:root {
    --primary: #E18586;
    --primary-hover: #d47071;
    --primary-glow: rgba(225, 133, 134, 0.3);
}

[data-theme="dark"] {
    --bg: #0a0a0a;
    --bg-secondary: #111111;
    --bg-card: #161616;
    --bg-card-hover: #1a1a1a;
    --text: #ffffff;
    --text-secondary: #a0a0a0;
    --text-muted: #666666;
    --border: #222222;
    --border-hover: #333333;
    --header-bg: rgba(10, 10, 10, 0.8);
    --shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.4);
}

[data-theme="light"] {
    --bg: #ffffff;
    --bg-secondary: #f5f5f5;
    --bg-card: #ffffff;
    --bg-card-hover: #fafafa;
    --text: #0a0a0a;
    --text-secondary: #555555;
    --text-muted: #999999;
    --border: #e5e5e5;
    --border-hover: #d0d0d0;
    --header-bg: rgba(255, 255, 255, 0.8);
    --shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background 0.4s ease, color 0.4s ease;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Particles */
.particles {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--primary);
    border-radius: 50%;
    opacity: 0;
    animation: particleFloat linear infinite;
}

@keyframes particleFloat {
    0% {
        opacity: 0;
        transform: translateY(100vh) scale(0);
    }
    10% {
        opacity: 0.6;
    }
    90% {
        opacity: 0.6;
    }
    100% {
        opacity: 0;
        transform: translateY(-10vh) scale(1);
    }
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: var(--header-bg);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    transition: all 0.4s ease;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--text);
    font-weight: 700;
    font-size: 1.2rem;
}

.logo-img {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    object-fit: cover;
}

.logo-text {
    background: linear-gradient(135deg, var(--primary), #f0a0a1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav {
    display: flex;
    gap: 8px;
}

.nav-link {
    text-decoration: none;
    color: var(--text-secondary);
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.nav-link:hover,
.nav-link.active {
    color: var(--text);
    background: var(--bg-secondary);
}

.nav-link.active {
    color: var(--primary);
}

/* Header Actions */
.header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

/* Language Switcher */
.lang-switcher {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 4px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 12px;
}

.lang-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: none;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
}

.lang-btn:hover {
    background: var(--border);
}

.lang-btn.active {
    background: var(--primary);
}

.flag-img {
    width: 24px;
    height: 16px;
    border-radius: 3px;
    object-fit: cover;
}

.theme-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 12px;
    cursor: pointer;
    color: var(--text);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.theme-toggle:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.theme-icon {
    position: absolute;
    transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

[data-theme="dark"] .theme-icon.sun {
    opacity: 1;
    transform: rotate(0) scale(1);
}

[data-theme="dark"] .theme-icon.moon {
    opacity: 0;
    transform: rotate(180deg) scale(0);
}

[data-theme="light"] .theme-icon.sun {
    opacity: 0;
    transform: rotate(-180deg) scale(0);
}

[data-theme="light"] .theme-icon.moon {
    opacity: 1;
    transform: rotate(0) scale(1);
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text);
}

.menu-toggle span {
    width: 24px;
    height: 2px;
    background: currentColor;
    border-radius: 2px;
    transition: all 0.3s ease;
}

.menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Hero */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding: 100px 0 80px;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-badge {
    display: inline-block;
    padding: 6px 16px;
    background: var(--primary-glow);
    color: var(--primary);
    border-radius: 100px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 24px;
    animation: fadeInUp 0.6s ease;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 20px;
    animation: fadeInUp 0.6s ease 0.1s both;
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary), #f0a0a1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-desc {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 500px;
    margin-bottom: 36px;
    animation: fadeInUp 0.6s ease 0.2s both;
}

.hero-actions {
    display: flex;
    gap: 16px;
    animation: fadeInUp 0.6s ease 0.3s both;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: 12px;
    font-size: 0.95rem;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
}

.btn-primary {
    background: var(--primary);
    color: white;
    border: none;
    box-shadow: 0 4px 16px var(--primary-glow);
}

.btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px var(--primary-glow);
}

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

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

.hero-visual {
    position: relative;
    height: 400px;
    animation: fadeIn 1s ease 0.5s both;
}

.floating-card {
    position: absolute;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 24px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    box-shadow: var(--shadow);
    font-weight: 500;
    font-size: 0.9rem;
    animation: float 6s ease-in-out infinite;
    transition: all 0.3s ease;
}

.floating-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}

.card-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: var(--primary-glow);
    color: var(--primary);
    border-radius: 12px;
}

