:root {
    --bg-dark: #080b10;
    --bg-surface: #0f141c;
    --bg-card: rgba(20, 26, 36, 0.85);
    --bg-card-hover: rgba(28, 36, 50, 0.95);
    --border-color: rgba(255, 255, 255, 0.08);
    --border-accent: rgba(56, 139, 253, 0.3);
    --text-main: #f0f6fc;
    --text-muted: #8b949e;
    --primary: #2f81f7;
    --primary-hover: #58a6ff;
    --success: #3fb950;
    --success-bg: rgba(63, 185, 80, 0.12);
    --warning: #d29922;
    --warning-bg: rgba(210, 153, 34, 0.12);
    --danger: #f85149;
    --danger-bg: rgba(248, 81, 73, 0.12);
    --info: #58a6ff;
    --font-sans: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
}

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

body {
    background-color: var(--bg-dark);
    color: var(--text-main);
    font-family: var(--font-sans);
    font-size: 14px;
    line-height: 1.5;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.font-mono { font-family: var(--font-mono); }
.font-bold { font-weight: 700; }
.text-success { color: var(--success) !important; }
.text-warning { color: var(--warning) !important; }
.text-danger { color: var(--danger) !important; }
.text-info { color: var(--info) !important; }
.text-muted { color: var(--text-muted) !important; }
.text-sm { font-size: 0.85rem; }
.text-xs { font-size: 0.75rem; }
.text-center { text-align: center; }

/* Wide Container */
.container {
    width: 96%;
    max-width: 1680px;
    margin: 0 auto;
    padding: 1rem 0;
    flex: 1;
}

/* Top Navigation Bar */
.navbar {
    background: rgba(13, 17, 23, 0.95);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-color);
    padding: 0.6rem 1.5rem;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-container {
    width: 96%;
    max-width: 1680px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
}

.nav-left {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    color: var(--text-main);
}

.brand-logo { font-size: 1.4rem; }
.brand-name {
    font-weight: 800;
    font-size: 1.15rem;
    letter-spacing: 0.05em;
    background: linear-gradient(135deg, #fff 40%, var(--primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.nav-item {
    color: var(--text-muted);
    text-decoration: none;
    padding: 0.45rem 0.85rem;
    border-radius: 6px;
    font-weight: 500;
    font-size: 0.92rem;
    transition: all 0.15s ease;
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.nav-item:hover, .nav-item.active {
    color: #fff;
    background: rgba(255, 255, 255, 0.06);
}

/* Top System & Balance Bar */
.top-widgets-bar {
    background: #0d121a;
    border-bottom: 1px solid var(--border-color);
    padding: 0.5rem 1.5rem;
}

.widgets-container {
    width: 96%;
    max-width: 1680px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
}

.widget-group {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.live-widget-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.88rem;
}

.live-widget-label {
    color: var(--text-muted);
}

.live-widget-value {
    font-family: var(--font-mono);
    font-weight: 600;
    color: #fff;
}

.env-badge {
    padding: 0.2rem 0.6rem;
    border-radius: 4px;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.env-demo {
    background: rgba(56, 139, 253, 0.15);
    color: #58a6ff;
    border: 1px solid rgba(56, 139, 253, 0.3);
}

.env-live {
    background: rgba(248, 81, 73, 0.2);
    color: #ff7b72;
    border: 1px solid rgba(248, 81, 73, 0.4);
}

/* Page Header */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.25rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border-color);
}

.header-titles h1 {
    font-size: 1.4rem;
    font-weight: 700;
    color: #fff;
}

.header-titles .subtitle {
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-top: 0.2rem;
}

.header-actions {
    display: flex;
    gap: 0.75rem;
    align-items: center;
}

/* KPI Summary Cards Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem 1.25rem;
    transition: transform 0.15s ease, border-color 0.15s ease;
}

.stat-card:hover {
    border-color: rgba(255, 255, 255, 0.18);
    transform: translateY(-1px);
}

.stat-label {
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    margin-bottom: 0.35rem;
}

.stat-val {
    font-size: 1.35rem;
    font-weight: 700;
    font-family: var(--font-mono);
    color: #fff;
}

.stat-sub {
    font-size: 0.78rem;
    color: var(--text-muted);
    margin-top: 0.3rem;
}

/* Trading Badges (BUY / SELL, LONG / SHORT, MAKER / TAKER) */
.badge {
    display: inline-block;
    padding: 0.2rem 0.55rem;
    border-radius: 4px;
    font-size: 0.72rem;
    font-weight: 700;
    font-family: var(--font-mono);
    letter-spacing: 0.04em;
    text-align: center;
}

.badge-buy {
    background: var(--success-bg);
    color: var(--success);
    border: 1px solid rgba(63, 185, 80, 0.3);
}

.badge-sell {
    background: var(--danger-bg);
    color: var(--danger);
    border: 1px solid rgba(248, 81, 73, 0.3);
}

