/* ===== Reset & Base ===== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg-primary: #0d1117;
    --bg-secondary: #161b22;
    --bg-card: #1c2333;
    --accent: #00d4aa;
    --accent-hover: #00f0c0;
    --accent-glow: rgba(0, 212, 170, 0.15);
    --text-primary: #ffffff;
    --text-secondary: #8b949e;
    --text-muted: #6e7681;
    --border: rgba(255, 255, 255, 0.08);
    --gradient-fox: linear-gradient(135deg, #ff6b35, #f7c948, #4da6ff);
    --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    color: var(--accent);
    text-decoration: none;
    transition: color 0.2s;
}

a:hover {
    color: var(--accent-hover);
}

img {
    max-width: 100%;
    height: auto;
}

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

/* ===== Header ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(13, 17, 23, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    transition: background 0.3s;
}

.header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.header__logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--text-primary);
}

.header__logo img {
    width: 40px;
    height: 40px;
    border-radius: 10px;
}

.header__nav {
    display: flex;
    align-items: center;
    gap: 32px;
}

.header__nav a {
    color: var(--text-secondary);
    font-size: 0.95rem;
    font-weight: 500;
    transition: color 0.2s;
}

.header__nav a:hover {
    color: var(--text-primary);
}

/* Burger */
.burger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 4px;
    background: none;
    border: none;
}

.burger span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: transform 0.3s, opacity 0.3s;
}

.burger.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}
.burger.active span:nth-child(2) {
    opacity: 0;
}
.burger.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* Mobile nav */
.mobile-nav {
    display: none;
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(13, 17, 23, 0.98);
    backdrop-filter: blur(20px);
    z-index: 999;
    padding: 40px 24px;
}

.mobile-nav.active {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.mobile-nav a {
    color: var(--text-primary);
    font-size: 1.5rem;
    font-weight: 600;
}

/* ===== Hero ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 72px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -200px;
    right: -200px;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(0, 212, 170, 0.08) 0%, transparent 70%);
    pointer-events: none;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -100px;
    left: -100px;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(255, 107, 53, 0.06) 0%, transparent 70%);
    pointer-events: none;
}

.hero__content {
    position: relative;
    z-index: 1;
    max-width: 720px;
}

.hero__badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    background: var(--accent-glow);
    border: 1px solid rgba(0, 212, 170, 0.2);
    border-radius: 100px;
    font-size: 0.85rem;
    color: var(--accent);
    margin-bottom: 24px;
}

.hero__badge::before {
    content: '';
    width: 6px;
    height: 6px;
    background: var(--accent);
    border-radius: 50%;
}

.hero h1 {
    font-size: clamp(2.2rem, 5vw, 3.5rem);
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 20px;
    letter-spacing: -0.02em;
}

.hero h1 .accent-text {
    background: var(--gradient-fox);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero__subtitle {
    font-size: 1.15rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 36px;
    max-width: 560px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    background: var(--accent);
    color: var(--bg-primary);
    font-weight: 600;
    font-size: 1rem;
    border: none;
    border-radius: 12px;
    cursor: pointer;
    transition: background 0.2s, transform 0.2s, box-shadow 0.2s;
}

.btn:hover {
    background: var(--accent-hover);
    color: var(--bg-primary);
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0, 212, 170, 0.25);
}

.btn--outline {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border);
}

.btn--outline:hover {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    box-shadow: none;
}

.hero__buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

/* ===== Section common ===== */
.section {
    padding: 100px 0;
}

.section__label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 16px;
}

.section__title {
    font-size: clamp(1.8rem, 3.5vw, 2.5rem);
    font-weight: 700;
    margin-bottom: 16px;
    letter-spacing: -0.01em;
}

.section__description {
    color: var(--text-secondary);
    font-size: 1.05rem;
    max-width: 600px;
    margin-bottom: 48px;
}

/* ===== Services ===== */
.services__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.service-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 36px 28px;
    transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
}

.service-card:hover {
    transform: translateY(-4px);
    border-color: rgba(0, 212, 170, 0.2);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.service-card__icon {
    width: 56px;
    height: 56px;
    background: var(--accent-glow);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    font-size: 1.6rem;
}

.service-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.service-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.65;
}

.service-card__features {
    list-style: none;
    margin-top: 20px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.service-card__features li {
    color: var(--text-secondary);
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.service-card__features li::before {
    content: '';
    width: 5px;
    height: 5px;
    background: var(--accent);
    border-radius: 50%;
    flex-shrink: 0;
}

/* ===== Pricing ===== */
.pricing {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.pricing__grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.pricing-card {
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 32px 24px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    position: relative;
    transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
}

.pricing-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.pricing-card--popular {
    border-color: var(--accent);
    box-shadow: 0 0 30px rgba(0, 212, 170, 0.1);
}

.pricing-card__badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--accent);
    color: var(--bg-primary);
    font-size: 0.8rem;
    font-weight: 700;
    padding: 4px 16px;
    border-radius: 100px;
    white-space: nowrap;
}

.pricing-card__period {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 16px;
    margin-top: 8px;
}

.pricing-card__price {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1;
    margin-bottom: 4px;
}

.pricing-card__price span {
    font-size: 1.5rem;
    font-weight: 600;
}

.pricing-card__per {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 24px;
}

.pricing-card__features {
    list-style: none;
    width: 100%;
    margin-bottom: 28px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.pricing-card__features li {
    color: var(--text-secondary);
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.pricing-card__features li::before {
    content: '✓';
    color: var(--accent);
    font-weight: 700;
    font-size: 0.85rem;
    flex-shrink: 0;
}

.pricing-card__btn {
    width: 100%;
    justify-content: center;
    margin-top: auto;
}

/* ===== About ===== */
.about {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.about__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

.about__text p {
    color: var(--text-secondary);
    font-size: 1.05rem;
    line-height: 1.75;
    margin-bottom: 16px;
}

.about__stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.stat {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 28px 24px;
    text-align: center;
}

.stat__number {
    font-size: 2rem;
    font-weight: 800;
    color: var(--accent);
    margin-bottom: 4px;
}

.stat__label {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* ===== Contacts ===== */
.contacts__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
}

.contacts__info {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.contact-item {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.contact-item__icon {
    width: 48px;
    height: 48px;
    background: var(--accent-glow);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    flex-shrink: 0;
}

.contact-item__text h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 4px;
}

.contact-item__text p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.contacts__form {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 36px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 10px;
    color: var(--text-primary);
    font-family: var(--font);
    font-size: 0.95rem;
    transition: border-color 0.2s;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
}

.form-group textarea {
    min-height: 120px;
    resize: vertical;
}

.form-btn {
    width: 100%;
}

/* ===== Footer ===== */
.footer {
    padding: 40px 0;
    border-top: 1px solid var(--border);
}

.footer__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
}

.footer__copy {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.footer__links {
    display: flex;
    gap: 24px;
}

.footer__links a {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.footer__links a:hover {
    color: var(--text-secondary);
}

/* ===== Animations ===== */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===== Responsive ===== */
@media (max-width: 968px) {
    .services__grid {
        grid-template-columns: 1fr;
        max-width: 500px;
    }

    .pricing__grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .about__grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

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

@media (max-width: 768px) {
    .header__nav {
        display: none;
    }

    .burger {
        display: flex;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .hero__subtitle {
        font-size: 1rem;
    }

    .section {
        padding: 64px 0;
    }

    .about__stats {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer__inner {
        flex-direction: column;
        text-align: center;
    }
}

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

    .btn {
        justify-content: center;
    }

    .pricing__grid {
        grid-template-columns: 1fr;
        max-width: 360px;
    }

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