:root {
    --ys-bg-color: #f4f7fb;
    --ys-surface: #ffffff;
    --ys-text-dark: #0f172a;
    --ys-text-body: #475569;
    --ys-primary: #0052cc;
    --ys-accent: #00d2ff;
    --ys-border: #e2e8f0;
    --ys-font-main: 'Plus Jakarta Sans', sans-serif;
    --ys-font-head: 'Sora', sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body {
    background-color: var(--ys-bg-color); color: var(--ys-text-body);
    font-family: var(--ys-font-main); line-height: 1.65; overflow-x: hidden;
}

/* Уникальный графический элемент: Анимированные частицы чистого воздуха */
.ys-air-particles {
    position: absolute; top: 0; left: 0; width: 100%; height: 100%;
    background-image: radial-gradient(var(--ys-accent) 1px, transparent 1px);
    background-size: 50px 50px; opacity: 0.15; z-index: -1;
    animation: drift 60s linear infinite; pointer-events: none;
}
@keyframes drift {
    0% { background-position: 0 0; }
    100% { background-position: 1000px 1000px; }
}

.ys-navbar {
    display: flex; justify-content: space-between; align-items: center;
    padding: 1.2rem 5%; background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(15px); border-bottom: 1px solid var(--ys-border);
    position: sticky; top: 0; z-index: 1000;
}
.ys-logo {
    display: flex; align-items: center; gap: 10px;
    font-family: var(--ys-font-head); font-size: 1.5rem; font-weight: 700;
    color: var(--ys-primary); text-decoration: none;
}
.ys-logo img { width: 36px; height: 36px; }
.ys-nav-links { display: flex; gap: 2.5rem; }
.ys-nav-links a {
    color: var(--ys-text-dark); text-decoration: none; font-weight: 500;
    font-size: 0.95rem; transition: color 0.3s ease;
}
.ys-nav-links a:hover { color: var(--ys-primary); }

.ys-container { max-width: 1300px; margin: 0 auto; padding: 6rem 5%; }
h1, h2, h3 { font-family: var(--ys-font-head); color: var(--ys-text-dark); line-height: 1.2; }
h1 { font-size: clamp(2.8rem, 5vw, 4.5rem); margin-bottom: 1.5rem; letter-spacing: -1px; }
h2 { font-size: clamp(2rem, 4vw, 3rem); margin-bottom: 2rem; }

.ys-hero { display: flex; align-items: center; gap: 5rem; min-height: 80vh; position: relative; }
.ys-hero-content { flex: 1; min-width: 320px; }
.ys-hero-content p { font-size: 1.2rem; color: var(--ys-text-body); margin-bottom: 2.5rem; max-width: 500px; }
.ys-hero-visual { flex: 1; min-width: 320px; position: relative; }
.ys-hero-visual img {
    width: 100%; border-radius: 20px; object-fit: cover; aspect-ratio: 4/3;
    box-shadow: 0 30px 60px rgba(0, 82, 204, 0.1); border: 1px solid var(--ys-border);
}

.ys-btn {
    display: inline-flex; align-items: center; gap: 10px;
    background: var(--ys-primary); color: #fff; padding: 1.1rem 2.5rem;
    border-radius: 50px; font-weight: 600; text-decoration: none; border: none;
    cursor: pointer; transition: all 0.3s; font-size: 1.1rem;
}
.ys-btn:hover { background: #003d99; box-shadow: 0 10px 20px rgba(0, 82, 204, 0.2); transform: translateY(-2px); }
.ys-btn:disabled { background: #94a3b8; cursor: not-allowed; transform: none; box-shadow: none; }

.ys-features { background: var(--ys-surface); display: flex; align-items: center; gap: 4rem; flex-wrap: wrap-reverse; border-radius: 30px; padding: 4rem; box-shadow: 0 10px 40px rgba(0,0,0,0.03); margin: 4rem 5%; }
.ys-feat-img { flex: 1; min-width: 300px; }
.ys-feat-img img { width: 100%; border-radius: 16px; object-fit: cover; }
.ys-feat-text { flex: 1; min-width: 300px; }
.ys-list { list-style: none; margin-top: 2rem; }
.ys-list li { margin-bottom: 1.5rem; display: flex; align-items: flex-start; gap: 1rem; font-size: 1.05rem; }
.ys-list i { color: var(--ys-accent); font-size: 1.5rem; margin-top: 3px; background: #e0f8ff; padding: 8px; border-radius: 50%; }

.ys-dashboard { text-align: center; margin: 4rem auto; max-width: 900px; }
.ys-stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 2rem; margin-top: 3rem; }
.ys-stat-card { background: var(--ys-surface); padding: 2rem; border-radius: 16px; border: 1px solid var(--ys-border); box-shadow: 0 4px 15px rgba(0,0,0,0.02); }
.ys-stat-card h3 { font-size: 2.5rem; color: var(--ys-primary); margin-bottom: 0.5rem; }

