/* ==========================================================================
   CoinDCX Quantum Trading Bot — Modern Design System (Light & Dark Themes)
   Super Mobile Responsive & High-Performance UI (.NET 10)
   ========================================================================== */

/* ─── CSS Variables: Dark Theme (Default) ─── */
:root {
    --bg-primary: #0a0e17;
    --bg-card: rgba(18, 26, 43, 0.88);
    --bg-card-hover: rgba(26, 38, 62, 0.95);
    --bg-card-border: rgba(59, 130, 246, 0.18);
    --bg-surface: #0f172a;
    --bg-input: rgba(10, 14, 23, 0.85);
    --bg-table-header: #0d1424;
    --bg-table-row-alt: rgba(15, 23, 42, 0.4);
    --bg-pill: rgba(10, 14, 23, 0.8);
    
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    
    --accent-blue: #3b82f6;
    --accent-blue-hover: #2563eb;
    --accent-blue-glow: rgba(59, 130, 246, 0.35);
    --accent-green: #10b981;
    --accent-green-bg: rgba(16, 185, 129, 0.15);
    --accent-red: #ef4444;
    --accent-red-bg: rgba(239, 68, 68, 0.15);
    --accent-amber: #f59e0b;
    --accent-amber-bg: rgba(245, 158, 11, 0.15);
    --accent-purple: #8b5cf6;
    
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 12px -2px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, 0.5);
    --card-blur: blur(12px);
    
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-xl: 18px;
    --radius-pill: 9999px;
}

/* ─── CSS Variables: Light Theme ─── */
:root[data-theme="light"], body.theme-light {
    --bg-primary: #f1f5f9;
    --bg-card: #ffffff;
    --bg-card-hover: #f8fafc;
    --bg-card-border: #e2e8f0;
    --bg-surface: #ffffff;
    --bg-input: #f8fafc;
    --bg-table-header: #f1f5f9;
    --bg-table-row-alt: #f8fafc;
    --bg-pill: #e2e8f0;
    
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    
    --accent-blue: #2563eb;
    --accent-blue-hover: #1d4ed8;
    --accent-blue-glow: rgba(37, 99, 235, 0.25);
    --accent-green: #059669;
    --accent-green-bg: rgba(5, 150, 105, 0.12);
    --accent-red: #dc2626;
    --accent-red-bg: rgba(220, 38, 38, 0.12);
    --accent-amber: #d97706;
    --accent-amber-bg: rgba(217, 119, 6, 0.12);
    --accent-purple: #7c3aed;
    
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.06), 0 1px 2px -1px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 12px -2px rgba(0, 0, 0, 0.08), 0 2px 6px -1px rgba(0, 0, 0, 0.04);
    --shadow-lg: 0 12px 24px -4px rgba(0, 0, 0, 0.12);
    --card-blur: none;
}

/* ─── Global Reset & Base Styles ─── */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    -webkit-tap-highlight-color: transparent;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-main);
    line-height: 1.5;
    padding: 1.25rem;
    overflow-x: hidden;
    min-height: 100vh;
    transition: background-color 0.25s ease, color 0.25s ease;
}

/* ─── Container Layout ─── */
.app-container {
    max-width: 1680px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    width: 100%;
}

/* ─── Header Styling ─── */
.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.5rem;
    background: var(--bg-card);
    border: 1px solid var(--bg-card-border);
    border-radius: var(--radius-xl);
    backdrop-filter: var(--card-blur);
    box-shadow: var(--shadow-md);
    flex-wrap: wrap;
    gap: 1rem;
    transition: all 0.2s ease;
}

.brand-section {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo-icon {
    font-size: 1.85rem;
    line-height: 1;
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    filter: drop-shadow(0 2px 8px var(--accent-blue-glow));
}

.brand-text h1 {
    font-size: 1.25rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    color: var(--text-primary);
    line-height: 1.2;
}

.version-tag {
    font-size: 0.72rem;
    color: var(--accent-blue);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin-top: 2px;
}

.header-status-group {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
}

/* ─── Navigation Tabs ─── */
.nav-tabs-group {
    display: flex;
    background: var(--bg-pill);
    border: 1px solid var(--bg-card-border);
    border-radius: var(--radius-md);
    padding: 4px;
    gap: 3px;
    max-width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
}
.nav-tabs-group::-webkit-scrollbar { display: none; }

.nav-tab-btn {
    color: var(--text-secondary);
    font-size: 0.8rem;
    font-weight: 600;
    padding: 0.45rem 0.85rem;
    border-radius: var(--radius-sm);
    text-decoration: none;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    white-space: nowrap;
}

