/* Kimberly Event Logger - Mobile-First Responsive Styles */

/* === CSS Custom Properties === */
:root {
    --color-primary: #2563eb;
    --color-primary-hover: #1d4ed8;
    --color-danger: #dc2626;
    --color-danger-hover: #b91c1c;
    --color-success: #16a34a;
    --color-warning: #f59e0b;
    --color-bg: #f8fafc;
    --color-surface: #ffffff;
    --color-text: #1e293b;
    --color-text-secondary: #64748b;
    --color-border: #e2e8f0;
    --color-recording: #ef4444;
    --radius: 8px;
    --radius-lg: 12px;
    --shadow: 0 1px 3px rgba(0,0,0,0.1), 0 1px 2px rgba(0,0,0,0.06);
    --shadow-lg: 0 4px 6px rgba(0,0,0,0.1), 0 2px 4px rgba(0,0,0,0.06);
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
}

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

body {
    font-family: var(--font-family);
    font-size: 16px;
    line-height: 1.5;
    color: var(--color-text);
    background: var(--color-bg);
    min-height: 100vh;
}

.hidden {
    display: none !important;
}

/* === Layout === */
.page-container {
    max-width: 600px;
    margin: 0 auto;
    padding: var(--spacing-md);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.page-container.wide {
    max-width: 1200px;
}

/* === Header === */
.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid var(--color-border);
    margin-bottom: var(--spacing-lg);
}

.app-header h1 {
    font-size: 1.25rem;
    font-weight: 600;
}

.header-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.btn-logout {
    background: none;
    border: 1px solid var(--color-border);
    color: var(--color-text-secondary);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius);
    cursor: pointer;
    font-size: 0.875rem;
}

.btn-logout:hover {
    background: var(--color-bg);
}

/* === Forms (Login Pages) === */
.login-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: var(--spacing-xl) var(--spacing-md);
}

.login-card {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-xl);
    width: 100%;
    max-width: 400px;
}

.login-card h1 {
    font-size: 1.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--spacing-xs);
}

.login-card .subtitle {
    text-align: center;
    color: var(--color-text-secondary);
    font-size: 0.875rem;
    margin-bottom: var(--spacing-lg);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
    color: var(--color-text);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px var(--spacing-md);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    font-size: 1rem;
    font-family: var(--font-family);
    color: var(--color-text);
    background: var(--color-surface);
    transition: border-color 0.15s;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(37,99,235,0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* === Buttons === */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    min-height: 48px;
    padding: 12px var(--spacing-lg);
    border: none;
    border-radius: var(--radius);
    font-size: 1rem;
    font-weight: 600;
    font-family: var(--font-family);
    cursor: pointer;
    transition: background-color 0.15s, transform 0.1s;
    width: 100%;
    text-align: center;
}

.btn:active {
    transform: scale(0.98);
}

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

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

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

.btn-danger {
    background: var(--color-danger);
    color: white;
}

.btn-danger:hover:not(:disabled) {
    background: var(--color-danger-hover);
}

.btn-success {
    background: var(--color-success);
    color: white;
}

.btn-success:hover:not(:disabled) {
    background: #15803d;
}

.btn-outline {
    background: var(--color-surface);
    color: var(--color-text);
    border: 1px solid var(--color-border);
}

.btn-outline:hover:not(:disabled) {
    background: var(--color-bg);
}

.btn-secondary {
    background: var(--color-bg);
    color: var(--color-text);
    border: 1px solid var(--color-border);
}

.btn-secondary:hover:not(:disabled) {
    background: #e2e8f0;
}

/* === Action Buttons (Event Logger Main View) === */
.action-buttons {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin: var(--spacing-xl) 0;
}

.btn-action {
    min-height: 64px;
    font-size: 1.125rem;
    border-radius: var(--radius-lg);
}

.btn-action .btn-icon {
    font-size: 1.5rem;
    line-height: 1;
}

/* === Recording View === */
.recording-view {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-lg);
    padding: var(--spacing-xl) 0;
}

.recording-indicator {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: var(--color-recording);
    animation: pulse 1.5s ease-in-out infinite;
    display: flex;
    align-items: center;
    justify-content: center;
}

.recording-indicator::after {
    content: '';
    width: 24px;
    height: 24px;
    border-radius: 4px;
    background: white;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.1); opacity: 0.8; }
}

.recording-timer {
    font-size: 2.5rem;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
    color: var(--color-recording);
}

.recording-label {
    color: var(--color-text-secondary);
    font-size: 0.875rem;
}

.recording-buttons {
    display: flex;
    gap: var(--spacing-md);
    width: 100%;
}

.recording-buttons .btn {
    flex: 1;
}

/* === Processing / Loading === */
.processing-view {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-xl) 0;
}

.spinner {
    width: 48px;
    height: 48px;
    border: 4px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

.processing-text {
    color: var(--color-text-secondary);
}

/* === Text Entry View === */
.text-entry-view {
    padding: var(--spacing-md) 0;
}

.char-counter {
    text-align: right;
    font-size: 0.75rem;
    color: var(--color-text-secondary);
    margin-top: var(--spacing-xs);
}

.char-counter.over-limit {
    color: var(--color-danger);
    font-weight: 600;
}

