/* css/style.css — улучшенный дизайн, адаптив, анимации */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg-body: #f5f7fc;
    --bg-card: #ffffff;
    --bg-nav: rgba(255,255,255,0.98);
    --text-primary: #1a2c3e;
    --text-secondary: #44566c;
    --text-dim: #5b6e8c;
    --border-light: #e7edf4;
    --border-card: #e8f0f7;
    --accent: #2563eb;
    --accent-hover: #1d4ed8;
    --accent-soft: rgba(37,99,235,0.08);
    --badge-bg: #f0f4fa;
    --footer-border: #e5edf4;
    --shadow-sm: 0 2px 6px rgba(0,0,0,0.02);
    --shadow-md: 0 6px 14px rgba(0, 0, 0, 0.04);
    --shadow-lg: 0 20px 35px -12px rgba(0,0,0,0.1);
    --transition: all 0.2s ease;
}

body.dark {
    --bg-body: #0f1724;
    --bg-card: #1e293b;
    --bg-nav: #0f1724e6;
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-dim: #94a3b8;
    --border-light: #2d3a4e;
    --border-card: #334155;
    --accent: #3b82f6;
    --accent-hover: #60a5fa;
    --accent-soft: rgba(59,130,246,0.12);
    --badge-bg: #334155;
    --footer-border: #2d3a4e;
    --shadow-sm: 0 2px 6px rgba(0,0,0,0.2);
    --shadow-md: 0 6px 14px rgba(0,0,0,0.2);
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-body);
    color: var(--text-primary);
    line-height: 1.5;
    transition: background-color 0.2s ease, color 0.2s ease;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 28px;
}

/* Navbar */
.navbar {
    background: var(--bg-nav);
    border-bottom: 1px solid var(--border-light);
    padding: 18px 0;
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(12px);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.logo {
    font-size: 28px;
    font-weight: 800;
    letter-spacing: -0.3px;
    display: flex;
    align-items: baseline;
}

.logo-softs {
    background: linear-gradient(135deg, #1e2b3c 0%, #0f1a24 100%);
    padding: 5px 12px 5px 14px;
    color: white;
    border-radius: 12px 4px 12px 4px;
}

.logo-ai {
    background: var(--accent);
    color: white;
    padding: 5px 12px;
    border-radius: 4px 12px 4px 12px;
    margin-left: 6px;
}

.logo small {
    font-size: 11px;
    font-weight: 500;
    color: var(--text-dim);
    margin-left: 10px;
}

.nav-links {
    display: flex;
    gap: 28px;
    align-items: center;
    flex-wrap: wrap;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
    font-size: 14px;
    transition: color 0.2s;
}

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

.btn-primary-nav {
    background: var(--accent);
    color: white !important;
    padding: 8px 22px;
    border-radius: 40px;
    font-weight: 600;
    transition: var(--transition);
}

.btn-primary-nav:hover {
    background: var(--accent-hover);
    transform: translateY(-1px);
}

.controls-group {
    display: flex;
    align-items: center;
    gap: 12px;
}

.theme-toggle, .lang-btn {
    background: transparent;
    border: 1px solid var(--border-light);
    border-radius: 40px;
    padding: 6px 12px;
    cursor: pointer;
    font-size: 13px;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--text-primary);
    transition: var(--transition);
}

.theme-toggle:hover, .lang-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.lang-selector { position: relative; display: inline-block; }

.lang-dropdown {
    position: absolute;
    top: 110%;
    right: 0;
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: 20px;
    padding: 6px 0;
    min-width: 130px;
    box-shadow: var(--shadow-lg);
    z-index: 120;
    display: none;
}

.lang-dropdown.show { display: block; }

.lang-option {
    display: block;
    width: 100%;
    text-align: left;
    padding: 8px 16px;
    background: transparent;
    border: none;
    cursor: pointer;
    font-size: 13px;
    color: var(--text-primary);
    transition: var(--transition);
}

.lang-option:hover { background: var(--badge-bg); color: var(--accent); }

/* Hero Section */
.hero {
    padding: 80px 0 60px;
    text-align: center;
    background: linear-gradient(135deg, var(--bg-body) 0%, var(--accent-soft) 100%);
}

.hero h1 {
    font-size: 52px;
    font-weight: 800;
    letter-spacing: -1px;
    margin-bottom: 20px;
}

.hero h1 span {
    color: var(--accent);
    background: var(--accent-soft);
    padding: 0 12px;
    border-radius: 20px;
    display: inline-block;
}

