/* ObsidianExchange — единая дизайн-система сайта */
:root {
    --bg: #050507;
    --card: #0f0f14;
    --card-2: rgba(255,255,255,.03);
    --input: #151520;
    --border: rgba(168,85,247,.18);
    --border-strong: rgba(168,85,247,.35);
    --purple: #8b5cf6;
    --purple-2: #a855f7;
    --green: #00ff9d;
    --text: #f3f3f3;
    --muted: #8b8ba3;
    --radius: 22px;
    --radius-sm: 14px;
    --max-width: 1100px;
}

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

html { scroll-behavior: smooth; }

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: radial-gradient(circle at top, rgba(139,92,246,.22), transparent 45%), linear-gradient(180deg,#050507,#09090f);
    color: var(--text);
    min-height: 100vh;
    line-height: 1.55;
    position: relative;
    overflow-x: hidden;
}

/* Анимированная фоновая сетка, как на платёжной странице */
.matrix-bg {
    position: fixed;
    inset: 0;
    background-image:
        linear-gradient(rgba(168,85,247,.06) 1px, transparent 1px),
        linear-gradient(90deg, rgba(168,85,247,.04) 1px, transparent 1px);
    background-size: 42px 42px;
    pointer-events: none;
    z-index: 0;
    mask-image: radial-gradient(circle at top, rgba(0,0,0,.9), transparent 70%);
}

a { color: inherit; }

.wrap {
    position: relative;
    z-index: 1;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 20px;
}

/* ---------- Навигация ---------- */
.navbar {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(8,8,12,.7);
    backdrop-filter: blur(18px);
    border-bottom: 1px solid var(--border);
}
.navbar .wrap {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 68px;
}
.logo {
    font-size: 20px;
    font-weight: 800;
    background: linear-gradient(90deg,#fff,#c084fc);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-decoration: none;
    white-space: nowrap;
}
.nav-links {
    display: flex;
    align-items: center;
    gap: 6px;
}
.nav-links a {
    text-decoration: none;
    color: var(--muted);
    font-size: 14px;
    font-weight: 600;
    padding: 10px 14px;
    border-radius: 12px;
    transition: all .2s;
}
.nav-links a:hover, .nav-links a.active {
    color: #fff;
    background: var(--card-2);
}
.nav-cta {
    margin-left: 6px;
    background: linear-gradient(90deg, #7c3aed, #a855f7) !important;
    color: #fff !important;
}
.burger {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}
.burger span { width: 22px; height: 2px; background: #fff; border-radius: 2px; transition: all .25s; }

@media (max-width: 860px) {
    .burger { display: flex; }
    .nav-links {
        position: absolute;
        top: 68px;
        left: 0;
        right: 0;
        flex-direction: column;
        align-items: stretch;
        background: rgba(8,8,12,.97);
        border-bottom: 1px solid var(--border);
        padding: 10px 20px 18px;
        gap: 4px;
        display: none;
    }
    .nav-links.open { display: flex; }
    .nav-links a { padding: 12px 14px; }
    .nav-cta { margin-left: 0; text-align: center; }
}

/* ---------- Hero ---------- */
.hero {
    padding: 70px 0 40px;
    text-align: center;
}
.hero h1 {
    font-size: clamp(32px, 6vw, 52px);
    font-weight: 800;
    background: linear-gradient(90deg,#fff,#c084fc,#7c3aed);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 16px;
    line-height: 1.15;
}
.hero p.lead {
    color: var(--muted);
    font-size: 18px;
    max-width: 620px;
    margin: 0 auto 30px;
}
.hero-cta {
    display: flex;
    gap: 14px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 10px;
}

/* ---------- Кнопки ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: var(--radius);
    font-size: 16px;
    font-weight: 700;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: all .25s;
}
.btn-primary {
    background: linear-gradient(90deg, #7c3aed, #a855f7);
    color: #fff;
    box-shadow: 0 0 30px rgba(168,85,247,.35);
}
.btn-primary:hover { box-shadow: 0 0 45px rgba(168,85,247,.6); transform: translateY(-2px); }
.btn-secondary {
    background: var(--card-2);
    color: #fff;
    border: 1px solid var(--border-strong);
}
.btn-secondary:hover { background: rgba(168,85,247,.12); transform: translateY(-2px); }
.btn:active { transform: scale(.98); }
.btn-block { width: 100%; }

/* ---------- Карточки / секции ---------- */
.section { padding: 50px 0; }
.section-title {
    font-size: clamp(24px, 4vw, 34px);
    font-weight: 800;
    text-align: center;
    margin-bottom: 12px;
}
.section-sub {
    text-align: center;
    color: var(--muted);
    max-width: 600px;
    margin: 0 auto 36px;
}
.card {
    background: rgba(15,15,20,.75);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 26px;
    box-shadow: 0 0 60px rgba(168,85,247,.08);
}

