:root {
    --primary: #00CEC9;
    --primary-dark: #00b5b0;
    --secondary: #6C5CE7;
    --bg: #08080a;
    --surface: #111114;
    --surface-2: #16161a;
    --border: rgba(255,255,255,.06);
    --text: #e5e5ea;
    --text-dim: rgba(255,255,255,.6);
    --text-dim2: rgba(255,255,255,.35);
    --radius: 14px;
    --radius-sm: 10px;
}

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

html { scroll-behavior: smooth; }

body {
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', Roboto, system-ui, sans-serif;
    background: var(--bg);
    color: var(--text);
    -webkit-font-smoothing: antialiased;
    line-height: 1.5;
}

.container {
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.header {
    position: sticky;
    top: 0;
    z-index: 10;
    background: rgba(15,15,18,.85);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
}

.header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 20px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--text);
}

.brand__logo {
    width: 34px; height: 34px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 9px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 13px;
    color: #fff;
}

.brand__name {
    font-size: 16px;
    font-weight: 700;
    letter-spacing: -0.01em;
}

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

.nav a {
    color: var(--text-dim);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: color .2s;
}

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

@media (max-width: 640px) {
    .nav { display: none; }
}

/* Hero */
.hero {
    padding: 80px 0 60px;
    text-align: center;
    background: radial-gradient(ellipse at top, rgba(0,206,201,.08), transparent 60%);
}

.hero__title {
    font-size: clamp(32px, 6vw, 56px);
    font-weight: 800;
    letter-spacing: -0.02em;
    line-height: 1.1;
    margin-bottom: 20px;
    background: linear-gradient(180deg, #fff 0%, rgba(255,255,255,.7) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero__subtitle {
    font-size: clamp(15px, 2vw, 18px);
    color: var(--text-dim);
    max-width: 620px;
    margin: 0 auto 32px;
}

.hero__actions {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 32px;
}

.hero__badges {
    display: flex;
    gap: 8px;
    justify-content: center;
    flex-wrap: wrap;
}

.badge {
    display: inline-block;
    padding: 6px 14px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 20px;
    font-size: 12px;
    color: var(--text-dim);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    transition: all .2s;
    border: 1px solid transparent;
}

.btn--primary {
    background: var(--primary);
    color: #0a0a0a;
}

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

.btn--ghost {
    background: transparent;
    border-color: var(--border);
    color: var(--text);
}

.btn--ghost:hover {
    background: var(--surface);
    border-color: rgba(255,255,255,.15);
}

/* Sections */
.section {
    padding: 64px 0;
}

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

.section__title {
    font-size: clamp(26px, 4vw, 36px);
    font-weight: 700;
    text-align: center;
    letter-spacing: -0.01em;
    margin-bottom: 12px;
}

.section__subtitle {
    text-align: center;
    color: var(--text-dim);
    margin-bottom: 40px;
    font-size: 15px;
}

/* Steps */
.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 20px;
    margin-top: 40px;
}

.step {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px;
}

.step__num {
    width: 36px; height: 36px;
    border-radius: 50%;
    background: rgba(0,206,201,.1);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    margin-bottom: 16px;
    border: 1px solid rgba(0,206,201,.2);
}

.step h3 {
    font-size: 17px;
    font-weight: 700;
    margin-bottom: 8px;
}

.step p {
    color: var(--text-dim);
    font-size: 14px;
}

/* Tariffs */
.tariffs {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 16px;
    max-width: 960px;
    margin: 0 auto;
}

.tariff {
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px;
    position: relative;
    display: flex;
    flex-direction: column;
}

.tariff--featured {
    border-color: rgba(0,206,201,.3);
    background: linear-gradient(180deg, rgba(0,206,201,.04) 0%, var(--surface-2) 100%);
}

.tariff__badge {
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary);
    color: #0a0a0a;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.tariff__name {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 12px;
}

.tariff__price {
    font-size: 36px;
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 20px;
}

.tariff__price span {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-dim);
}

.tariff__features {
    list-style: none;
    margin-bottom: 24px;
    flex: 1;
}

.tariff__features li {
    padding: 6px 0;
    font-size: 14px;
    color: var(--text-dim);
    position: relative;
    padding-left: 20px;
}

.tariff__features li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--primary);
    font-weight: 700;
}

/* FAQ */
.faq {
    max-width: 720px;
    margin: 40px auto 0;
}

.faq details {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    margin-bottom: 8px;
    overflow: hidden;
}

.faq summary {
    padding: 16px 20px;
    cursor: pointer;
    font-weight: 600;
    font-size: 15px;
    list-style: none;
    position: relative;
    padding-right: 40px;
}

.faq summary::-webkit-details-marker { display: none; }

.faq summary::after {
    content: "+";
    position: absolute;
    right: 20px;
    top: 14px;
    font-size: 20px;
    color: var(--text-dim);
    transition: transform .2s;
}

.faq details[open] summary::after {
    content: "−";
}

.faq details p {
    padding: 0 20px 16px;
    color: var(--text-dim);
    font-size: 14px;
    line-height: 1.6;
}

/* Contacts */
.contacts {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
    max-width: 720px;
    margin: 40px auto 24px;
}

.contacts__block {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 18px;
}

.contacts__label {
    font-size: 11px;
    color: var(--text-dim2);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 6px;
}

.contacts__value {
    font-size: 15px;
    font-weight: 500;
}

.contacts__value a {
    color: var(--primary);
    text-decoration: none;
}

.contacts__value a:hover {
    text-decoration: underline;
}

.legal-links {
    display: flex;
    gap: 20px;
    justify-content: center;
    margin-top: 20px;
    flex-wrap: wrap;
}

.legal-links a {
    color: var(--text-dim);
    text-decoration: none;
    font-size: 13px;
    border-bottom: 1px dashed var(--border);
    padding-bottom: 1px;
}

.legal-links a:hover {
    color: var(--primary);
}

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

.footer p {
    color: var(--text-dim);
    font-size: 13px;
    margin-bottom: 8px;
}

.footer__legal {
    color: var(--text-dim2);
    font-size: 11px;
    max-width: 600px;
    margin: 0 auto;
}