/* ==========================================================================
   BASE & THEME STYLES
   ========================================================================== */
:root {
    /* DEFAULT: LIGHT THEME VARIABLES */
    --bg-main: #f8fafc;
    --bg-card: #ffffff;
    --bg-sidebar: #ffffff;
    --border-color: #e2e8f0;
    --border-color-light: rgba(0, 0, 0, 0.04);
    --border-color-hover: #cbd5e1;
    
    --color-text-main: #0f172a;
    --color-text-muted: #64748b;
    
    --bg-hover: rgba(0, 0, 0, 0.03);
    --bg-status: #f1f5f9;
    --bg-input: #ffffff;
    --bg-task-item: #f8fafc;
    --bg-day-column: #f1f5f9;
    --bg-task-card: #ffffff;
    --bg-overlay: rgba(255, 255, 255, 0.85);
    
    --scrollbar-thumb: rgba(0, 0, 0, 0.12);
    --scrollbar-thumb-hover: rgba(0, 0, 0, 0.22);
    
    --shadow-card: 0 8px 32px 0 rgba(148, 163, 184, 0.08);
    --shadow-hover: 0 4px 20px rgba(148, 163, 184, 0.12);
    --shadow-task-hover: 0 4px 10px rgba(148, 163, 184, 0.06);
    
    --bg-today: rgba(139, 92, 246, 0.04);
    --shadow-today: 0 0 15px rgba(139, 92, 246, 0.05);
    
    --bg-secondary-btn: rgba(0, 0, 0, 0.04);
    --bg-secondary-btn-hover: rgba(0, 0, 0, 0.08);
    
    --shadow-ai: 0 4px 12px rgba(139, 92, 246, 0.25);
    
    --color-text-emerald-active: #059669;
    
    /* Accents */
    --accent-purple: #8b5cf6;
    --accent-purple-glow: rgba(139, 92, 246, 0.1);
    --accent-cyan: #06b6d4;
    --accent-cyan-glow: rgba(6, 182, 212, 0.15);
    --accent-emerald: #10b981;
    --accent-emerald-glow: rgba(16, 185, 129, 0.1);
    --accent-amber: #f59e0b;
    --accent-rose: #ef4444;
    
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
}

body.dark-theme {
    /* DARK THEME VARIABLES OVERRIDE */
    --bg-main: #0a0d16;
    --bg-card: rgba(20, 27, 45, 0.65);
    --bg-sidebar: #0e1220;
    --border-color: rgba(255, 255, 255, 0.08);
    --border-color-light: rgba(255, 255, 255, 0.05);
    --border-color-hover: rgba(255, 255, 255, 0.15);
    
    --color-text-main: #f3f4f6;
    --color-text-muted: #9ca3af;
    
    --bg-hover: rgba(255, 255, 255, 0.02);
    --bg-status: rgba(0, 0, 0, 0.25);
    --bg-input: rgba(0, 0, 0, 0.2);
    --bg-task-item: rgba(0, 0, 0, 0.15);
    --bg-day-column: rgba(15, 23, 42, 0.45);
    --bg-task-card: #151c30;
    --bg-overlay: rgba(10, 13, 22, 0.85);
    
    --scrollbar-thumb: rgba(255, 255, 255, 0.08);
    --scrollbar-thumb-hover: rgba(255, 255, 255, 0.18);
    
    --shadow-card: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
    --shadow-hover: 0 4px 20px rgba(0, 0, 0, 0.3);
    --shadow-task-hover: 0 4px 10px rgba(0, 0, 0, 0.25);
    
    --bg-today: rgba(168, 85, 247, 0.03);
    --shadow-today: 0 0 15px rgba(168, 85, 247, 0.05);
    
    --bg-secondary-btn: rgba(255, 255, 255, 0.05);
    --bg-secondary-btn-hover: rgba(255, 255, 255, 0.08);
    
    --shadow-ai: 0 4px 15px rgba(168, 85, 247, 0.35);
    
    --color-text-emerald-active: #34d399;
    
    --accent-purple: #a855f7;
    --accent-purple-glow: rgba(168, 85, 247, 0.15);
    --accent-cyan: #06b6d4;
    --accent-cyan-glow: rgba(6, 182, 212, 0.15);
    --accent-emerald: #10b981;
    --accent-emerald-glow: rgba(16, 185, 129, 0.15);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background-color: var(--bg-main);
    color: var(--color-text-main);
    font-family: var(--font-body);
    font-size: 14px;
    line-height: 1.5;
    overflow-x: hidden;
}