.card-1 {
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.card-2 {
    top: 45%;
    right: 5%;
    animation-delay: 2s;
}

.card-3 {
    bottom: 15%;
    left: 20%;
    animation-delay: 4s;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-20px);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

/* Sections */
.faq,
.contact {
    padding: 100px 0;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-tag {
    display: inline-block;
    padding: 6px 16px;
    background: var(--primary-glow);
    color: var(--primary);
    border-radius: 100px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 16px;
}

.section-title {
    font-size: clamp(1.8rem, 3vw, 2.5rem);
    font-weight: 700;
    margin-bottom: 16px;
}

.section-desc {
    color: var(--text-secondary);
    font-size: 1.05rem;
}

/* FAQ */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.faq-item {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    overflow: hidden;
    transition: all 0.3s ease;
    opacity: 0;
    transform: translateY(20px);
}

.faq-item.visible {
    opacity: 1;
    transform: translateY(0);
}

.faq-item:hover {
    border-color: var(--border-hover);
}

.faq-item.active {
    border-color: var(--primary);
    box-shadow: 0 0 0 1px var(--primary-glow);
}

.faq-question {
    width: 100%;
    padding: 20px 24px;
    background: none;
    border: none;
    color: var(--text);
    font-size: 1rem;
    font-weight: 500;
    text-align: left;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    font-family: inherit;
    transition: all 0.3s ease;
}

.faq-question:hover {
    color: var(--primary);
}

.faq-arrow {
    flex-shrink: 0;
    color: var(--text-muted);
    transition: all 0.3s ease;
}

.faq-item.active .faq-arrow {
    transform: rotate(180deg);
    color: var(--primary);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease;
}

.faq-answer p {
    padding: 0 24px 20px;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* Contact */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
    max-width: 800px;
    margin: 0 auto;
}

.contact-card {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 28px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 20px;
    text-decoration: none;
    color: var(--text);
    transition: all 0.4s ease;
    opacity: 0;
    transform: translateY(20px);
}

.contact-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.contact-card:hover {
    transform: translateY(-4px);
    border-color: var(--primary);
    box-shadow: 0 8px 32px var(--primary-glow);
}

.contact-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    border-radius: 16px;
    flex-shrink: 0;
    transition: all 0.3s ease;
}

.contact-icon.telegram {
    background: linear-gradient(135deg, #0088cc, #0077b5);
    color: white;
}

.contact-icon.email {
    background: var(--primary-glow);
    color: var(--primary);
}

.contact-icon.website {
    background: linear-gradient(135deg, #6366f1, #8b5cf6);
    color: white;
}

.contact-card:hover .contact-icon {
    transform: scale(1.1);
}

.contact-info {
    flex: 1;
}

.contact-info h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 4px;
}

.contact-info p {
    color: var(--primary);
    font-weight: 500;
    margin-bottom: 4px;
}

.contact-hint {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.contact-arrow {
    flex-shrink: 0;
    color: var(--text-muted);
    transition: all 0.3s ease;
}

.contact-card:hover .contact-arrow {
    color: var(--primary);
    transform: translate(4px, -4px);
}

/* Footer */
.footer {
    padding: 32px 0;
    border-top: 1px solid var(--border);
}

.footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.footer p {
    color: var(--text-muted);
    font-size: 0.85rem;
}

.footer-links {
    display: flex;
    gap: 16px;
}

.footer-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    color: var(--text-muted);
    border-radius: 10px;
    transition: all 0.3s ease;
}

.footer-links a:hover {
    color: var(--primary);
    background: var(--primary-glow);
}

/* Responsive */
@media (max-width: 768px) {
    .nav {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: var(--bg);
        border-bottom: 1px solid var(--border);
        flex-direction: column;
        padding: 16px;
    }

    .nav.active {
        display: flex;
    }

    .menu-toggle {
        display: flex;
    }

    .header-actions {
        display: none;
    }

    .nav.active .header-actions-mobile {
        display: flex;
    }

    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-desc {
        margin-left: auto;
        margin-right: auto;
    }

    .hero-actions {
        justify-content: center;
    }

    .hero-visual {
        display: none;
    }

    .footer-inner {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }

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

    /* Mobile actions in nav */
    .nav.active {
        display: flex;
        flex-direction: column;
        gap: 16px;
        padding: 20px;
    }

    .nav.active .header-actions {
        display: flex;
        justify-content: center;
        padding-top: 16px;
        border-top: 1px solid var(--border);
    }
}

@media (max-width: 480px) {
    .hero-actions {
        flex-direction: column;
    }

    .btn {
        justify-content: center;
    }
}