:root {
    --bg: #0b0e11;
    --bg2: #12161c;
    --bg3: #1b2028;
    --bg4: #242830;
    --border: #2b3139;
    --text: #eaecef;
    --text2: #848e9c;
    --text3: #5e6673;
    --green: #0ecb81;
    --green-bg: rgba(14,203,129,0.1);
    --red: #f6465d;
    --red-bg: rgba(246,70,93,0.1);
    --blue: #1e80ff;
    --blue-bg: rgba(30,128,255,0.1);
    --yellow: #fcd535;
    --yellow-bg: rgba(252,213,53,0.1);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    font-size: 14px;
}

/* ===== LOGIN ===== */
.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    background: radial-gradient(ellipse at 50% 0%, #1a2332 0%, var(--bg) 70%);
}

.login-container {
    background: var(--bg2);
    padding: 3rem;
    border-radius: 16px;
    border: 1px solid var(--border);
    text-align: center;
    width: 380px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}

.login-container h1 {
    font-size: 2.2rem;
    margin-bottom: 0.25rem;
    background: linear-gradient(135deg, var(--yellow), var(--green));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: 800;
    letter-spacing: -0.5px;
}

.subtitle { color: var(--text2); margin-bottom: 2rem; font-size: 0.9rem; }

input, select, textarea {
    width: 100%;
    padding: 0.7rem 1rem;
    background: var(--bg3);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text);
    font-size: 0.9rem;
    margin-bottom: 0.75rem;
    transition: border-color 0.2s;
}

input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--yellow);
}

button, .btn {
    padding: 0.65rem 1.25rem;
    background: var(--yellow);
    color: #0b0e11;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 600;
    width: 100%;
    transition: all 0.15s;
}

button:hover, .btn:hover { filter: brightness(1.1); }
button:active { transform: scale(0.98); }
.btn-green { background: var(--green); color: #fff; }
.btn-red { background: var(--red); color: #fff; }
.btn-blue { background: var(--blue); color: #fff; }
.btn-outline { background: transparent; border: 1px solid var(--border); color: var(--text); }
.btn-outline:hover { border-color: var(--text2); }
.btn-small { padding: 0.35rem 0.75rem; width: auto; font-size: 0.8rem; border-radius: 6px; }
.btn-icon { width: auto; padding: 0.4rem; background: transparent; color: var(--text2); font-size: 1.1rem; }
.btn-icon:hover { color: var(--text); }
button:disabled { opacity: 0.4; cursor: not-allowed; }

.error { color: var(--red); margin-top: 0.75rem; font-size: 0.85rem; }
.hidden { display: none !important; }

/* ===== APP LAYOUT ===== */
.app {
    display: grid;
    grid-template-rows: auto 1fr;
    grid-template-columns: 1fr;
    min-height: 100vh;
}

/* ===== TOP BAR ===== */
.topbar {
    background: var(--bg2);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    padding: 0 1.5rem;
    height: 52px;
    gap: 1.5rem;
    overflow-x: auto;
}

.topbar-logo {
    font-size: 1.1rem;
    font-weight: 800;
    color: var(--yellow);
    white-space: nowrap;
    letter-spacing: -0.3px;
}

.topbar-nav {
    display: flex;
    gap: 0.25rem;
    margin-left: 1rem;
}

.topbar-nav a {
    padding: 0.5rem 1rem;
    color: var(--text2);
    text-decoration: none;
    border-radius: 6px;
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s;
    white-space: nowrap;
}

.topbar-nav a:hover { color: var(--text); }
.topbar-nav a.active { color: var(--text); background: var(--bg3); }

.topbar-ticker {
    display: flex;
    gap: 1.25rem;
    margin-left: auto;
    align-items: center;
    font-size: 0.8rem;
    white-space: nowrap;
}

.ticker-item {
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.ticker-item .t-symbol { color: var(--text2); font-weight: 500; }
.ticker-item .t-price { color: var(--text); font-weight: 600; font-family: 'SF Mono', 'Fira Code', monospace; }
.ticker-item .t-change { font-weight: 600; font-size: 0.75rem; padding: 0.15rem 0.4rem; border-radius: 4px; }
.ticker-item .t-change.up { color: var(--green); background: var(--green-bg); }
.ticker-item .t-change.down { color: var(--red); background: var(--red-bg); }

