/* CryptoExchange - Binance-Style Theme */
:root {
    --bg-primary: #0b0e11;
    --bg-secondary: #1e2329;
    --bg-tertiary: #2b3139;
    --bg-hover: #363c45;
    --bg-card: #181a20;
    --text-primary: #eaecef;
    --text-secondary: #b7bdc6;
    --text-muted: #848e9c;
    --text-dark: #474d57;
    --accent: #fcd535;
    --accent-hover: #e5c22e;
    --green: #0ecb81;
    --green-bg: #0ecb8115;
    --red: #f6465d;
    --red-bg: #f6465d15;
    --blue: #1e9af5;
    --border: #2b3139;
    --border-light: #363c45;
    --radius: 4px;
    --radius-lg: 8px;
    --shadow: 0 2px 8px rgba(0,0,0,0.3);
    --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-mono: 'SF Mono', 'Fira Code', 'Fira Mono', Menlo, Consolas, monospace;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { font-size: 14px; }
body { font-family: var(--font); background: var(--bg-primary); color: var(--text-primary); line-height: 1.5; min-height: 100vh; }
a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); }

/* ========== HEADER/NAV ========== */
.header { background: var(--bg-card); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 1000; }
.header-inner { max-width: 1400px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; padding: 0 16px; height: 56px; }
.logo-link { display: flex; align-items: center; gap: 8px; font-size: 18px; font-weight: 700; color: var(--accent); }
.logo-link img { height: 24px; }

.nav { display: flex; align-items: center; gap: 4px; }
.nav a, .nav-item { color: var(--text-secondary); padding: 8px 12px; font-size: 14px; font-weight: 500; border-radius: var(--radius); transition: all 0.15s; cursor: pointer; position: relative; white-space: nowrap; }
.nav a:hover, .nav-item:hover { color: var(--text-primary); background: var(--bg-tertiary); }
.nav a.active { color: var(--accent); }

.nav-dropdown { position: relative; }
.nav-dropdown-menu { display: none; position: absolute; top: 100%; left: 0; background: var(--bg-secondary); border: 1px solid var(--border); border-radius: var(--radius-lg); min-width: 200px; padding: 8px; box-shadow: var(--shadow); z-index: 100; }
.nav-dropdown:hover .nav-dropdown-menu { display: block; }
.nav-dropdown-menu a { display: block; padding: 10px 12px; color: var(--text-secondary); border-radius: var(--radius); }
.nav-dropdown-menu a:hover { background: var(--bg-tertiary); color: var(--text-primary); }

.header-right { display: flex; align-items: center; gap: 8px; }
.btn { display: inline-flex; align-items: center; justify-content: center; padding: 8px 16px; border-radius: var(--radius); font-size: 14px; font-weight: 500; border: none; cursor: pointer; transition: all 0.15s; }
.btn-primary { background: var(--accent); color: #0b0e11; }
.btn-primary:hover { background: var(--accent-hover); }
.btn-secondary { background: var(--bg-tertiary); color: var(--text-primary); }
.btn-secondary:hover { background: var(--bg-hover); }
.btn-green { background: var(--green); color: #fff; }
.btn-green:hover { background: #0db773; }
.btn-red { background: var(--red); color: #fff; }
.btn-red:hover { background: #e03e53; }
.btn-outline { border: 1px solid var(--border-light); background: transparent; color: var(--text-primary); }
.btn-sm { padding: 4px 12px; font-size: 12px; }
.btn-lg { padding: 12px 24px; font-size: 16px; }
.btn-block { width: 100%; }

/* ========== TRADING LAYOUT ========== */
.trading-layout { display: grid; grid-template-columns: 240px 1fr 300px; grid-template-rows: auto 1fr auto; gap: 1px; background: var(--border); min-height: calc(100vh - 56px); }

