/* DIRquake — restyled to match the subtle C64GFX look with a light blue tint.
   Design tokens mirror C64GFX's common.css :root, shifted a few points toward
   blue, with a blue accent in place of C64GFX's gold. The authentic C64 colours
   used by the canvas renderer (border #6d6cbc, screen #343383, the PEPTO palette
   in c64-directory-renderer.js) are intentionally NOT touched here. */

:root {
    color-scheme: dark;

    --color-bg-primary: #2a2d33;
    --color-bg-card: #20242c;
    --color-bg-elevated: #313742;
    --color-bg-header: #15171c;
    --color-bg-input: #20242c;
    --color-border: #39414f;

    --color-text-primary: #ffffff;
    --color-text-secondary: #c2c7d0;
    --color-text-muted: #9aa3b2;

    --color-accent: #4da3ff;
    --color-link: #6cc0ff;
    --color-action-primary: #2f80ed;
    --color-action-primary-hover: #2566c4;
    --color-error: #e0555f;
    --color-marker: #f0995a;

    /* RGB channels for translucent on-surface borders/fills. */
    --color-overlay-rgb: 255, 255, 255;

    --radius-sm: 4px;
    --radius-md: 6px;
    --radius-lg: 10px;

    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.25);
    --shadow-md: 0 6px 20px rgba(0, 0, 0, 0.35);

    --font-ui: 'Montserrat', -apple-system, system-ui, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', ui-monospace, 'Courier New', monospace;
}

html {
    overflow-y: scroll;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    background-color: var(--color-bg-primary);
    color: var(--color-text-secondary);
    font-family: var(--font-ui);
    font-weight: 300;
    margin: 0;
    min-height: 100vh;
    overflow-x: hidden;
    padding: 0;
    position: relative;
}

.page-wrapper {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.content-wrapper {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 24px 20px 48px;
}

/* Background disk animation removed for the calmer C64GFX look. */
.disk-animation-container {
    display: none;
}

.container {
    max-width: 900px;
    width: 100%;
    position: relative;
    z-index: 1;
}

.main-header {
    text-align: center;
    margin-bottom: 32px;
    position: relative;
}

.title {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    position: relative;
}

.title-text {
    font-family: var(--font-ui);
    font-size: clamp(2.2rem, 1.6rem + 2vw, 3.4rem);
    font-weight: 700;
    color: var(--color-text-primary);
    letter-spacing: 0.04em;
}

.subtitle {
    font-family: var(--font-ui);
    font-size: 0.9rem;
    color: var(--color-text-muted);
    letter-spacing: 0.25em;
    text-transform: uppercase;
}

.inspire-quote {
    font-size: 0.9rem;
    color: var(--color-accent);
    letter-spacing: 0.04em;
    margin-top: 12px;
    opacity: 0.9;
    font-style: italic;
}

/* Decorative glow element kept in markup but inert in the subtle theme. */
.title-glow {
    display: none;
}

.file-input-container {
    background: var(--color-bg-card);
    border: 2px dashed var(--color-border);
    border-radius: var(--radius-lg);
    margin-bottom: 20px;
    padding: 40px;
    min-height: 230px;
    text-align: center;
    cursor: pointer;
    transition: border-color 0.2s ease, background-color 0.2s ease, box-shadow 0.2s ease;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

    .file-input-container:hover {
        background: var(--color-bg-elevated);
        border-color: var(--color-accent);
    }

    .file-input-container.drag-over {
        background: var(--color-bg-elevated);
        border-color: var(--color-accent);
        box-shadow: 0 0 0 1px var(--color-accent), 0 0 24px rgba(77, 163, 255, 0.25);
    }

.file-input-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 14px;
}

.file-input-active {
    display: none;
    font-size: 1.4rem;
    color: var(--color-accent);
    font-weight: 600;
    letter-spacing: 0.06em;
}

.file-input-container.drag-over .file-input-content {
    display: none;
}

.file-input-container.drag-over .file-input-active {
    display: block;
}

.disk-icon {
    color: var(--color-accent);
    transition: transform 0.2s ease;
}

.file-input-container:hover .disk-icon {
    transform: scale(1.06);
}

.file-input-text {
    font-size: 1.1rem;
    color: var(--color-text-primary);
    font-weight: 600;
    letter-spacing: 0.08em;
}

.file-input-subtext {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    letter-spacing: 0.04em;
}

.file-input-hidden {
    display: none;
}

.directory-display {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    min-height: 300px;
    padding: 16px;
    font-family: var(--font-mono);
    font-size: 16px;
    line-height: 1.1;
    white-space: pre;
    overflow-x: auto;
    box-shadow: var(--shadow-sm);
}

    .directory-display canvas,
    .directory-display .preview-canvas {
        image-rendering: pixelated;
        image-rendering: -moz-crisp-edges;
        image-rendering: pixelated;
        width: 768px;
        height: auto;
        display: block;
        margin: 0 auto;
    }

.loading-message {
    color: var(--color-text-muted);
    text-align: center;
    padding: 40px;
    font-family: var(--font-mono);
    font-size: 1.1rem;
    width: 100%;
    white-space: normal;
}

.disk-header {
    background-color: var(--color-text-secondary);
    color: var(--color-bg-primary);
    display: inline;
}

.error {
    color: var(--color-error);
    background-color: rgba(224, 85, 95, 0.12);
    padding: 15px;
    border: 1px solid var(--color-error);
    border-radius: var(--radius-sm);
    margin-top: 20px;
    text-align: center;
}