.hero p {
    font-size: 18px;
    color: var(--text-secondary);
    max-width: 680px;
    margin: 0 auto 36px;
}

.badge-list {
    display: flex;
    justify-content: center;
    gap: 14px;
    flex-wrap: wrap;
}

.badge {
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    padding: 7px 20px;
    border-radius: 40px;
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition);
}

.badge:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 60px;
    margin-top: 60px;
    padding-top: 40px;
    border-top: 1px solid var(--border-light);
}

.stat-num {
    font-size: 42px;
    font-weight: 800;
    color: var(--accent);
    line-height: 1;
}

.stat-label { font-size: 13px; color: var(--text-dim); margin-top: 6px; }

/* Sections */
section { padding: 80px 0; }

.section-label {
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 16px;
}

.section-title {
    font-size: 38px;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 48px;
}

/* Agents Grid */
.agents-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 24px;
}

.agent-card {
    background: var(--bg-card);
    border-radius: 24px;
    padding: 28px;
    border: 1px solid var(--border-card);
    transition: var(--transition);
}

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

.agent-card.featured {
    background: linear-gradient(135deg, var(--bg-card) 0%, var(--accent-soft) 100%);
    border-left: 3px solid var(--accent);
}

.agent-icon { font-size: 40px; margin-bottom: 16px; }
.agent-name { font-size: 24px; font-weight: 700; margin-bottom: 12px; }
.agent-desc { font-size: 14px; color: var(--text-secondary); margin-bottom: 20px; }

.agent-tasks { display: flex; flex-direction: column; gap: 8px; margin-bottom: 24px; }
.task-item { font-size: 13px; color: var(--text-dim); padding-left: 18px; position: relative; }
.task-item::before { content: '—'; position: absolute; left: 0; color: var(--accent); }

/* Pain Grid */
.pain-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 24px;
    margin-top: 40px;
}

.pain-card {
    background: var(--bg-card);
    border-radius: 20px;
    padding: 28px;
    border: 1px solid var(--border-card);
    transition: var(--transition);
}

.pain-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.pain-icon { font-size: 36px; margin-bottom: 16px; }
.pain-title { font-size: 22px; font-weight: 700; margin-bottom: 12px; }
.pain-text { font-size: 14px; color: var(--text-secondary); margin-bottom: 16px; }
.pain-result { font-size: 13px; color: var(--accent); font-weight: 600; border-left: 2px solid var(--accent); padding-left: 14px; }

/* How it works */
.how-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: start;
}

.step { display: flex; gap: 20px; margin-bottom: 32px; }
.step-num { font-size: 48px; font-weight: 800; color: var(--accent); opacity: 0.5; min-width: 70px; transition: var(--transition); }
.step:hover .step-num { opacity: 1; }
.step-title { font-size: 24px; font-weight: 700; margin-bottom: 8px; }
.step-body { font-size: 15px; color: var(--text-secondary); }

.how-visual {
    background: var(--bg-card);
    border-radius: 24px;
    padding: 40px;
    text-align: center;
    border: 1px solid var(--border-card);
}

.visual-icon { font-size: 80px; margin-bottom: 20px; }

/* Tech Grid */
.tech-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
}

.tech-item { display: flex; gap: 20px; margin-bottom: 28px; }
.tech-icon { font-size: 36px; }
.tech-name { font-size: 20px; font-weight: 700; margin-bottom: 6px; }
.tech-desc { font-size: 14px; color: var(--text-secondary); }

.tech-code-block {
    background: var(--bg-card);
    border-radius: 24px;
    padding: 28px;
    border: 1px solid var(--border-card);
    font-family: 'Courier New', monospace;
    font-size: 12px;
    overflow-x: auto;
}

.tech-code-block pre {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Markets & Reviews */
.markets-grid, .reviews-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 24px;
}

.market-card, .review-card {
    background: var(--bg-card);
    border-radius: 20px;
    padding: 24px;
    border: 1px solid var(--border-card);
    transition: var(--transition);
}

.market-card:hover, .review-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.market-emoji { font-size: 40px; margin-bottom: 12px; }
.market-info-name { font-size: 22px; font-weight: 700; margin-bottom: 8px; }
.market-info-desc { font-size: 13px; color: var(--text-secondary); }

.market-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.tag { font-size: 11px; padding: 4px 12px; background: var(--badge-bg); border-radius: 40px; }

