/* QR.BOX v3 — light/paper theme */

@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@300;400;500;700&family=Orbitron:wght@500;700;900&display=swap');

:root {
    /* Paper / parchment palette */
    --bg: #f5f1e8;                /* warm off-white */
    --grid: rgba(0, 0, 0, 0.05);  /* very subtle grid */
    --fg: #2a2620;                /* dark brown text */
    --fg-dim: #6b5d4a;            /* dimmer text */
    --accent: #c97a1f;            /* darker amber */
    --accent-bright: #b86b15;     /* darker on hover */
    --accent-blue: #1f5fa8;       /* deeper blue */
    --accent-amber: #c97a1f;
    --danger: #b22d1c;
    --success: #2e7d32;
    --border: #d4cbb3;
    --border-bright: #b8a87f;
    --card-bg: #fdfaf0;           /* card slightly brighter than page */
    --input-bg: #fdfaf0;
}

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

html, body {
    background: var(--bg);
    color: var(--fg);
    font-family: 'JetBrains Mono', monospace;
    font-size: 14px;
    line-height: 1.5;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

body {
    background-image:
        linear-gradient(var(--grid) 1px, transparent 1px),
        linear-gradient(90deg, var(--grid) 1px, transparent 1px);
    background-size: 32px 32px;
    background-position: -1px -1px;
    padding: 24px;
}

/* === SHELL (most pages) === */

.shell {
    max-width: 720px;
    margin: 0 auto;
    border: 1px solid var(--border-bright);
    background: var(--card-bg);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
    position: relative;
}

.shell::before, .shell::after {
    content: '';
    position: absolute;
    width: 10px;
    height: 10px;
    border: 1px solid var(--accent);
}
.shell::before { top: -1px; left: -1px; border-right: none; border-bottom: none; }
.shell::after { bottom: -1px; right: -1px; border-left: none; border-top: none; }

.bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border);
    padding: 10px 16px;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.18em;
    color: var(--fg-dim);
    background: linear-gradient(180deg, #ebe5d4 0%, #e0d8c0 100%);
}

.bar .dot {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent);
    margin-right: 8px;
    animation: blink 2s ease-in-out infinite;
}

@keyframes blink {
    0%, 60%, 100% { opacity: 1; }
    70%, 90% { opacity: 0.3; }
}

.bar a {
    color: var(--fg-dim);
    text-decoration: none;
    border-bottom: 1px dotted var(--fg-dim);
    margin-left: 12px;
}
.bar a:hover { color: var(--accent); border-color: var(--accent); }

.head {
    padding: 32px 24px 24px;
    border-bottom: 1px solid var(--border);
}

.head h1 {
    font-family: 'Orbitron', monospace;
    font-size: 28px;
    font-weight: 400;
    color: var(--accent);
    letter-spacing: 0.04em;
    margin-bottom: 6px;
}

.head .subtitle {
    color: var(--fg-dim);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.2em;
}

.body { padding: 24px; }

/* === FORM === */

.field { margin-bottom: 20px; }

.field label {
    display: block;
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.22em;
    color: var(--fg-dim);
    margin-bottom: 6px;
}

.field label::before {
    content: '> ';
    color: var(--accent);
}

input[type="text"], input[type="password"], textarea {
    width: 100%;
    background: var(--input-bg);
    border: 1px solid var(--border-bright);
    color: var(--fg);
    font-family: inherit;
    font-size: 14px;
    padding: 10px 12px;
    outline: none;
    transition: border-color 0.15s, box-shadow 0.15s;
}

input:focus, textarea:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 2px rgba(201, 122, 31, 0.15);
}

textarea {
    resize: vertical;
    min-height: 140px;
    line-height: 1.6;
}

input::placeholder, textarea::placeholder { color: #a89972; }

button, .btn {
    display: inline-block;
    background: transparent;
    border: 1px solid var(--accent);
    color: var(--accent);
    font-family: inherit;
    font-size: 12px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.18em;
    padding: 11px 22px;
    cursor: pointer;
    transition: all 0.15s;
    text-decoration: none;
}

