rem;
    }

    .feature-card h3 {
        font-size: 1.1rem;
    }

    .feature-card p {
        font-size: 0.9rem;
    }

    .feature-list li {
        font-size: 0.85rem;
    }
}

@media (max-width: 480px) {
    .auth-modal-container {
        margin: 0.5rem;
    }
    
    .auth-modal-content {
        padding: 1.5rem;
    }
    
    .auth-tabs {
        margin-bottom: 1rem;
    }
    
    .auth-tab {
        padding: 10px 12px;
        font-size: 0.85rem;
    }
    
    .auth-features {
        grid-template-columns: 1fr;
        gap: 0.5rem;
    }
}

/* Состояние загруженности header'а */
.navbar.header-loaded {
    animation: headerSlideDown 0.8s ease-out;
}

@keyframes headerSlideDown {
    from {
        transform: translateY(-100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

/* Улучшенные стили для активных состояний кнопок */
.nav-button.active .button-content {
    transform: scale(1.02);
}

.nav-button.active .nav-icon {
    animation: activeIconPulse 2s ease-in-out infinite;
}

@keyframes activeIconPulse {
    0%, 100% { 
        transform: scale(1.1);
        filter: drop-shadow(0 0 12px rgba(59, 130, 246, 0.5));
    }
    50% { 
        transform: scale(1.2);
        filter: drop-shadow(0 0 16px rgba(59, 130, 246, 0.7));
    }
}

/* Эффект свечения для всех интерактивных элементов */
.nav-button:focus,
.nav-button-primary:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.3);
}

.navbar-brand:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.3);
}

/* Улучшенные стили для hover эффектов */
.nav-button:hover .button-content {
    transform: translateY(-1px);
}

.nav-button-primary:hover .button-content {
    transform: translateY(-1px);
}

/* Анимация для логотипа при взаимодействии */
.navbar-brand:hover .brand-container {
    transform: scale(1.02);
}

.navbar-brand:hover .brand-text::after {
    transform: scaleX(1);
    box-shadow: 0 0 10px rgba(59, 130, 246, 0.5);
}

/* Улучшенные стили для мобильного состояния */
@media (max-width: 991.98px) {
    .navbar.header-loaded {
        animation: headerSlideDownMobile 0.6s ease-out;
    }
    
    @keyframes headerSlideDownMobile {
        from {
            transform: translateY(-100%);
            opacity: 0;
        }
        to {
            transform: translateY(0);
            opacity: 1;
        }
    }
    
    .navbar-collapse.show .nav-item {
        animation: mobileMenuItemSlide 0.4s ease forwards;
    }
    
    @keyframes mobileMenuItemSlide {
        from {
            opacity: 0;
            transform: translateX(-20px);
        }
        to {
            opacity: 1;
            transform: translateX(0);
        }
    }
}

/* Дополнительные эффекты для улучшенного UX */
.nav-button::after {
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-button:hover::after {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Улучшенные стили для primary кнопки */
.nav-button-primary .button-glow {
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-button-primary:hover .button-glow {
    opacity: 0.8;
    filter: blur(16px);
}

/* Эффект параллакса для header'а */
.navbar {
    will-change: transform, backdrop-filter;
}

.navbar.scrolled {
    will-change: transform, backdrop-filter, box-shadow;
}

/* Улучшенные стили для доступности */
@media (prefers-reduced-motion: reduce) {
    .navbar,
    .nav-button,
    .nav-button-primary,
    .navbar-brand {
        animation: none !important;
        transition: none !important;
    }
    
    .navbar-nav .nav-item {
        animation: none !important;
    }
}