/* ===== ВАРИАНТ 1: МИНИМАЛИЗМ & ВОЗДУХ ===== */
/* Светлая чистая тема с большим количеством пространства */

:root {
    --header-height: 104px;
    --bg: #ffffff;
    --bg-alt: #f8fafc;
    --bg-card: #ffffff;
    --text: #1e293b;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --accent: #f59e0b;
    --success: #10b981;
    --border: #e2e8f0;
    --border-light: #f1f5f9;
    --shadow: 0 1px 3px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 15px rgba(0,0,0,0.1);
    --radius: 12px;
    --space: 24px;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    transition: all 0.3s;
}

.header-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--header-height);
}

.logo {
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 12px;
    flex: 0 0 auto;
}

.logo-mark {
    display: block;
    width: 84px;
    height: 84px;
    object-fit: contain;
}

.logo-wordmark {
    color: #0a1e3d;
    font-size: 30px;
    font-weight: 800;
    letter-spacing: 2px;
    line-height: 1;
}

.logo-icon {
    font-size: 20px;
}

.nav {
    display: flex;
    gap: 32px;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    transition: color 0.2s;
}

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

.header-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.header-phone {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: var(--radius);
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    border: none;
    text-decoration: none;
}

.btn-glow {
    background: var(--primary);
    color: white;
}

.btn-glow:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

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

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

.btn-sm {
    padding: 8px 16px;
    font-size: 14px;
}

.btn-lg {
    padding: 16px 32px;
    font-size: 16px;
}

.btn-full {
    width: 100%;
    justify-content: center;
}

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

.btn-outline-dark:hover {
    border-color: var(--primary);
    color: var(--primary);
}

/* Hero */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding-top: var(--header-height);
    background: linear-gradient(180deg, #f8fafc 0%, #ffffff 100%);
    position: relative;
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 80px 24px;
    text-align: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: var(--bg-alt);
    border: 1px solid var(--border);
    border-radius: 50px;
    font-size: 13px;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 32px;
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: var(--accent);
    border-radius: 50%;
}

.hero h1 {
    font-size: 72px;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
    color: var(--text);
}

.hero-accent {
    color: var(--primary);
}

.hero-sub {
    font-size: 20px;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 48px;
}

.hero-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 64px;
}

.hero-stats {
    display: flex;
    gap: 48px;
    justify-content: center;
    flex-wrap: wrap;
}

.hero-stat {
    text-align: center;
}

.hero-stat strong {
    display: block;
    font-size: 48px;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 8px;
}

.hero-stat span {
    font-size: 14px;
    color: var(--text-secondary);
}

.hero-stat-divider {
    width: 1px;
    background: var(--border);
}

/* Sections */
.section {
    padding: 120px 24px;
}

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

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-tag {
    display: inline-block;
    padding: 6px 16px;
    background: var(--bg-alt);
    border: 1px solid var(--border);
    border-radius: 50px;
    font-size: 13px;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 16px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.section-title {
    font-size: 48px;
    font-weight: 800;
    margin-bottom: 16px;
    color: var(--text);
}

.section-sub {
    font-size: 18px;
    color: var(--text-secondary);
}

/* Service Cards */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
}

/* Карточка "Чаще выбирают" */
.service-card-pro {
    border-color: #f59e0b;
    background: linear-gradient(180deg, #fffbeb 0%, #ffffff 100%);
}

.service-card-pro:hover {
    border-color: #d97706;
}

.service-badge-pro {
    background: #f59e0b;
    color: #1e293b;
    font-weight: 700;
}

.service-card {
    background: white;
    padding: 40px;
    border-radius: var(--radius);
    border: 2px solid var(--border);
    transition: all 0.3s;
}

.service-card:hover {
    border-color: var(--primary);
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.service-card.featured {
    border-color: var(--primary);
    background: linear-gradient(180deg, #eff6ff 0%, #ffffff 100%);
}

.service-icon-wrap {
    width: 80px;
    height: 80px;
    background: var(--bg-alt);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
}

.service-icon {
    font-size: 40px;
}

.service-card h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 16px;
}

.service-price {
    margin-bottom: 24px;
}

.price-amount {
    font-size: 40px;
    font-weight: 800;
    color: var(--primary);
}

