/* Variables */
:root {
    --background: 220 20% 8%;
    --foreground: 40 100% 95%;

    --card: 220 18% 12%;
    --card-foreground: 40 100% 95%;

    --popover: 220 18% 12%;
    --popover-foreground: 40 100% 95%;

    --primary: 45 90% 60%;
    --primary-foreground: 220 20% 8%;

    --secondary: 220 15% 20%;
    --secondary-foreground: 40 100% 95%;

    --muted: 220 15% 18%;
    --muted-foreground: 40 20% 65%;

    --accent: 168 76% 42%;
    --accent-foreground: 0 0% 100%;

    --destructive: 0 72% 51%;
    --destructive-foreground: 0 0% 100%;

    --border: 220 15% 22%;
    --input: 220 15% 22%;
    --ring: 45 90% 60%;

    --data-low: 168 76% 42%;
    --data-mid: 45 90% 60%;
    --data-high: 0 72% 51%;
    --chart-primary: 45 90% 60%;
    --chart-secondary: 168 76% 42%;
    --chart-accent: 270 70% 60%;

    --sidebar-background: 220 20% 8%;
    --sidebar-foreground: 40 100% 95%;
    --sidebar-primary: 45 90% 60%;
    --sidebar-primary-foreground: 220 20% 8%;
    --sidebar-accent: 220 15% 20%;
    --sidebar-accent-foreground: 40 100% 95%;
    --sidebar-border: 220 15% 22%;
    --sidebar-ring: 45 90% 60%;

    --primary-soft: 45 95% 70%;
}

/* Base */
html,
body {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    overflow-x: hidden;
    font-family: "Inter", -apple-system, system-ui, "Helvetica Neue", Arial, sans-serif;
    background: radial-gradient(circle at top,
            hsl(var(--background)) 0%,
            hsl(var(--secondary)) 55%,
            hsl(var(--background)) 100%);
    color: hsl(var(--foreground));
}

/* Header */
.page-header {
    background: hsl(var(--background));
    border-bottom: 1px solid hsl(var(--border));
    color: hsl(var(--foreground));
    padding: 2px 0;
}

.page-title {
    font-size: 2rem;
    line-height: 1.05;
    font-weight: 800;
    margin-bottom: 0.12rem;
    text-align: center;
}

.page-header .subtitle {
    font-size: 0.8rem;
    color: hsl(var(--muted-foreground));
}

.page-title span {
    display: block;
}

.page-title .title-main {
    color: hsl(var(--foreground));
}

.page-title .title-sub {
    color: hsl(var(--primary));
    letter-spacing: 0.03em;
}

.page-header a {
    color: hsl(var(--primary));
}

.page-header a:hover {
    color: hsl(var(--primary-soft));
}

/* Layout */
#visualization {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    padding: 18px;
}

#viz-wrapper {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 24px;
    width: 100%;
    max-width: 1320px;
    margin: 0 auto;
    align-items: stretch;
}

#map-container {
    border-radius: 22px;
    background: radial-gradient(circle at top left,
            hsl(var(--card)) 0%,
            hsl(var(--background)) 55%,
            hsl(var(--background)) 100%);
    box-shadow:
        0 22px 60px hsla(220 40% 2% / 0.9),
        0 0 0 1px hsla(220 40% 4% / 0.9);
    padding: 14px;
    display: flex;
    flex-direction: column;
}

#map {
    flex: 1;
    border-radius: 18px;
    overflow: hidden;
}

#charts-container {
    display: grid;
    grid-template-rows: 1fr 1fr;
    height: 62vh;
    gap: 16px;
    overflow: visible;
}

#linechart,
#barchart {
    width: 100%;
    min-height: 0;
    height: 100%;
    overflow: visible;

    background: radial-gradient(circle at top left,
            hsl(var(--card)) 0%,
            hsl(var(--background)) 60%,
            hsl(var(--background)) 100%);
    border-radius: 24px;
    border: 1px solid hsl(var(--border));
    box-shadow:
        0 20px 55px hsla(220 40% 2% / 0.95),
        0 0 0 1px hsla(220 40% 6% / 0.9) inset;

    padding: 14px 16px 12px 16px;
    display: flex;
    flex-direction: column;
    position: relative;
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    transition: box-shadow 160ms ease-out, transform 160ms ease-out, border-color 160ms ease-out;
}

