/* ========================================
   A Malayali Trader - Volatility Analytics
   ======================================== */

:root {
    /* Colors - Verified Dark Theme */
    --bg-primary: #040406;
    --bg-secondary: #0c0c12;
    --bg-card: #14141d;
    --bg-hover: #1f1f2e;

    --text-primary: #f0f0f5;
    --text-secondary: #9494a8;
    --text-muted: #5e5e6e;

    /* A Malayali Trader Accent Colors */
    --accent-primary: #eab308;
    /* Gold/Yellow for branding */
    --accent-secondary: #3b82f6;
    /* Blue */
    --accent-gradient: linear-gradient(135deg, #eab308 0%, #facc15 100%);

    --border-color: #272732;
    --border-focus: #eab308;

    /* IV Colors (Cold/Blue-ish) */
    --iv-7d-color: #06b6d4;
    /* Cyan */
    --iv-30d-color: #3b82f6;
    /* Blue */

    /* RV Colors (Warm/Red-ish) */
    --rv-7d-color: #f43f5e;
    /* Rose */
    --rv-30d-color: #f97316;
    /* Orange */

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;

    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;

    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset & Base */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    height: 100%;
}

body {
    font-family: 'Outfit', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.5;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* App Container */
.app-container {
    max-width: 1440px;
    margin: 0 auto;
    padding: var(--spacing-md);
    width: 100%;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

/* Header */
.header {
    padding: var(--spacing-lg) 0;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: var(--spacing-sm);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.brand-text {
    font-size: 1.75rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    background: linear-gradient(to right, #ffffff, #9494a8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 0.95rem;
    font-weight: 400;
}

/* Tab Navigation (Inside Header) */
.tab-navigation {
    display: flex;
    gap: var(--spacing-sm);
}

.tab-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 0.5rem 1rem;
    background: transparent;
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-family: inherit;
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-fast);
}

.tab-btn:hover {
    color: var(--text-primary);
    background: var(--bg-hover);
}

.tab-btn.active {
    color: var(--accent-primary);
    background: rgba(234, 179, 8, 0.1);
    border-color: rgba(234, 179, 8, 0.2);
}



.tab-icon {
    font-size: 1.2rem;
}

/* Tab Content */
.tab-content {
    display: none;
    animation: fadeIn 0.3s ease;
}

.tab-content.active {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(5px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Controls */
.controls-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    display: grid;
    grid-template-columns: 280px 1fr auto auto;
    gap: var(--spacing-xl);
    align-items: start;
}

.control-group label {
    display: block;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    margin-bottom: var(--spacing-sm);
}

/* Search & Navigation */
.select-wrapper {
    position: relative;
    width: 220px;
}

#instrument-search {
    width: 100%;
    padding: 0.6rem 1rem 0.6rem 2.5rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--accent-primary);
    /* Selected color by default since it shows selection now */
    font-family: inherit;
    font-size: 0.95rem;
    font-weight: 600;
    transition: var(--transition-fast);
}

#instrument-search::placeholder {
    color: var(--text-muted);
    font-weight: 400;
}

#instrument-search:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 2px rgba(234, 179, 8, 0.1);
}

.search-icon {
    position: absolute;
    left: 0.8rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
    pointer-events: none;
    font-size: 1.1rem;
}

.dropdown {
    position: absolute;
    top: calc(100% + 4px);
    left: 0;
    right: 0;
    max-height: 300px;
    overflow-y: auto;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    z-index: 100;
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.5);
}

.dropdown.hidden {
    display: none;
}

.dropdown-item {
    padding: 0.75rem 1rem;
    font-size: 0.9rem;
    cursor: pointer;
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition-fast);
}

.dropdown-item:last-child {
    border-bottom: none;
}

.dropdown-item:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

/* Navigation Buttons */
.instrument-nav {
    display: flex;
    justify-content: space-between;
    /* Push buttons to edges */
    margin-top: 8px;
    width: 100%;
}

.nav-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    cursor: pointer;
    transition: var(--transition-fast);
    font-size: 0.85rem;
    font-weight: 500;
    padding: 2px 0;
    gap: 4px;
}

.nav-btn i {
    font-size: 1.2rem;
}

.nav-btn:hover {
    color: var(--accent-primary);
}

.nav-btn:active {
    transform: translateY(1px);
}

.clear-btn:hover {
    opacity: 1;
}

/* Range Controls */
.range-controls {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.quick-ranges {
    display: flex;
    gap: var(--spacing-xs);
    background: var(--bg-secondary);
    padding: 4px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    width: fit-content;
}

.range-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 0.4rem 0.8rem;
    font-size: 0.8rem;
    font-weight: 500;
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
}

.range-btn:hover {
    color: var(--text-primary);
}

.range-btn.active {
    background: var(--bg-card);
    color: var(--text-primary);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

.date-inputs {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.date-input {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 0.4rem 0.6rem;
    color: var(--text-secondary);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.8rem;
}

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

/* Controls Redesign - Single Line */
.controls-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    display: flex;
    align-items: center;
    /* Vertically align all groups */
    gap: var(--spacing-xl);
    flex-wrap: wrap;
}

/* Ensure Metrics push right just in case, or naturally flow */
.metrics-container {
    display: flex;
    gap: var(--spacing-xl);
    margin-left: auto;
    /* Push metrics to right if space permits */
}

.group-label {
    display: block;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    margin-bottom: var(--spacing-sm);
}

/* Metrics Section */
.metrics-container {
    display: flex;
    gap: var(--spacing-xl);
    flex-wrap: wrap;
}

.metric-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.metric-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 500;
}

.pills {
    display: flex;
    gap: 8px;
}

/* Pill Buttons */
.metric-pill {
    position: relative;
    padding: 8px 16px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    user-select: none;
    min-width: 80px;
}