.price-currency {
    font-size: 24px;
    color: var(--primary);
}

.price-per {
    font-size: 16px;
    color: var(--text-secondary);
}

.service-features {
    list-style: none;
    margin-bottom: 24px;
}

.service-features li {
    padding: 12px 0;
    border-bottom: 1px solid var(--border-light);
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 15px;
}

.feat-icon {
    font-size: 18px;
}

/* Dark Section */
.section-dark {
    background: var(--text);
    color: white;
}

.section-dark .section-tag {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
    color: white;
}

.section-dark .section-title {
    color: white;
}

.section-dark .section-sub {
    color: rgba(255, 255, 255, 0.7);
}

/* Steps */
.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
}

.step-card {
    text-align: center;
    padding: 32px;
}

.step-number {
    font-size: 64px;
    font-weight: 900;
    color: rgba(255, 255, 255, 0.25);
    margin-bottom: 16px;
}

.step-card h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 12px;
    color: white;
}

.step-card p {
    color: rgba(255, 255, 255, 0.75);
    line-height: 1.6;
}

/* FAQ */
.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: white;
    border: 2px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 16px;
    overflow: hidden;
}

.faq-item summary {
    padding: 20px 24px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    list-style: none;
    transition: all 0.2s;
}

.faq-item summary:hover {
    background: var(--bg-alt);
}

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

/* Chat Widget */
#chat-widget {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 1000;
}

.chat-toggle-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 16px 24px;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 50px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    transition: all 0.3s;
}

.chat-toggle-btn:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(37, 99, 235, 0.3);
}

.chat-window {
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 380px;
    height: 500px;
    background: white;
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
    display: flex;
    flex-direction: column;
    border: 2px solid var(--border);
}

.chat-window.hidden {
    display: none;
}

.chat-header {
    padding: 20px;
    border-bottom: 2px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
}

.chat-close {
    background: none;
    border: none;
    font-size: 20px;
    cursor: pointer;
    color: var(--text-secondary);
}

.chat-messages {
    flex: 1;
    padding: 20px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.msg {
    padding: 12px 16px;
    border-radius: 12px;
    max-width: 80%;
    line-height: 1.5;
    font-size: 14px;
}

.msg.user {
    align-self: flex-end;
    background: var(--primary);
    color: white;
}

.msg.bot {
    align-self: flex-start;
    background: var(--bg-alt);
    color: var(--text);
}

.chat-input-area {
    padding: 16px;
    border-top: 2px solid var(--border);
    display: flex;
    gap: 8px;
}

.chat-input-area input {
    flex: 1;
    padding: 12px 16px;
    border: 2px solid var(--border);
    border-radius: 12px;
    font-size: 14px;
    font-family: inherit;
    outline: none;
}

.chat-input-area input:focus {
    border-color: var(--primary);
}

.chat-send {
    width: 44px;
    height: 44px;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 20px;
    cursor: pointer;
    transition: all 0.2s;
}

.chat-send:hover {
    transform: scale(1.05);
}

/* Footer */
.footer {
    background: var(--text);
    color: white;
    padding: 64px 24px 32px;
}

.footer-inner {
    max-width: 1200px;
    margin: 0 auto;
}

.footer-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 32px;
    padding-bottom: 32px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand {
    font-size: 24px;
    font-weight: 700;
}

.footer-nav {
    display: flex;
    gap: 32px;
}

.footer-nav a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color 0.2s;
}

.footer-nav a:hover {
    color: white;
}

.footer-bottom {
    text-align: center;
    color: rgba(255, 255, 255, 0.5);
    font-size: 14px;
}

.mobile-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    flex-direction: column;
    gap: 5px;
    padding: 4px;
}

.mobile-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
    transition: all 0.3s;
    display: block;
}

/* ===== MOBILE ===== */
@media (max-width: 768px) {

    :root { --header-height: 80px; }

    /* Header */
    .nav { display: none; }
    .header-phone { display: none; }
    .header-actions .btn-sm { display: none; }
    .mobile-toggle { display: flex; }
    .header-inner { padding: 0 16px; }
    .logo { gap: 8px; }
    .logo-mark { width: 62px; height: 62px; }
    .logo-wordmark { font-size: 24px; letter-spacing: 1.5px; }

    /* Nav open state */
    .nav.open {
        display: flex;
        flex-direction: column;
        gap: 0;
        position: absolute;
        top: var(--header-height);
        left: 0;
        right: 0;
        background: white;
        border-bottom: 1px solid var(--border);
        padding: 8px 0;
        box-shadow: var(--shadow-md);
        z-index: 999;
    }