#linechart:hover,
#barchart:hover {
    transform: translateY(-2px);
    box-shadow:
        0 26px 70px hsla(220 40% 2% / 1),
        0 0 0 1px hsla(var(--ring) / 0.45) inset;
    border-color: hsl(var(--ring));
}

#linechart svg,
#barchart svg {
    width: 100%;
    height: 100%;
    overflow: visible;
}

.chart-no-data {
    font-size: 14px;
    fill: hsl(var(--muted-foreground));
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.x-axis path,
.y-axis path,
.x-axis line,
.y-axis line {
    stroke: hsl(var(--muted-foreground) / 0.7);
}

.x-axis text,
.y-axis text {
    fill: hsl(var(--muted-foreground));
    font-size: 11px;
}

.mean-line {
    stroke: hsl(var(--data-mid));
    stroke-width: 2;
    stroke-dasharray: 4, 4;
}

.national-comparison-line {
    stroke: hsl(var(--data-low));
    stroke-width: 2;
    stroke-dasharray: 4, 4;
}

.legend-title {
    font-weight: 600;
    font-size: 12px;
    margin-bottom: 4px;
    color: hsl(var(--muted-foreground));
}

.legend-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 4px;
}

.legend-swatch {
    width: 14px;
    height: 14px;
    border-radius: 4px;
    border: 1px solid hsl(var(--border));
}

.legend-label {
    font-size: 11px;
    color: hsl(var(--card-foreground));
}

/* Controls */
#reset-focus {
    position: fixed;
    top: 120px;
    left: 100px;
    z-index: 3000;

    background: hsl(var(--secondary));
    color: hsl(var(--secondary-foreground));
    padding: 8px 16px 8px 12px;
    border-radius: 999px;
    border: 1px solid hsl(var(--border));

    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-weight: 500;
    font-size: 0.85rem;

    box-shadow: 0 18px 40px hsla(220 40% 2% / 0.9);
    transition: transform 140ms ease-out, box-shadow 140ms ease-out, border-color 140ms ease-out,
        background 140ms ease-out;

    opacity: 0;
    pointer-events: none;
}

#reset-focus::before {
    content: "";
    width: 24px;
    height: 24px;
    border-radius: 999px;
    background: radial-gradient(circle at 30% 30%,
            hsl(var(--primary)) 0%,
            hsl(var(--primary-soft)) 45%,
            hsl(var(--primary)) 100%);
    display: inline-block;
}

#reset-focus.visible {
    opacity: 1;
    pointer-events: auto;
}

#reset-focus:hover {
    transform: translateY(-1px);
    border-color: hsl(var(--ring));
    box-shadow: 0 22px 50px hsla(220 40% 2% / 1);
    background: hsl(var(--secondary));
}

#reset-focus:active {
    transform: translateY(0);
    box-shadow: 0 12px 24px hsla(220 40% 2% / 0.9);
}

#timeline-container {
    width: 100%;
    max-width: 1320px;
}

@media (max-width: 992px) {
    #viz-wrapper {
        grid-template-columns: 1fr;
    }

    #map-container {
        order: -1;
    }

    #map {
        height: 50vh;
        min-height: 320px;
    }

    #charts-container {
        height: auto;
    }

    #filter-bar {
        flex-direction: column;
        align-items: center;
    }
}

.btn-outline-warning {
    color: hsl(45, 90%, 60%);
    border-color: hsl(45, 90%, 60%);
}

.btn-outline-warning:hover,
.btn-outline-warning:checked {
    background-color: hsl(45, 90%, 60%);
    border-color: hsl(45, 90%, 60%);
}