.market-list-panel { background: var(--bg-card); grid-row: 1 / -1; overflow-y: auto; max-height: calc(100vh - 56px); }
.chart-panel { background: var(--bg-card); }
.order-panel { background: var(--bg-card); grid-row: 1 / -1; overflow-y: auto; max-height: calc(100vh - 56px); }
.orderbook-panel { background: var(--bg-card); }
.bottom-panel { background: var(--bg-card); grid-column: 2 / 3; }
.market-info-bar { background: var(--bg-card); grid-column: 2 / 3; padding: 8px 16px; display: flex; align-items: center; gap: 24px; border-bottom: 1px solid var(--border); flex-wrap: wrap; }

/* Mobile Trading */
@media (max-width: 1024px) {
    .trading-layout { grid-template-columns: 1fr; grid-template-rows: auto; }
    .market-list-panel { display: none; }
    .order-panel { max-height: none; }
}

/* ========== MARKET INFO BAR ========== */
.market-price { font-size: 20px; font-weight: 700; }
.market-price.up { color: var(--green); }
.market-price.down { color: var(--red); }
.market-stat { display: flex; flex-direction: column; }
.market-stat-label { font-size: 11px; color: var(--text-muted); }
.market-stat-value { font-size: 13px; color: var(--text-secondary); }
.market-stat-value.up { color: var(--green); }
.market-stat-value.down { color: var(--red); }

/* ========== MARKET LIST ========== */
.market-search { padding: 12px; }
.market-search input { width: 100%; padding: 8px 12px; background: var(--bg-tertiary); border: 1px solid var(--border); border-radius: var(--radius); color: var(--text-primary); font-size: 12px; outline: none; }
.market-search input:focus { border-color: var(--accent); }

.market-tabs { display: flex; padding: 0 12px; border-bottom: 1px solid var(--border); }
.market-tab { padding: 8px 12px; font-size: 12px; color: var(--text-muted); cursor: pointer; border-bottom: 2px solid transparent; }
.market-tab.active { color: var(--accent); border-color: var(--accent); }

.market-item { display: grid; grid-template-columns: 1fr auto auto; align-items: center; padding: 8px 12px; cursor: pointer; font-size: 12px; }
.market-item:hover { background: var(--bg-tertiary); }
.market-item.active { background: var(--bg-tertiary); }
.market-item-name { font-weight: 500; }
.market-item-name span { color: var(--text-muted); font-weight: 400; }
.market-item-price { text-align: right; font-family: var(--font-mono); }
.market-item-change { text-align: right; padding: 2px 6px; border-radius: 2px; font-size: 11px; font-family: var(--font-mono); }
.market-item-change.up { color: var(--green); background: var(--green-bg); }
.market-item-change.down { color: var(--red); background: var(--red-bg); }

/* ========== ORDER BOOK ========== */
.orderbook { padding: 0; }
.orderbook-header { display: flex; justify-content: space-between; align-items: center; padding: 12px; border-bottom: 1px solid var(--border); }
.orderbook-header h3 { font-size: 14px; font-weight: 600; }
.orderbook-tabs { display: flex; gap: 4px; }
.orderbook-tab { width: 20px; height: 20px; border-radius: 2px; cursor: pointer; border: none; display: flex; align-items: center; justify-content: center; }

.orderbook-cols { display: grid; grid-template-columns: 1fr 1fr 1fr; padding: 4px 12px; font-size: 11px; color: var(--text-muted); }
.orderbook-row { display: grid; grid-template-columns: 1fr 1fr 1fr; padding: 2px 12px; font-size: 12px; font-family: var(--font-mono); position: relative; cursor: pointer; }
.orderbook-row:hover { background: var(--bg-tertiary); }
.orderbook-row .bar { position: absolute; right: 0; top: 0; bottom: 0; opacity: 0.1; }
.orderbook-row.sell .bar { background: var(--red); }
.orderbook-row.buy .bar { background: var(--green); }
.orderbook-row.sell .price { color: var(--red); }
.orderbook-row.buy .price { color: var(--green); }
.orderbook-spread { padding: 6px 12px; text-align: center; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); font-size: 14px; font-weight: 600; }

