/* OSUIT Trends Dashboard - Design System */

/* ============================================
   CSS Custom Properties (Design Tokens)
   ============================================ */
:root {
    /* Spacing scale (8px base) */
    --space-xs: 0.25rem;   /* 4px */
    --space-sm: 0.5rem;    /* 8px */
    --space-md: 1rem;      /* 16px */
    --space-lg: 1.5rem;    /* 24px */
    --space-xl: 2rem;      /* 32px */
    --space-2xl: 3rem;     /* 48px */

    /* Oklahoma State University Brand Colors */
    --osu-orange: #FF6600;          /* America's Brightest Orange - use sparingly */
    --osu-black: #000000;
    --osu-teal: #007A7A;            /* Secondary accent */
    --osu-teal-light: #009999;
    --osu-cream: #FDF6E3;           /* Warm background accent */

    /* Derived palette - sophisticated, muted takes */
    --color-primary: #1A1A1A;       /* Near black for authority */
    --color-primary-light: #2D2D2D;
    --color-primary-dark: #0D0D0D;
    --color-accent: var(--osu-orange);
    --color-accent-muted: #E85D00;  /* Slightly darker orange for text */
    --color-teal: var(--osu-teal);
    --color-teal-light: #E6F3F3;    /* Very light teal for subtle backgrounds */

    /* Neutrals - warm-shifted to complement orange */
    --color-bg: #FAFAFA;
    --color-surface: #FFFFFF;
    --color-border: #E5E5E5;
    --color-border-light: #F0F0F0;
    --color-text: #1A1A1A;
    --color-text-muted: #666666;
    --color-text-light: #999999;

    /* Shadows - slightly warmer */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.08);
    --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);

    /* Border radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;

    /* Typography */
    --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
}

/* ============================================
   Base Styles
   ============================================ */
body {
    font-family: var(--font-family);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.5;
}

/* ============================================
   Sidebar
   ============================================ */
.sidebar {
    background: linear-gradient(180deg, #1A1A1A 0%, #0D0D0D 100%);
    color: white;
    border-right: none;
}

.sidebar-brand {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: white;
    letter-spacing: -0.025em;
    padding: var(--space-lg) var(--space-md);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    margin-bottom: var(--space-md);
}

/* Subtle orange accent line under brand */
.sidebar-brand::after {
    content: '';
    display: block;
    width: 40px;
    height: 2px;
    background: var(--osu-orange);
    margin-top: var(--space-sm);
    border-radius: 1px;
}

.sidebar-section {
    padding: var(--space-sm) var(--space-md);
    margin-bottom: var(--space-sm);
}

.sidebar-section-title {
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: var(--space-sm);
}

/* Navigation in sidebar */
.sidebar .nav-pills .nav-link {
    color: rgba(255, 255, 255, 0.8);
    border-radius: var(--radius-sm);
    padding: var(--space-sm) var(--space-md);
    margin-bottom: var(--space-xs);
    font-weight: 500;
    transition: all 0.15s ease;
}

.sidebar .nav-pills .nav-link:hover {
    color: white;
    background-color: rgba(255, 255, 255, 0.1);
}

.sidebar .nav-pills .nav-link.active {
    color: #0D0D0D;
    background-color: white;
    font-weight: 600;
    box-shadow: var(--shadow-sm);
    border-left: 3px solid var(--osu-orange);
}

/* Sidebar checkboxes */
.sidebar .form-check {
    margin-bottom: var(--space-xs);
}

.sidebar .form-check-label {
    color: rgba(255, 255, 255, 0.9);
    font-size: var(--font-size-sm);
}

.sidebar .form-check-input {
    background-color: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.3);
}

.sidebar .form-check-input:checked {
    background-color: var(--osu-teal);
    border-color: var(--osu-teal);
}

/* Inline term checkboxes */
.sidebar .term-checks {
    display: flex;
    gap: var(--space-sm);
    padding-left: var(--space-lg);
    margin-top: var(--space-xs);
}