.nav-tab-btn:hover {
    color: var(--text-primary);
    background: rgba(125, 125, 125, 0.1);
}

.nav-tab-btn.active {
    background: var(--accent-blue);
    color: #ffffff;
    box-shadow: 0 2px 8px var(--accent-blue-glow);
}

/* ─── Mode Toggles & Pills ─── */
.mode-toggle-group {
    display: flex;
    background: var(--bg-pill);
    border: 1px solid var(--bg-card-border);
    border-radius: var(--radius-md);
    padding: 4px;
    gap: 2px;
}

.mode-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 0.78rem;
    font-weight: 700;
    padding: 0.4rem 0.85rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.mode-btn.active {
    background: var(--accent-blue);
    color: #ffffff;
    box-shadow: 0 2px 8px var(--accent-blue-glow);
}

.status-pill {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--bg-pill);
    border: 1px solid var(--bg-card-border);
    padding: 0.4rem 0.85rem;
    border-radius: var(--radius-pill);
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--text-secondary);
    white-space: nowrap;
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--text-muted);
    transition: all 0.3s ease;
}

.status-dot.active {
    background: var(--accent-green);
    box-shadow: 0 0 10px var(--accent-green);
}

.balance-card {
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.12), rgba(16, 185, 129, 0.12));
    border: 1px solid rgba(59, 130, 246, 0.3);
    padding: 0.45rem 1rem;
    border-radius: var(--radius-md);
    display: flex;
    flex-direction: column;
    justify-content: center;
    box-shadow: var(--shadow-sm);
}

.balance-label {
    font-size: 0.62rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    font-weight: 700;
    letter-spacing: 0.05em;
}

.balance-value {
    font-size: 1rem;
    font-weight: 800;
    color: var(--accent-green);
    font-family: var(--font-mono);
    line-height: 1.2;
}

/* ─── Dashboard Grid Layout ─── */
.dashboard-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 380px;
    gap: 1.25rem;
    align-items: start;
}

.left-col {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    min-width: 0;
}

.right-col {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    min-width: 0;
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.75rem;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.section-header h2 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.01em;
}

.sub-badge {
    font-size: 0.72rem;
    background: var(--accent-blue-glow);
    color: var(--accent-blue);
    padding: 0.22rem 0.65rem;
    border-radius: var(--radius-sm);
    font-weight: 700;
    letter-spacing: 0.02em;
}

/* ─── Monitored Asset Cards ─── */
.asset-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 0.75rem;
}

.asset-card {
    background: var(--bg-card);
    border: 1px solid var(--bg-card-border);
    border-radius: var(--radius-lg);
    padding: 0.85rem;
    transition: transform 0.2s cubic-bezier(0.4, 0, 0.2, 1), border-color 0.2s, box-shadow 0.2s;
    cursor: pointer;
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.asset-card:hover {
    transform: translateY(-2px);
    border-color: var(--accent-blue);
    box-shadow: var(--shadow-md);
}

.asset-card.selected {
    border-color: var(--accent-blue);
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.12), rgba(139, 92, 246, 0.08));
    box-shadow: 0 0 0 1px var(--accent-blue), var(--shadow-md);
}

.asset-card-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.asset-sym {
    font-weight: 800;
    font-size: 0.88rem;
    color: var(--text-primary);
}

.regime-tag {
    font-size: 0.62rem;
    padding: 0.15rem 0.45rem;
    border-radius: 4px;
    text-transform: uppercase;
    font-weight: 800;
    letter-spacing: 0.04em;
}
.regime-bull { background: var(--accent-green-bg); color: var(--accent-green); }
.regime-bear { background: var(--accent-red-bg); color: var(--accent-red); }
.regime-sideways { background: var(--accent-amber-bg); color: var(--accent-amber); }

.asset-price {
    font-size: 1.05rem;
    font-weight: 800;
    font-family: var(--font-mono);
    color: var(--text-primary);
}

.prob-bar {
    display: flex;
    height: 5px;
    border-radius: var(--radius-pill);
    overflow: hidden;
    background: var(--bg-pill);
    margin-top: 0.25rem;
}
.prob-buy-fill { background: var(--accent-green); height: 100%; transition: width 0.3s ease; }
.prob-sell-fill { background: var(--accent-red); height: 100%; transition: width 0.3s ease; }

/* ─── Active Positions ─── */
.active-positions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 0.75rem;
    min-height: 70px;
}

.no-positions-msg {
    grid-column: 1 / -1;
    background: var(--bg-card);
    border: 1px dashed var(--bg-card-border);
    border-radius: var(--radius-lg);
    padding: 1.25rem;
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-weight: 500;
}

