/* ---------- Design tokens ---------- */
:root {
    --stone-black: #14110c;
    --stone-panel: #221c14;
    --stone-panel-2: #2b2318;
    --stone-line: #3a3122;
    --parchment: #e9dfc6;
    --parchment-dim: #b6a988;
    --ember: #e2933c;
    --ember-bright: #f4b463;
    --ember-glow: rgba(226, 147, 60, 0.55);
    --moss: #7fa06e;
    --warn-red: #a1544a;

    --font-display: "IM Fell English", Georgia, serif;
    --font-mono: "IBM Plex Mono", ui-monospace, monospace;

    --radius: 3px;
}

* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    padding: 0;
    background: var(--stone-black);
    color: var(--parchment);
    font-family: var(--font-mono);
    min-height: 100vh;
}

body {
    background-image:
        radial-gradient(
            ellipse at 20% 0%,
            rgba(226, 147, 60, 0.07),
            transparent 55%
        ),
        radial-gradient(
            ellipse at 80% 100%,
            rgba(127, 160, 110, 0.05),
            transparent 55%
        );
}

a {
    color: var(--ember);
}
a:focus-visible,
button:focus-visible,
[tabindex]:focus-visible {
    outline: 2px solid var(--ember-bright);
    outline-offset: 2px;
}

/* ---------- Header ---------- */
.site-header {
    text-align: center;
    padding: 2.5rem 1rem 1.5rem;
    border-bottom: 1px solid var(--stone-line);
}

.wordmark {
    font-family: var(--font-display);
    font-size: clamp(2.4rem, 6vw, 3.6rem);
    letter-spacing: 0.02em;
    margin: 0;
    color: var(--parchment);
    text-shadow: 0 0 24px var(--ember-glow);
}

.tagline {
    margin: 0.35rem 0 0.9rem;
    color: var(--parchment-dim);
    font-size: 0.85rem;
    font-style: italic;
    font-family: var(--font-display);
    letter-spacing: 0.02em;
}

.repo-link {
    display: inline-block;
    font-size: 0.72rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    text-decoration: none;
    border: 1px solid var(--stone-line);
    padding: 0.4rem 0.8rem;
    border-radius: var(--radius);
    color: var(--parchment-dim);
    transition:
        border-color 0.15s ease,
        color 0.15s ease;
}
.repo-link:hover {
    border-color: var(--ember);
    color: var(--ember-bright);
}

/* ---------- Layout ---------- */
.layout {
    display: grid;
    grid-template-columns: 1.4fr 1fr;
    min-height: 60vh;
}

@media (max-width: 880px) {
    .layout {
        grid-template-columns: 1fr;
    }
}

.map-pane {
    position: relative;
    border-right: 1px solid var(--stone-line);
    padding: 1rem;
    min-height: 420px;
}
@media (max-width: 880px) {
    .map-pane {
        border-right: none;
        border-bottom: 1px solid var(--stone-line);
        min-height: 340px;
    }
}

#map-svg {
    width: 100%;
    height: 100%;
    min-height: 380px;
    display: block;
}

.map-hint {
    position: absolute;
    bottom: 0.75rem;
    left: 1rem;
    margin: 0;
    font-size: 0.7rem;
    color: var(--parchment-dim);
    letter-spacing: 0.03em;
}

/* ---------- Map elements (drawn by app.js) ---------- */
.passage {
    fill: none;
    stroke: var(--stone-line);
    stroke-width: 2;
}
.passage.locked {
    stroke: var(--warn-red);
    stroke-dasharray: 3 6;
    opacity: 0.6;
}

.torch-glow {
    fill: var(--ember);
    opacity: 0.35;
    filter: blur(6px);
}
@media (prefers-reduced-motion: no-preference) {
    .torch-glow {
        animation: flicker 3.2s ease-in-out infinite;
    }
}
@keyframes flicker {
    0%,
    100% {
        opacity: 0.3;
    }
    40% {
        opacity: 0.45;
    }
    55% {
        opacity: 0.25;
    }
    70% {
        opacity: 0.4;
    }
}

