:root {
    --page-bg: #070b11;
    --page-bg-2: #111827;
    --panel: rgba(17, 25, 39, 0.92);
    --panel-solid: #111827;
    --line: rgba(255, 255, 255, 0.13);
    --text: #eef4ff;
    --muted: #9ba8ba;
    --accent: #ff7a18;
    --accent-2: #ffb347;
    --danger: #ff5f56;
    --success: #39d98a;
    --radius: 18px;
    color-scheme: dark;
}

* { box-sizing: border-box; }
html { min-height: 100%; }
body {
    margin: 0;
    min-height: 100%;
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background:
        radial-gradient(circle at 20% 0%, rgba(255, 122, 24, 0.14), transparent 32rem),
        radial-gradient(circle at 100% 0%, rgba(65, 129, 255, 0.12), transparent 30rem),
        linear-gradient(180deg, var(--page-bg-2), var(--page-bg));
    color: var(--text);
}

a { color: inherit; text-decoration: none; }
a:hover { color: var(--accent-2); }
code { color: #ffd49a; }

.site-header {
    position: sticky;
    top: 0;
    z-index: 20;
    display: flex;
    justify-content: space-between;
    gap: 24px;
    align-items: center;
    padding: 14px clamp(16px, 4vw, 48px);
    background: rgba(5, 8, 13, 0.82);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--line);
}
.brand { display: inline-flex; align-items: center; gap: 12px; font-weight: 900; letter-spacing: 0.02em; }
.brand-mark {
    display: inline-grid;
    place-items: center;
    width: 38px;
    height: 38px;
    border: 1px solid rgba(255, 122, 24, 0.55);
    border-radius: 50%;
    color: var(--accent);
    box-shadow: 0 0 22px rgba(255, 122, 24, 0.22) inset;
}
.site-nav { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; justify-content: flex-end; }
.site-nav a { padding: 9px 12px; color: var(--muted); border-radius: 999px; }
.site-nav a:hover { background: rgba(255, 255, 255, 0.06); color: var(--text); }

.page-shell { width: min(1480px, calc(100% - 32px)); margin: 0 auto; padding: 34px 0 80px; }
.hero, .section-head, .binding-toolbar {
    display: flex;
    justify-content: space-between;
    gap: 24px;
    align-items: center;
    margin-bottom: 26px;
}
.hero h1, .section-head h1, .binding-toolbar h1 { margin: 0; font-size: clamp(2rem, 5vw, 4.8rem); line-height: 0.98; letter-spacing: -0.055em; }
.hero p, .muted { color: var(--muted); }
.eyebrow { color: var(--accent); text-transform: uppercase; letter-spacing: 0.16em; font-size: 0.78rem; font-weight: 900; margin: 0 0 10px; }
.hero-panel { min-width: 240px; padding: 24px; background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); }
.hero-panel strong { display: block; color: var(--muted); margin-bottom: 8px; }
.hero-panel span { font-size: 4rem; color: var(--accent); font-weight: 900; }

.button, button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    border: 0;
    border-radius: 999px;
    padding: 11px 16px;
    color: #120803;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    font-weight: 900;
    cursor: pointer;
    font: inherit;
    font-weight: 900;
}
.button.ghost, .toolbar-actions button {
    color: var(--text);
    background: rgba(255, 255, 255, 0.07);
    border: 1px solid var(--line);
}
.toolbar-actions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: flex-end; }
button:disabled { opacity: 0.55; cursor: wait; }

.card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 16px; }
.summary-card, .form-card, .auth-panel, .empty-state, .table-wrap, .version-strip {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: 0 20px 70px rgba(0, 0, 0, 0.22);
}
.summary-card { padding: 20px; }
.summary-card h3 { font-size: 1.35rem; margin: 14px 0 8px; }
.summary-card p { color: var(--muted); min-height: 3em; }
.summary-card-top { display: flex; justify-content: space-between; color: var(--muted); font-size: 0.88rem; }
.pill { display: inline-flex; padding: 5px 9px; border-radius: 999px; background: rgba(255, 255, 255, 0.08); color: var(--muted); }
.pill-public { color: var(--success); }
.meta-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin: 18px 0 0; }
.meta-list div { padding: 10px; border-radius: 12px; background: rgba(255, 255, 255, 0.05); }
.meta-list dt { color: var(--muted); font-size: 0.75rem; }
.meta-list dd { margin: 3px 0 0; font-weight: 900; }
.empty-state { padding: 30px; color: var(--muted); }