.position-card {
    background: var(--bg-card);
    border: 1px solid var(--bg-card-border);
    border-radius: var(--radius-lg);
    padding: 1rem;
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    transition: all 0.2s ease;
}

.position-card:hover {
    box-shadow: var(--shadow-md);
}

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

.pos-dir {
    font-size: 0.72rem;
    font-weight: 800;
    padding: 0.2rem 0.55rem;
    border-radius: var(--radius-sm);
    letter-spacing: 0.04em;
}
.pos-dir.LONG { background: var(--accent-green); color: #000000; }
.pos-dir.SHORT { background: var(--accent-red); color: #ffffff; }

.trailing-badge {
    background: var(--accent-green-bg);
    color: var(--accent-green);
    border: 1px solid rgba(16, 185, 129, 0.3);
    font-size: 0.68rem;
    font-weight: 700;
    padding: 0.2rem 0.5rem;
    border-radius: var(--radius-sm);
}

.pos-details {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
    font-size: 0.8rem;
}

.pos-pnl {
    font-size: 1.15rem;
    font-weight: 800;
    font-family: var(--font-mono);
}
.pnl-green { color: var(--accent-green); }
.pnl-red { color: var(--accent-red); }

.btn-close-pos {
    background: var(--accent-red-bg);
    border: 1px solid rgba(239, 68, 68, 0.4);
    color: var(--accent-red);
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.4rem 0.75rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.35rem;
    min-height: 36px;
}
.btn-close-pos:hover {
    background: var(--accent-red);
    color: #ffffff;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.35);
}

/* ─── Chart Section ─── */
.chart-container-card {
    background: var(--bg-card);
    border: 1px solid var(--bg-card-border);
    border-radius: var(--radius-xl);
    padding: 1rem;
    box-shadow: var(--shadow-md);
    backdrop-filter: var(--card-blur);
    display: flex;
    flex-direction: column;
}

.chart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.75rem;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.chart-tabs {
    display: flex;
    gap: 0.4rem;
    flex-wrap: wrap;
    max-width: 100%;
}

.chart-tab {
    background: var(--bg-pill);
    border: 1px solid var(--bg-card-border);
    color: var(--text-secondary);
    padding: 0.35rem 0.75rem;
    border-radius: var(--radius-sm);
    font-size: 0.78rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s ease;
}
.chart-tab:hover {
    color: var(--text-primary);
}
.chart-tab.active {
    background: var(--accent-blue);
    color: #ffffff;
    border-color: var(--accent-blue);
    box-shadow: 0 2px 8px var(--accent-blue-glow);
}

.timeframe-group {
    display: flex;
    background: var(--bg-pill);
    border: 1px solid var(--bg-card-border);
    border-radius: var(--radius-md);
    padding: 3px;
    gap: 2px;
    overflow-x: auto;
    scrollbar-width: none;
}
.timeframe-group::-webkit-scrollbar { display: none; }

.tf-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 0.35rem 0.65rem;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.tf-btn:hover {
    color: var(--text-primary);
    background: rgba(125, 125, 125, 0.1);
}

.tf-btn.active {
    background: var(--accent-blue);
    color: #ffffff;
    box-shadow: 0 2px 8px var(--accent-blue-glow);
}

.chart-view {
    height: 520px;
    width: 100%;
    border-radius: var(--radius-md);
    overflow: hidden;
    margin-top: 0.5rem;
}

/* ─── Control Aside & Forms ─── */
.control-card, .logs-card, .card {
    background: var(--bg-card);
    border: 1px solid var(--bg-card-border);
    border-radius: var(--radius-xl);
    padding: 1.25rem;
    box-shadow: var(--shadow-md);
    backdrop-filter: var(--card-blur);
}

.control-card-header h3, .logs-card-header h3 {
    font-size: 1.05rem;
    font-weight: 800;
    margin-bottom: 1rem;
    color: var(--text-primary);
    letter-spacing: -0.01em;
}

.control-form {
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
}

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

.form-row label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    font-weight: 700;
    letter-spacing: 0.01em;
}

.form-input {
    background: var(--bg-input);
    border: 1px solid var(--bg-card-border);
    color: var(--text-primary);
    padding: 0.65rem 0.9rem;
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    font-family: var(--font-mono);
    outline: none;
    min-height: 44px;
    width: 100%;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-input:focus {
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 3px var(--accent-blue-glow);
}

.form-check-row {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    margin-top: 0.35rem;
    min-height: 38px;
}

.form-check-row input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: var(--accent-blue);
}

.form-check-row label {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-primary);
    cursor: pointer;
}