/* Scrollbar styling */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
::-webkit-scrollbar-track {
    background: transparent;
}
::-webkit-scrollbar-thumb {
    background: var(--scrollbar-thumb);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--scrollbar-thumb-hover);
}

/* ==========================================================================
   APP LAYOUT & SIDEBAR
   ========================================================================== */
.app-layout {
    display: grid;
    grid-template-columns: 260px 1fr;
    height: 100vh;
    overflow: hidden;
}

.sidebar {
    background-color: var(--bg-sidebar);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.sidebar-header {
    padding: 24px;
    border-bottom: 1px solid var(--border-color);
}

.logo-container {
    position: relative;
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-glow {
    position: absolute;
    width: 32px;
    height: 32px;
    background: radial-gradient(circle, var(--accent-purple) 0%, transparent 70%);
    opacity: 0.5;
    filter: blur(4px);
    z-index: 1;
}

.logo-icon {
    width: 32px;
    height: 32px;
    position: relative;
    z-index: 2;
}

.logo-text {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 20px;
    letter-spacing: -0.5px;
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.sidebar-nav {
    flex: 1;
    padding: 24px 16px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    overflow-y: auto;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    color: var(--color-text-muted);
    text-decoration: none;
    border-radius: 8px;
    font-weight: 500;
    transition: var(--transition-fast);
    border-left: 3px solid transparent;
}

.nav-item:hover {
    color: var(--color-text-main);
    background-color: var(--bg-hover);
}

.nav-item.active {
    color: var(--color-text-main);
    background: linear-gradient(90deg, rgba(168, 85, 247, 0.1) 0%, transparent 100%);
    border-left-color: var(--accent-purple);
}

.nav-icon {
    width: 18px;
    height: 18px;
}

.sidebar-footer {
    padding: 20px 16px;
    border-top: 1px solid var(--border-color);
}

.status-panel {
    background: var(--bg-status);
    border-radius: 8px;
    padding: 12px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.status-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 11px;
}

.status-label {
    color: var(--color-text-muted);
}

/* ==========================================================================
   MAIN MAIN PANELS
   ========================================================================== */
.main-container {
    display: flex;
    flex-direction: column;
    height: 100%;
    overflow: hidden;
}

.top-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 32px;
    border-bottom: 1px solid var(--border-color);
}

.view-title {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 24px;
    color: var(--color-text-main);
}

.view-desc {
    font-size: 13px;
    color: var(--color-text-muted);
    margin-top: 2px;
}

.content-panel {
    flex: 1;
    padding: 32px;
    overflow-y: auto;
}

.view-section {
    display: none;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.view-section.active {
    display: block;
    opacity: 1;
}

/* ==========================================================================
   GLASSMORPHISM & GENERAL STYLES
   ========================================================================== */
.glass-card {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    box-shadow: var(--shadow-card);
    padding: 24px;
    transition: transform var(--transition-fast), border-color var(--transition-fast);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 18px;
    border-radius: 8px;
    font-weight: 600;
    font-family: var(--font-body);
    font-size: 13px;
    cursor: pointer;
    transition: var(--transition-fast);
    border: 1px solid transparent;
}

.btn-icon {
    width: 14px;
    height: 14px;
}

.btn-primary {
    background-color: var(--accent-purple);
    color: #ffffff;
    box-shadow: var(--shadow-ai);
}
.btn-primary:hover {
    background-color: #9333ea;
    transform: translateY(-1px);
}

.btn-secondary {
    background-color: var(--bg-secondary-btn);
    border-color: var(--border-color);
    color: var(--color-text-main);
}
.btn-secondary:hover {
    background-color: var(--bg-secondary-btn-hover);
}

.btn-danger {
    background-color: var(--accent-rose);
    color: #ffffff;
    box-shadow: 0 4px 14px rgba(239, 68, 68, 0.25);
}
.btn-danger:hover {
    background-color: #dc2626;
}

.btn-ai {
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-cyan));
    color: #ffffff;
    box-shadow: var(--shadow-ai);
}
.btn-ai:hover {
    filter: brightness(1.1);
    transform: translateY(-1px);
}

.btn-tiny {
    padding: 6px 12px;
    font-size: 11px;
    border-radius: 6px;
}

.btn-full {
    width: 100%;
}

.text-ai-glow {
    background: linear-gradient(90deg, #c084fc, #22d3ee);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: 600;
}

