/* ======== Doggy DEX — Trading Interface v2 ======== */
/* Design overhaul: Amber brand, Outfit font, depth animations */

:root {
    /* Base — deep dramatic blacks */
    --bg-primary: #08090e;
    --bg-secondary: #0e1018;
    --bg-panel: #131620;
    --bg-input: #191d2a;
    --bg-hover: #1e2536;
    --bg-active: #252e42;
    --border: #1f2737;
    --border-hover: #2a3548;

    /* Brand — Amber/Gold (Doggy warmth) */
    --accent: #f59e0b;
    --accent-dark: #d97706;
    --accent-bg: rgba(245, 158, 11, 0.1);
    --accent-glow: rgba(245, 158, 11, 0.15);
    --border-focus: #f59e0b;

    /* Cyan — secondary accent */
    --cyan: #06b6d4;
    --cyan-bg: rgba(6, 182, 212, 0.1);

    /* Text — high contrast */
    --text-primary: #f0f2f5;
    --text-secondary: #9ca3af;
    --text-muted: #5c6370;

    /* Status */
    --green: #10b981;
    --green-bg: rgba(16, 185, 129, 0.12);
    --green-hover: #059669;
    --green-glow: rgba(16, 185, 129, 0.25);
    --red: #ef5350;
    --red-bg: rgba(239, 83, 80, 0.12);
    --red-hover: #dc2626;
    --red-glow: rgba(239, 83, 80, 0.25);

    /* Typography */
    --font-sans: 'Outfit', 'DM Sans', -apple-system, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
    --font-display: 'Space Mono', 'IBM Plex Mono', monospace;

    /* Spacing */
    --radius: 8px;
    --radius-sm: 4px;
    --radius-lg: 12px;
}

/* ======== Reset ======== */

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

body {
    font-family: var(--font-sans);
    font-size: 13px;
    color: var(--text-primary);
    background: var(--bg-primary);
    line-height: 1.5;
    min-height: 100vh;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* ======== Animations ======== */

@keyframes spin {
    to { transform: rotate(360deg); }
}

@keyframes flash-green {
    0% { background-color: transparent; }
    30% { background-color: rgba(16, 185, 129, 0.15); }
    100% { background-color: transparent; }
}

@keyframes flash-red {
    0% { background-color: transparent; }
    30% { background-color: rgba(239, 83, 80, 0.15); }
    100% { background-color: transparent; }
}

@keyframes slide-up {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes pulse-glow {
    0%, 100% { box-shadow: 0 0 0 0 var(--accent-glow); }
    50% { box-shadow: 0 0 0 6px transparent; }
}

@keyframes skeleton {
    0% { background-position: -200px 0; }
    100% { background-position: calc(200px + 100%) 0; }
}

.d-none { display: none !important; }

/* ======== Focus & Accessibility ======== */

button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
a:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

/* ======== Header ======== */

.header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px;
    height: 56px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    gap: 20px;
    position: relative;
}

.header::after {
    content: '';
    position: absolute;
    right: 0;
    top: 0;
    width: 500px;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(245, 158, 11, 0.03));
    pointer-events: none;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 12px;
}

.header-logo {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    box-shadow: 0 0 12px rgba(245, 158, 11, 0.2);
    transition: box-shadow 0.3s, transform 0.3s;
}

.header-logo:hover {
    box-shadow: 0 0 20px rgba(245, 158, 11, 0.4);
    transform: scale(1.05);
}

.header-title {
    font-family: var(--font-display);
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.03em;
}

.header-pair {
    font-family: var(--font-mono);
    font-size: 13px;
    font-weight: 600;
    color: var(--accent);
    background: var(--accent-bg);
    padding: 4px 12px;
    border-radius: 6px;
    border: 1px solid rgba(245, 158, 11, 0.2);
}