.sidebar .term-checks .form-check {
    margin-bottom: 0;
}

.sidebar .term-checks .form-check-label {
    font-size: var(--font-size-xs);
    color: rgba(255, 255, 255, 0.7);
}

/* Sidebar divider */
.sidebar hr {
    border-color: rgba(255, 255, 255, 0.08);
    margin: var(--space-md) 0;
}

/* Reset button in sidebar */
.sidebar .btn-reset {
    background-color: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: white;
    font-size: var(--font-size-sm);
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-sm);
    width: 100%;
    transition: all 0.15s ease;
}

.sidebar .btn-reset:hover {
    background-color: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.3);
    color: white;
}

/* ============================================
   Main Content Area
   ============================================ */
.main-content {
    background-color: var(--color-bg);
    min-height: 100vh;
}

/* Page header */
.page-header {
    margin-bottom: var(--space-xl);
}

.page-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--color-text);
    margin: 0;
    letter-spacing: -0.025em;
}

.page-subtitle {
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
    margin-top: var(--space-xs);
}

/* ============================================
   KPI Cards
   ============================================ */
.kpi-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
    padding: var(--space-lg);
    text-align: center;
    transition: all 0.2s ease;
    position: relative;
    overflow: hidden;
}

.kpi-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--color-border-light);
}

.kpi-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
}

.kpi-card--primary::before {
    background: var(--osu-orange);
}

.kpi-card--accent::before {
    background: var(--osu-teal);
}

.kpi-card--success::before {
    background: var(--osu-teal-light);
}

.kpi-card--info::before {
    background: #666666;
}

.kpi-label {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.025em;
    margin-bottom: var(--space-sm);
}

.kpi-value {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--color-text);
    line-height: 1.1;
    margin: 0;
}

.kpi-card--primary .kpi-value {
    color: var(--color-accent-muted);
}

/* ============================================
   Control Bar (Metric toggles, dropdowns)
   ============================================ */
.control-bar {
    background: var(--color-surface);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-md);
    padding: var(--space-md) var(--space-lg);
    margin-bottom: var(--space-lg);
    box-shadow: var(--shadow-sm);
}

.control-label {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-text-muted);
    margin-right: var(--space-md);
}

/* Control group with header label */
.control-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.control-header {
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-muted);
}

.years-display {
    padding: 0.4rem 0;
}

/* Segmented control styling for radio buttons */
.metric-toggle {
    display: inline-flex;
    background: var(--color-border-light);
    border-radius: var(--radius-sm);
    padding: 3px;
    gap: 2px;
}

.metric-toggle .form-check {
    margin: 0;
}

.metric-toggle .form-check-input {
    display: none;
}

.metric-toggle .form-check-label {
    display: block;
    padding: 0.4rem 0.9rem;
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-text-muted);
    border-radius: calc(var(--radius-sm) - 2px);
    cursor: pointer;
    transition: all 0.15s ease;
    white-space: nowrap;
}

.metric-toggle .form-check-label:hover {
    color: var(--color-text);
}

.metric-toggle .form-check-input:checked + .form-check-label {
    background: var(--color-surface);
    color: var(--color-text);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

/* Select dropdown */
.control-bar .form-select {
    font-size: var(--font-size-sm);
    border-color: var(--color-border);
    border-radius: var(--radius-sm);
    padding: var(--space-sm) var(--space-md);
}

.control-bar .form-select:focus {
    border-color: var(--osu-teal);
    box-shadow: 0 0 0 2px rgba(0, 122, 122, 0.15);
}

/* ============================================
   Chart Containers
   ============================================ */
.chart-container {
    background: var(--color-surface);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
    padding: var(--space-md);
    margin-bottom: var(--space-lg);
}

.chart-container--full {
    padding: var(--space-lg);
}

/* Remove default card styling from Dash graphs */
.chart-container .js-plotly-plot {
    border-radius: var(--radius-md);
}

/* ============================================
   Breakdown Page Layout
   ============================================ */
.breakdown-grid {
    display: grid;
    grid-template-columns: 1fr 1fr 1.5fr;
    gap: var(--space-lg);
    align-items: start;  /* Top-align all chart containers */
}