/* ========== ORDER FORM ========== */
.order-form { padding: 16px; }
.order-form-tabs { display: flex; margin-bottom: 16px; border-radius: var(--radius); overflow: hidden; }
.order-form-tab { flex: 1; padding: 10px; text-align: center; font-weight: 600; font-size: 14px; cursor: pointer; border: none; }
.order-form-tab.buy { background: var(--bg-tertiary); color: var(--text-muted); }
.order-form-tab.buy.active { background: var(--green); color: #fff; }
.order-form-tab.sell { background: var(--bg-tertiary); color: var(--text-muted); }
.order-form-tab.sell.active { background: var(--red); color: #fff; }

.order-type-tabs { display: flex; gap: 16px; margin-bottom: 16px; }
.order-type-tab { font-size: 13px; color: var(--text-muted); cursor: pointer; padding-bottom: 4px; border-bottom: 2px solid transparent; }
.order-type-tab.active { color: var(--text-primary); border-color: var(--accent); }

.form-field { margin-bottom: 12px; }
.form-field label { display: block; font-size: 12px; color: var(--text-muted); margin-bottom: 4px; }
.form-input { display: flex; align-items: center; background: var(--bg-tertiary); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.form-input input { flex: 1; background: transparent; border: none; padding: 10px 12px; color: var(--text-primary); font-size: 14px; font-family: var(--font-mono); outline: none; }
.form-input .suffix { padding: 0 12px; color: var(--text-muted); font-size: 12px; white-space: nowrap; }
.form-input:focus-within { border-color: var(--accent); }

.slider-container { margin: 12px 0; }
.slider { width: 100%; height: 4px; -webkit-appearance: none; background: var(--bg-tertiary); border-radius: 2px; outline: none; }
.slider::-webkit-slider-thumb { -webkit-appearance: none; width: 14px; height: 14px; background: var(--accent); border-radius: 50%; cursor: pointer; }

.order-summary { background: var(--bg-tertiary); border-radius: var(--radius); padding: 12px; margin: 12px 0; font-size: 12px; }
.order-summary-row { display: flex; justify-content: space-between; margin-bottom: 4px; }
.order-summary-row:last-child { margin-bottom: 0; }
.order-summary-label { color: var(--text-muted); }

/* ========== BOTTOM TABS (Open Orders, History, etc.) ========== */
.bottom-tabs { display: flex; border-bottom: 1px solid var(--border); padding: 0 16px; }
.bottom-tab { padding: 12px 16px; font-size: 13px; color: var(--text-muted); cursor: pointer; border-bottom: 2px solid transparent; white-space: nowrap; }
.bottom-tab.active { color: var(--text-primary); border-color: var(--accent); }
.bottom-tab .count { background: var(--accent); color: #0b0e11; font-size: 10px; padding: 1px 5px; border-radius: 10px; margin-left: 4px; }

.orders-table { width: 100%; border-collapse: collapse; }
.orders-table th { text-align: left; padding: 8px 12px; font-size: 11px; color: var(--text-muted); font-weight: 500; border-bottom: 1px solid var(--border); white-space: nowrap; }
.orders-table td { padding: 8px 12px; font-size: 12px; border-bottom: 1px solid var(--border); font-family: var(--font-mono); white-space: nowrap; }
.orders-table tr:hover { background: var(--bg-tertiary); }

/* ========== WALLET PAGE ========== */
.wallet-layout { max-width: 1200px; margin: 0 auto; padding: 24px 16px; }
.wallet-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 24px; flex-wrap: wrap; gap: 16px; }
.wallet-balance { font-size: 28px; font-weight: 700; }
.wallet-balance-label { font-size: 14px; color: var(--text-muted); margin-bottom: 4px; }

