/* ============================================
   SJCET Folio QR Stamping Tool - Flask Web Styles
   Matches the original Tkinter color palette
   ============================================ */

/* --- Reset & Base --- */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    --bg: #f0f4f8;
    --card-bg: #ffffff;
    --primary: #1a73e8;
    --primary-dark: #1557b0;
    --accent: #4CAF50;
    --accent-hover: #43a047;
    --danger: #e53935;
    --text-dark: #1e293b;
    --text-mid: #475569;
    --text-light: #94a3b8;
    --border: #cbd5e1;
    --shadow: #e2e8f0;
    --section-bg: #eef2ff;
    --color-provisional: #1a73e8;
    --color-consolidated: #7c3aed;
}

body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    background: var(--bg);
    color: var(--text-dark);
    min-height: 100vh;
    line-height: 1.5;
}

/* --- Login --- */
.login-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 20px;
}

.login-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 40px;
    width: 100%;
    max-width: 400px;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
}

.login-header {
    text-align: center;
    margin-bottom: 28px;
}

.login-logo {
    width: 64px;
    height: 64px;
    margin-bottom: 12px;
}

.login-title {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-dark);
}

.login-subtitle {
    font-size: 0.85rem;
    color: var(--text-light);
    margin-top: 4px;
}

.login-form .form-group {
    margin-bottom: 20px;
}

.login-form label {
    display: block;
    font-size: 0.85rem;
    color: var(--text-mid);
    margin-bottom: 6px;
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 10px 20px;
    border: none;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.15s ease;
    text-decoration: none;
    font-family: inherit;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-primary {
    background: var(--primary);
    color: #fff;
}

.btn-primary:hover:not(:disabled) {
    background: var(--primary-dark);
}

.btn-secondary {
    background: var(--shadow);
    color: var(--text-mid);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--border);
}

.btn-full {
    width: 100%;
}

.btn-link {
    background: none;
    color: var(--primary);
    padding: 4px 8px;
    font-size: 0.8rem;
    text-decoration: underline;
}

.btn-link:hover:not(:disabled) {
    color: var(--primary-dark);
}

.btn-small {
    padding: 4px 12px;
    font-size: 0.75rem;
}

.btn-unlock {
    background: var(--primary);
    color: #fff;
    margin-left: auto;
}

.btn-unlock:hover:not(:disabled) {
    background: var(--primary-dark);
}

.btn-unlock.active {
    background: var(--danger);
}

.btn-unlock.active:hover:not(:disabled) {
    background: #c62828;
}

.btn-generate {
    width: 100%;
    padding: 14px;
    font-size: 1.05rem;
    background: var(--accent);
    color: #fff;
    border-radius: 10px;
    margin-top: 4px;
}

.btn-generate:hover:not(:disabled) {
    background: var(--accent-hover);
}

.btn-generate:disabled {
    background: var(--text-light);
}

.btn-logout {
    background: none;
    color: var(--text-light);
    padding: 6px 14px;
    font-size: 0.8rem;
    border: 1px solid var(--border);
    border-radius: 6px;
}

.btn-logout:hover {
    color: var(--danger);
    border-color: var(--danger);
}

/* --- Top Bar --- */
.app-container {
    max-width: 660px;
    margin: 0 auto;
    padding: 16px 20px;
}

.top-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
    padding: 0 4px;
}

.top-bar-left {
    display: flex;
    align-items: center;
    gap: 12px;
}

.top-logo {
    width: 40px;
    height: 40px;
}

.top-title {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-dark);
}

.top-subtitle {
    font-size: 0.8rem;
    color: var(--text-light);
}

/* --- Dashboard Grid --- */
.dashboard-grid {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

/* --- Card --- */
.card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 10px;
    overflow: hidden;
}

.card-section-header {
    background: var(--section-bg);
    padding: 8px 14px;
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--text-dark);
    display: flex;
    align-items: center;
}

.card-body {
    padding: 14px 16px 18px;
}

/* --- Form Elements --- */
.field-label {
    font-size: 0.85rem;
    color: var(--text-mid);
    margin-bottom: 4px;
    display: block;
}

.input-field {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 0.95rem;
    font-family: inherit;
    color: var(--text-dark);
    background: #f8fafc;
    outline: none;
    transition: border-color 0.15s;
}

.input-field:focus {
    border-color: var(--primary);
}

.input-field:disabled {
    background: var(--shadow);
    color: var(--text-light);
    cursor: not-allowed;
}

.form-row {
    margin-bottom: 10px;
}

/* --- Radio Buttons --- */
.radio-row {
    padding: 4px 0;
}

.radio-label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.95rem;
    color: var(--text-dark);
    cursor: pointer;
}