/* ---------- Тикер курсов ---------- */
.rates-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
    margin: 30px 0;
}
.rate-card {
    background: rgba(15,15,20,.75);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 22px;
    text-align: center;
    transition: transform .25s, box-shadow .25s;
}
.rate-card:hover { transform: translateY(-4px); box-shadow: 0 0 40px rgba(168,85,247,.25); }
.rate-card .coin { font-size: 15px; color: var(--muted); font-weight: 600; letter-spacing: .5px; margin-bottom: 8px; }
.rate-card .value { font-size: 26px; font-weight: 800; color: var(--green); }
.rate-card .value.loading { color: var(--muted); font-size: 16px; }

/* ---------- Преимущества ---------- */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
    gap: 18px;
}
.feature-card {
    background: rgba(15,15,20,.7);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    text-align: left;
}
.feature-card .icon { font-size: 28px; margin-bottom: 10px; display: block; }
.feature-card h3 { font-size: 17px; margin-bottom: 6px; }
.feature-card p { color: var(--muted); font-size: 14px; }

/* ---------- Статистика ---------- */
.stats-bar {
    display: flex;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
    margin: 10px 0 0;
}
.stat { text-align: center; }
.stat .num { font-size: 30px; font-weight: 800; color: var(--purple-2); }
.stat .label { color: var(--muted); font-size: 13px; margin-top: 4px; }

/* ---------- Таймлайн "Как это работает" ---------- */
.timeline {
    display: flex;
    flex-direction: column;
    gap: 18px;
    max-width: 720px;
    margin: 0 auto;
}
.timeline-step {
    display: flex;
    gap: 18px;
    align-items: flex-start;
    background: rgba(15,15,20,.7);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 22px;
}
.timeline-step .num {
    flex: none;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: linear-gradient(135deg, #7c3aed, #a855f7);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 18px;
}
.timeline-step h3 { font-size: 17px; margin-bottom: 4px; }
.timeline-step p { color: var(--muted); font-size: 14px; }

/* ---------- Таблицы (тарифы) ---------- */
.table-wrap { overflow-x: auto; border-radius: var(--radius); border: 1px solid var(--border); }
table.tariffs { width: 100%; border-collapse: collapse; min-width: 420px; }
table.tariffs th, table.tariffs td {
    padding: 14px 18px;
    text-align: left;
    font-size: 14px;
    border-bottom: 1px solid var(--border);
}
table.tariffs th { color: var(--muted); text-transform: uppercase; font-size: 12px; letter-spacing: .5px; background: var(--card-2); }
table.tariffs tr:last-child td { border-bottom: none; }
table.tariffs td.highlight { color: var(--green); font-weight: 700; }

/* ---------- Калькулятор ---------- */
.calc {
    max-width: 480px;
    margin: 0 auto;
}
.input-group { margin-bottom: 16px; text-align: left; }
.input-group label {
    display: block;
    font-size: 12px;
    color: var(--muted);
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: .5px;
}
.input-group input, .input-group select {
    width: 100%;
    padding: 13px 16px;
    background: var(--input);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: #fff;
    font-size: 16px;
    outline: none;
}
.input-group input:focus, .input-group select:focus { border-color: var(--border-strong); }
.calc-result {
    margin-top: 16px;
    padding: 18px;
    background: var(--input);
    border-radius: var(--radius);
    text-align: center;
}
.calc-result .big { font-size: 24px; font-weight: 800; color: var(--green); }
.calc-result .small { color: var(--muted); font-size: 13px; margin-top: 4px; }

/* ---------- FAQ аккордеон ---------- */
.faq-list { max-width: 760px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
.faq-item {
    background: rgba(15,15,20,.7);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    overflow: hidden;
}
.faq-question {
    width: 100%;
    text-align: left;
    background: none;
    border: none;
    color: #fff;
    font-size: 16px;
    font-weight: 700;
    padding: 18px 20px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
}
.faq-question .arrow { transition: transform .25s; color: var(--purple-2); flex: none; }
.faq-item.open .faq-question .arrow { transform: rotate(180deg); }
.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height .3s ease;
    color: var(--muted);
    font-size: 14px;
}
.faq-answer-inner { padding: 0 20px 18px; }
.faq-item.open .faq-answer { max-height: 320px; }

/* ---------- Контакты / отзывы ---------- */
.contacts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 18px;
}
.contact-card {
    background: rgba(15,15,20,.7);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 26px;
    text-align: center;
}
.contact-card .icon { font-size: 32px; margin-bottom: 10px; }
.contact-card h3 { margin-bottom: 6px; }
.contact-card p { color: var(--muted); font-size: 14px; margin-bottom: 16px; }

/* ---------- Футер ---------- */
.footer {
    border-top: 1px solid var(--border);
    padding: 30px 0;
    text-align: center;
    color: var(--muted);
    font-size: 13px;
}
.footer a { color: var(--purple-2); text-decoration: none; font-weight: 600; }
.footer a:hover { text-decoration: underline; }

/* ---------- Анимации ---------- */
@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }
.section, .hero { animation: fadeIn .5s ease; }