button:hover:not(:disabled), .btn:hover {
    background: var(--accent);
    color: #fff;
    box-shadow: 0 2px 8px rgba(201, 122, 31, 0.3);
}

button:disabled { opacity: 0.4; cursor: not-allowed; }

button.secondary {
    border-color: var(--border-bright);
    color: var(--fg-dim);
}
button.secondary:hover:not(:disabled) {
    background: var(--border-bright);
    color: var(--fg);
    box-shadow: none;
}

.msg {
    padding: 10px 12px;
    margin-top: 12px;
    font-size: 12px;
    border-left: 3px solid;
    background: rgba(0, 0, 0, 0.03);
}
.msg.error { color: var(--danger); border-color: var(--danger); background: rgba(178, 45, 28, 0.05); }
.msg.success { color: var(--success); border-color: var(--success); background: rgba(46, 125, 50, 0.05); }
.msg.info { color: var(--fg-dim); border-color: var(--border-bright); }
.msg::before { content: attr(data-prefix) ' '; font-weight: 700; }

.alt-link {
    margin-top: 20px;
    padding-top: 16px;
    border-top: 1px solid var(--border);
    color: var(--fg-dim);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.18em;
    text-align: center;
}
.alt-link a {
    color: var(--accent);
    text-decoration: none;
    border-bottom: 1px dotted var(--accent);
    margin-left: 6px;
}

/* === HOME PAGE — two big option cards === */

.home-shell {
    max-width: 960px;
    margin: 0 auto;
    padding: 60px 0 40px;
}

.home-header {
    text-align: center;
    margin-bottom: 56px;
    position: relative;
}

.home-brand {
    font-family: 'Orbitron', monospace;
    font-size: 48px;
    color: var(--accent);
    letter-spacing: 0.04em;
    margin-bottom: 10px;
}

.home-tagline {
    color: var(--fg-dim);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.32em;
    margin-bottom: 14px;
}

.home-status {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--success);
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    padding: 4px 10px;
    border: 1px solid var(--border-bright);
    background: rgba(46, 125, 50, 0.08);
}

.home-status .dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--success);
    animation: blink 2s ease-in-out infinite;
}

.home-options {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-bottom: 40px;
}

.option-card {
    border: 1px solid var(--border-bright);
    background: var(--card-bg);
    padding: 32px 28px;
    text-decoration: none;
    color: var(--fg);
    position: relative;
    transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s;
    display: block;
    overflow: hidden;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.option-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 100%;
    height: 3px;
    background: var(--card-color, var(--accent));
    transform: scaleX(0.3);
    transform-origin: left;
    transition: transform 0.3s;
}

.option-card:hover {
    border-color: var(--card-color, var(--accent));
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12),
                0 0 0 1px var(--card-color, var(--accent));
}

.option-card:hover::before { transform: scaleX(1); }

.option-card.generate { --card-color: var(--accent-blue); }
.option-card.scan     { --card-color: var(--accent-amber); }

.option-card .num {
    font-family: 'Courier New', monospace;
    font-size: 11px;
    color: var(--fg-dim);
    letter-spacing: 0.32em;
    margin-bottom: 16px;
    text-transform: uppercase;
}

.option-card .icon {
    font-size: 48px;
    margin-bottom: 20px;
    color: var(--card-color);
    line-height: 1;
}

.option-card h2 {
    font-family: 'Orbitron', monospace;
    font-size: 22px;
    color: var(--card-color);
    margin-bottom: 8px;
    letter-spacing: 0.02em;
    font-weight: normal;
}

.option-card .sub {
    font-size: 12px;
    color: var(--fg-dim);
    text-transform: uppercase;
    letter-spacing: 0.18em;
    margin-bottom: 20px;
}

