/* =========================================
   LPGT UI System (Halo-Inspired, Theme-Aware)
   A modern, minimal design system that treats
   the theme as the substrate and data as the focus.
   ========================================= */

/* 1. Design Tokens (Scoped to Plugin) */
[class*="lpgt-"], .lpgt-ui {
    /* Spacing Scale (4px base) */
    --lpgt-space-xs: 4px;
    --lpgt-space-sm: 8px;
    --lpgt-space-md: 16px;
    --lpgt-space-lg: 24px;
    --lpgt-space-xl: 40px;

    /* Architectural Radii */
    --lpgt-radius-sm: 6px;
    --lpgt-radius-md: 10px;
    --lpgt-radius-lg: 16px;
    --lpgt-radius-full: 999px;

    /* Colors (Mapped to WP Theme Variables) */
    --lpgt-bg: var(--wp--preset--color--background, #ffffff);
    --lpgt-surface: var(--wp--preset--color--base, #f8f9fa);
    --lpgt-border: var(--wp--preset--color--accent-5, #e5e7eb);
    --lpgt-border-strong: var(--wp--preset--color--accent-4, #d1d5db);
    
    --lpgt-text: var(--wp--preset--color--contrast, #111827);
    --lpgt-text-muted: var(--wp--preset--color--text-muted, #6b7280);
    --lpgt-text-faint: var(--wp--preset--color--accent-5, #9ca3af);
    
    --lpgt-primary: var(--wp--preset--color--primary, #2563eb);
    --lpgt-primary-hover: color-mix(in srgb, var(--lpgt-primary) 85%, black);
    --lpgt-primary-ring: color-mix(in srgb, var(--lpgt-primary) 20%, transparent);
    
    --lpgt-success: var(--wp--preset--color--accent-2, #10b981);
    --lpgt-error: var(--wp--preset--color--accent-6, #ef4444);
    --lpgt-warning: var(--wp--preset--color--accent-3, #f59e0b);

    /* Typography Stacks */
    --lpgt-font-sans: var(--wp--preset--font-family--body, system-ui, -apple-system, sans-serif);
    --lpgt-font-heading: var(--wp--preset--font-family--heading, var(--lpgt-font-sans));
    --lpgt-font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
    
    /* Motion */
    --lpgt-transition: 150ms cubic-bezier(0.2, 0.6, 0.2, 1);
}

/* Base Reset for Plugin Elements */
[class*="lpgt-"] {
    box-sizing: border-box;
    font-family: var(--lpgt-font-sans);
    color: var(--lpgt-text);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* =========================================
   2. Typography & Labels
   ========================================= */
.lpgt-label-sm {
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--lpgt-text-muted);
}

.lpgt-mono {
    font-family: var(--lpgt-font-mono);
    font-variant-numeric: tabular-nums;
}

/* =========================================
   3. Buttons & Inputs
   ========================================= */
[class*="lpgt-"] .button, 
[class*="lpgt-"] button {
    border-radius: var(--lpgt-radius-md);
    font-weight: 500;
    letter-spacing: -0.01em;
    transition: all var(--lpgt-transition);
    box-shadow: none !important; 
    border: 1px solid transparent;
    font-family: var(--lpgt-font-sans);
}

[class*="lpgt-"] .button-primary {
    background: var(--lpgt-primary);
    border-color: var(--lpgt-primary);
    color: #fff;
}
[class*="lpgt-"] .button-primary:hover {
    background: var(--lpgt-primary-hover);
    border-color: var(--lpgt-primary-hover);
    color: #fff;
}

[class*="lpgt-"] .button-secondary {
    background: transparent;
    border: 1px solid var(--lpgt-border-strong);
    color: var(--lpgt-text);
}
[class*="lpgt-"] .button-secondary:hover {
    background: var(--lpgt-surface);
    border-color: var(--lpgt-text-muted);
}

.lpgt-form-field textarea,
.lpgt-form-field input[type="text"],
.lpgt-form-field input[type="email"] {
    width: 100%;
    background: var(--lpgt-surface);
    border: 1px solid var(--lpgt-border);
    border-radius: var(--lpgt-radius-md);
    padding: 10px 14px;
    font-family: var(--lpgt-font-sans);
    font-size: 0.9375rem;
    color: var(--lpgt-text);
    transition: border-color var(--lpgt-transition), box-shadow var(--lpgt-transition);
}

.lpgt-form-field textarea:focus,
.lpgt-form-field input:focus {
    border-color: var(--lpgt-primary);
    box-shadow: 0 0 0 3px var(--lpgt-primary-ring);
    outline: none;
}

