/**
 * Reflectum – Main Stylesheet
 * Dark/light mode via Bootstrap 5.3 data-bs-theme attribute.
 * Professional, structured, app-like design.
 */

/* ==========================================================================
   1. Custom Properties
   ========================================================================== */

:root,
[data-bs-theme="light"] {
    --rf-bg:             #ffffff;
    --rf-bg-secondary:   #f5f6f8;
    --rf-text:           #212529;
    --rf-text-muted:     #6c757d;
    --rf-border:         #dee2e6;
    --rf-border-subtle:  #e9ecef;
    --rf-primary:        #4a6fa5;
    --rf-primary-hover:  #3b5d8c;
    --rf-accent:         #4a6fa5;
    --rf-accent-light:   rgba(74, 111, 165, 0.08);
    --rf-card-bg:        #ffffff;
    --rf-card-shadow:    0 1px 3px rgba(0,0,0,0.06);
    --rf-sidebar-bg:     #f8f9fa;
    --rf-sidebar-active: rgba(74, 111, 165, 0.10);
    --rf-navbar-bg:      #ffffff;
    --rf-loading-bar:    var(--rf-primary);
    --rf-transition:     0.2s ease;
}

[data-bs-theme="dark"] {
    --rf-bg:             #1a1a2e;
    --rf-bg-secondary:   #16213e;
    --rf-text:           #e0e0e0;
    --rf-text-muted:     #8e99a4;
    --rf-border:         #2a2a4a;
    --rf-border-subtle:  #232345;
    --rf-primary:        #6b8fc7;
    --rf-primary-hover:  #84a6d8;
    --rf-accent:         #6b8fc7;
    --rf-accent-light:   rgba(107, 143, 199, 0.10);
    --rf-card-bg:        #1e1e3a;
    --rf-card-shadow:    0 1px 3px rgba(0,0,0,0.25);
    --rf-sidebar-bg:     #16213e;
    --rf-sidebar-active: rgba(107, 143, 199, 0.15);
    --rf-navbar-bg:      #16213e;
    --rf-loading-bar:    var(--rf-primary);
}

/* ==========================================================================
   2. Body & Typography
   ========================================================================== */

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
                 "Helvetica Neue", Arial, sans-serif;
    font-size: 0.925rem;
    line-height: 1.6;
    color: var(--rf-text);
    background-color: var(--rf-bg);
    transition: background-color var(--rf-transition), color var(--rf-transition);
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
}

a {
    color: var(--rf-primary);
    text-decoration: none;
    transition: color var(--rf-transition);
}
a:hover {
    color: var(--rf-primary-hover);
}

/* ==========================================================================
   3. Navbar
   ========================================================================== */

.navbar {
    background-color: var(--rf-navbar-bg) !important;
    border-bottom: 1px solid var(--rf-border) !important;
    padding-top: 0.4rem;
    padding-bottom: 0.4rem;
    transition: background-color var(--rf-transition), border-color var(--rf-transition);
}

.navbar .navbar-brand {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--rf-text);
    letter-spacing: -0.01em;
}

.navbar .nav-link {
    font-size: 0.875rem;
    color: var(--rf-text-muted);
    padding: 0.4rem 0.75rem;
    border-radius: 0.25rem;
    transition: color var(--rf-transition), background-color var(--rf-transition);
}
.navbar .nav-link:hover,
.navbar .nav-link.active {
    color: var(--rf-text);
    background-color: var(--rf-accent-light);
}

/* ==========================================================================
   4. Content Area
   ========================================================================== */

.rf-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 1.5rem 1rem;
    animation: rfFadeIn 0.2s ease-out;
}

@keyframes rfFadeIn {
    from { opacity: 0; transform: translateY(4px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ==========================================================================
   5. Entry Cards (Journal)
   ========================================================================== */

.entry-card {
    background-color: var(--rf-card-bg);
    border: 1px solid var(--rf-border-subtle);
    border-radius: 0.5rem;
    box-shadow: var(--rf-card-shadow);
    padding: 1.25rem;
    margin-bottom: 1rem;
    transition: border-color var(--rf-transition), box-shadow var(--rf-transition),
                background-color var(--rf-transition);
}
.entry-card:hover {
    border-color: var(--rf-border);
    box-shadow: 0 2px 6px rgba(0,0,0,0.08);
}