.option-card p {
    font-size: 13px;
    color: var(--fg);
    line-height: 1.7;
    margin-bottom: 24px;
}

.option-card .arrow {
    font-size: 11px;
    color: var(--card-color);
    text-transform: uppercase;
    letter-spacing: 0.2em;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.option-card .arrow::after {
    content: '→';
    transition: transform 0.2s;
}

.option-card:hover .arrow::after { transform: translateX(4px); }

.home-footer {
    text-align: center;
    color: var(--fg-dim);
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.22em;
    padding-top: 24px;
    border-top: 1px solid var(--border);
}

.home-footer a {
    color: var(--accent);
    text-decoration: none;
    border-bottom: 1px dotted var(--accent);
}

/* === RESULT PANELS === */

.result {
    margin-top: 24px;
    border: 1px solid var(--border-bright);
    padding: 20px;
    background: var(--card-bg);
}

.result .meta {
    font-size: 11px;
    color: var(--fg-dim);
    text-transform: uppercase;
    letter-spacing: 0.18em;
    margin-bottom: 14px;
    display: flex;
    justify-content: space-between;
}

.result .box-id {
    color: var(--accent);
    font-weight: 500;
    letter-spacing: 0.05em;
}

.qr-frame {
    background: white;
    padding: 16px;
    display: inline-block;
    margin: 8px auto 16px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.12);
    border: 1px solid var(--border);
}

.qr-frame img {
    display: block;
    max-width: 280px;
    width: 100%;
    image-rendering: pixelated;
}

.center { text-align: center; }

.url-display {
    font-size: 11px;
    color: var(--fg-dim);
    word-break: break-all;
    padding: 8px 10px;
    background: var(--bg);
    border: 1px dashed var(--border-bright);
    margin-top: 8px;
}

.notes-display {
    background: var(--card-bg);
    border: 2px solid var(--accent);
    padding: 20px;
    font-size: 14px;
    line-height: 1.7;
    white-space: pre-wrap;
    word-wrap: break-word;
    color: var(--fg);
    box-shadow: 0 2px 12px rgba(201, 122, 31, 0.15);
    animation: revealNotes 0.4s ease-out;
}

@keyframes revealNotes {
    from { opacity: 0; transform: translateY(4px); }
    to { opacity: 1; transform: translateY(0); }
}

.row { display: flex; gap: 12px; align-items: center; }
.row > * { flex: 1; }

.box-list { list-style: none; }
.box-list li {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0;
    border-bottom: 1px solid var(--border);
    font-size: 13px;
}
.box-list li:last-child { border-bottom: none; }
.box-list .id { color: var(--accent); font-weight: 500; }
.box-list .date { color: var(--fg-dim); font-size: 11px; }

.empty {
    color: var(--fg-dim);
    text-align: center;
    padding: 40px 20px;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    border: 1px dashed var(--border-bright);
}

.status-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    background: var(--border-bright);
    border: 1px solid var(--border-bright);
    margin-bottom: 24px;
}

.status-grid .cell {
    background: var(--card-bg);
    padding: 14px 12px;
    text-align: center;
}
.status-grid .label {
    font-size: 9px;
    text-transform: uppercase;
    letter-spacing: 0.22em;
    color: var(--fg-dim);
    margin-bottom: 4px;
}
.status-grid .value {
    font-family: 'Orbitron', monospace;
    font-size: 18px;
    color: var(--accent);
}

@media (max-width: 720px) {
    body { padding: 12px; }
    .head { padding: 24px 16px 16px; }
    .head h1 { font-size: 22px; }
    .body { padding: 16px; }
    .row { flex-direction: column; align-items: stretch; }
    .home-options { grid-template-columns: 1fr; }
    .home-brand { font-size: 36px; }
    .home-shell { padding: 30px 0 20px; }
    .status-grid { grid-template-columns: 1fr; }
}