@media (max-width: 1200px) {
    .breakdown-grid {
        grid-template-columns: 1fr 1fr;
    }

    .breakdown-grid > *:nth-child(3) {
        grid-column: span 2;
    }
}

@media (max-width: 768px) {
    .breakdown-grid {
        grid-template-columns: 1fr;
    }

    .breakdown-grid > *:nth-child(3) {
        grid-column: span 1;
    }
}

/* ============================================
   Data Tables (AG Grid)
   ============================================ */
.table-container {
    background: var(--color-surface);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
    padding: var(--space-lg);
    margin-top: var(--space-lg);
}

.table-section-title {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--color-text);
}

.btn-export {
    background-color: var(--osu-teal);
    border-color: var(--osu-teal);
    color: white;
    font-size: var(--font-size-sm);
    font-weight: 500;
    padding: 0.35rem 0.75rem;
    transition: all 0.15s ease;
}

.btn-export:hover {
    background-color: var(--osu-teal-light);
    border-color: var(--osu-teal-light);
    color: white;
}

/* AG Grid theme overrides for OSU aesthetic */
.ag-theme-alpine {
    --ag-font-family: var(--font-family);
    --ag-font-size: 13px;
    --ag-foreground-color: var(--color-text);
    --ag-header-foreground-color: var(--color-text);
    --ag-header-background-color: var(--color-border-light);
    --ag-odd-row-background-color: #FAFAFA;
    --ag-row-hover-color: var(--color-teal-light);
    --ag-selected-row-background-color: rgba(0, 122, 122, 0.1);
    --ag-border-color: var(--color-border);
    --ag-header-column-separator-color: var(--color-border);
    --ag-row-border-color: var(--color-border-light);
    --ag-alpine-active-color: var(--osu-teal);
    --ag-range-selection-border-color: var(--osu-teal);
    --ag-input-focus-border-color: var(--osu-teal);
    border: none !important;
    border-radius: var(--radius-md);
    overflow: hidden;
}

.ag-theme-alpine .ag-header {
    border-bottom: 2px solid var(--color-border);
}

.ag-theme-alpine .ag-header-cell {
    font-weight: 600;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.025em;
}

.ag-theme-alpine .ag-cell {
    display: flex;
    align-items: center;
}

.ag-theme-alpine .ag-row {
    border-bottom: 1px solid var(--color-border-light);
}

.ag-theme-alpine .ag-row:last-child {
    border-bottom: none;
}

/* Pinned column styling */
.ag-theme-alpine .ag-pinned-left-header,
.ag-theme-alpine .ag-pinned-left-cols-container {
    border-right: 2px solid var(--color-border);
}

/* ============================================
   Plotly Chart Overrides
   ============================================ */
/* Modebar positioning */
.js-plotly-plot .plotly .modebar {
    right: var(--space-sm) !important;
    top: var(--space-sm) !important;
}

.js-plotly-plot .plotly .modebar-btn {
    font-size: 14px !important;
}

/* Remove plotly logo */
.js-plotly-plot .plotly .modebar-group:last-child {
    display: none;
}

/* ============================================
   Bootstrap Overrides
   ============================================ */
/* Override card defaults */
.card {
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
}

.card-body {
    padding: var(--space-lg);
}

/* Override default shadows */
.shadow-sm {
    box-shadow: var(--shadow-sm) !important;
}

.shadow {
    box-shadow: var(--shadow-md) !important;
}

.shadow-lg {
    box-shadow: var(--shadow-lg) !important;
}

/* ============================================
   Utility Classes
   ============================================ */
.text-primary-dark {
    color: var(--color-primary-dark) !important;
}

.bg-surface {
    background-color: var(--color-surface) !important;
}

.rounded-lg {
    border-radius: var(--radius-lg) !important;
}

/* Spacing utilities using our scale */
.gap-md {
    gap: var(--space-md);
}

.gap-lg {
    gap: var(--space-lg);
}