.footer {
    margin-top: 36px;
    text-align: center;
    font-family: var(--font-mono);
    font-size: 0.82rem;
    color: var(--color-text-muted);
    opacity: 0.85;
}

/* Editor Controls */
.editor-controls {
    margin: 10px 0;
    padding: 10px 0;
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.editor-row {
    display: flex;
    align-items: center;
    gap: 10px;
    margin: 6px 0;
    flex-wrap: wrap;
}

.editor-label {
    color: var(--color-text-muted);
    font-size: 0.8rem;
    letter-spacing: 0.08em;
    min-width: 55px;
    text-align: right;
}

.editor-na {
    color: var(--color-text-muted);
    font-size: 0.75rem;
    opacity: 0.6;
    letter-spacing: 0.05em;
}

.editor-toggle-group {
    display: flex;
    gap: 0;
}

.editor-toggle {
    padding: 5px 16px;
    background: var(--color-bg-elevated);
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border);
    font-family: var(--font-mono);
    font-size: 0.8rem;
    cursor: pointer;
    letter-spacing: 0.08em;
}

.editor-toggle.active {
    background: var(--color-accent);
    color: var(--color-bg-header);
    border-color: var(--color-accent);
}

.editor-toggle:hover {
    border-color: var(--color-accent);
    color: var(--color-text-primary);
}

.editor-toggle.active:hover {
    background: var(--color-accent);
    color: var(--color-bg-header);
}

/* Color Swatches */
.color-swatches {
    display: flex;
    gap: 2px;
    flex-wrap: wrap;
}

.color-swatch {
    width: 18px;
    height: 18px;
    border: 2px solid rgba(var(--color-overlay-rgb), 0.15);
    cursor: pointer;
    padding: 0;
    transition: border-color 0.15s;
}

.color-swatch:hover {
    border-color: rgba(var(--color-overlay-rgb), 0.6);
}

.color-swatch.selected {
    border-color: var(--color-accent);
    box-shadow: 0 0 4px rgba(77, 163, 255, 0.6);
}

/* Line Info Row */
.editor-line-row {
    margin-top: 8px;
}

.editor-line-info {
    color: var(--color-text-muted);
    font-size: 0.8rem;
    letter-spacing: 0.08em;
    min-width: 170px;
}

.editor-small-btn {
    padding: 3px 10px;
    background: transparent;
    color: var(--color-accent);
    border: 1px solid var(--color-accent);
    font-family: var(--font-mono);
    font-size: 0.7rem;
    cursor: pointer;
    letter-spacing: 0.05em;
}

.editor-small-btn:hover {
    background: var(--color-accent);
    color: var(--color-bg-header);
}

/* Preview Labels */
.preview-label {
    text-align: center;
    color: var(--color-text-muted);
    margin-top: 10px;
    margin-bottom: 5px;
    font-size: 0.9rem;
    letter-spacing: 0.08em;
}

/* Preview Workspace */
.preview-workspace {
    display: flex;
    gap: 24px;
    align-items: flex-start;
    justify-content: center;
    flex-wrap: wrap;
}

.preview-stage,
.overview-panel {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.main-preview-wrapper {
    width: min(100%, 768px);
}

.preview-help {
    max-width: 420px;
    margin: 0 auto;
    text-align: center;
    color: var(--color-text-muted);
    font-size: 0.75rem;
    letter-spacing: 0.04em;
    line-height: 1.5;
    opacity: 0.9;
    white-space: normal;
}

.overview-wrapper {
    position: relative;
    width: 220px;
    max-width: 100%;
    margin: 0 auto;
    background: rgba(0, 0, 0, 0.22);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.directory-display canvas.overview-canvas {
    image-rendering: pixelated;
    image-rendering: crisp-edges;
    width: 200px;
    height: auto;
    display: block;
    cursor: pointer;
}

.overview-markers {
    position: absolute;
    top: 0;
    right: 4px;
    bottom: 0;
    width: 6px;
    pointer-events: none;
}

.overview-marker {
    position: absolute;
    left: 0;
    right: 0;
    min-height: 2px;
    background: var(--color-marker);
    box-shadow: 0 0 6px rgba(240, 153, 90, 0.55);
    border-radius: 999px;
}

/* Crop Selection Box */
.crop-box {
    position: absolute;
    left: 0;
    right: 0;
    border-top: 2px solid rgba(255, 255, 255, 0.8);
    border-bottom: 2px solid rgba(255, 255, 255, 0.8);
    box-shadow: 0 -2000px 0 2000px rgba(0, 0, 0, 0.4),
                0 2000px 0 2000px rgba(0, 0, 0, 0.4);
    cursor: ns-resize;
    z-index: 10;
    outline: none;
    pointer-events: auto;
}

.crop-box:focus {
    border-color: var(--color-accent);
}

.crop-box.dragging {
    border-color: var(--color-accent);
}

.crop-box::after {
    content: '';
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 30px;
    height: 4px;
    background: rgba(255, 255, 255, 0.4);
    border-radius: 2px;
    pointer-events: none;
}

@media (max-width: 768px) {
    .title-text {
        font-size: 2.2rem;
    }

    .subtitle {
        font-size: 0.85rem;
    }

    .directory-display canvas,
    .directory-display .preview-canvas {
        width: 100%;
        max-width: 768px;
    }

    .color-swatch {
        width: 16px;
        height: 16px;
    }

    .editor-label {
        min-width: 45px;
        font-size: 0.7rem;
    }

    .preview-workspace {
        gap: 18px;
    }

    .overview-wrapper {
        width: 180px;
    }

    .directory-display canvas.overview-canvas {
        width: 160px;
    }
}