.wallet-actions { display: flex; gap: 8px; }

.wallet-grid { display: grid; gap: 1px; background: var(--border); border-radius: var(--radius-lg); overflow: hidden; }
.wallet-coin { display: grid; grid-template-columns: 200px 1fr 1fr 1fr 200px; align-items: center; padding: 16px 20px; background: var(--bg-card); gap: 16px; }
.wallet-coin:hover { background: var(--bg-secondary); }

.coin-info { display: flex; align-items: center; gap: 12px; }
.coin-icon { width: 32px; height: 32px; border-radius: 50%; }
.coin-name { font-weight: 600; }
.coin-symbol { color: var(--text-muted); font-size: 12px; }

.coin-balance { font-family: var(--font-mono); }
.coin-balance-usd { color: var(--text-muted); font-size: 12px; }
.coin-price { font-family: var(--font-mono); }
.coin-address { font-family: var(--font-mono); font-size: 11px; color: var(--text-muted); word-break: break-all; }

.coin-actions { display: flex; gap: 8px; justify-content: flex-end; }

@media (max-width: 768px) {
    .wallet-coin { grid-template-columns: 1fr; gap: 8px; }
    .coin-actions { justify-content: flex-start; }
}

/* ========== AUTH PAGES ========== */
.auth-page { display: flex; align-items: center; justify-content: center; min-height: calc(100vh - 56px); padding: 20px; }
.auth-card { background: var(--bg-secondary); border-radius: var(--radius-lg); padding: 40px; max-width: 420px; width: 100%; }
.auth-card h2 { font-size: 22px; margin-bottom: 24px; }
.auth-card .form-group { margin-bottom: 16px; }
.auth-card .form-group label { display: block; font-size: 13px; color: var(--text-muted); margin-bottom: 6px; }
.auth-card .form-group input { width: 100%; padding: 12px; background: var(--bg-tertiary); border: 1px solid var(--border); border-radius: var(--radius); color: var(--text-primary); font-size: 14px; outline: none; }
.auth-card .form-group input:focus { border-color: var(--accent); }
.auth-divider { display: flex; align-items: center; gap: 12px; margin: 20px 0; color: var(--text-muted); font-size: 13px; }
.auth-divider::before, .auth-divider::after { content: ''; flex: 1; height: 1px; background: var(--border); }
.btn-google { width: 100%; padding: 12px; background: #fff; color: #333; border: none; border-radius: var(--radius); font-size: 14px; font-weight: 500; cursor: pointer; display: flex; align-items: center; justify-content: center; gap: 8px; }
.btn-google:hover { background: #f0f0f0; }
.auth-footer { text-align: center; margin-top: 20px; font-size: 13px; color: var(--text-muted); }
.auth-footer a { color: var(--accent); }

/* ========== ADMIN ========== */
.admin-layout { display: grid; grid-template-columns: 240px 1fr; min-height: calc(100vh - 56px); }
.admin-sidebar { background: var(--bg-card); border-right: 1px solid var(--border); padding: 16px 0; }
.admin-sidebar a { display: block; padding: 10px 20px; color: var(--text-secondary); font-size: 13px; }
.admin-sidebar a:hover { background: var(--bg-tertiary); color: var(--text-primary); }
.admin-sidebar a.active { color: var(--accent); border-right: 2px solid var(--accent); }
.admin-content { padding: 24px; overflow-y: auto; }
.admin-content h2 { margin-bottom: 24px; font-size: 20px; }

.card { background: var(--bg-secondary); border-radius: var(--radius-lg); padding: 20px; margin-bottom: 16px; }
.card-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; }
.card-header h3 { font-size: 16px; }

.stats-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 16px; margin-bottom: 24px; }
.stat-card { background: var(--bg-secondary); border-radius: var(--radius-lg); padding: 20px; }
.stat-card-label { font-size: 12px; color: var(--text-muted); margin-bottom: 4px; }
.stat-card-value { font-size: 24px; font-weight: 700; }
.stat-card-change { font-size: 12px; margin-top: 4px; }

