/* ============================================
   Algo Trading Dashboard - Mobile-First CSS
   ============================================ */

:root {
    --bg: #0d1117;
    --bg-card: #161b22;
    --bg-card-hover: #1c2333;
    --border: #30363d;
    --text: #e6edf3;
    --text-muted: #8b949e;
    --text-bold: #f0f6fc;
    --primary: #2f81f7;
    --primary-hover: #388bfd;
    --success: #3fb950;
    --danger: #f85149;
    --warning: #d29922;
    --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --mono: "SF Mono", "Cascadia Code", "Consolas", monospace;
    --radius: 8px;
}

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

body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    line-height: 1.5;
    min-height: 100vh;
}

/* ---- NAVBAR ---- */
.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 16px;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-brand {
    font-weight: 700;
    font-size: 18px;
    color: var(--primary);
}

.nav-links {
    display: flex;
    gap: 4px;
}

.nav-links a {
    color: var(--text-muted);
    text-decoration: none;
    padding: 6px 12px;
    border-radius: var(--radius);
    font-size: 14px;
    transition: all 0.2s;
}

.nav-links a:hover, .nav-links a.active {
    color: var(--text);
    background: var(--bg-card-hover);
}

.nav-links .nav-logout {
    color: var(--danger);
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text);
    font-size: 22px;
    cursor: pointer;
    padding: 4px 8px;
}

/* Mobile nav */
@media (max-width: 640px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--bg-card);
        border-bottom: 1px solid var(--border);
        flex-direction: column;
        padding: 8px;
    }
    .nav-links.show { display: flex; }
    .nav-toggle { display: block; }
}

/* ---- CONTAINER ---- */
.container {
    max-width: 960px;
    margin: 0 auto;
    padding: 16px;
}

/* ---- CARDS ---- */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px;
    margin-bottom: 16px;
}

.card h3 {
    font-size: 14px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 12px;
}

/* ---- GRID ---- */
.grid { display: grid; gap: 16px; }
.grid-2 { grid-template-columns: 1fr 1fr; }

@media (max-width: 640px) {
    .grid-2 { grid-template-columns: 1fr; }
}

/* ---- METRICS ---- */
.metric-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.metric-grid-wide {
    grid-template-columns: repeat(3, 1fr);
}

@media (min-width: 640px) {
    .metric-grid-wide {
        grid-template-columns: repeat(5, 1fr);
    }
}

.metric {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

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

.metric-value {
    font-size: 18px;
    font-weight: 600;
    font-family: var(--mono);
}

/* ---- STATUS BAR ---- */
.status-bar {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 16px;
    font-size: 14px;
}

.status-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--text-muted);
}

.status-dot.online { background: var(--success); }
.status-dot.offline { background: var(--danger); }
.status-dot.paper { background: var(--warning); }

.status-time {
    margin-left: auto;
    font-size: 12px;
    color: var(--text-muted);
    font-family: var(--mono);
}

/* ---- TABLES ---- */
.table-wrap { overflow-x: auto; }

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

th {
    text-align: left;
    padding: 8px;
    border-bottom: 2px solid var(--border);
    color: var(--text-muted);
    font-size: 11px;
    text-transform: uppercase;
    white-space: nowrap;
}

td {
    padding: 8px;
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
}

tr:hover td { background: var(--bg-card-hover); }

/* ---- KILL SWITCHES ---- */
.kill-switches {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.kill-item {
    display: flex;
    align-items: center;
    gap: 8px;
}

.kill-label {
    font-size: 14px;
    color: var(--text-muted);
}

/* ---- BADGES ---- */
.badge {
    display: inline-block;
    padding: 2px 10px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
}

.badge-ok { background: rgba(63, 185, 80, 0.15); color: var(--success); }
.badge-danger { background: rgba(248, 81, 73, 0.15); color: var(--danger); }
.badge-warning { background: rgba(210, 153, 34, 0.15); color: var(--warning); }

/* ---- BUTTONS ---- */
.btn {
    display: inline-block;
    padding: 8px 20px;
    border: none;
    border-radius: var(--radius);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.2s;
}

.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-hover); }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { opacity: 0.85; }
.btn-warning { background: var(--warning); color: #000; }
.btn-warning:hover { opacity: 0.85; }
.btn-sm { padding: 4px 12px; font-size: 12px; }
.btn-full { width: 100%; }

.btn-group {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

/* ---- FORMS ---- */
.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 4px;
}

.form-group input {
    width: 100%;
    padding: 10px 12px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text);
    font-size: 15px;
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary);
}

/* ---- LOGIN PAGE ---- */
.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 80vh;
}

.login-box {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px;
    width: 100%;
    max-width: 380px;
}

.login-box h1 {
    font-size: 24px;
    margin-bottom: 4px;
}

.login-subtitle {
    color: var(--text-muted);
    font-size: 14px;
    margin-bottom: 24px;
}

/* ---- ALERTS ---- */
.alert {
    padding: 10px 16px;
    border-radius: var(--radius);
    margin-bottom: 16px;
    font-size: 14px;
}

.alert-success { background: rgba(63, 185, 80, 0.15); color: var(--success); border: 1px solid rgba(63, 185, 80, 0.3); }
.alert-error { background: rgba(248, 81, 73, 0.15); color: var(--danger); border: 1px solid rgba(248, 81, 73, 0.3); }
.alert-warning { background: rgba(210, 153, 34, 0.15); color: var(--warning); border: 1px solid rgba(210, 153, 34, 0.3); }

/* ---- LOG VIEWER ---- */
.log-viewer {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 12px;
    font-family: var(--mono);
    font-size: 12px;
    line-height: 1.6;
    max-height: 500px;
    overflow-y: auto;
    white-space: pre-wrap;
    word-break: break-all;
}

.log-controls {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.log-controls label {
    font-size: 13px;
    color: var(--text-muted);
    cursor: pointer;
}

/* ---- INFO LIST ---- */
.info-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.info-item {
    display: flex;
    justify-content: space-between;
    padding: 6px 0;
    border-bottom: 1px solid var(--border);
    font-size: 14px;
}

.info-item span:first-child {
    color: var(--text-muted);
}

/* ---- UTILITY ---- */
.text-success { color: var(--success) !important; }
.text-danger { color: var(--danger) !important; }
.text-warning { color: var(--warning) !important; }
.text-muted { color: var(--text-muted) !important; }
.text-bold { font-weight: 700 !important; }
.text-center { text-align: center !important; }