.review-quote { font-size: 40px; color: var(--accent); line-height: 1; margin-bottom: 16px; }
.review-text { font-size: 14px; color: var(--text-secondary); margin-bottom: 20px; font-style: italic; }

/* CTA Block */
.cta-wrapper { margin: 40px auto; }
.cta-block {
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-hover) 100%);
    border-radius: 32px;
    padding: 64px 48px;
    text-align: center;
    color: white;
}

.cta-block h3 { font-size: 36px; margin-bottom: 16px; }

.btn-white-cta {
    background: white;
    color: var(--accent);
    padding: 14px 36px;
    border-radius: 48px;
    font-weight: 700;
    display: inline-block;
    text-decoration: none;
    transition: var(--transition);
}

.btn-white-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.2);
}

/* FAQ */
.faq-item { border-bottom: 1px solid var(--border-light); padding: 20px 0; }
.faq-item summary { cursor: pointer; font-weight: 600; font-size: 18px; list-style: none; display: flex; justify-content: space-between; align-items: center; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item p { margin-top: 16px; color: var(--text-secondary); line-height: 1.6; padding-right: 20px; }

/* Footer */
footer {
    background: var(--bg-card);
    padding: 48px 0 32px;
    border-top: 1px solid var(--border-light);
    margin-top: 40px;
}

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

/* Go Top Button */
.go-top {
    position: fixed; bottom: 30px; right: 30px;
    width: 48px; height: 48px;
    background: var(--accent); color: white;
    border: none; border-radius: 50%;
    cursor: pointer; font-size: 24px;
    display: flex; align-items: center; justify-content: center;
    opacity: 0; visibility: hidden;
    transition: var(--transition); z-index: 99;
    box-shadow: var(--shadow-md);
}

.go-top.show { opacity: 1; visibility: visible; }
.go-top:hover { transform: translateY(-3px); background: var(--accent-hover); }

/* Cookie Banner */
.cookie-banner {
    position: fixed; bottom: 20px; left: 20px; right: 20px;
    max-width: 500px; background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: 20px; padding: 18px 24px;
    display: flex; align-items: center; justify-content: space-between;
    gap: 16px; z-index: 200;
    box-shadow: var(--shadow-lg);
}

.cookie-btn {
    background: var(--accent); color: white;
    border: none; padding: 8px 22px;
    border-radius: 40px; cursor: pointer;
    transition: var(--transition);
}

.cookie-btn:hover { background: var(--accent-hover); }

/* Demo Modal */
.demo-modal {
    display: none;
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: rgba(0,0,0,0.6);
    backdrop-filter: blur(6px);
    z-index: 1000;
    justify-content: center;
    align-items: center;
}

.demo-modal-content {
    background: var(--bg-card);
    max-width: 440px;
    width: 90%;
    border-radius: 32px;
    padding: 32px;
    position: relative;
    animation: modalFadeIn 0.3s ease;
}

@keyframes modalFadeIn {
    from { opacity: 0; transform: scale(0.95); }
    to { opacity: 1; transform: scale(1); }
}

.demo-modal-content h3 { font-size: 28px; margin-bottom: 8px; }
.demo-modal-content input {
    width: 100%;
    padding: 14px;
    margin: 12px 0;
    border-radius: 60px;
    border: 1px solid var(--border-light);
    background: var(--bg-card);
    color: var(--text-primary);
    font-size: 14px;
}

.demo-modal-content button {
    width: 100%;
    background: var(--accent);
    color: white;
    border: none;
    padding: 14px;
    border-radius: 60px;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
}

.demo-modal-content button:hover { background: var(--accent-hover); }

#closeModalBtn {
    background: transparent;
    color: var(--text-dim);
    margin-top: 12px;
    font-size: 14px;
}

/* Responsive */
@media (max-width: 800px) {
    .hero h1 { font-size: 32px; }
    .hero-stats { flex-wrap: wrap; gap: 24px; }
    .how-grid, .tech-grid { grid-template-columns: 1fr; }
    .section-title { font-size: 28px; }
    .container { padding: 0 20px; }
    .cta-block { padding: 40px 24px; }
    .cta-block h3 { font-size: 28px; }
    .navbar .container { flex-direction: column; }
    .nav-links { justify-content: center; }
}

@media (max-width: 480px) {
    .agents-grid, .pain-grid, .markets-grid, .reviews-grid { grid-template-columns: 1fr; }
    .hero-stats { gap: 20px; }
    .stat-num { font-size: 32px; }
}