/* =========================================
   4. Cards & Surfaces
   ========================================= */
.lpgt-dashboard-card,
.lpgt-lesson-resources,
.lpgt-question-form-container,
.lpgt-instructor-message,
.lpgt-syllabus-progress {
    background: var(--lpgt-bg);
    border: 1px solid var(--lpgt-border);
    border-radius: var(--lpgt-radius-lg);
    padding: var(--lpgt-space-lg);
    transition: border-color var(--lpgt-transition);
}

.lpgt-dashboard-card:hover {
    border-color: var(--lpgt-border-strong);
}

/* =========================================
   5. Progress Metrics & Bars
   ========================================= */
.lpgt-progress-bar-wrapper { margin: var(--lpgt-space-lg) 0; }

.lpgt-progress-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: var(--lpgt-space-sm);
}

.lpgt-progress-title, 
.lpgt-progress-stats,
.lpgt-progress-percentage {
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--lpgt-text-muted);
}

.lpgt-progress-stats,
.lpgt-progress-percentage {
    font-family: var(--lpgt-font-mono);
    color: var(--lpgt-text);
    letter-spacing: 0;
    text-transform: none;
}

.lpgt-progress-track {
    width: 100%;
    height: 6px;
    background: var(--lpgt-surface);
    border: 1px solid var(--lpgt-border);
    border-radius: var(--lpgt-radius-full);
    overflow: hidden;
}

.lpgt-progress-fill {
    height: 100%;
    /* Uses Progress color if set, otherwise Primary, otherwise default blue */
    background: var(--lpgt-progress, var(--lpgt-primary, #2563eb));
    border-radius: var(--lpgt-radius-full);
    transition: width 400ms cubic-bezier(0.2, 0.6, 0.2, 1);
}

/* Complete Button States */
.lpgt-progress-wrapper { margin: var(--lpgt-space-xl) 0; text-align: center; }
.lpgt-complete-spinner { display: none; margin-inline-start: var(--lpgt-space-sm); font-family: var(--lpgt-font-mono); font-size: 0.8125rem; color: var(--lpgt-text-muted); }

.lpgt-progress-completed {
    display: flex;
    align-items: center;
    gap: var(--lpgt-space-md);
    flex-wrap: wrap;
    background: color-mix(in srgb, var(--lpgt-success) 5%, transparent);
    border: 1px solid color-mix(in srgb, var(--lpgt-success) 20%, transparent);
}
.lpgt-progress-icon { color: var(--lpgt-success); font-size: 24px; width: 24px; height: 24px; }
.lpgt-progress-label { font-weight: 600; color: var(--lpgt-text); }
.lpgt-next-btn { margin-inline-start: auto; }
.lpgt-progress-finished { margin-inline-start: auto; font-family: var(--lpgt-font-mono); font-size: 0.8125rem; color: var(--lpgt-text-muted); }

.lpgt-all-done {
    font-weight: 600;
    color: var(--lpgt-success);
    background: color-mix(in srgb, var(--lpgt-success) 5%, transparent);
    border: 1px solid color-mix(in srgb, var(--lpgt-success) 20%, transparent);
    padding: var(--lpgt-space-md);
    border-radius: var(--lpgt-radius-md);
    text-align: center;
}

/* =========================================
   6. Lists & Navigation (Syllabus, Widget, Resources)
   ========================================= */
.lpgt-syllabus-list,
.lpgt-widget-curriculum,
.lpgt-resources-list {
    list-style: none;
    margin: 0;
    padding: 0 !important;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.lpgt-syllabus-section,
.lpgt-widget-section {
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--lpgt-text-muted);
    padding: 12px 16px; /* Matches the item links exactly */
    margin-top: var(--lpgt-space-sm); /* Adds a slight visual break before a new module starts */
    margin-bottom: var(--lpgt-space-sm); /* Creates a small gap between the section header and the first item */
    border-bottom: 1px solid var(--lpgt-border);
}

.lpgt-syllabus-item-link,
.lpgt-widget-item-link,
.lpgt-resource-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border-radius: var(--lpgt-radius-md);
    text-decoration: none;
    color: var(--lpgt-text);
    background: transparent;
    border: 1px solid transparent;
    transition: all var(--lpgt-transition);
}

.lpgt-syllabus-item-link:hover,
.lpgt-widget-item-link:hover,
.lpgt-resource-link:hover {
    background: var(--lpgt-surface);
    border-color: var(--lpgt-border);
}

.lpgt-syllabus-icon .dashicons,
.lpgt-widget-icon .dashicons,
.lpgt-resource-icon {
    font-size: 18px;
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    color: var(--lpgt-text-muted);
}

.lpgt-syllabus-title,
.lpgt-widget-title {
    flex-grow: 1;
    font-weight: 500;
    letter-spacing: -0.01em;
}