    .nav.open .nav-link {
        padding: 14px 24px;
        border-bottom: 1px solid var(--border-light);
        font-size: 16px;
    }

    /* Hero */
    .hero { padding-top: var(--header-height); min-height: auto; }
    .hero-content { padding: 48px 16px; }
    .hero h1 { font-size: 38px; line-height: 1.15; }
    .hero-sub { font-size: 16px; }
    .hero-actions { flex-direction: column; align-items: stretch; gap: 12px; margin-bottom: 40px; }
    .hero-actions .btn { width: 100%; justify-content: center; }
    .hero-badge { font-size: 12px; margin-bottom: 20px; }
    .hero-stats { gap: 0; flex-direction: row; justify-content: space-around; width: 100%; }
    .hero-stat strong { font-size: 32px; }
    .hero-stat span { font-size: 12px; }
    .hero-stat-divider { width: 1px; height: 50px; align-self: center; }

    /* Sections */
    .section { padding: 60px 16px; }
    .section-title { font-size: 30px; }
    .section-sub { font-size: 15px; }
    .section-header { margin-bottom: 40px; }

    /* Services */
    .services-grid { grid-template-columns: 1fr; gap: 20px; }
    .service-card { padding: 24px; }
    .service-card h3 { font-size: 20px; }
    .price-amount { font-size: 32px; }

    /* Steps */
    .steps-grid { grid-template-columns: 1fr; gap: 24px; }
    .step-card { padding: 24px 16px; }
    .step-number { font-size: 48px; }
    .step-card h3 { font-size: 20px; }

    /* Instructors */
    .instructors-grid { justify-content: center; gap: 16px; }
    .instructor-card { padding: 24px; }
    .features-row { flex-direction: column; align-items: center; gap: 16px; margin-top: 32px; }

    /* FAQ */
    .faq-item summary { padding: 16px; font-size: 15px; }
    .faq-item p { padding: 0 16px 16px; font-size: 14px; }

    /* CTA */
    .cta-section { padding: 60px 16px; }
    .cta-content h2 { font-size: 28px; }
    .cta-content p { font-size: 15px; }
    .cta-actions { flex-direction: column; align-items: stretch; }
    .cta-actions .btn { width: 100%; justify-content: center; }

    /* Footer */
    .footer { padding: 40px 16px 24px; }
    .footer-top { flex-direction: column; gap: 24px; text-align: center; }
    .footer-nav { flex-wrap: wrap; justify-content: center; gap: 8px 20px; }
    .footer-nav a { display: inline-block; padding: 6px 4px; font-size: 15px; }

    /* Chat */
    .chat-toggle-btn { padding: 12px 16px; font-size: 13px; }
    .chat-window {
        width: calc(100vw - 24px);
        height: calc(100vh - 100px);
        bottom: 12px;
        right: 12px;
        left: 12px;
    }
}

@media (max-width: 400px) {
    .hero h1 { font-size: 30px; }
    .section-title { font-size: 26px; }
    .contacts-grid { grid-template-columns: 1fr; }
    .hero-stats { flex-direction: column; gap: 16px; }
    .hero-stat-divider { display: none; }
    .footer-nav a { padding: 8px 8px; font-size: 14px; }
    .app-download-info { padding: 0 8px; }
    .chat-toggle-btn { padding: 10px 14px; font-size: 12px; }
}

/* Utility Classes */
.hidden { display: none !important; }
.reveal-up { opacity: 1; }
.scroll-progress { display: none; }
#hero-canvas { display: none; }
.hero-glow { display: none; }
.hero-grid-bg { display: none; }
.hero-scroll-indicator { display: none; }
.stats-ticker { display: none; }
.ticker-row { display: none; }
.cta-section { padding: 80px 24px; background: var(--bg-alt); }
.cta-content { text-align: center; max-width: 600px; margin: 0 auto; }
.cta-content h2 { font-size: 36px; font-weight: 800; margin-bottom: 16px; }
.cta-content h3 { font-size: 28px; font-weight: 700; margin-bottom: 24px; color: var(--text); }
.cta-content p { font-size: 18px; color: var(--text-secondary); margin-bottom: 32px; }
.cta-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.contacts-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; justify-content: center; }
.contact-card { background: white; padding: 32px; border-radius: var(--radius); border: 2px solid var(--border); text-align: center; transition: all 0.3s; color: var(--text); width: 100%; box-sizing: border-box; }
.contact-card:hover { border-color: var(--primary); transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.contact-icon-wrap { width: 64px; height: 64px; background: var(--bg-alt); border-radius: 16px; display: flex; align-items: center; justify-content: center; margin: 0 auto 16px; }
.contact-icon { font-size: 32px; }
.contact-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 12px; color: var(--text); }
.contact-card p { color: var(--text-secondary); font-size: 15px; }
.contact-link { color: var(--primary); text-decoration: none; font-weight: 600; font-size: 15px; }