.auth-panel { max-width: 480px; margin: 0 auto; padding: 24px; }
.form-card { display: grid; gap: 16px; padding: 22px; }
.form-card.wide { max-width: 980px; }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.span-2 { grid-column: 1 / -1; }
label { display: grid; gap: 7px; color: var(--text); font-weight: 800; }
input, textarea, select {
    width: 100%;
    border: 1px solid var(--line);
    border-radius: 12px;
    padding: 12px 13px;
    background: rgba(0, 0, 0, 0.26);
    color: var(--text);
    font: inherit;
}
textarea { resize: vertical; }
.radio-row { display: flex; flex-wrap: wrap; gap: 14px; }
.radio-row label { display: inline-flex; grid-template-columns: auto 1fr; align-items: center; }
.small-link { text-align: center; color: var(--muted); }
.flash { padding: 13px 16px; margin: 0 0 18px; border-radius: 14px; border: 1px solid var(--line); }
.flash-error { color: #ffd7d4; background: rgba(255, 95, 86, 0.14); border-color: rgba(255, 95, 86, 0.38); }
.flash-success { color: #c9ffe2; background: rgba(57, 217, 138, 0.12); border-color: rgba(57, 217, 138, 0.35); }

.table-wrap { overflow: auto; margin: 14px 0 28px; }
table { width: 100%; border-collapse: collapse; min-width: 720px; }
th, td { padding: 13px 14px; text-align: left; border-bottom: 1px solid var(--line); }
th { color: var(--muted); font-size: 0.82rem; text-transform: uppercase; letter-spacing: 0.08em; }
.inline-form { display: inline-flex; gap: 8px; align-items: center; }
.inline-form select { min-width: 120px; }
.inline-form button { padding: 8px 12px; }

.version-strip { display: flex; align-items: center; gap: 8px; padding: 12px 14px; margin-bottom: 18px; overflow: auto; }
.version-chip { padding: 7px 10px; border-radius: 999px; color: var(--muted); background: rgba(255, 255, 255, 0.06); }
.version-chip.active { color: #130801; background: var(--accent); }

.binding-graphic {
    --g-bg: #070b11;
    --g-panel: rgba(14, 21, 31, 0.94);
    --g-panel-2: rgba(255, 255, 255, 0.045);
    --g-text: #eef4ff;
    --g-muted: #9ba8ba;
    --g-accent: #ff7a18;
    --g-line: rgba(255, 255, 255, 0.13);
    background:
        radial-gradient(circle at top left, color-mix(in srgb, var(--g-accent) 22%, transparent), transparent 36rem),
        linear-gradient(180deg, color-mix(in srgb, var(--g-bg) 88%, #fff 3%), var(--g-bg));
    color: var(--g-text);
    border: 1px solid var(--g-line);
    border-radius: 28px;
    padding: clamp(16px, 2.5vw, 28px);
    box-shadow: 0 28px 100px rgba(0, 0, 0, 0.35);
}
.theme-light {
    --g-bg: #f5f7fb;
    --g-panel: rgba(255, 255, 255, 0.92);
    --g-panel-2: rgba(8, 18, 30, 0.045);
    --g-text: #152033;
    --g-muted: #64748b;
    --g-accent: #2563eb;
    --g-line: rgba(8, 18, 30, 0.13);
    color-scheme: light;
}
.theme-grey {
    --g-bg: #16181c;
    --g-panel: rgba(37, 40, 46, 0.92);
    --g-panel-2: rgba(255, 255, 255, 0.06);
    --g-text: #f0f2f5;
    --g-muted: #b2b7c0;
    --g-accent: #a7b0bd;
    --g-line: rgba(255, 255, 255, 0.14);
}
.graphic-header { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 20px; align-items: start; margin-bottom: 22px; }
.callsign { color: var(--g-accent); font-size: 0.76rem; font-weight: 1000; letter-spacing: 0.22em; }
.graphic-header h2 { margin: 8px 0; font-size: clamp(1.8rem, 4vw, 4rem); letter-spacing: -0.05em; }
.graphic-header p { color: var(--g-muted); max-width: 80ch; }
.graphic-header dl { display: grid; grid-template-columns: repeat(2, minmax(120px, 1fr)); gap: 10px; margin: 0; min-width: min(430px, 100%); }
.graphic-header dl div { background: var(--g-panel); border: 1px solid var(--g-line); border-radius: 15px; padding: 11px; }
.graphic-header dt { color: var(--g-muted); font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.08em; }
.graphic-header dd { margin: 4px 0 0; font-weight: 1000; }