/* List Item States */
.lpgt-syllabus-completed .lpgt-syllabus-item-link,
.lpgt-widget-completed .lpgt-widget-item-link {
    background: color-mix(in srgb, var(--lpgt-success) 5%, transparent);
    border-color: color-mix(in srgb, var(--lpgt-success) 20%, transparent);
}
.lpgt-syllabus-completed .dashicons,
.lpgt-widget-completed .dashicons { color: var(--lpgt-success); }

.lpgt-syllabus-locked .lpgt-syllabus-item-link,
.lpgt-widget-locked .lpgt-widget-item-link {
    color: var(--lpgt-text-faint);
    cursor: not-allowed;
}
.lpgt-syllabus-locked .dashicons,
.lpgt-widget-locked .dashicons { color: var(--lpgt-text-faint); }

.lpgt-syllabus-lock-text {
    font-family: var(--lpgt-font-mono);
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

/* Resources Specifics */
.lpgt-resources-title {
    font-family: var(--lpgt-font-heading);
    font-size: 1.125rem;
    font-weight: 600;
    letter-spacing: -0.01em;
    margin: 0 0 var(--lpgt-space-md) 0;
    display: flex;
    align-items: center;
    gap: var(--lpgt-space-sm);
}
.lpgt-resource-ext {
    font-family: var(--lpgt-font-mono);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--lpgt-text-muted);
    background: var(--lpgt-surface);
    padding: 2px 8px;
    border-radius: var(--lpgt-radius-sm);
    border: 1px solid var(--lpgt-border);
}

/* =========================================
   7. Layout & Grids (Dashboard)
   ========================================= */
.lpgt-student-dashboard { margin: var(--lpgt-space-xl) 0; }

.lpgt-dashboard-title {
    font-family: var(--lpgt-font-heading);
    font-size: clamp(1.5rem, 3vw, 2.25rem);
    font-weight: 600;
    letter-spacing: -0.02em;
    color: var(--lpgt-text);
    margin-bottom: var(--lpgt-space-lg);
}

.lpgt-dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--lpgt-space-lg);
}

.lpgt-dashboard-card { display: flex; flex-direction: column; overflow: hidden; padding: 0; }
.lpgt-dashboard-card-image { width: 100%; aspect-ratio: 16 / 9; overflow: hidden; background: var(--lpgt-surface); border-bottom: 1px solid var(--lpgt-border); }
.lpgt-dashboard-thumb { width: 100%; height: 100%; object-fit: cover; transition: transform 400ms cubic-bezier(0.2, 0.6, 0.2, 1); }
.lpgt-dashboard-card:hover .lpgt-dashboard-thumb { transform: scale(1.02); }

.lpgt-dashboard-card-content {
    padding: var(--lpgt-space-lg);
    display: flex;
    flex-direction: column;
    flex-grow: 1;
    gap: var(--lpgt-space-md);
}

.lpgt-dashboard-card-title {
    font-family: var(--lpgt-font-heading);
    font-size: 1.25rem;
    font-weight: 600;
    letter-spacing: -0.01em;
    margin: 0;
    line-height: 1.3;
}
.lpgt-dashboard-card-title a { color: var(--lpgt-text); text-decoration: none; }
.lpgt-dashboard-card-title a:hover { color: var(--lpgt-primary); }

.lpgt-dashboard-progress { margin: 0; }
.lpgt-dashboard-btn { margin-top: auto; width: 100%; text-align: center; justify-content: center; }

.lpgt-dashboard-empty {
    text-align: center;
    padding: var(--lpgt-space-xl);
    background: var(--lpgt-surface);
    border: 1px dashed var(--lpgt-border-strong);
    border-radius: var(--lpgt-radius-lg);
}

/* =========================================
   8. Universal Taxonomy Badges
   ========================================= */
.lpgt-tax-badge {
    display: inline-flex;
    align-items: center;
    height: 24px;
    padding: 0 10px;
    border-radius: var(--lpgt-radius-full);
    font-family: var(--lpgt-font-mono);
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.02em;
    background: var(--lpgt-surface);
    border: 1px solid var(--lpgt-border);
    color: var(--lpgt-text-muted);
    margin-right: 6px;
    margin-bottom: 6px;
}

.lpgt-tax-badge-link {
    display: inline-block;
    text-decoration: none;
    margin-right: 6px;
    margin-bottom: 6px;
}

.lpgt-tax-badge-link:hover .lpgt-tax-badge {
    border-color: var(--lpgt-primary);
    color: var(--lpgt-primary);
}

/* --- Difficulty Specific Colors (Legacy Support) --- */
.lpgt-level-1 { border-color: color-mix(in srgb, var(--lpgt-success) 30%, transparent); color: var(--lpgt-success); }
.lpgt-level-2 { border-color: color-mix(in srgb, var(--lpgt-warning) 30%, transparent); color: var(--lpgt-warning); }
.lpgt-level-3 { border-color: color-mix(in srgb, var(--lpgt-error) 30%, transparent); color: var(--lpgt-error); }