/* ========== DATA TABLE ========== */
.data-table { width: 100%; border-collapse: collapse; }
.data-table th { text-align: left; padding: 12px; font-size: 12px; color: var(--text-muted); font-weight: 500; border-bottom: 1px solid var(--border); }
.data-table td { padding: 12px; font-size: 13px; border-bottom: 1px solid var(--border); }
.data-table tr:hover { background: var(--bg-tertiary); }

/* ========== FORM ELEMENTS ========== */
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 13px; color: var(--text-muted); margin-bottom: 6px; }
.form-control { width: 100%; padding: 10px 12px; background: var(--bg-tertiary); border: 1px solid var(--border); border-radius: var(--radius); color: var(--text-primary); font-size: 14px; outline: none; }
.form-control:focus { border-color: var(--accent); }
select.form-control { appearance: none; cursor: pointer; }
textarea.form-control { resize: vertical; min-height: 80px; }

.toggle { display: flex; align-items: center; gap: 8px; cursor: pointer; }
.toggle input { display: none; }
.toggle-slider { width: 40px; height: 22px; background: var(--bg-tertiary); border-radius: 11px; position: relative; transition: 0.2s; }
.toggle-slider::after { content: ''; width: 18px; height: 18px; background: var(--text-muted); border-radius: 50%; position: absolute; top: 2px; left: 2px; transition: 0.2s; }
.toggle input:checked + .toggle-slider { background: var(--accent); }
.toggle input:checked + .toggle-slider::after { left: 20px; background: #0b0e11; }

.badge { display: inline-block; padding: 2px 8px; border-radius: 10px; font-size: 11px; font-weight: 500; }
.badge-green { background: var(--green-bg); color: var(--green); }
.badge-red { background: var(--red-bg); color: var(--red); }
.badge-yellow { background: #fcd53520; color: var(--accent); }
.badge-blue { background: #1e9af520; color: var(--blue); }

.alert { padding: 12px 16px; border-radius: var(--radius); margin-bottom: 16px; font-size: 13px; }
.alert-success { background: var(--green-bg); border: 1px solid var(--green); color: var(--green); }
.alert-error { background: var(--red-bg); border: 1px solid var(--red); color: var(--red); }
.alert-warning { background: #fcd53520; border: 1px solid var(--accent); color: var(--accent); }
.alert-info { background: #1e9af520; border: 1px solid var(--blue); color: var(--blue); }

/* ========== MOBILE NAV ========== */
.mobile-menu-btn { display: none; background: none; border: none; color: var(--text-primary); font-size: 24px; cursor: pointer; padding: 8px; }

@media (max-width: 768px) {
    .mobile-menu-btn { display: block; }
    .nav { display: none; position: fixed; top: 56px; left: 0; right: 0; bottom: 0; background: var(--bg-card); flex-direction: column; padding: 16px; z-index: 999; overflow-y: auto; }
    .nav.open { display: flex; }
    .nav a, .nav-item { padding: 12px; font-size: 16px; }
    .header-right { gap: 4px; }
    .admin-layout { grid-template-columns: 1fr; }
    .admin-sidebar { display: none; }
    .market-info-bar { gap: 12px; }
    .market-info-bar > * { min-width: auto; }
}

/* ========== SCROLLBAR ========== */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: var(--bg-hover); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-dark); }

/* ========== MISC ========== */
.text-green { color: var(--green); }
.text-red { color: var(--red); }
.text-muted { color: var(--text-muted); }
.text-center { text-align: center; }
.text-right { text-align: right; }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.p-2 { padding: 16px; }
.flex { display: flex; }
.flex-between { display: flex; justify-content: space-between; align-items: center; }
.gap-1 { gap: 8px; }
.gap-2 { gap: 16px; }
.w-full { width: 100%; }
.overflow-x { overflow-x: auto; }
.hidden { display: none; }
.mono { font-family: var(--font-mono); }