/* ---------- Личный кабинет ---------- */
.dash-layout {
    display: grid;
    grid-template-columns: 230px 1fr;
    gap: 24px;
    padding: 40px 0;
    align-items: start;
}
.dash-sidebar {
    background: rgba(15,15,20,.75);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    position: sticky;
    top: 20px;
}
.dash-user {
    font-size: 14px;
    color: var(--muted);
    word-break: break-all;
    padding-bottom: 14px;
    margin-bottom: 14px;
    border-bottom: 1px solid var(--border);
}
.dash-nav { display: flex; flex-direction: column; gap: 4px; }
.dash-nav a, .dash-logout {
    display: block;
    padding: 11px 14px;
    border-radius: var(--radius-sm);
    color: var(--text);
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
    background: none;
    border: none;
    width: 100%;
    text-align: left;
    cursor: pointer;
    font-family: inherit;
}
.dash-nav a:hover, .dash-logout:hover { background: rgba(168,85,247,.12); }
.dash-nav a.active { background: linear-gradient(90deg, #7c3aed, #a855f7); color: #fff; }
.dash-logout { color: #ff6b6b; margin-top: 8px; }

.dash-content h1 { font-size: 26px; font-weight: 800; margin-bottom: 18px; }
.dash-card {
    background: rgba(15,15,20,.75);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    margin-bottom: 20px;
}
.dash-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 14px;
    margin-bottom: 20px;
}
.dash-stat { background: rgba(15,15,20,.75); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px; text-align: center; }
.dash-stat .num { font-size: 24px; font-weight: 800; color: var(--purple-2); }
.dash-stat .label { color: var(--muted); font-size: 13px; margin-top: 4px; }

table.dash-table { width: 100%; border-collapse: collapse; }
table.dash-table th, table.dash-table td {
    padding: 12px 14px;
    text-align: left;
    font-size: 14px;
    border-bottom: 1px solid var(--border);
}
table.dash-table th { color: var(--muted); text-transform: uppercase; font-size: 12px; letter-spacing: .5px; }
table.dash-table tr:last-child td { border-bottom: none; }
.status-badge { padding: 4px 10px; border-radius: 8px; font-size: 12px; font-weight: 700; }
.status-pending { background: rgba(255,200,0,.15); color: #ffc800; }
.status-paid { background: rgba(0,150,255,.15); color: #4dabff; }
.status-sent, .status-finished { background: rgba(0,255,157,.15); color: var(--green); }
.status-failed, .status-expired { background: rgba(255,80,80,.15); color: #ff6b6b; }
.status-open, .status-created { background: rgba(255,200,0,.15); color: #ffc800; }
.status-answered { background: rgba(0,150,255,.15); color: #4dabff; }
.status-closed { background: rgba(255,255,255,.08); color: var(--muted); }

.support-thread { display: flex; flex-direction: column; gap: 12px; margin-bottom: 20px; }
.support-msg { max-width: 80%; padding: 12px 16px; border-radius: var(--radius-sm); border: 1px solid var(--border); }
.support-msg .meta { font-size: 12px; color: var(--muted); margin-bottom: 4px; }
.support-msg .text { white-space: pre-wrap; word-break: break-word; }
.support-msg.user { align-self: flex-end; background: rgba(168,85,247,.12); }
.support-msg.admin { align-self: flex-start; background: rgba(15,15,20,.75); }
.support-textarea { width: 100%; padding: 12px 16px; border-radius: var(--radius-sm); background: rgba(255,255,255,.03); border: 1px solid var(--border); color: #fff; font-family: inherit; resize: vertical; }

.auth-card {
    max-width: 420px;
    margin: 60px auto;
    background: rgba(15,15,20,.75);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px;
}
.auth-card h1 { font-size: 24px; font-weight: 800; margin-bottom: 6px; text-align: center; }
.auth-card .sub { color: var(--muted); text-align: center; font-size: 14px; margin-bottom: 24px; }
.auth-card .alt-link { text-align: center; margin-top: 16px; font-size: 14px; color: var(--muted); }
.auth-card .alt-link a { color: var(--purple-2); font-weight: 600; text-decoration: none; }
.error-msg { background: rgba(255,80,80,.12); border: 1px solid rgba(255,80,80,.3); color: #ff6b6b; padding: 12px 16px; border-radius: var(--radius-sm); margin-bottom: 16px; font-size: 14px; }
.success-msg { background: rgba(0,255,157,.1); border: 1px solid rgba(0,255,157,.3); color: var(--green); padding: 12px 16px; border-radius: var(--radius-sm); margin-bottom: 16px; font-size: 14px; }
.fee-box { background: rgba(168,85,247,.08); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 12px 16px; margin-bottom: 16px; font-size: 14px; }
.fee-box strong { color: var(--purple-2); }

@media (max-width: 720px) {
    .dash-layout { grid-template-columns: 1fr; }
    .dash-sidebar { position: static; }
    .dash-nav { flex-direction: row; flex-wrap: wrap; }
    .dash-nav a, .dash-logout { width: auto; flex: 1 1 auto; text-align: center; }
}