/* --- Example: Target specific terms from ANY taxonomy --- */
/* If you create an Instrument term with the slug 'piano' */
.lpgt-term-piano { border-color: color-mix(in srgb, var(--lpgt-primary) 30%, transparent); color: var(--lpgt-primary); }

/* =========================================
   9. Alerts & Callouts
   ========================================= */
.lpgt-instructor-message {
    display: flex;
    gap: var(--lpgt-space-md);
    border-left: 2px solid var(--lpgt-primary);
    background: var(--lpgt-surface);
}
.lpgt-instructor-message-icon .dashicons { font-size: 24px; width: 24px; height: 24px; color: var(--lpgt-primary); }
.lpgt-instructor-message-title { margin: 0 0 var(--lpgt-space-xs) 0; font-size: 0.75rem; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--lpgt-text-muted); }
.lpgt-instructor-message-text { margin: 0; font-size: 0.9375rem; line-height: 1.6; color: var(--lpgt-text); }
.lpgt-instructor-message-text p { margin-bottom: var(--lpgt-space-sm); }
.lpgt-instructor-message-text p:last-child { margin-bottom: 0; }

/* Question Form */
.lpgt-ask-question-wrapper { margin: var(--lpgt-space-xl) 0; }
.lpgt-form-context { font-family: var(--lpgt-font-mono); font-size: 0.8125rem; color: var(--lpgt-text-muted); margin-bottom: var(--lpgt-space-md); }
.lpgt-form-field label { display: block; font-size: 0.75rem; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: var(--lpgt-space-xs); color: var(--lpgt-text-muted); }
.lpgt-form-actions { display: flex; align-items: center; gap: var(--lpgt-space-sm); margin-top: var(--lpgt-space-md); }
.lpgt-form-spinner { font-family: var(--lpgt-font-mono); font-size: 0.8125rem; color: var(--lpgt-text-muted); }

.lpgt-form-status {
    margin-top: var(--lpgt-space-md);
    padding: 12px 16px;
    border-radius: var(--lpgt-radius-md);
    font-size: 0.875rem;
    font-weight: 500;
    display: none;
}
.lpgt-form-status.success {
    background: color-mix(in srgb, var(--lpgt-success) 5%, transparent);
    color: var(--lpgt-success);
    border: 1px solid color-mix(in srgb, var(--lpgt-success) 20%, transparent);
}
.lpgt-form-status.error {
    background: color-mix(in srgb, var(--lpgt-error) 5%, transparent);
    color: var(--lpgt-error);
    border: 1px solid color-mix(in srgb, var(--lpgt-error) 20%, transparent);
}

.lpgt-progress-login, .lpgt-dashboard-login {
    text-align: center;
    padding: var(--lpgt-space-md);
    background: var(--lpgt-surface);
    border: 1px solid var(--lpgt-border);
    border-radius: var(--lpgt-radius-md);
    color: var(--lpgt-text-muted);
}

/* =========================================
   12. Member Block Denied States
   ========================================= */
.lpgt-block-denied {
    padding: var(--lpgt-space-lg);
    background: var(--lpgt-surface);
    border: 1px dashed var(--lpgt-border-strong);
    border-radius: var(--lpgt-radius-md);
    text-align: center;
    color: var(--lpgt-text-muted);
    font-size: 0.9375rem;
    margin: var(--lpgt-space-lg) 0;
}

.lpgt-block-denied a {
    color: var(--lpgt-primary);
    font-weight: 600;
    text-decoration: underline;
}

/* =========================================
   13. Admin Preview for Restricted Content
   ========================================= */
.lpgt-admin-preview-restricted {
    position: relative;
    border: 2px dashed #94a3b8; /* Light grey dashed border */
    border-radius: 8px;
    padding: 24px 20px 20px;
    margin: 20px 0;
    opacity: 0.75; /* Slightly faded */
    background: rgba(148, 163, 184, 0.03);
    transition: opacity 0.2s ease;
}

/* Restore full opacity on hover so it's easier to read/proofread */
.lpgt-admin-preview-restricted:hover {
    opacity: 1; 
}

.lpgt-admin-preview-notice {
    position: absolute;
    top: -11px;
    left: 16px;
    background: var(--lpgt-bg, #ffffff);
    padding: 2px 10px;
    font-size: 11px;
    font-weight: 600;
    color: #64748b;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border: 1px solid #cbd5e1;
    border-radius: 4px;
    box-shadow: 0 1px 2px rgba(0,0,0,0.05);
    line-height: 1.4;
    white-space: nowrap;
}