:root {
    color-scheme: dark;
    --bg: #0d1117;
    --panel: #151b23;
    --panel-soft: #1f2937;
    --border: #303845;
    --text: #f3f6fb;
    --muted: #9aa4b2;
    --accent: #4f8cff;
    --accent-strong: #2f6feb;
    --success: #2da44e;
    --danger: #f85149;
}

* {
    box-sizing: border-box;
}

body {
    min-height: 100vh;
    margin: 0;
    background: radial-gradient(circle at top left, #172033, var(--bg) 45%);
    color: var(--text);
    font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

button,
input,
select {
    font: inherit;
}

.app-shell {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 360px;
    gap: 20px;
    min-height: 100vh;
    padding: 20px;
}

.camera-column,
.action-panel,
.camera-card,
.category-panel,
.settings-card,
.result-card {
    border: 1px solid var(--border);
    background: rgba(21, 27, 35, 0.92);
    box-shadow: 0 18px 60px rgba(0, 0, 0, 0.24);
}

.camera-column {
    display: flex;
    flex-direction: column;
    gap: 16px;
    border-radius: 24px;
    padding: 18px;
}

.page-header,
.section-title,
.settings-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.eyebrow {
    margin: 0 0 4px;
    color: var(--accent);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

h1,
h2,
p {
    margin-top: 0;
}

h1 {
    margin-bottom: 0;
    font-size: clamp(1.65rem, 2.5vw, 2.5rem);
}

h2 {
    margin-bottom: 0;
    font-size: 1.05rem;
}

.camera-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
}

.camera-card {
    position: relative;
    overflow: hidden;
    border-radius: 20px;
    background: #070a0f;
}

.camera-card video {
    display: block;
    width: 100%;
    aspect-ratio: 4 / 3;
    background: #05070a;
    object-fit: cover;
}

.camera-label {
    position: absolute;
    top: 12px;
    left: 12px;
    z-index: 1;
    border-radius: 999px;
    background: rgba(0, 0, 0, 0.58);
    padding: 6px 10px;
    font-weight: 700;
}

select,
input {
    width: 100%;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: var(--panel-soft);
    color: var(--text);
    padding: 12px;
}

.camera-card select {
    border-width: 1px 0 0;
    border-radius: 0;
}

.category-panel,
.settings-card,
.result-card {
    border-radius: 20px;
    padding: 16px;
}

.category-list {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 10px;
    margin-top: 14px;
}

.category-chip {
    border: 1px solid var(--border);
    border-radius: 14px;
    background: rgba(31, 41, 55, 0.7);
    padding: 10px;
    min-height: 72px;
}

.category-chip strong {
    display: block;
    margin-bottom: 4px;
}

.category-chip span,
.hint,
.empty-state,
.result-reason {
    color: var(--muted);
    font-size: 0.88rem;
}

.action-panel {
    display: flex;
    flex-direction: column;
    gap: 16px;
    border-radius: 24px;
    padding: 18px;
}

.settings-card label {
    display: block;
    margin: 14px 0 8px;
    color: var(--muted);
}

.settings-actions {
    margin-top: 12px;
}

.apk-link {
    display: inline-block;
    margin-top: 10px;
    color: var(--accent);
    font-size: 0.82rem;
    text-decoration: none;
}

.apk-link:hover {
    text-decoration: underline;
}

button {
    border: 0;
    border-radius: 14px;
    cursor: pointer;
    color: var(--text);
    font-weight: 800;
}

button:disabled {
    cursor: not-allowed;
    opacity: 0.55;
}

.secondary-button,
.ghost-button,
.confirm-button {
    padding: 12px 14px;
}

.secondary-button {
    background: var(--panel-soft);
}

.ghost-button {
    background: transparent;
    color: var(--muted);
}

.recognize-button {
    min-height: 96px;
    background: linear-gradient(135deg, var(--accent), var(--accent-strong));
    font-size: 1.45rem;
}

.confirm-button {
    width: 100%;
    margin-top: 12px;
    background: var(--success);
}

.result-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 14px;
}

.result-item {
    display: grid;
    gap: 6px;
    border: 1px solid var(--border);
    border-radius: 16px;
    background: rgba(31, 41, 55, 0.74);
    padding: 12px;
}

.result-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}

.confidence {
    border-radius: 999px;
    background: rgba(79, 140, 255, 0.16);
    color: #9dc0ff;
    padding: 4px 8px;
    font-weight: 800;
}

#statusBadge,
#categoryCount {
    border-radius: 999px;
    background: var(--panel-soft);
    color: var(--muted);
    padding: 5px 9px;
    font-size: 0.82rem;
    font-weight: 700;
}

#statusBadge.error {
    background: rgba(248, 81, 73, 0.16);
    color: var(--danger);
}

#statusBadge.ready {
    background: rgba(45, 164, 78, 0.16);
    color: #7ee787;
}

@media (max-width: 980px) {
    .app-shell {
        grid-template-columns: 1fr;
    }

    .action-panel {
        order: -1;
    }

    .category-list {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 640px) {
    .app-shell {
        padding: 10px;
    }

    .camera-grid {
        grid-template-columns: 1fr;
    }

    .category-list {
        grid-template-columns: 1fr;
    }
}