.action-buttons-row {
    display: flex;
    gap: 0.75rem;
    margin-top: 0.75rem;
}

.btn-primary {
    flex: 1;
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-blue-hover));
    border: none;
    color: #ffffff;
    padding: 0.8rem 1rem;
    border-radius: var(--radius-md);
    font-weight: 800;
    font-size: 0.88rem;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 12px var(--accent-blue-glow);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    min-height: 46px;
}
.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 16px var(--accent-blue-glow);
    opacity: 0.95;
}
.btn-primary:active {
    transform: translateY(1px);
}

.btn-danger {
    flex: 1;
    background: linear-gradient(135deg, #dc2626, var(--accent-red));
    border: none;
    color: #ffffff;
    padding: 0.8rem 1rem;
    border-radius: var(--radius-md);
    font-weight: 800;
    font-size: 0.88rem;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.35);
    min-height: 46px;
    transition: all 0.2s ease;
}
.btn-danger:hover {
    transform: translateY(-1px);
    opacity: 0.95;
}

.btn-secondary {
    background: var(--accent-red-bg);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: var(--accent-red);
    padding: 0.45rem 0.9rem;
    border-radius: var(--radius-md);
    font-size: 0.78rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    min-height: 38px;
}
.btn-secondary:hover {
    background: var(--accent-red);
    color: #ffffff;
}

/* ─── Live Console / Logs ─── */
.logs-console {
    background: var(--bg-input);
    border: 1px solid var(--bg-card-border);
    border-radius: var(--radius-md);
    height: 260px;
    overflow-y: auto;
    padding: 0.85rem;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    display: flex;
    flex-direction: column;
    gap: 0.45rem;
    -webkit-overflow-scrolling: touch;
}

.log-entry { display: flex; gap: 0.5rem; word-break: break-all; }
.log-ts { color: var(--text-muted); flex-shrink: 0; }
.log-lvl-INFO { color: var(--accent-blue); font-weight: 700; flex-shrink: 0; }
.log-lvl-ERROR { color: var(--accent-red); font-weight: 700; flex-shrink: 0; }
.log-lvl-WARNING { color: var(--accent-amber); font-weight: 700; flex-shrink: 0; }

/* ─── KPI Cards ─── */
.kpi-card {
    background: var(--bg-card);
    border: 1px solid var(--bg-card-border);
    border-radius: var(--radius-lg);
    padding: 1rem 1.15rem;
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    box-shadow: var(--shadow-sm);
}

.kpi-label {
    font-size: 0.72rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    font-weight: 700;
    letter-spacing: 0.04em;
}

.kpi-value {
    font-size: 1.35rem;
    font-weight: 800;
    font-family: var(--font-mono);
    color: var(--text-primary);
}

.backtest-form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1rem;
}

/* ─── Data Tables ─── */
.trades-section {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    width: 100%;
}

.table-card {
    background: var(--bg-card);
    border: 1px solid var(--bg-card-border);
    border-radius: var(--radius-xl);
    overflow-x: auto;
    overflow-y: auto;
    max-height: 480px;
    padding: 0;
    box-shadow: var(--shadow-md);
    -webkit-overflow-scrolling: touch;
    position: relative;
}

.data-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    font-size: 0.82rem;
    text-align: left;
    min-width: 680px;
}

.data-table thead {
    position: sticky;
    top: 0;
    background: var(--bg-table-header);
    z-index: 5;
}

.data-table th {
    color: var(--text-secondary);
    padding: 0.85rem 0.9rem;
    border-bottom: 2px solid var(--bg-card-border);
    font-weight: 800;
    text-transform: uppercase;
    font-size: 0.7rem;
    letter-spacing: 0.04em;
    background: var(--bg-table-header);
    white-space: nowrap;
}

.data-table td {
    padding: 0.75rem 0.9rem;
    border-bottom: 1px solid var(--bg-card-border);
    font-family: var(--font-mono);
    color: var(--text-primary);
    white-space: nowrap;
}

.data-table tbody tr:nth-child(even) {
    background-color: var(--bg-table-row-alt);
}

.data-table tbody tr:hover {
    background-color: rgba(59, 130, 246, 0.08);
}

/* ─── Custom Scrollbars ─── */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
::-webkit-scrollbar-track {
    background: var(--bg-pill);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb {
    background: var(--bg-card-border);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--accent-blue);
}