/* Pair Selector — hidden in header, shown as bar */

.pair-selector {
    display: none;
}

.pair-btn {
    padding: 6px 14px;
    background: transparent;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    font-family: var(--font-mono);
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.15s;
    white-space: nowrap;
    flex-shrink: 0;
}

.pair-btn:hover {
    color: var(--text-secondary);
    background: var(--bg-hover);
}

.pair-btn.active {
    color: var(--accent);
    background: var(--accent-bg);
    border-color: rgba(245, 158, 11, 0.25);
}

.header-right {
    display: flex;
    align-items: center;
    gap: 24px;
    position: relative;
    z-index: 1;
}

.header-stats {
    display: flex;
    gap: 20px;
}

.stat {
    display: flex;
    flex-direction: column;
    gap: 1px;
}

.stat-label {
    font-size: 10px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    font-weight: 500;
}

.stat-value {
    font-size: 13px;
    font-weight: 600;
    font-family: var(--font-mono);
    color: var(--text-primary);
}

.stat-positive { color: var(--green); }
.stat-negative { color: var(--red); }

.btn-connect {
    padding: 8px 20px;
    background: var(--accent);
    color: #09090f;
    border: none;
    border-radius: var(--radius);
    font-family: var(--font-sans);
    font-size: 13px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    letter-spacing: 0.01em;
}

.btn-connect:hover {
    background: var(--accent-dark);
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(245, 158, 11, 0.25);
}

.btn-connect:active {
    transform: translateY(0);
}

.btn-connect.connected {
    background: var(--bg-input);
    color: var(--accent);
    border: 1px solid rgba(245, 158, 11, 0.3);
    font-family: var(--font-mono);
    font-size: 12px;
}

/* ======== Trading Layout ======== */

.trading-layout {
    display: grid;
    grid-template-columns: 300px 1fr 300px;
    grid-template-rows: 3fr 1fr;
    gap: 6px;
    padding: 6px;
    background: var(--bg-primary);
    height: calc(100vh - 56px - 40px - 32px);
}

.panel {
    background: var(--bg-panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 14px;
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
}

.panel-header h2 {
    font-family: var(--font-sans);
    font-size: 12px;
    font-weight: 700;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

/* ======== Orderbook ======== */

.orderbook-panel {
    grid-row: 1 / 3;
}

.orderbook-toggle,
.chart-timeframes {
    display: flex;
    gap: 3px;
}

.toggle-btn {
    padding: 4px 8px;
    background: transparent;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    font-family: var(--font-sans);
    font-size: 11px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s;
}

.toggle-btn:hover {
    color: var(--text-secondary);
    background: var(--bg-hover);
}

.toggle-btn.active {
    background: var(--accent-bg);
    color: var(--accent);
    border-color: rgba(245, 158, 11, 0.25);
}

.orderbook-header-row,
.trades-header-row,
.orders-header-row {
    display: grid;
    grid-template-columns: 2fr 1.5fr 1.5fr;
    padding: 6px 10px;
    font-size: 10px;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
}

.orders-header-row {
    grid-template-columns: 60px 1fr 1fr 80px 60px;
}

.orderbook-asks,
.orderbook-bids {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
}

.orderbook-asks {
    display: flex;
    flex-direction: column-reverse;
}

.orderbook-row {
    display: grid;
    grid-template-columns: 2fr 1.5fr 1.5fr;
    padding: 4px 10px;
    font-family: var(--font-mono);
    font-size: 11px;
    position: relative;
    cursor: pointer;
    transition: background 0.1s;
    border-radius: 2px;
    line-height: 1.6;
}

.orderbook-row:hover {
    background: var(--bg-hover);
}

.orderbook-row .price {
    font-weight: 600;
}

.orderbook-row.ask .price { color: var(--red); }
.orderbook-row.bid .price { color: var(--green); }

.orderbook-row .size,
.orderbook-row .total {
    text-align: right;
    color: var(--text-secondary);
}