.keyboard-panel { background: var(--g-panel); border: 1px solid var(--g-line); border-radius: 22px; padding: 16px; margin-bottom: 18px; }
.keyboard-head { display: flex; justify-content: space-between; gap: 16px; align-items: baseline; }
.keyboard-head h3 { margin: 0; }
.keyboard-head p { margin: 0; color: var(--g-muted); }
.keyboard-map { display: grid; gap: 7px; margin-top: 16px; overflow-x: auto; padding-bottom: 6px; }
.keyboard-row { display: flex; gap: 7px; min-width: max-content; }
.keycap {
    min-width: 42px;
    height: 42px;
    padding: 0 10px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--g-line);
    border-radius: 10px;
    background: var(--g-panel-2);
    color: var(--g-muted);
    font-weight: 900;
    cursor: default;
}
.keycap.wide { min-width: 76px; }
.keycap.bound { color: var(--g-text); border-color: color-mix(in srgb, var(--g-accent) 60%, var(--g-line)); box-shadow: 0 0 0 1px color-mix(in srgb, var(--g-accent) 22%, transparent) inset; cursor: pointer; }
.keycap.bound strong { color: var(--g-accent); }
.key-details { margin-top: 12px; color: var(--g-muted); min-height: 1.6em; }
.key-details strong { color: var(--g-text); }

.filter-line {
    display: block;
    column-span: all;
    -webkit-column-span: all;
    min-width: 0;
    max-width: 100%;
    overflow: hidden;
    background: var(--g-panel);
    border: 1px solid var(--g-line);
    border-radius: 18px;
    padding: 14px;
    margin-bottom: 14px;
}

.category-grid {
    display: block;
    column-width: 320px;
    column-gap: 14px;
    column-fill: balance;
}

.category-card {
    display: inline-block;
    width: 100%;
    min-width: 0;
    max-width: 100%;
    overflow: hidden;
    vertical-align: top;
    background: var(--g-panel);
    border: 1px solid var(--g-line);
    border-radius: 20px;
    padding: 16px;
    margin: 0 0 14px;
    break-inside: avoid;
    page-break-inside: avoid;
    -webkit-column-break-inside: avoid;
}

.category-card[hidden] { display: none !important; }
.category-card h3 { margin: 0 0 12px; color: var(--g-accent); font-size: 1.28rem; overflow-wrap: anywhere; }
.binding-list { display: grid; gap: 6px; min-width: 0; max-width: 100%; }
.binding-row { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 48%); gap: 10px; align-items: center; min-width: 0; max-width: 100%; padding: 7px 0; border-bottom: 1px solid color-mix(in srgb, var(--g-line) 70%, transparent); }
.binding-row:last-child { border-bottom: 0; }
.binding-label { min-width: 0; font-weight: 760; line-height: 1.25; overflow-wrap: anywhere; }
.binding-keys { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 5px; min-width: 0; max-width: 100%; overflow: hidden; }
kbd { display: inline-flex; align-items: center; justify-content: center; min-width: 0; max-width: 100%; border: 1px solid color-mix(in srgb, var(--g-accent) 45%, var(--g-line)); border-bottom-width: 2px; border-radius: 999px; padding: 4px 8px; color: var(--g-text); background: var(--g-panel-2); font: 800 0.78rem/1.2 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; text-align: center; white-space: normal; overflow-wrap: anywhere; word-break: break-word; }
.conflict-panel { margin-top: 16px; background: color-mix(in srgb, var(--danger) 13%, var(--g-panel)); border: 1px solid color-mix(in srgb, var(--danger) 45%, var(--g-line)); border-radius: 20px; padding: 16px; }
.conflict-panel p { margin: 7px 0; color: var(--g-muted); }