.topbar-user {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-left: 1rem;
    padding-left: 1rem;
    border-left: 1px solid var(--border);
    white-space: nowrap;
}

.user-avatar {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: var(--bg4);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.75rem;
    color: var(--yellow);
}

.topbar-user span { font-size: 0.85rem; color: var(--text2); }
.topbar-user a { font-size: 0.8rem; color: var(--text3); text-decoration: none; cursor: pointer; }
.topbar-user a:hover { color: var(--red); }

/* ===== MAIN CONTENT ===== */
.main-content {
    padding: 1.5rem;
    overflow-y: auto;
    max-width: 1600px;
    width: 100%;
    margin: 0 auto;
}

/* ===== STATS GRID ===== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.stat-card {
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 1rem 1.25rem;
}

.stat-card .label {
    color: var(--text2);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 0.4rem;
}

.stat-card .value {
    font-size: 1.35rem;
    font-weight: 700;
    font-family: 'SF Mono', 'Fira Code', monospace;
}

.stat-card .value.positive { color: var(--green); }
.stat-card .value.negative { color: var(--red); }
.stat-card .sub { font-size: 0.75rem; color: var(--text2); margin-top: 0.2rem; }

/* ===== MARKET PAGE ===== */
.market-layout {
    display: grid;
    grid-template-columns: 1fr 280px;
    gap: 1rem;
}

.market-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 0.75rem;
    flex-wrap: wrap;
}

.market-header select {
    width: auto;
    margin-bottom: 0;
    background: var(--bg3);
    font-weight: 600;
    font-size: 1rem;
    padding: 0.5rem 0.75rem;
}

.market-pair-info {
    display: flex;
    align-items: center;
    gap: 2rem;
    flex: 1;
}

.pair-stat {
    display: flex;
    flex-direction: column;
}

.pair-stat .ps-label { font-size: 0.7rem; color: var(--text3); text-transform: uppercase; }
.pair-stat .ps-value { font-size: 0.9rem; font-weight: 600; font-family: 'SF Mono', 'Fira Code', monospace; }

.market-price-big {
    font-size: 1.8rem;
    font-weight: 700;
    font-family: 'SF Mono', 'Fira Code', monospace;
}

/* Interval bar */
.interval-bar {
    display: flex;
    gap: 2px;
    margin-bottom: 0.75rem;
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 3px;
    width: fit-content;
}

.interval-btn {
    padding: 0.3rem 0.6rem;
    background: transparent;
    border: none;
    border-radius: 5px;
    color: var(--text2);
    font-size: 0.78rem;
    font-weight: 500;
    cursor: pointer;
    width: auto;
    transition: all 0.1s;
}

.interval-btn:hover { color: var(--text); background: var(--bg4); }
.interval-btn.active { background: var(--yellow); color: #0b0e11; font-weight: 700; }

/* Chart */
.chart-container {
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: 10px;
    overflow: hidden;
}

.chart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border);
}

.chart-header h3 { font-size: 0.9rem; font-weight: 600; }

/* Order book */
.orderbook {
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: 10px;
    overflow: hidden;
}

.orderbook-header {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border);
    font-size: 0.85rem;
    font-weight: 600;
}

.orderbook-table {
    font-family: 'SF Mono', 'Fira Code', monospace;
    font-size: 0.78rem;
}

.orderbook-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    padding: 0.2rem 0.75rem;
    position: relative;
}

.orderbook-row.header {
    color: var(--text3);
    font-size: 0.7rem;
    text-transform: uppercase;
    padding: 0.4rem 0.75rem;
    border-bottom: 1px solid var(--border);
}

.ob-price { font-weight: 500; }
.ob-qty { text-align: right; color: var(--text2); }
.ob-ask .ob-price { color: var(--red); }
.ob-bid .ob-price { color: var(--green); }

.ob-ask { background: linear-gradient(to left, var(--red-bg), transparent); }
.ob-bid { background: linear-gradient(to left, var(--green-bg), transparent); }

.ob-spread {
    text-align: center;
    padding: 0.4rem;
    color: var(--text2);
    font-size: 0.75rem;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    font-family: 'SF Mono', 'Fira Code', monospace;
}

/* Market watchlist */
.watchlist {
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: 10px;
    margin-top: 0.75rem;
    overflow: hidden;
}