.entry-card .entry-date {
    font-size: 0.8rem;
    color: var(--rf-text-muted);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    margin-bottom: 0.5rem;
}

.entry-card .entry-body {
    font-size: 0.925rem;
    line-height: 1.65;
    color: var(--rf-text);
}

/* ==========================================================================
   6. Today Page
   ========================================================================== */

.today-textarea {
    width: 100%;
    min-height: 240px;
    padding: 1rem;
    font-size: 1rem;
    line-height: 1.7;
    border: 1px solid var(--rf-border);
    border-radius: 0.5rem;
    background-color: var(--rf-card-bg);
    color: var(--rf-text);
    resize: vertical;
    transition: border-color var(--rf-transition), box-shadow var(--rf-transition),
                background-color var(--rf-transition);
}
.today-textarea:focus {
    outline: none;
    border-color: var(--rf-primary);
    box-shadow: 0 0 0 3px var(--rf-accent-light);
}

/* ==========================================================================
   7. Theme Cards
   ========================================================================== */

.theme-card {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.35rem 0.75rem;
    font-size: 0.8rem;
    font-weight: 500;
    border: 1px solid var(--rf-border);
    border-radius: 2rem;
    background-color: var(--rf-accent-light);
    color: var(--rf-primary);
    transition: background-color var(--rf-transition), border-color var(--rf-transition);
    cursor: default;
}
.theme-card:hover {
    background-color: var(--rf-primary);
    color: #fff;
    border-color: var(--rf-primary);
}
.theme-card i {
    font-size: 0.7rem;
}

/* ==========================================================================
   8. AI Questions
   ========================================================================== */

.ai-question {
    position: relative;
    padding: 0.75rem 1rem 0.75rem 1.25rem;
    margin-bottom: 0.75rem;
    border-left: 3px solid var(--rf-primary);
    background-color: var(--rf-accent-light);
    border-radius: 0 0.375rem 0.375rem 0;
    font-size: 0.9rem;
    line-height: 1.55;
    color: var(--rf-text);
    transition: background-color var(--rf-transition);
}
.ai-question::before {
    content: "\f059"; /* fa-circle-question */
    font-family: "Font Awesome 6 Free";
    font-weight: 400;
    position: absolute;
    top: 0.75rem;
    left: -0.55rem;
    background: var(--rf-bg);
    color: var(--rf-primary);
    font-size: 0.75rem;
    width: 1.1rem;
    height: 1.1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

/* ==========================================================================
   9. Summary Display
   ========================================================================== */

.summary-text {
    font-size: 0.85rem;
    color: var(--rf-text-muted);
    line-height: 1.55;
    padding: 0.75rem 0;
    border-top: 1px solid var(--rf-border-subtle);
    margin-top: 0.75rem;
}
.summary-text .summary-label {
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin-bottom: 0.25rem;
    color: var(--rf-text-muted);
}

/* ==========================================================================
   10. Settings Sections
   ========================================================================== */

.settings-section {
    padding: 1.25rem 0;
    border-bottom: 1px solid var(--rf-border-subtle);
}
.settings-section:last-child {
    border-bottom: none;
}
.settings-section h5,
.settings-section h6 {
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--rf-text);
}
.settings-section .form-text {
    font-size: 0.8rem;
    color: var(--rf-text-muted);
}

/* ==========================================================================
   11. Sidebar Navigation
   ========================================================================== */

.app-sidebar {
    width: 220px;
    min-height: 100vh;
    background-color: var(--rf-sidebar-bg);
    border-right: 1px solid var(--rf-border);
    padding: 1rem 0;
    transition: background-color var(--rf-transition), border-color var(--rf-transition);
}

.app-sidebar .nav-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    font-size: 0.85rem;
    color: var(--rf-text-muted);
    border-radius: 0;
    transition: color var(--rf-transition), background-color var(--rf-transition);
}
.app-sidebar .nav-link:hover {
    color: var(--rf-text);
    background-color: var(--rf-sidebar-active);
}
.app-sidebar .nav-link.active {
    color: var(--rf-primary);
    background-color: var(--rf-sidebar-active);
    font-weight: 500;
}
.app-sidebar .nav-link i {
    width: 1.25rem;
    text-align: center;
    font-size: 0.85rem;
}