.export-raster-host {
    position: fixed;
    left: -200000px;
    top: 0;
    z-index: -1;
    pointer-events: none;
    opacity: 0;
    overflow: visible;
}

.binding-graphic.export-raster-target {
    width: 100%;
    max-width: none;
    margin: 0;
    box-shadow: none;
    overflow: visible;
}

.binding-graphic.export-raster-target .filter-line,
.binding-graphic.export-raster-target .keyboard-panel {
    display: none !important;
}

@media (max-width: 860px) {
    .category-grid {
        column-width: auto;
        column-count: 1;
    }


    .site-header, .hero, .section-head, .binding-toolbar, .graphic-header { align-items: stretch; flex-direction: column; display: flex; }
    .graphic-header dl { min-width: 0; }
    .binding-row { grid-template-columns: minmax(0, 1fr); align-items: start; }
    .binding-keys { justify-content: flex-start; }
    .form-grid { grid-template-columns: 1fr; }
    .span-2 { grid-column: auto; }
}

@media print {
    @page {
        size: A3 landscape;
        margin: 8mm;
    }

    * {
        -webkit-print-color-adjust: exact !important;
        print-color-adjust: exact !important;
    }

    html,
    body {
        width: auto !important;
        min-height: 0 !important;
        background: #070b11 !important;
        color: #eef4ff !important;
    }

    .site-header,
    .binding-toolbar,
    .version-strip,
    .flash,
    .filter-line,
    .keyboard-panel {
        display: none !important;
    }

    .page-shell {
        width: 100% !important;
        max-width: none !important;
        margin: 0 !important;
        padding: 0 !important;
    }

    .binding-graphic {
        width: 100% !important;
        max-width: none !important;
        margin: 0 !important;
        padding: 8mm !important;
        border: 0 !important;
        border-radius: 0 !important;
        box-shadow: none !important;
        overflow: visible !important;
        background:
            radial-gradient(circle at top left, color-mix(in srgb, var(--g-accent) 18%, transparent), transparent 28rem),
            linear-gradient(180deg, color-mix(in srgb, var(--g-bg) 88%, #fff 3%), var(--g-bg)) !important;
    }

    .graphic-header {
        display: grid !important;
        grid-template-columns: minmax(0, 1fr) auto !important;
        gap: 8mm !important;
        margin-bottom: 7mm !important;
        break-inside: avoid !important;
        page-break-inside: avoid !important;
    }

    .graphic-header h2 {
        font-size: 30pt !important;
        line-height: 1 !important;
    }

    .graphic-header p {
        margin: 0 !important;
    }

    .graphic-header dl {
        grid-template-columns: repeat(2, minmax(30mm, 1fr)) !important;
        min-width: 0 !important;
    }

    .category-grid {
        display: block !important;
        column-count: 4 !important;
        column-width: auto !important;
        column-gap: 5mm !important;
        column-fill: auto !important;
    }

    .category-card {
        display: inline-block !important;
        width: 100% !important;
        margin: 0 0 5mm !important;
        padding: 4mm !important;
        border-radius: 4mm !important;
        overflow: visible !important;
        break-inside: avoid !important;
        page-break-inside: avoid !important;
        -webkit-column-break-inside: avoid !important;
    }

    .category-card h3 {
        font-size: 12pt !important;
        margin-bottom: 3mm !important;
    }

    .binding-list {
        gap: 1.4mm !important;
    }

    .binding-row {
        grid-template-columns: minmax(0, 1fr) minmax(0, 46%) !important;
        gap: 2mm !important;
        padding: 1.7mm 0 !important;
        break-inside: avoid !important;
        page-break-inside: avoid !important;
    }

    .binding-label {
        font-size: 8.5pt !important;
        line-height: 1.15 !important;
    }

    .binding-keys {
        gap: 1mm !important;
        overflow: visible !important;
    }

    kbd {
        padding: 1mm 1.8mm !important;
        font-size: 6.7pt !important;
        line-height: 1.15 !important;
    }

    .conflict-panel {
        break-inside: avoid !important;
        page-break-inside: avoid !important;
    }
}