.orderbook-row .depth-bar {
    position: absolute;
    top: 0;
    bottom: 0;
    right: 0;
    opacity: 0.12;
    pointer-events: none;
    transition: opacity 0.2s;
}

.orderbook-row:hover .depth-bar {
    opacity: 0.22;
}

.orderbook-row.ask .depth-bar { background: var(--red); }
.orderbook-row.bid .depth-bar { background: var(--green); }

.orderbook-row.updated { animation: flash-green 0.5s ease-out; }
.orderbook-row.ask.updated { animation: flash-red 0.5s ease-out; }

/* Spread */

.orderbook-spread {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 14px;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    background: var(--bg-secondary);
    flex-shrink: 0;
}

.spread-price {
    font-family: var(--font-mono);
    font-size: 15px;
    font-weight: 700;
    color: var(--accent);
}

.spread-label {
    font-size: 11px;
    color: var(--text-muted);
}

/* ======== Chart ======== */

.chart-panel {
    grid-column: 2;
    grid-row: 1;
}

.chart-area {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    min-height: 300px;
}

/* ======== Order Form ======== */

.order-panel {
    grid-column: 3;
    grid-row: 1;
}

.order-tabs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    flex-shrink: 0;
}

.order-tab {
    padding: 11px;
    border: none;
    font-family: var(--font-sans);
    font-size: 14px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s;
    background: var(--bg-secondary);
    color: var(--text-muted);
    letter-spacing: 0.01em;
}

.order-tab:hover {
    color: var(--text-secondary);
}

.order-tab[data-side="buy"].active {
    background: var(--green-bg);
    color: var(--green);
    box-shadow: inset 0 -2px 0 var(--green);
}

.order-tab[data-side="sell"].active {
    background: var(--red-bg);
    color: var(--red);
    box-shadow: inset 0 -2px 0 var(--red);
}

.order-type-row {
    display: flex;
    gap: 4px;
    padding: 14px 14px 0;
    flex-shrink: 0;
}

.type-btn {
    flex: 1;
    padding: 7px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    font-family: var(--font-sans);
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.15s;
}

.type-btn:hover {
    border-color: var(--border-hover);
    color: var(--text-secondary);
}

.type-btn.active {
    background: var(--accent-bg);
    color: var(--accent);
    border-color: rgba(245, 158, 11, 0.3);
}

.order-form {
    padding: 14px;
    display: flex;
    flex-direction: column;
    gap: 14px;
    flex: 1;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-group label {
    font-size: 12px;
    color: var(--text-muted);
    font-weight: 600;
    letter-spacing: 0.02em;
}

.input-with-unit {
    display: flex;
    align-items: center;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: all 0.2s;
}

.input-with-unit:focus-within {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-bg);
}

.input-with-unit input {
    flex: 1;
    padding: 10px 12px;
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 14px;
    font-weight: 500;
    outline: none;
    min-width: 0;
}

.input-with-unit input::placeholder {
    color: var(--text-muted);
    font-style: italic;
}

.input-unit {
    padding: 10px 12px;
    font-size: 11px;
    color: var(--text-muted);
    font-weight: 700;
    background: rgba(255, 255, 255, 0.03);
    border-left: 1px solid var(--border);
    white-space: nowrap;
    letter-spacing: 0.03em;
    text-transform: uppercase;
}

.amount-shortcuts {
    display: flex;
    gap: 4px;
    margin-top: 2px;
}

.shortcut-btn {
    flex: 1;
    padding: 5px;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    font-family: var(--font-sans);
    font-size: 11px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.15s;
}

.shortcut-btn:hover {
    color: var(--accent);
    border-color: rgba(245, 158, 11, 0.3);
    background: var(--accent-bg);
}

.fee-info {
    display: flex;
    justify-content: space-between;
    font-size: 12px;
    color: var(--text-muted);
    padding: 10px 0;
    border-top: 1px solid var(--border);
}