.metric-pill input {
    display: none;
}

.metric-pill:hover {
    border-color: var(--text-muted);
    background: var(--bg-hover);
    color: var(--text-primary);
}

/* Active Pill States */
.metric-pill:has(input:checked) {
    background: rgba(255, 255, 255, 0.03);
    border-color: currentColor;
    box-shadow: 0 0 15px -3px currentColor;
}

.iv-pill:has(input:checked) {
    color: var(--iv-30d-color);
    border-color: var(--iv-30d-color);
}

/* Specific IV colors if needed, but using 30d color for general IV glow for simplicity, or: */
.iv-pill:has(input[id*="7d"]:checked) {
    color: var(--iv-7d-color);
    border-color: var(--iv-7d-color);
}

.iv-pill:has(input[id*="30d"]:checked) {
    color: var(--iv-30d-color);
    border-color: var(--iv-30d-color);
}

.rv-pill:has(input[id*="7d"]:checked) {
    color: var(--rv-7d-color);
    border-color: var(--rv-7d-color);
}

.rv-pill:has(input[id*="30d"]:checked) {
    color: var(--rv-30d-color);
    border-color: var(--rv-30d-color);
}


/* Analysis / Offset Toggle */
.analysis-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.offset-toggle {
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
    background: var(--bg-secondary);
    padding: 6px 12px 6px 6px;
    border: 1px solid var(--border-color);
    border-radius: 99px;
    transition: var(--transition-fast);
    user-select: none;
    height: 40px;
    /* match pill height ish */
}

.offset-toggle:hover {
    border-color: var(--text-muted);
}

.offset-toggle input {
    display: none;
}

.offset-track {
    width: 36px;
    height: 20px;
    background: var(--bg-card);
    border-radius: 99px;
    position: relative;
    transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid var(--border-color);
}

.offset-knob {
    position: absolute;
    top: 2px;
    left: 2px;
    width: 14px;
    height: 14px;
    background: var(--text-muted);
    border-radius: 50%;
    transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.offset-toggle input:checked+.offset-track {
    background: rgba(234, 179, 8, 0.15);
    border-color: var(--accent-primary);
}

.offset-toggle input:checked+.offset-track .offset-knob {
    background: var(--accent-primary);
    transform: translateX(16px);
}

.offset-text {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.offset-toggle input:checked~.offset-text {
    color: var(--text-primary);
}

/* Chart */
.chart-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    min-height: 500px;
}

.chart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
}

.chart-header h2 {
    font-size: 1.25rem;
    font-weight: 500;
}

.chart-container {
    height: 400px;
    position: relative;
    width: 100%;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: var(--spacing-md);
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    transition: var(--transition-normal);
}

.stat-card:hover {
    border-color: var(--bg-hover);
    transform: translateY(-2px);
}

.stat-label {
    font-size: 0.7rem;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: var(--spacing-xs);
}

.stat-value {
    font-size: 1.25rem;
    font-weight: 600;
    font-family: 'JetBrains Mono', monospace;
    color: var(--text-primary);
}

.stat-value.iv-color {
    color: var(--iv-30d-color);
}

.stat-value.rv-color {
    color: var(--rv-30d-color);
}

/* Table */
.table-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
}

.table-header {
    margin-bottom: var(--spacing-md);
}

.table-header h2 {
    font-size: 1.25rem;
    font-weight: 500;
}

.table-subtitle {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.table-container {
    overflow-x: auto;
}

#volatility-table {
    width: 100%;
    border-collapse: collapse;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.85rem;
}

#volatility-table th {
    text-align: left;
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    color: var(--text-secondary);
    font-weight: 500;
    font-family: 'Outfit', sans-serif;
    cursor: pointer;
    user-select: none;
    white-space: nowrap;
}

#volatility-table th:hover {
    color: var(--text-primary);
}

#volatility-table td {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
    color: var(--text-secondary);
}

#volatility-table tr:last-child td {
    border-bottom: none;
}

#volatility-table tr:hover td {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.symbol-cell {
    font-weight: 600;
    color: var(--text-primary) !important;
}

.iv-cell {
    color: var(--iv-30d-color) !important;
}

.rv-cell {
    color: var(--rv-30d-color) !important;
}

.spread-cell.positive {
    color: #10b981 !important;
}

.spread-cell.negative {
    color: #ef4444 !important;
}

/* Footer */
.footer {
    border-top: 1px solid var(--border-color);
    padding-top: var(--spacing-lg);
    margin-top: auto;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    color: var(--text-muted);
    font-size: 0.8rem;
}

.footer-info {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
}

.bullet {
    opacity: 0.3;
}

/* No Data */
.no-data {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    color: var(--text-muted);
}

.no-data-icon {
    font-size: 3rem;
    opacity: 0.2;
}

.no-data.hidden {
    display: none;
}

/* Responsive */
@media (max-width: 1024px) {
    .controls-card {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .controls-card {
        display: flex;
        flex-direction: column;
        gap: var(--spacing-lg);
    }

    .footer-content {
        flex-direction: column;
        align-items: center;
        gap: var(--spacing-sm);
    }

    .quick-ranges {
        width: 100%;
        overflow-x: auto;
    }
}
/* MA Indicator */
.ma-indicator {
    display: inline-block;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: var(--text-muted);
    box-shadow: 0 0 5px rgba(0, 0, 0, 0.5);
}

.ma-indicator.green {
    background-color: #10b981;
    box-shadow: 0 0 8px #10b981;
}

.ma-indicator.red {
    background-color: #ef4444;
    box-shadow: 0 0 8px #ef4444;
}

.ma-indicator.gray {
    background-color: var(--bg-hover);
    box-shadow: none;
    border: 1px solid var(--border-color);
}