@media (max-width: 768px) {
    .contacts-grid { grid-template-columns: 1fr; gap: 16px; }
    .contact-card { padding: 20px 16px; }
    .contact-card h3 { font-size: 15px; }
    .contact-link { font-size: 13px; }
}

.instructors-grid { display: flex; flex-wrap: wrap; justify-content: center; align-items: stretch; gap: 28px; max-width: 1140px; margin: 0 auto; }
.instructor-card { flex: 1 1 300px; max-width: 350px; background: rgba(255, 255, 255, 0.05); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border: 1px solid rgba(255, 255, 255, 0.12); border-radius: 20px; padding: 32px 24px; text-align: center; display: flex; flex-direction: column; align-items: center; transition: all 0.3s; box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2); }
.instructor-card:hover { border-color: rgba(59, 130, 246, 0.5); transform: translateY(-6px); background: rgba(255, 255, 255, 0.08); }
.instructor-card h3 { font-size: 20px; font-weight: 700; margin-bottom: 8px; color: #ffffff; }
.instructor-spec { display: inline-block; padding: 4px 14px; background: rgba(37, 99, 235, 0.2); color: #60a5fa; border: 1px solid rgba(59, 130, 246, 0.35); border-radius: 50px; font-size: 13px; font-weight: 600; margin-bottom: 10px; }
.instructor-exp { color: rgba(255, 255, 255, 0.85); font-size: 14px; margin-bottom: 8px; font-weight: 500; }
.instructor-desc { color: rgba(255, 255, 255, 0.65); font-size: 13.5px; line-height: 1.5; margin-top: 4px; }
.features-row { display: flex; gap: 32px; justify-content: center; flex-wrap: wrap; margin-top: 48px; }
.feature-item { display: flex; align-items: center; gap: 8px; font-size: 15px; }
.feature-icon { font-size: 20px; }
.service-badge { position: absolute; top: 16px; right: 16px; padding: 6px 12px; background: var(--primary); color: white; border-radius: 8px; font-size: 12px; font-weight: 700; }
.card-shine { display: none; }
.tilt-card { position: relative; }
.btn-icon { font-size: 1.2em; }
.phone-pulse { display: none; }
.chat-pulse { display: none; }
.chat-label { display: inline; }

/* ── App Download Section ──────────────────────────────────────────────────── */
.app-section { overflow: hidden; }

.app-blocks {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 64px;
}

.app-block {
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 20px;
    padding: 32px 24px;
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s;
}

.app-block:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.3);
}

.app-block-icon {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.app-block h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 10px;
}

.app-block p {
    font-size: 0.9rem;
    color: rgba(255,255,255,0.6);
    line-height: 1.6;
}

.app-download {
    display: flex;
    align-items: center;
    gap: 64px;
    justify-content: center;
}

.app-phone-mockup {
    flex-shrink: 0;
    width: 180px;
    height: 320px;
    background: rgba(255,255,255,0.05);
    border: 2px solid rgba(255,255,255,0.15);
    border-radius: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 30px 80px rgba(0,0,0,0.4), inset 0 1px 0 rgba(255,255,255,0.1);
    position: relative;
    overflow: hidden;
}

.app-phone-mockup::before {
    content: '';
    position: absolute;
    top: 12px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 6px;
    background: rgba(255,255,255,0.2);
    border-radius: 3px;
}

.phone-screen {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.phone-status-bar {
    width: 80px;
    height: 3px;
    background: rgba(255,255,255,0.1);
    border-radius: 2px;
    margin-bottom: 16px;
}

