/* ============================================
   Базовые настройки и CSS-переменные
   ============================================ */
:root {
    --bg-primary: #050505;
    --bg-secondary: #0a0a0a;
    --bg-card: #111111;
    --accent: #00ff88;
    --accent-dim: rgba(0, 255, 136, 0.15);
    --accent-secondary: #00ccff;
    --text-primary: #e0e0e0;
    --text-secondary: #666666;
    --border: #222222;
    --error: #ff4444;
    --font-mono: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', 'Consolas', 'Courier New', monospace;
    --transition: 0.2s ease;
    --container-max: 1000px;
}

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

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

body {
    font-family: var(--font-mono);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.7;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

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

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

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

.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 20px;
}

/* ============================================
   Мигающий курсор
   ============================================ */
.cursor {
    display: inline-block;
    color: var(--accent);
    animation: blink 1s step-end infinite;
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

/* ============================================
   Навигация
   ============================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(5, 5, 5, 0.95);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--border);
    z-index: 1000;
    padding: 12px 0;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 18px;
    font-weight: 700;
    color: var(--accent);
    letter-spacing: 1px;
}

.logo .cursor {
    font-weight: 400;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 32px;
}

.nav-link {
    font-size: 14px;
    color: var(--text-secondary);
    transition: color var(--transition);
    position: relative;
}

.nav-link:hover {
    color: var(--accent);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--accent);
    transition: width var(--transition);
}

.nav-link:hover::after {
    width: 100%;
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.hamburger {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--accent);
    position: relative;
    transition: background var(--transition);
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    left: 0;
    width: 24px;
    height: 2px;
    background: var(--accent);
    transition: transform var(--transition), top var(--transition);
}

.hamburger::before {
    top: -7px;
}

.hamburger::after {
    top: 7px;
}

/* ============================================
   Hero
   ============================================ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 120px 20px 80px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 50% 50%, rgba(0, 255, 136, 0.03) 0%, transparent 70%),
        linear-gradient(rgba(0, 255, 136, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 255, 136, 0.02) 1px, transparent 1px);
    background-size: 100% 100%, 40px 40px, 40px 40px;
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
}

.hero-photo-wrapper {
    margin-bottom: 32px;
}

.hero-photo {
    width: 160px;
    height: 160px;
    object-fit: cover;
    border-radius: 50%;
    border: 2px solid var(--accent);
    box-shadow: 0 0 20px rgba(0, 255, 136, 0.3), 0 0 60px rgba(0, 255, 136, 0.1);
    margin: 0 auto;
    transition: box-shadow var(--transition);
}

.hero-photo:hover {
    box-shadow: 0 0 30px rgba(0, 255, 136, 0.5), 0 0 80px rgba(0, 255, 136, 0.2);
}

.hero-title {
    font-size: 42px;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 24px;
    color: var(--text-primary);
}

.hero-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ============================================
   Кнопки
   ============================================ */
.btn {
    display: inline-block;
    padding: 14px 32px;
    font-family: var(--font-mono);
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    border: 1px solid var(--accent);
    border-radius: 4px;
    cursor: pointer;
    transition: all var(--transition);
    text-align: center;
}

.btn-primary {
    background: var(--accent);
    color: var(--bg-primary);
}

.btn-primary:hover {
    background: transparent;
    color: var(--accent);
    box-shadow: 0 0 20px var(--accent-dim);
}

.btn-secondary {
    background: transparent;
    color: var(--accent);
}

.btn-secondary:hover {
    background: var(--accent);
    color: var(--bg-primary);
    box-shadow: 0 0 20px var(--accent-dim);
}

.btn-full {
    width: 100%;
}

/* ============================================
   Секции
   ============================================ */
.section {
    padding: 80px 0;
}

.section-alt {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.section-title {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 48px;
    text-align: center;
}

.section-subtitle {
    font-size: 16px;
    color: var(--text-secondary);
    text-align: center;
    margin-top: -32px;
    margin-bottom: 48px;
}

.subsection {
    margin-bottom: 64px;
}

.subsection-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 32px;
    color: var(--accent-secondary);
}

/* ============================================
   Карточки
   ============================================ */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 16px;
}

.cases-grid {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 24px;
    transition: border-color var(--transition), box-shadow var(--transition);
}

.card:hover {
    border-color: var(--accent);
    box-shadow: 0 0 15px rgba(0, 255, 136, 0.1);
}

.card-icon {
    font-size: 32px;
    margin-bottom: 16px;
    line-height: 1;
}

.card-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.card-text {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Кейсы */
.card-case {
    border-left: 3px solid var(--accent);
}

.case-meta {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--accent);
    margin-bottom: 12px;
}

.case-title {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.case-result {
    font-size: 14px;
    color: var(--text-secondary);
}

/* ============================================
   Процесс — шаги
   ============================================ */
.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 24px;
}

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

.step-number {
    font-size: 14px;
    font-weight: 700;
    color: var(--accent);
    border: 1px solid var(--accent);
    border-radius: 4px;
    padding: 4px 8px;
    line-height: 1;
    flex-shrink: 0;
}

.step-title {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 4px;
    color: var(--text-primary);
}

.step-text {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* ============================================
   Гарантии
   ============================================ */
.guarantees {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 16px;
}

.guarantee-box {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 20px 24px;
    position: relative;
    overflow: hidden;
}

.guarantee-box::before {
    content: '✓';
    position: absolute;
    top: 8px;
    right: 12px;
    font-size: 20px;
    color: var(--accent);
    opacity: 0.3;
}

.guarantee-text {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ============================================
   Цены
   ============================================ */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 16px;
    align-items: start;
}