.btn-warning {
    background-color: hsl(45, 90%, 60%);
    border-color: hsl(45, 90%, 60%);
}

/* Overlays */
.intro-overlay {
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.82);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 4000;
}

.intro-overlay.visible {
    display: flex;
}

.intro-card {
    max-width: 520px;
    width: 90%;
    background: hsl(var(--card));
    color: hsl(var(--card-foreground));
    border-radius: 20px;
    padding: 22px 22px 20px;
    box-shadow:
        0 24px 60px rgba(0, 0, 0, 0.9),
        0 0 0 1px hsl(var(--border));
    position: relative;
}

.intro-close {
    position: absolute;
    top: 12px;
    right: 12px;
    width: 28px;
    height: 28px;
    border-radius: 999px;
    border: 1px solid hsl(var(--border));
    background: hsl(var(--secondary));
    color: hsl(var(--secondary-foreground));
    cursor: pointer;
    font-size: 0.85rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.intro-tag {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.16em;
    color: hsl(var(--muted-foreground));
    margin: 4px 0 6px;
}

.intro-title {
    margin: 0 0 10px;
    font-size: 1.3rem;
    font-weight: 700;
}

.intro-list {
    margin: 0 0 16px;
    padding-left: 1.2rem;
    font-size: 0.95rem;
    color: hsl(var(--muted-foreground));
}

.intro-list li+li {
    margin-top: 6px;
}

.intro-list strong {
    color: hsl(var(--foreground));
}

.intro-pill {
    display: inline-flex;
    align-items: center;
    padding: 0.05rem 0.55rem;
    border-radius: 999px;
    background: hsla(var(--primary) / 0.12);
    color: hsl(var(--primary));
    font-size: 0.8rem;
    font-weight: 500;
}

.intro-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 8px 18px;
    border-radius: 999px;
    border: none;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.9rem;
    background: hsl(var(--primary));
    color: hsl(var(--primary-foreground));
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.7);
    transition: transform 0.12s ease-out, box-shadow 0.12s ease-out,
        background-color 0.12s ease-out;
}

.intro-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.8);
}

.intro-primary:active {
    transform: translateY(0);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.7);
}

.instructions-button {
    border: 1px solid hsl(var(--border));
    background: hsl(var(--secondary));
    color: hsl(var(--secondary-foreground));
    padding: 6px 14px;
    border-radius: 999px;
    font-size: 0.80rem;
    font-weight: 500;
    cursor: pointer;
    margin-top: 6px;

    transition:
        background-color 0.15s ease-out,
        border-color 0.15s ease-out,
        transform 0.1s ease-out,
        box-shadow 0.1s ease-out;
    box-shadow: 0 8px 18px rgba(0, 0, 0, 0.6);
}

.instructions-button:hover {
    background: hsl(var(--secondary));
    border-color: hsl(var(--ring));
    transform: translateY(-1px);
    box-shadow: 0 12px 26px rgba(0, 0, 0, 0.75);
}

.instructions-button:active {
    transform: translateY(0);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.7);
}

.header-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    flex-wrap: wrap;
}

.header-link {
    text-decoration: none;
    font-size: 0.95rem;
    color: white;
}

.instructions-button {
    margin-top: 0;
}

.help-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    border: 1px solid hsl(45, 90%, 60%);
    background: #fffef7;
    color: hsl(45, 90%, 35%);
    font-size: 12px;
    font-weight: bold;
    cursor: default;
    transition: background 0.2s;
    position: relative;
}

.help-icon:hover {
    background: #fff9e5;
}

/* Tooltips */
.help-box {
    position: absolute;
    top: 38px;
    left: 40px;
    width: 240px;
    background: #fff;
    color: #333;
    border: 1px solid hsl(45, 90%, 70%);
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    padding: 10px 12px;
    font-size: 13px;
    line-height: 1.4;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-4px);
    transition: opacity 0.2s ease, transform 0.2s ease;
    z-index: 9999;
}

.help-icon:hover+.help-box {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}