/* Sidebar label / section header */
.app-sidebar .sidebar-heading {
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--rf-text-muted);
    padding: 1rem 1rem 0.3rem;
}

/* ==========================================================================
   12. PJAX Loading Indicator
   ========================================================================== */

.pjax-loading {
    position: fixed;
    top: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--rf-loading-bar);
    z-index: 9999;
    transition: width 0.3s ease;
    pointer-events: none;
}
.pjax-loading.active {
    width: 80%;
    transition: width 8s cubic-bezier(0.1, 0.5, 0.3, 1);
}
.pjax-loading.done {
    width: 100%;
    opacity: 0;
    transition: width 0.15s ease, opacity 0.3s ease 0.15s;
}

/* ==========================================================================
   13. Toast Overrides
   ========================================================================== */

.toast {
    border: 1px solid var(--rf-border);
    border-radius: 0.5rem;
    box-shadow: 0 4px 12px rgba(0,0,0,0.12);
    font-size: 0.875rem;
}
[data-bs-theme="dark"] .toast {
    background-color: var(--rf-card-bg);
    color: var(--rf-text);
    border-color: var(--rf-border);
}

/* ==========================================================================
   14. Theme Toggle Button
   ========================================================================== */

.theme-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2rem;
    height: 2rem;
    border: 1px solid var(--rf-border);
    border-radius: 0.375rem;
    background: transparent;
    color: var(--rf-text-muted);
    cursor: pointer;
    transition: color var(--rf-transition), border-color var(--rf-transition),
                background-color var(--rf-transition);
    font-size: 0.85rem;
    padding: 0;
    line-height: 1;
}
.theme-toggle:hover {
    color: var(--rf-text);
    border-color: var(--rf-text-muted);
    background-color: var(--rf-accent-light);
}

/* ==========================================================================
   15. Admin Dashboard
   ========================================================================== */

.admin-stat-card {
    background-color: var(--rf-card-bg);
    border: 1px solid var(--rf-border-subtle);
    border-radius: 0.5rem;
    padding: 1.25rem;
    box-shadow: var(--rf-card-shadow);
    transition: border-color var(--rf-transition), background-color var(--rf-transition);
}
.admin-stat-card .stat-value {
    font-size: 1.75rem;
    font-weight: 700;
    line-height: 1.2;
    color: var(--rf-text);
}
.admin-stat-card .stat-label {
    font-size: 0.78rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--rf-text-muted);
    margin-top: 0.25rem;
}
.admin-stat-card .stat-icon {
    font-size: 1.5rem;
    color: var(--rf-primary);
    opacity: 0.6;
}

/* ==========================================================================
   16. Responsive & Layout Utilities
   ========================================================================== */

@media (max-width: 767.98px) {
    .app-sidebar {
        display: none;
    }
    .rf-content {
        padding: 1rem 0.75rem;
    }
    .today-textarea {
        min-height: 180px;
    }
    .admin-stat-card .stat-value {
        font-size: 1.4rem;
    }
}

@media (min-width: 768px) {
    .app-layout {
        display: flex;
    }
    .app-layout .app-main {
        flex: 1;
        min-width: 0;
    }
}

/* Smooth color-mode transition on all common elements */
.card, .btn, .form-control, .form-select, .modal-content, .dropdown-menu,
.list-group-item, .table, footer {
    transition: background-color var(--rf-transition), color var(--rf-transition),
                border-color var(--rf-transition);
}

/* PJAX content fade */
#pjax-container {
    animation: rfFadeIn 0.15s ease-out;
}

/* Scrollbar (subtle, Webkit) */
::-webkit-scrollbar {
    width: 6px;
}
::-webkit-scrollbar-track {
    background: transparent;
}
::-webkit-scrollbar-thumb {
    background-color: var(--rf-border);
    border-radius: 3px;
}
[data-bs-theme="dark"] ::-webkit-scrollbar-thumb {
    background-color: var(--rf-border);
}