.ys-lead-section { background: #001229; color: #fff; padding: 6rem 5%; position: relative; }
.ys-form-box { max-width: 650px; margin: 0 auto; background: var(--ys-surface); padding: 3.5rem; border-radius: 20px; box-shadow: 0 20px 50px rgba(0,0,0,0.5); }
.ys-form-box h2 { color: var(--ys-text-dark); text-align: center; margin-bottom: 2rem; }
.ys-input-group { margin-bottom: 1.5rem; }
.ys-input-group label { display: block; margin-bottom: 0.5rem; font-weight: 500; font-size: 0.9rem; color: var(--ys-text-body); }
.ys-input-group input { width: 100%; padding: 1.1rem; border: 1px solid var(--ys-border); border-radius: 8px; font-family: var(--ys-font-main); font-size: 1rem; color: var(--ys-text-dark); background: #f8fafc; transition: border 0.3s; }
.ys-input-group input:focus { outline: none; border-color: var(--ys-primary); background: #fff; }
.ys-checkbox-wrap { display: flex; gap: 12px; margin: 2rem 0; align-items: flex-start; }
.ys-checkbox-wrap input { width: 20px; height: 20px; cursor: pointer; accent-color: var(--ys-primary); }
.ys-checkbox-wrap label { font-size: 0.85rem; color: var(--ys-text-body); line-height: 1.5; }
.ys-checkbox-wrap a { color: var(--ys-primary); font-weight: 500; }
#ys-success { display: none; text-align: center; padding: 3rem 1rem; }
#ys-success i { font-size: 4rem; color: #10b981; margin-bottom: 1rem; }
#ys-success h3 { color: var(--ys-text-dark); margin-bottom: 1rem; }

.ys-faq-sec { max-width: 850px; margin: 0 auto; padding: 4rem 5%; }
.ys-accordion { border: 1px solid var(--ys-border); border-radius: 12px; margin-bottom: 1rem; background: var(--ys-surface); overflow: hidden; }
.ys-accordion summary { padding: 1.5rem; font-family: var(--ys-font-head); font-weight: 600; cursor: pointer; list-style: none; display: flex; justify-content: space-between; align-items: center; color: var(--ys-text-dark); font-size: 1.1rem; }
.ys-accordion summary::-webkit-details-marker { display: none; }
.ys-accordion summary::after { content: '\f107'; font-family: 'FontAwesome'; color: var(--ys-primary); transition: transform 0.3s; }
.ys-accordion[open] summary::after { transform: rotate(180deg); }
.ys-accordion p { padding: 0 1.5rem 1.5rem; color: var(--ys-text-body); }

.ys-footer { background: var(--ys-surface); border-top: 1px solid var(--ys-border); padding: 4rem 5% 2rem; text-align: center; }
.ys-foot-links { display: flex; justify-content: center; gap: 2.5rem; margin-bottom: 2rem; flex-wrap: wrap; }
.ys-foot-links a { color: var(--ys-text-body); text-decoration: none; font-size: 0.95rem; font-weight: 500; transition: color 0.3s; }
.ys-foot-links a:hover { color: var(--ys-primary); }
.ys-copy { color: #94a3b8; font-size: 0.85rem; }

/* Дискретный Cookie Banner снизу */
.ys-cookie { position: fixed; bottom: -100px; left: 5%; width: 90%; max-width: 1200px; margin: 0 auto; background: var(--ys-text-dark); color: #fff; padding: 1.2rem 2rem; border-radius: 12px; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 1rem; z-index: 9999; transition: bottom 0.6s ease; box-shadow: 0 10px 30px rgba(0,0,0,0.3); }
.ys-cookie.show { bottom: 20px; }
.ys-cookie p { font-size: 0.9rem; color: #cbd5e1; flex: 1; min-width: 250px; }
.ys-cookie-btns { display: flex; gap: 1rem; }
.ys-btn-outline { background: transparent; border: 1px solid #475569; color: #fff; padding: 0.6rem 1.5rem; border-radius: 6px; cursor: pointer; font-family: var(--ys-font-main); }
.ys-btn-solid { background: var(--ys-primary); border: none; color: #fff; padding: 0.6rem 1.5rem; border-radius: 6px; cursor: pointer; font-family: var(--ys-font-main); }

/* Юридические страницы */
.ys-legal-box { max-width: 900px; margin: 5rem auto; background: var(--ys-surface); padding: 4rem; border-radius: 16px; box-shadow: 0 10px 30px rgba(0,0,0,0.05); border: 1px solid var(--ys-border); }
.ys-legal-box h1 { font-size: 2.2rem; color: var(--ys-text-dark); border-bottom: 2px solid var(--ys-bg-color); padding-bottom: 1rem; margin-bottom: 2rem; }
.ys-legal-box h2 { font-size: 1.4rem; color: var(--ys-primary); margin: 2rem 0 1rem; }
.ys-legal-box p, .ys-legal-box ul { margin-bottom: 1.2rem; font-size: 1.05rem; }
.ys-legal-box ul { padding-left: 1.5rem; }
.ys-legal-box a { color: var(--ys-primary); text-decoration: underline; }

@media (max-width: 768px) {
    .ys-navbar { flex-direction: column; gap: 1rem; }
    .ys-nav-links { display: flex; flex-wrap: wrap; justify-content: center; gap: 1rem; }
    .ys-hero, .ys-features { flex-direction: column; padding: 2rem; gap: 2rem; }
    .ys-legal-box { padding: 2rem; margin: 2rem 5%; }
}