/* ======== Order Buttons ======== */

.btn-order {
    padding: 13px;
    border: none;
    border-radius: var(--radius);
    font-family: var(--font-sans);
    font-size: 14px;
    font-weight: 800;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    position: relative;
    overflow: hidden;
}

.btn-buy {
    background: var(--green);
    color: #fff;
}

.btn-buy:hover {
    background: var(--green-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px var(--green-glow);
}

.btn-buy:active {
    transform: translateY(0);
    box-shadow: 0 4px 10px var(--green-glow);
}

.btn-sell {
    background: var(--red);
    color: #fff;
}

.btn-sell:hover {
    background: var(--red-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px var(--red-glow);
}

.btn-sell:active {
    transform: translateY(0);
}

.btn-order:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    transform: none !important;
    box-shadow: none !important;
}

.btn-order.loading {
    color: transparent;
    pointer-events: none;
}

.btn-order.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 18px;
    height: 18px;
    margin: -9px 0 0 -9px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
}

/* Balances */

.balances {
    padding: 14px;
    border-top: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    gap: 8px;
    flex-shrink: 0;
}

.balance-row {
    display: flex;
    justify-content: space-between;
    font-size: 12px;
    color: var(--text-secondary);
}

.balance-row span:last-child {
    font-family: var(--font-mono);
    font-weight: 600;
    color: var(--text-primary);
}

/* ======== Recent Trades ======== */

.trades-panel {
    grid-column: 3;
    grid-row: 2;
}

.trades-list {
    flex: 1;
    overflow-y: auto;
}

.trade-row {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    padding: 5px 14px;
    font-family: var(--font-mono);
    font-size: 12px;
    transition: background 0.1s;
}

.trade-row:hover { background: var(--bg-hover); }
.trade-row.buy .trade-price { color: var(--green); }
.trade-row.sell .trade-price { color: var(--red); }
.trade-row .trade-size { text-align: right; color: var(--text-secondary); }
.trade-row .trade-time { text-align: right; color: var(--text-muted); }

/* ======== Open Orders ======== */

.orders-panel {
    grid-column: 1 / 3;
    grid-row: 2;
}

.orders-list { flex: 1; overflow-y: auto; }

.order-row {
    display: grid;
    grid-template-columns: 60px 1fr 1fr 80px 60px;
    padding: 8px 14px;
    font-family: var(--font-mono);
    font-size: 12px;
    align-items: center;
    border-bottom: 1px solid var(--border);
    transition: background 0.1s;
}

.order-row:hover { background: var(--bg-hover); }
.order-side-buy { color: var(--green); font-weight: 700; }
.order-side-sell { color: var(--red); font-weight: 700; }

.btn-cancel {
    padding: 4px 10px;
    background: transparent;
    border: 1px solid rgba(239, 83, 80, 0.3);
    border-radius: var(--radius-sm);
    color: var(--red);
    font-family: var(--font-sans);
    font-size: 11px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.15s;
}

.btn-cancel:hover {
    background: var(--red-bg);
    border-color: var(--red);
}

.btn-cancel-all {
    padding: 4px 12px;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    font-family: var(--font-sans);
    font-size: 11px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.15s;
}

.btn-cancel-all:hover {
    border-color: var(--red);
    color: var(--red);
}

.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px 24px;
    color: var(--text-muted);
    font-size: 13px;
    gap: 8px;
}

.empty-state::before {
    content: '📭';
    font-size: 32px;
    opacity: 0.5;
}

/* ======== Toast Notifications ======== */

.toast {
    position: fixed;
    bottom: 24px;
    right: 24px;
    padding: 12px 18px;
    border-radius: var(--radius);
    font-size: 13px;
    font-weight: 600;
    z-index: 1000;
    animation: slide-up 0.3s ease-out;
    backdrop-filter: blur(12px);
}

.toast-success {
    background: rgba(16, 185, 129, 0.15);
    color: var(--green);
    border: 1px solid rgba(16, 185, 129, 0.3);
}