.text-buttons {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.text-buttons .btn {
    flex: 1;
}

/* === Confirmation View === */
.confirmation-view {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-lg);
    margin: var(--spacing-md) 0;
}

.confirmation-view h2 {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-md);
}

.confirm-field {
    margin-bottom: var(--spacing-md);
}

.confirm-field .field-label {
    display: block;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xs);
}

.confirm-field .field-value {
    font-size: 0.9375rem;
    color: var(--color-text);
    background: var(--color-bg);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius);
    border: 1px solid var(--color-border);
}

.confidence-badge {
    display: inline-block;
    padding: 2px 10px;
    border-radius: 999px;
    font-size: 0.875rem;
    font-weight: 600;
    background: #dcfce7;
    color: #166534;
}

.confidence-badge.low-confidence {
    background: #fef3c7;
    color: #92400e;
}

.confirm-actions {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.confirm-actions .btn {
    flex: 1;
}

/* === Recent Events === */
.recent-events {
    margin-top: var(--spacing-xl);
}

.recent-events h2 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--color-text-secondary);
}

.recent-event-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

.event-date {
    font-size: 0.75rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xs);
}

.event-summary {
    font-size: 0.9375rem;
    margin-bottom: var(--spacing-xs);
}

.event-meta {
    display: flex;
    gap: var(--spacing-sm);
    font-size: 0.75rem;
}

.event-category {
    background: #eff6ff;
    color: var(--color-primary);
    padding: 1px 8px;
    border-radius: 999px;
}

.event-method {
    color: var(--color-text-secondary);
}

.empty-state {
    text-align: center;
    color: var(--color-text-secondary);
    padding: var(--spacing-lg);
    font-size: 0.875rem;
}

/* === Messages === */
.message-area {
    min-height: 24px;
    border-radius: var(--radius);
    padding: 0;
    margin-bottom: var(--spacing-sm);
    font-size: 0.875rem;
    text-align: center;
    transition: all 0.2s;
}

.message-area.error {
    background: #fef2f2;
    color: var(--color-danger);
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid #fecaca;
}

.message-area.success {
    background: #f0fdf4;
    color: var(--color-success);
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid #bbf7d0;
}

/* === Admin Dashboard === */
.filter-bar {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    align-items: flex-end;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    flex: 1;
    min-width: 140px;
}

.filter-group label {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-text-secondary);
}

.filter-group input,
.filter-group select {
    padding: 8px 10px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    font-size: 0.875rem;
    font-family: var(--font-family);
}

.filter-group input:focus,
.filter-group select:focus {
    outline: none;
    border-color: var(--color-primary);
}

.filter-actions {
    display: flex;
    gap: var(--spacing-sm);
    align-items: flex-end;
}

.filter-actions .btn {
    min-height: 38px;
    padding: 8px var(--spacing-md);
    font-size: 0.875rem;
    width: auto;
}

.checkbox-group {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    min-height: 38px;
}

.checkbox-group input[type="checkbox"] {
    width: 18px;
    height: 18px;
}

.checkbox-group label {
    font-size: 0.875rem;
    font-weight: 400;
    color: var(--color-text);
}

/* === Stats Bar === */
.stats-bar {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.stat-card {
    flex: 1;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: var(--spacing-md);
    text-align: center;
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
}

.stat-label {
    font-size: 0.75rem;
    color: var(--color-text-secondary);
    margin-top: var(--spacing-xs);
}

/* === Events Table === */
.table-container {
    overflow-x: auto;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
}

.events-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}

.events-table th {
    background: var(--color-bg);
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-secondary);
    padding: var(--spacing-sm) var(--spacing-md);
    text-align: left;
    white-space: nowrap;
    border-bottom: 1px solid var(--color-border);
}

.events-table td {
    padding: var(--spacing-sm) var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
    vertical-align: top;
}

.events-table tr:last-child td {
    border-bottom: none;
}

.low-confidence-row {
    background: #fffbeb;
}

.summary-cell {
    max-width: 300px;
}

.empty-cell,
.error-cell {
    text-align: center;
    padding: var(--spacing-xl) !important;
    color: var(--color-text-secondary);
}

.error-cell {
    color: var(--color-danger);
}

.flag-unknown {
    display: inline-block;
    background: #fef3c7;
    color: #92400e;
    padding: 1px 8px;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 600;
}

/* === Loading Indicator === */
#loading-indicator {
    display: flex;
    justify-content: center;
    padding: var(--spacing-lg);
}

/* === Link Styles === */
.alt-link {
    display: block;
    text-align: center;
    margin-top: var(--spacing-md);
    color: var(--color-primary);
    text-decoration: none;
    font-size: 0.875rem;
}

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

/* === Responsive: Tablet + Desktop === */
@media (min-width: 768px) {
    .page-container {
        padding: var(--spacing-xl);
    }

    .action-buttons {
        flex-direction: row;
    }

    .action-buttons .btn-action {
        flex: 1;
    }

    .filter-bar {
        flex-wrap: nowrap;
    }

    .stats-bar {
        gap: var(--spacing-lg);
    }
}

@media (min-width: 1024px) {
    .login-container {
        padding: var(--spacing-xl);
    }

    .events-table {
        font-size: 0.9375rem;
    }
}