.phone-app-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, #FF6B35, #e55a2b);
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    color: #fff;
    box-shadow: 0 8px 24px rgba(255,107,53,0.4);
}

.phone-app-name {
    font-size: 1rem;
    font-weight: 800;
    color: #fff;
    letter-spacing: 2px;
}

.phone-app-sub {
    font-size: 0.65rem;
    color: rgba(255,255,255,0.4);
    letter-spacing: 1px;
}

.app-download-info {
    max-width: 420px;
}

.app-badges {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 28px;
}

.app-badge-item {
    display: flex;
    align-items: center;
    gap: 10px;
    color: rgba(255,255,255,0.8);
    font-size: 0.95rem;
}

.badge-icon { font-size: 1rem; }

.app-download-btn {
    width: 100%;
    justify-content: center;
    font-size: 1.05rem;
    padding: 16px 32px;
    margin-bottom: 16px;
}

.app-install-hint {
    font-size: 0.8rem;
    color: rgba(255,255,255,0.4);
    line-height: 1.5;
    text-align: center;
}

@media (max-width: 768px) {
    .app-blocks {
        grid-template-columns: 1fr;
    }
    .app-download {
        flex-direction: column;
        gap: 32px;
        text-align: center;
    }
    .app-badges {
        align-items: center;
    }
}

/* ── App Download Banners ──────────────────────────────────────────────────── */
.app-banner-strip {
    background: linear-gradient(135deg, #1a1f4e, #0d1235);
    border-top: 1px solid rgba(255,107,53,0.3);
    border-bottom: 1px solid rgba(255,107,53,0.3);
    padding: 18px 0;
}

.app-banner-accent {
    background: linear-gradient(135deg, #1f1040, #0d1235);
    border-color: rgba(255,107,53,0.4);
}

.app-banner-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.app-banner-text {
    display: flex;
    align-items: center;
    gap: 16px;
}

.app-banner-icon {
    font-size: 1.8rem;
    flex-shrink: 0;
}

.app-banner-text strong {
    display: block;
    color: #fff;
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 2px;
}

.app-banner-text span {
    color: rgba(255,255,255,0.6);
    font-size: 0.85rem;
}

@media (max-width: 600px) {
    .app-banner-inner {
        flex-direction: column;
        text-align: center;
    }
    .app-banner-text {
        flex-direction: column;
        gap: 8px;
    }
}


/* Социальные сети в футере */
.footer-social {
    display: flex;
    gap: 16px;
    align-items: center;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(10px);
    color: rgba(255, 255, 255, 0.8);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.social-link:hover {
    background: rgba(255, 255, 255, 0.15);
    color: #fff;
    transform: translateY(-2px);
    border-color: rgba(255, 255, 255, 0.2);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

.social-link svg {
    width: 20px;
    height: 20px;
}

@media (max-width: 768px) {
    .footer-top {
        flex-direction: column;
        gap: 24px;
        text-align: center;
    }

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

/* ── Instructors Cards & Grid Alignment ───────────────────────────────────── */
.instructors-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: stretch;
    gap: 28px;
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 16px;
}

.instructor-card {
    flex: 1 1 300px;
    max-width: 350px;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 20px;
    padding: 32px 24px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    position: relative;
    overflow: hidden;
}

.instructor-card:hover {
    transform: translateY(-8px);
    border-color: rgba(59, 130, 246, 0.5);
    background: rgba(255, 255, 255, 0.08);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.35), 0 0 20px rgba(37, 99, 235, 0.2);
}

.instructor-avatar {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.25), rgba(255, 107, 53, 0.25));
    border: 2px solid rgba(255, 255, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    margin-bottom: 20px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.instructor-card h3 {
    font-size: 20px;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 10px;
    line-height: 1.3;
}

.instructor-spec {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(37, 99, 235, 0.2);
    color: #60a5fa;
    border: 1px solid rgba(59, 130, 246, 0.35);
    border-radius: 50px;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 12px;
}

.instructor-exp {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.85);
    font-weight: 500;
    margin-bottom: 12px;
}

.instructor-desc {
    font-size: 13.5px;
    color: rgba(255, 255, 255, 0.65);
    line-height: 1.6;
    margin-top: 4px;
}

.features-row {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 36px;
    margin-top: 44px;
    padding-top: 28px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 15px;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.85);
}

.feature-icon {
    font-size: 20px;
}