.radio-label input[type="radio"] {
    display: none;
}

.radio-custom {
    width: 18px;
    height: 18px;
    border: 2px solid var(--border);
    border-radius: 50%;
    position: relative;
    transition: all 0.15s;
    flex-shrink: 0;
}

.radio-label input[type="radio"]:checked + .radio-custom {
    border-color: var(--color-provisional);
    background: var(--color-provisional);
}

.radio-label input[type="radio"]:checked + .radio-custom::after {
    content: '';
    position: absolute;
    width: 6px;
    height: 6px;
    background: #fff;
    border-radius: 50%;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

/* When consolidated is selected */
.radio-row[data-cert="consolidated"] .radio-label input[type="radio"]:checked + .radio-custom {
    border-color: var(--color-consolidated);
    background: var(--color-consolidated);
}

.template-status {
    font-size: 0.78rem;
    margin-top: 6px;
    padding: 2px 0;
}

.template-status.ok {
    color: #16a34a;
}

.template-status.missing {
    color: var(--danger);
}

/* --- QR Controls --- */
.qr-controls-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
}

.qr-controls-grid .form-row:last-child {
    grid-column: 1 / -1;
}

.size-control {
    display: flex;
    align-items: center;
    gap: 10px;
}

.input-size {
    width: 80px !important;
    flex-shrink: 0;
}

.size-slider {
    flex: 1;
    height: 6px;
    -webkit-appearance: none;
    appearance: none;
    background: var(--shadow);
    border-radius: 3px;
    outline: none;
}

.size-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 16px;
    height: 16px;
    background: var(--primary);
    border-radius: 50%;
    cursor: pointer;
}

.size-slider:disabled {
    opacity: 0.5;
}

.qr-preview-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 10px;
    padding-top: 8px;
    border-top: 1px solid var(--shadow);
}

.qr-preview-text {
    font-size: 0.78rem;
    color: var(--text-light);
}

/* --- Range Grid --- */
.range-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.input-id {
    font-size: 1.05rem;
    padding: 10px 12px;
}

.folio-count-text {
    font-size: 0.78rem;
    color: var(--text-light);
    margin-top: 8px;
    padding-top: 6px;
    border-top: 1px solid var(--shadow);
}

/* --- Progress --- */
.progress-bar-container {
    width: 100%;
    height: 8px;
    background: var(--shadow);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 8px;
}

.progress-bar {
    height: 100%;
    background: var(--accent);
    border-radius: 4px;
    transition: width 0.2s ease;
    width: 0%;
}

.progress-status {
    font-size: 0.85rem;
    color: var(--text-mid);
}

.progress-result {
    margin-top: 10px;
    padding: 12px;
    background: #f0fdf4;
    border: 1px solid #bbf7d0;
    border-radius: 8px;
    font-size: 0.85rem;
    color: #166534;
}

.progress-result.error {
    background: #fef2f2;
    border-color: #fecaca;
    color: #991b1b;
}

.progress-result a,
.progress-result .btn {
    margin-top: 8px;
}

/* --- Template Downloads --- */
.downloads-hint {
    font-size: 0.78rem;
    color: var(--text-light);
    margin-bottom: 10px;
}

.download-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: #f8fafc;
}

.download-row + .download-row {
    margin-top: 8px;
}

.download-info {
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.download-name {
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--text-dark);
}

.download-file {
    font-size: 0.75rem;
    color: var(--text-light);
    word-break: break-all;
}

.btn-download {
    background: var(--primary);
    color: #fff;
    padding: 8px 16px;
    font-size: 0.8rem;
    flex-shrink: 0;
}

.btn-download:hover {
    background: var(--primary-dark);
    color: #fff;
}

.download-missing {
    font-size: 0.75rem;
    color: var(--danger);
    font-weight: 600;
    flex-shrink: 0;
}

/* --- Alert --- */
.alert {
    padding: 10px 14px;
    border-radius: 8px;
    font-size: 0.85rem;
    margin-bottom: 16px;
}

.alert-danger {
    background: #fef2f2;
    border: 1px solid #fecaca;
    color: #991b1b;
}

/* --- Modal --- */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal-card {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 28px;
    width: 100%;
    max-width: 380px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
}

.modal-card h3 {
    font-size: 1.1rem;
    margin-bottom: 8px;
}

.modal-desc {
    font-size: 0.85rem;
    color: var(--text-mid);
    margin-bottom: 16px;
}

.modal-card .input-field {
    margin-bottom: 16px;
}

.modal-actions {
    display: flex;
    gap: 10px;
    justify-content: flex-end;
}

/* --- Responsive --- */
@media (max-width: 500px) {
    .app-container {
        padding: 10px 12px;
    }
    .qr-controls-grid,
    .range-grid {
        grid-template-columns: 1fr;
    }
    .size-control {
        flex-wrap: wrap;
    }
    .size-slider {
        width: 100%;
    }
}