/* ═══════════════════════════════════════════
   PixDice — Upload Page
   ═══════════════════════════════════════════ */

.upload-page {
    min-height: calc(100dvh - 64px - 60px);
    padding: 40px 0 60px;
}

.upload-container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: 380px 1fr;
    gap: 24px;
    align-items: start;
}

/* ── Panels ── */
.panel {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 32px;
}

.panel h2 {
    margin: 0 0 6px;
    font-size: 1.35rem;
    font-weight: 700;
}

.subtitle {
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    margin: 0 0 24px;
}

/* ── Upload area ── */
.upload-area {
    border: 2px dashed var(--color-border);
    border-radius: var(--radius);
    padding: 32px;
    text-align: center;
    cursor: pointer;
    transition: border-color var(--transition), background var(--transition);
    margin-bottom: 24px;
    min-height: 160px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
}

.upload-area:hover,
.upload-area.drag-over {
    border-color: var(--color-accent);
    background: var(--color-accent-light);
}

.upload-prompt p {
    margin: 4px 0;
    color: var(--color-text-secondary);
    font-size: 0.9rem;
}

.upload-hint {
    font-size: 0.8rem !important;
    color: var(--color-text-secondary) !important;
    opacity: 0.7;
}

.preview-img {
    max-width: 100%;
    max-height: 200px;
    border-radius: 6px;
    display: none;
}

/* ── Controls ── */
.controls {
    display: flex;
    flex-direction: column;
    gap: 18px;
    margin-bottom: 24px;
}

.control-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 6px;
}

.control-group select {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    font-size: 0.9rem;
    background: var(--color-bg);
    color: var(--color-text);
    font-family: var(--font-sans);
    transition: border-color var(--transition);
}

.control-group select:focus {
    outline: none;
    border-color: var(--color-accent);
}

.control-group input[type="range"] {
    width: 100%;
    accent-color: var(--color-accent);
}

.badge {
    display: inline-block;
    background: var(--color-bg);
    color: var(--color-text-secondary);
    font-size: 0.75rem;
    padding: 2px 10px;
    border-radius: 6px;
    font-weight: 500;
    margin-left: 6px;
}

.checkbox-label {
    display: flex !important;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-weight: 400 !important;
}

.checkbox-label input {
    accent-color: var(--color-accent);
    width: 16px;
    height: 16px;
}

/* ── Buttons ── */
.btn-generate {
    width: 100%;
    padding: 14px;
    font-size: 0.95rem;
}

.btn-generate:disabled {
    background: var(--color-text-secondary);
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.btn-download {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: 20px;
    padding: 12px 24px;
    font-size: 0.9rem;
}

/* ── Result panel ── */
.panel-result {
    min-height: 400px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.result-empty {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    color: var(--color-text-secondary);
    opacity: 0.5;
}

.result-empty p {
    font-size: 0.95rem;
}

.result-content {
    width: 100%;
}

.result-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
    flex-wrap: wrap;
    gap: 10px;
}

.result-header p {
    margin: 0;
    font-size: 0.85rem;
    color: var(--color-text-secondary);
}

/* ── Legend ── */
.legend {
    display: flex;
    gap: 8px;
    font-size: 0.75rem;
    color: var(--color-text-secondary);
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 4px;
}

.legend-swatch {
    width: 14px;
    height: 14px;
    border: 1px solid var(--color-border);
    display: inline-block;
    border-radius: 3px;
}

/* ── Grid ── */
#grid-wrapper {
    overflow: hidden;
    display: flex;
    justify-content: center;
}

#grid {
    display: grid;
    transform-origin: top center;
}

.cell {
    width: 10px;
    height: 10px;
    font-size: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(0, 0, 0, 0.6);
    border: 0.5px solid rgba(0, 0, 0, 0.06);
}

@media (prefers-color-scheme: dark) {
    .cell {
        color: rgba(255, 255, 255, 0.5);
        border-color: rgba(255, 255, 255, 0.06);
    }
}

/* ── Loading ── */
.loading {
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 10px;
    justify-content: center;
}

.spinner {
    display: inline-block;
    width: 18px;
    height: 18px;
    border: 2px solid var(--color-border);
    border-top-color: var(--color-accent);
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ── Toast notifications ── */
#toast-container {
    position: fixed;
    top: 80px;
    right: 20px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.toast {
    padding: 14px 20px;
    border-radius: var(--radius);
    font-size: 0.9rem;
    font-weight: 500;
    color: white;
    opacity: 0;
    transform: translateX(40px);
    transition: opacity 0.3s, transform 0.3s;
    max-width: 360px;
    box-shadow: var(--shadow-lg);
}

.toast.show {
    opacity: 1;
    transform: translateX(0);
}

.toast-error {
    background: #dc2626;
}

.toast-success {
    background: #16a34a;
}

/* ── Responsive ── */
@media (max-width: 800px) {
    .upload-container {
        grid-template-columns: 1fr;
    }

    .upload-page {
        padding: 24px 0 40px;
    }
}