.watchlist-header {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border);
    font-size: 0.85rem;
    font-weight: 600;
}

.watchlist-item {
    display: grid;
    grid-template-columns: 1fr auto auto;
    gap: 0.75rem;
    align-items: center;
    padding: 0.6rem 1rem;
    border-bottom: 1px solid var(--border);
    cursor: pointer;
    transition: background 0.1s;
}

.watchlist-item:hover { background: var(--bg3); }
.watchlist-item:last-child { border-bottom: none; }

.wl-symbol { font-weight: 600; font-size: 0.85rem; }
.wl-price { font-family: 'SF Mono', 'Fira Code', monospace; font-size: 0.85rem; font-weight: 500; }
.wl-change {
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    text-align: right;
    min-width: 65px;
}
.wl-change.up { color: var(--green); background: var(--green-bg); }
.wl-change.down { color: var(--red); background: var(--red-bg); }

/* ===== TABLES ===== */
.table-container {
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: 10px;
    overflow: hidden;
}

.table-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border);
}

.table-header h3 { font-size: 0.9rem; font-weight: 600; }

table {
    width: 100%;
    border-collapse: collapse;
}

th {
    background: var(--bg3);
    padding: 0.6rem 0.75rem;
    text-align: left;
    font-size: 0.75rem;
    color: var(--text3);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

td {
    padding: 0.6rem 0.75rem;
    border-top: 1px solid var(--border);
    font-size: 0.85rem;
}

tr:hover td { background: rgba(255,255,255,0.015); }

.mono { font-family: 'SF Mono', 'Fira Code', monospace; }
.pnl-positive { color: var(--green); font-weight: 600; }
.pnl-negative { color: var(--red); font-weight: 600; }

.badge {
    display: inline-block;
    padding: 0.15rem 0.5rem;
    border-radius: 4px;
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.badge-running { background: var(--green-bg); color: var(--green); }
.badge-stopped { background: rgba(132,142,156,0.15); color: var(--text2); }
.badge-error { background: var(--red-bg); color: var(--red); }
.badge-open { background: var(--blue-bg); color: var(--blue); }
.badge-closed { background: rgba(132,142,156,0.15); color: var(--text2); }
.badge-buy { background: var(--green-bg); color: var(--green); }
.badge-sell { background: var(--red-bg); color: var(--red); }

/* ===== BOT CARDS ===== */
.bot-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.bot-card {
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 1.25rem;
    transition: border-color 0.2s;
}

.bot-card:hover { border-color: var(--text3); }

.bot-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.bot-card-header h4 { font-size: 0.95rem; }

.bot-meta {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.75rem;
    margin-bottom: 1rem;
    padding: 0.75rem;
    background: var(--bg3);
    border-radius: 8px;
}

.bot-meta-item .bm-label { font-size: 0.7rem; color: var(--text3); text-transform: uppercase; }
.bot-meta-item .bm-value { font-size: 0.85rem; font-weight: 600; font-family: 'SF Mono', 'Fira Code', monospace; }

.bot-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.bot-footer .bot-time { font-size: 0.75rem; color: var(--text3); }

.bot-actions {
    display: flex;
    gap: 0.4rem;
}

/* ===== DASHBOARD GRID ===== */
.dash-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.dash-grid .full-width { grid-column: 1 / -1; }

/* ===== MODAL ===== */
.modal-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.75);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
    backdrop-filter: blur(4px);
}

.modal {
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 1.75rem;
    width: 460px;
    max-height: 85vh;
    overflow-y: auto;
    box-shadow: 0 20px 60px rgba(0,0,0,0.6);
}

.modal h3 { margin-bottom: 1.25rem; font-size: 1.1rem; }

.form-group { margin-bottom: 0.75rem; }

.form-group label {
    display: block;
    font-size: 0.78rem;
    color: var(--text2);
    margin-bottom: 0.3rem;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.modal-actions {
    display: flex;
    gap: 0.5rem;
    margin-top: 1.5rem;
}

/* ===== SECTION ===== */
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.section-title {
    font-size: 1rem;
    font-weight: 700;
}

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--bg4); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text3); }

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
    .market-layout { grid-template-columns: 1fr; }
    .dash-grid { grid-template-columns: 1fr; }
    .topbar-ticker { display: none; }
}

@media (max-width: 600px) {
    .main-content { padding: 1rem; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
}