.node-circle {
    fill: var(--stone-panel-2);
    stroke: var(--ember);
    stroke-width: 1.5;
    cursor: pointer;
    transition:
        fill 0.15s ease,
        stroke 0.15s ease;
}
.node-group:hover .node-circle,
.node-group:focus-visible .node-circle {
    fill: var(--stone-line);
}

.node-group.selected .node-circle {
    fill: var(--ember);
    stroke: var(--ember-bright);
}
.node-group.selected .node-label {
    fill: var(--stone-black);
    font-weight: 600;
}

.node-label {
    fill: var(--parchment);
    font-family: var(--font-mono);
    font-size: 9px;
    text-anchor: middle;
    pointer-events: none;
}

.node-group.ghost .node-circle {
    fill: transparent;
    stroke: var(--warn-red);
    stroke-dasharray: 2 3;
}
.node-group.ghost .node-label {
    fill: var(--warn-red);
}

/* ---------- Detail pane ---------- */
.detail-pane {
    padding: 1.5rem;
    overflow-y: auto;
}

.room-card .room-id {
    display: block;
    font-size: 0.68rem;
    letter-spacing: 0.08em;
    color: var(--parchment-dim);
    text-transform: uppercase;
    margin-bottom: 0.35rem;
}

.room-card h2 {
    font-family: var(--font-display);
    font-size: 1.9rem;
    margin: 0 0 0.6rem;
    color: var(--ember-bright);
}

.room-art {
    background: var(--stone-panel);
    border: 1px solid var(--stone-line);
    border-radius: var(--radius);
    padding: 0.9rem 1rem;
    margin-bottom: 1rem;
    overflow-x: auto;
}
.room-art pre {
    margin: 0;
    color: var(--ember);
    font-size: 0.78rem;
    line-height: 1.25;
    white-space: pre;
}
.room-art img {
    max-width: 100%;
    display: block;
    border-radius: var(--radius);
}

.room-description {
    line-height: 1.6;
    color: var(--parchment);
    margin-bottom: 1.1rem;
    font-size: 0.92rem;
}

.room-section {
    margin-bottom: 1.1rem;
}
.room-section h3 {
    font-size: 0.68rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--moss);
    margin: 0 0 0.4rem;
}

.pill-row {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
}
.pill {
    font-size: 0.75rem;
    border: 1px solid var(--stone-line);
    padding: 0.25rem 0.6rem;
    border-radius: 999px;
    background: var(--stone-panel);
    color: var(--parchment-dim);
}

.exit-btn {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    border: 1px solid var(--ember);
    color: var(--ember-bright);
    background: transparent;
    padding: 0.3rem 0.7rem;
    border-radius: 999px;
    cursor: pointer;
}
.exit-btn:hover {
    background: var(--ember);
    color: var(--stone-black);
}
.exit-btn.locked {
    border-color: var(--warn-red);
    color: var(--warn-red);
    cursor: default;
}
.exit-btn.locked:hover {
    background: transparent;
    color: var(--warn-red);
}

.monster-box {
    border-left: 2px solid var(--warn-red);
    padding-left: 0.7rem;
    font-size: 0.85rem;
    color: var(--parchment-dim);
}
.monster-box strong {
    color: var(--warn-red);
}

.puzzle-box {
    border-left: 2px solid var(--moss);
    padding-left: 0.7rem;
}
.puzzle-box h3 {
    color: var(--moss);
}
.puzzle-desc {
    font-size: 0.85rem;
    color: var(--parchment-dim);
    margin: 0 0 0.4rem;
}
.puzzle-question {
    font-size: 0.85rem;
    color: var(--parchment);
    margin: 0 0 0.4rem;
}
.puzzle-success {
    font-size: 0.78rem;
    color: var(--moss);
    margin: 0;
}

.easter-egg {
    font-size: 0.78rem;
    color: var(--parchment-dim);
    font-style: italic;
}

.empty-state {
    color: var(--parchment-dim);
    font-size: 0.85rem;
    padding-top: 2rem;
}

/* ---------- Footer ---------- */
.site-footer {
    text-align: center;
    padding: 1rem;
    font-size: 0.72rem;
    color: var(--parchment-dim);
    border-top: 1px solid var(--stone-line);
}
.site-footer .divider {
    margin: 0 0.5rem;
}