.badge-long {
    background: var(--success-bg);
    color: var(--success);
    border: 1px solid rgba(63, 185, 80, 0.3);
}

.badge-short {
    background: var(--danger-bg);
    color: var(--danger);
    border: 1px solid rgba(248, 81, 73, 0.3);
}

.badge-active {
    background: rgba(56, 139, 253, 0.15);
    color: var(--info);
    border: 1px solid var(--border-accent);
}

.badge-live {
    background: var(--success-bg);
    color: var(--success);
}

.badge-filled {
    background: rgba(163, 113, 247, 0.15);
    color: #d2a8ff;
    border: 1px solid rgba(163, 113, 247, 0.3);
}

.badge-warning {
    background: var(--warning-bg);
    color: var(--warning);
}

.badge-danger {
    background: var(--danger-bg);
    color: var(--danger);
}

/* Sections & Cards */
.card-section {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.25rem;
    margin-bottom: 1.5rem;
}

.section-title {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: #fff;
}

/* Tables */
.table-responsive {
    width: 100%;
    overflow-x: auto;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.88rem;
    text-align: left;
}

.data-table th {
    background: rgba(255, 255, 255, 0.03);
    color: var(--text-muted);
    font-weight: 600;
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 0.65rem 0.85rem;
    border-bottom: 1px solid var(--border-color);
}

.data-table td {
    padding: 0.65rem 0.85rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    vertical-align: middle;
}

.data-table tr:hover td {
    background: rgba(255, 255, 255, 0.02);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    padding: 0.5rem 1rem;
    font-size: 0.85rem;
    font-weight: 600;
    border-radius: 6px;
    border: 1px solid transparent;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.15s ease;
}

.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-hover); }
.btn-success { background: #238636; color: #fff; }
.btn-success:hover { background: #2ea043; }
.btn-warning { background: #9e6a03; color: #fff; }
.btn-warning:hover { background: #bb8009; }
.btn-danger { background: #da3633; color: #fff; }
.btn-danger:hover { background: #f85149; }
.btn-outline { background: transparent; border: 1px solid var(--border-color); color: var(--text-main); }
.btn-outline:hover { background: rgba(255, 255, 255, 0.08); border-color: rgba(255, 255, 255, 0.2); }
.btn-outline-danger { background: transparent; border: 1px solid rgba(248, 81, 73, 0.4); color: var(--danger); }
.btn-outline-danger:hover { background: var(--danger-bg); border-color: var(--danger); }
.btn-sm { padding: 0.35rem 0.65rem; font-size: 0.8rem; }
.btn-xs { padding: 0.2rem 0.45rem; font-size: 0.72rem; }

/* Forms & Inputs */
.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1rem;
}

.form-field {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

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

.form-field label {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-muted);
}

.input-control {
    background: #090d14;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 0.55rem 0.75rem;
    color: #fff;
    font-size: 0.9rem;
    font-family: var(--font-sans);
    transition: border-color 0.15s ease;
}

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

.secret-input {
    -webkit-text-security: disc;
    text-security: disc;
    font-family: var(--font-mono);
    letter-spacing: 0.12em;
}

/* Raw Response Pre Box */
.raw-response-card {
    background: #06090e;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem;
    margin-top: 1rem;
}

.raw-response-title {
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.raw-response {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: #7ee787;
    background: transparent;
    overflow-x: auto;
    white-space: pre-wrap;
    word-break: break-all;
    max-height: 260px;
}

/* Alerts */
.alert {
    padding: 0.75rem 1rem;
    border-radius: 6px;
    margin-bottom: 1rem;
    font-size: 0.88rem;
}

.alert-success { background: var(--success-bg); border: 1px solid rgba(63, 185, 80, 0.3); color: #56d364; }
.alert-danger { background: var(--danger-bg); border: 1px solid rgba(248, 81, 73, 0.3); color: #ff7b72; }

/* Active Instrument Cards */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.instrument-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.25rem;
}

.instrument-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.85rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border-color);
}

.instrument-metrics {
    display: flex;
    flex-direction: column;
    gap: 0.45rem;
}

.metric-row {
    display: flex;
    justify-content: space-between;
    font-size: 0.88rem;
}

.metric-row span:first-child { color: var(--text-muted); }

/* Footer */
.footer {
    border-top: 1px solid var(--border-color);
    padding: 1rem 0;
    margin-top: auto;
    font-size: 0.8rem;
    color: var(--text-muted);
}

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

/* Auth Pages */
.auth-body {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
}

.auth-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 2.2rem;
    width: 100%;
    max-width: 440px;
}

.auth-header {
    text-align: center;
    margin-bottom: 1.5rem;
}

.auth-icon { font-size: 2.2rem; }
.auth-header h2 { font-size: 1.4rem; font-weight: 700; margin: 0.4rem 0 0.2rem; color: #fff; }
.auth-header p { color: var(--text-muted); font-size: 0.88rem; }