/* ─── Modern Theme Switcher Floating Pill ─── */
.theme-toggle-floating {
    position: fixed;
    bottom: 1.5rem;
    right: 1.5rem;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--bg-card);
    border: 1px solid var(--bg-card-border);
    box-shadow: var(--shadow-lg);
    cursor: pointer;
    font-size: 1.35rem;
    color: var(--text-primary);
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    backdrop-filter: var(--card-blur);
}
.theme-toggle-floating:hover {
    transform: scale(1.1) rotate(15deg);
    border-color: var(--accent-blue);
    box-shadow: 0 8px 20px var(--accent-blue-glow);
}
.theme-toggle-floating:active {
    transform: scale(0.95);
}

/* ─── Log Filter Buttons ─── */
.log-filter-btn {
    background: var(--bg-pill);
    border: 1px solid var(--bg-card-border);
    color: var(--text-secondary);
    padding: 0.4rem 0.8rem;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s ease;
}
.log-filter-btn:hover { color: var(--text-primary); }
.log-filter-btn.active {
    background: var(--accent-blue);
    color: #ffffff !important;
    border-color: var(--accent-blue) !important;
    box-shadow: 0 2px 8px var(--accent-blue-glow);
}

/* ==========================================================================
   SUPER MOBILE RESPONSIVE MEDIA QUERIES (Breakpoints)
   ========================================================================== */

/* ─── Tablet & Small Laptops (<= 1180px) ─── */
@media (max-width: 1180px) {
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
    
    .right-col {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
        gap: 1.25rem;
    }
    
    .chart-view {
        height: 440px;
    }
}

/* ─── Medium Tablets (<= 900px) ─── */
@media (max-width: 900px) {
    body {
        padding: 0.85rem;
    }
    
    .app-header {
        padding: 0.85rem 1rem;
        gap: 0.75rem;
    }
    
    .brand-section {
        width: 100%;
        justify-content: flex-start;
    }
    
    .header-status-group {
        width: 100%;
        justify-content: space-between;
    }
    
    .balance-card {
        flex: 1;
        min-width: 130px;
    }
    
    .right-col {
        grid-template-columns: 1fr;
    }
    
    .chart-view {
        height: 380px;
    }
}

/* ─── Mobile Phones (<= 640px) ─── */
@media (max-width: 640px) {
    body {
        padding: 0.6rem 0.5rem;
    }
    
    .app-container {
        gap: 1rem;
    }
    
    .app-header {
        border-radius: var(--radius-lg);
        padding: 0.75rem;
    }
    
    .brand-text h1 {
        font-size: 1.1rem;
    }
    
    .nav-tabs-group {
        width: 100%;
        overflow-x: auto;
        padding: 3px;
    }
    
    .nav-tab-btn {
        font-size: 0.75rem;
        padding: 0.4rem 0.65rem;
    }
    
    .mode-toggle-group {
        width: 100%;
        justify-content: space-between;
    }
    
    .mode-btn {
        flex: 1;
        text-align: center;
    }
    
    .status-pill {
        font-size: 0.68rem;
        padding: 0.35rem 0.65rem;
    }
    
    .asset-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.5rem;
    }
    
    .asset-card {
        padding: 0.7rem;
        border-radius: var(--radius-md);
    }
    
    .asset-sym { font-size: 0.8rem; }
    .asset-price { font-size: 0.95rem; }
    
    .active-positions-grid {
        grid-template-columns: 1fr;
    }
    
    .chart-container-card {
        padding: 0.75rem;
        border-radius: var(--radius-lg);
    }
    
    .chart-header {
        flex-direction: column;
        align-items: stretch;
    }
    
    .chart-tabs {
        width: 100%;
        overflow-x: auto;
        white-space: nowrap;
        padding-bottom: 4px;
    }
    
    .timeframe-group {
        width: 100%;
        justify-content: space-between;
    }
    
    .tf-btn {
        padding: 0.3rem 0.45rem;
        font-size: 0.7rem;
        flex: 1;
        text-align: center;
    }
    
    .chart-view {
        height: 320px;
    }
    
    .control-card, .logs-card, .card {
        padding: 1rem;
        border-radius: var(--radius-lg);
    }
    
    .backtest-form-grid {
        grid-template-columns: 1fr;
    }
    
    .kpi-card {
        padding: 0.75rem 0.85rem;
    }
    
    .kpi-value {
        font-size: 1.15rem;
    }
    
    .table-card {
        border-radius: var(--radius-lg);
    }
    
    .theme-toggle-floating {
        bottom: 1rem;
        right: 1rem;
        width: 42px;
        height: 42px;
        font-size: 1.15rem;
    }
}

/* ─── Ultra Small Phones (<= 380px) ─── */
@media (max-width: 380px) {
    .asset-grid {
        grid-template-columns: 1fr;
    }
    
    .brand-text h1 {
        font-size: 1rem;
    }
    
    .balance-card {
        width: 100%;
    }
}