.toast-error {
    background: rgba(239, 83, 80, 0.15);
    color: var(--red);
    border: 1px solid rgba(239, 83, 80, 0.3);
}

.toast-info {
    background: var(--accent-bg);
    color: var(--accent);
    border: 1px solid rgba(245, 158, 11, 0.3);
}

/* ======== Loading Skeleton ======== */

.skeleton {
    background: linear-gradient(90deg, var(--bg-input) 0%, var(--bg-hover) 50%, var(--bg-input) 100%);
    background-size: 200px 100%;
    animation: skeleton 1.5s infinite;
    border-radius: var(--radius-sm);
}

/* ======== Footer ======== */

.footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    font-size: 11px;
    color: var(--text-muted);
    height: 32px;
}

.footer-links {
    display: flex;
    gap: 16px;
}

.footer-links a {
    color: var(--text-muted);
    text-decoration: none;
    transition: color 0.2s;
}

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

/* ======== Scrollbar ======== */

::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* ======== Responsive ======== */

@media (max-width: 1200px) {
    .header-stats { gap: 12px; }
    .stat-label { display: none; }
    .trading-layout { grid-template-columns: 240px 1fr 280px; }
}

/* Pair selector bar — always visible below header */
.pair-selector-mobile {
    display: flex;
    gap: 6px;
    padding: 10px 16px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    /* Fade hint for scroll */
    mask-image: linear-gradient(90deg, #000 85%, transparent);
    -webkit-mask-image: linear-gradient(90deg, #000 85%, transparent);
}

.pair-selector-mobile::-webkit-scrollbar {
    display: none;
}

.pair-selector-mobile .pair-btn {
    padding: 8px 16px;
    font-size: 13px;
    min-height: 36px;
}

@media (max-width: 900px) {
    .header-stats { display: none; }
    .header-pair { display: none; }

    .pair-selector-mobile {
        padding: 10px 12px;
    }

    .header {
        padding: 0 12px;
        height: 52px;
    }

    .header-title {
        font-size: 16px;
    }

    .header-logo {
        width: 28px;
        height: 28px;
    }

    .btn-connect {
        padding: 6px 14px;
        font-size: 12px;
    }

    .trading-layout {
        grid-template-columns: 1fr;
        grid-template-rows: auto;
        height: auto;
        padding: 4px;
        gap: 6px;
    }

    .orderbook-panel,
    .chart-panel,
    .order-panel,
    .trades-panel,
    .orders-panel {
        grid-column: 1;
        grid-row: auto;
        max-height: 380px;
        border-radius: var(--radius);
    }

    /* Reorder panels for mobile: Chart → Orderbook → Form → Trades → Orders */
    .chart-panel { order: 1; }
    .orderbook-panel { order: 2; max-height: 400px; }
    .order-panel { order: 3; max-height: none; }
    .trades-panel { order: 4; max-height: 280px; }
    .orders-panel { order: 5; max-height: 250px; }

    .orderbook-row,
    .trade-row {
        padding: 10px 12px;
        min-height: 40px;
        align-items: center;
    }

    .panel-header {
        padding: 12px 14px;
    }

    .panel-header h2 {
        font-size: 13px;
    }

    /* Bigger inputs on mobile */
    .input-with-unit input {
        padding: 12px 14px;
        font-size: 16px; /* Prevents iOS zoom */
    }

    .btn-order {
        padding: 16px;
        font-size: 16px;
    }

    .shortcut-btn {
        padding: 8px;
        font-size: 12px;
        min-height: 36px;
    }

    .order-tab {
        padding: 12px;
        font-size: 15px;
    }

    .type-btn {
        padding: 10px;
        font-size: 13px;
    }

    body { font-size: 14px; }
}

@media (max-width: 480px) {
    .header-title { font-size: 16px; }

    .btn-connect {
        padding: 6px 12px;
        font-size: 12px;
    }

    .order-form { gap: 10px; padding: 10px; }
}