.pricing-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 32px;
    transition: border-color var(--transition), box-shadow var(--transition);
    position: relative;
}

.pricing-card:hover {
    border-color: var(--accent);
    box-shadow: 0 0 15px rgba(0, 255, 136, 0.1);
}

.pricing-featured {
    border-color: var(--accent);
    box-shadow: 0 0 20px rgba(0, 255, 136, 0.15);
}

.pricing-badge {
    position: absolute;
    top: -1px;
    right: 20px;
    background: var(--accent);
    color: var(--bg-primary);
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: 6px 12px;
    border-radius: 0 0 4px 4px;
}

.pricing-header {
    margin-bottom: 20px;
}

.pricing-name {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.pricing-desc {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.5;
}

.pricing-price {
    font-size: 32px;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 24px;
}

.pricing-features {
    list-style: none;
    margin-bottom: 32px;
}

.pricing-features li {
    font-size: 14px;
    color: var(--text-secondary);
    padding: 8px 0;
    border-bottom: 1px solid var(--border);
    position: relative;
    padding-left: 20px;
}

.pricing-features li::before {
    content: '>';
    position: absolute;
    left: 0;
    color: var(--accent);
    font-size: 12px;
}

/* ============================================
   Доверие — цифры
   ============================================ */
.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 24px;
    margin-bottom: 64px;
}

.stat-item {
    text-align: center;
    padding: 24px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 4px;
    transition: border-color var(--transition), box-shadow var(--transition);
}

.stat-item:hover {
    border-color: var(--accent);
    box-shadow: 0 0 15px rgba(0, 255, 136, 0.1);
}

.stat-number {
    font-size: 28px;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 8px;
}

.stat-label {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.4;
}

/* ============================================
   CTA и форма
   ============================================ */
.cta-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 48px;
    align-items: start;
}

.contact-form {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 32px;
}

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

.form-label {
    display: block;
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.form-input {
    width: 100%;
    padding: 12px 16px;
    font-family: var(--font-mono);
    font-size: 15px;
    color: var(--text-primary);
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 4px;
    outline: none;
    transition: border-color var(--transition), box-shadow var(--transition);
}

.form-input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 10px rgba(0, 255, 136, 0.15);
}

.form-input::placeholder {
    color: var(--text-secondary);
    opacity: 0.5;
}

.form-textarea {
    resize: vertical;
    min-height: 100px;
}

.form-error {
    display: none;
    font-size: 13px;
    color: var(--error);
    margin-top: 6px;
}

.form-group.has-error .form-input {
    border-color: var(--error);
}

.form-group.has-error .form-error {
    display: block;
}

.form-success {
    display: none;
    margin-top: 20px;
    padding: 16px;
    background: rgba(0, 255, 136, 0.05);
    border: 1px solid var(--accent);
    border-radius: 4px;
    text-align: center;
    color: var(--accent);
}

.form-success.visible {
    display: block;
}

.cta-alt {
    padding-top: 16px;
}

.cta-alt-text {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

/* ============================================
   Футер
   ============================================ */
.footer {
    border-top: 1px solid var(--border);
    padding: 48px 0 24px;
    background: var(--bg-secondary);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    flex-wrap: wrap;
    gap: 24px;
    margin-bottom: 32px;
}

.footer-name {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.footer-role {
    font-size: 14px;
    color: var(--text-secondary);
}

.footer-links {
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
}

.footer-link {
    font-size: 14px;
    color: var(--text-secondary);
}

.footer-link:hover {
    color: var(--accent);
}

.footer-copy {
    font-size: 12px;
    color: var(--text-secondary);
    text-align: center;
    padding-top: 24px;
    border-top: 1px solid var(--border);
}

/* ============================================
   Кнопка наверх
   ============================================ */
.scroll-top {
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 44px;
    height: 44px;
    background: var(--bg-card);
    border: 1px solid var(--accent);
    border-radius: 4px;
    color: var(--accent);
    font-size: 18px;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 999;
    transition: all var(--transition);
}

.scroll-top:hover {
    background: var(--accent);
    color: var(--bg-primary);
    box-shadow: 0 0 15px var(--accent-dim);
}

.scroll-top.visible {
    display: flex;
}

/* ============================================
   Анимации при скролле
   ============================================ */
.scroll-animate {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.scroll-animate.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================
   Адаптивность
   ============================================ */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 70%;
        max-width: 300px;
        height: 100vh;
        background: var(--bg-secondary);
        flex-direction: column;
        padding: 80px 32px 32px;
        gap: 24px;
        border-left: 1px solid var(--border);
        transition: right var(--transition);
    }

    .nav-menu.active {
        right: 0;
    }

    .nav-toggle {
        display: block;
        z-index: 1001;
    }

    .nav-toggle[aria-expanded="true"] .hamburger {
        background: transparent;
    }

    .nav-toggle[aria-expanded="true"] .hamburger::before {
        transform: rotate(45deg);
        top: 0;
    }

    .nav-toggle[aria-expanded="true"] .hamburger::after {
        transform: rotate(-45deg);
        top: 0;
    }

    .hero-title {
        font-size: 28px;
    }

    .hero-subtitle {
        font-size: 16px;
    }

    .hero-photo {
        width: 120px;
        height: 120px;
    }

    .section-title {
        font-size: 22px;
    }

    .section {
        padding: 60px 0;
    }

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

    .footer-content {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .footer-links {
        justify-content: center;
    }

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

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

    .stat-number {
        font-size: 22px;
    }
}

@media (min-width: 769px) and (max-width: 1024px) {
    .cards-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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