/* ========== LOADING ========== */
.spinner { width: 24px; height: 24px; border: 3px solid var(--border); border-top-color: var(--accent); border-radius: 50%; animation: spin 0.6s linear infinite; display: inline-block; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ========== MODAL ========== */
.modal-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.7); display: flex; align-items: center; justify-content: center; z-index: 2000; }
.modal { background: var(--bg-secondary); border-radius: var(--radius-lg); padding: 24px; max-width: 480px; width: 90%; max-height: 90vh; overflow-y: auto; }
.modal-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; }
.modal-close { background: none; border: none; color: var(--text-muted); font-size: 20px; cursor: pointer; }

/* ========== QR CODE ========== */
.qr-container { background: #fff; padding: 16px; border-radius: var(--radius-lg); display: inline-block; margin: 16px 0; }

/* ========== LEVERAGE SELECTOR ========== */
.leverage-selector { display: flex; gap: 4px; flex-wrap: wrap; }
.leverage-btn { padding: 6px 12px; background: var(--bg-tertiary); border: 1px solid var(--border); border-radius: var(--radius); color: var(--text-secondary); font-size: 12px; cursor: pointer; }
.leverage-btn.active { background: var(--accent); color: #0b0e11; border-color: var(--accent); }

/* ========== STAKING CARDS ========== */
.staking-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 16px; }
.staking-card { background: var(--bg-secondary); border-radius: var(--radius-lg); padding: 24px; border: 1px solid var(--border); }
.staking-card:hover { border-color: var(--accent); }
.staking-card-header { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
.staking-card-header img { width: 36px; height: 36px; border-radius: 50%; }
.staking-apr { font-size: 28px; font-weight: 700; color: var(--green); margin-bottom: 16px; }
.staking-detail { display: flex; justify-content: space-between; padding: 8px 0; border-bottom: 1px solid var(--border); font-size: 13px; }
.staking-detail:last-child { border-bottom: none; }

/* ========== P2P ========== */
.p2p-offer { background: var(--bg-secondary); border-radius: var(--radius-lg); padding: 20px; margin-bottom: 12px; display: grid; grid-template-columns: 200px 1fr 1fr 150px; align-items: center; gap: 16px; }
.p2p-offer:hover { background: var(--bg-card); }
.p2p-seller-info { display: flex; align-items: center; gap: 8px; }
.p2p-seller-rating { color: var(--accent); font-size: 13px; }
.p2p-payment-methods { display: flex; gap: 4px; flex-wrap: wrap; }
.p2p-payment-tag { padding: 2px 8px; background: var(--bg-tertiary); border-radius: var(--radius); font-size: 11px; }

@media (max-width: 768px) {
    .p2p-offer { grid-template-columns: 1fr; }
}

/* ========== CHAT ========== */
.chat-container { max-height: 400px; overflow-y: auto; padding: 16px; }
.chat-msg { margin-bottom: 12px; max-width: 80%; }
.chat-msg.mine { margin-left: auto; }
.chat-msg-bubble { padding: 10px 14px; border-radius: 12px; font-size: 13px; }
.chat-msg.mine .chat-msg-bubble { background: var(--accent); color: #0b0e11; border-bottom-right-radius: 4px; }
.chat-msg.theirs .chat-msg-bubble { background: var(--bg-tertiary); border-bottom-left-radius: 4px; }
.chat-msg-time { font-size: 11px; color: var(--text-muted); margin-top: 4px; }
.chat-input { display: flex; gap: 8px; padding: 12px 16px; border-top: 1px solid var(--border); }
.chat-input input { flex: 1; }

/* ========== COPY TRADING ========== */
.copy-trade-card { background: var(--bg-secondary); border-radius: var(--radius-lg); padding: 16px; margin-bottom: 8px; }
.copy-trade-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; }
.copy-trade-profit { font-size: 18px; font-weight: 700; }