/* Badges */
.badge {
    display: inline-flex;
    padding: 2px 8px;
    border-radius: 9999px;
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-inactive {
    background-color: var(--bg-secondary-btn);
    color: var(--color-text-muted);
    border: 1px solid var(--border-color);
}
.badge-active {
    background-color: var(--accent-emerald-glow);
    color: var(--color-text-emerald-active);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

/* Form Controls */
.form-group {
    margin-bottom: 16px;
}
.form-group:last-child {
    margin-bottom: 0;
}
.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 16px;
    margin-bottom: 16px;
}
.control-label {
    display: block;
    margin-bottom: 6px;
    font-size: 12px;
    font-weight: 500;
    color: var(--color-text-muted);
}
.form-control {
    width: 100%;
    background-color: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 10px 14px;
    color: var(--color-text-main);
    font-family: var(--font-body);
    font-size: 13px;
    transition: var(--transition-fast);
}
.form-control:focus {
    outline: none;
    border-color: var(--accent-purple);
    box-shadow: 0 0 0 2px rgba(168, 85, 247, 0.2);
}
.input-helper {
    display: block;
    font-size: 11px;
    color: var(--color-text-muted);
    margin-top: 4px;
}
.select-custom {
    cursor: pointer;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%239ca3af'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 10px center;
    background-size: 16px;
    padding-right: 30px;
    -webkit-appearance: none;
    appearance: none;
}

/* ==========================================================================
   1. VIEW PLANNER (LỊCH CÔNG VIỆC)
   ========================================================================== */
.planner-layout {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 24px;
}

.planner-date-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 20px;
}

.planner-date-display {
    text-align: center;
}

.planner-date-display h2 {
    font-family: var(--font-heading);
    font-size: 18px;
    font-weight: 700;
}

.planner-tasks-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

/* Task Checkbox List Items */
.planner-task-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background-color: var(--bg-task-item);
    border: 1px solid var(--border-color);
    padding: 14px 18px;
    border-radius: 8px;
    transition: var(--transition-fast);
}
.planner-task-item:hover {
    border-color: var(--border-color-hover);
}

.planner-task-item-left {
    display: flex;
    align-items: center;
    gap: 14px;
    flex: 1;
}

.custom-checkbox-wrapper {
    position: relative;
    width: 20px;
    height: 20px;
    cursor: pointer;
}
.custom-checkbox-wrapper input {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}
.custom-checkbox-mark {
    position: absolute;
    top: 0;
    left: 0;
    height: 20px;
    width: 20px;
    border: 2px solid var(--border-color);
    border-radius: 6px;
    transition: var(--transition-fast);
}
.custom-checkbox-wrapper:hover input ~ .custom-checkbox-mark {
    border-color: var(--accent-purple);
}
.custom-checkbox-wrapper input:checked ~ .custom-checkbox-mark {
    background-color: var(--accent-purple);
    border-color: var(--accent-purple);
}
.custom-checkbox-mark:after {
    content: "";
    position: absolute;
    display: none;
    left: 6px;
    top: 2px;
    width: 5px;
    height: 10px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}
.custom-checkbox-wrapper input:checked ~ .custom-checkbox-mark:after {
    display: block;
}

.planner-task-title {
    font-weight: 500;
    font-size: 13px;
    color: var(--color-text-main);
    transition: var(--transition-fast);
}
.planner-task-item.done .planner-task-title {
    text-decoration: line-through;
    color: var(--color-text-muted);
}

.planner-task-item-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

.btn-delete-task {
    background: none;
    border: none;
    color: var(--color-text-muted);
    cursor: pointer;
    font-size: 18px;
    transition: var(--transition-fast);
    padding: 4px;
}
.btn-delete-task:hover {
    color: var(--accent-rose);
}

/* Sidebar Task Tabs */
.task-tabs {
    display: flex;
    background-color: var(--bg-status);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 3px;
    margin-bottom: 16px;
}
.task-tab-btn {
    flex: 1;
    background: none;
    border: none;
    color: var(--color-text-muted);
    font-size: 11px;
    font-weight: 600;
    padding: 8px 0;
    border-radius: 6px;
    cursor: pointer;
    transition: var(--transition-fast);
}
.task-tab-btn.active {
    background-color: var(--bg-card);
    color: var(--color-text-main);
    box-shadow: 0 1px 3px rgba(0,0,0,0.06);
}
body.dark-theme .task-tab-btn.active {
    background-color: rgba(255, 255, 255, 0.05);
    box-shadow: none;
}

.task-form-panel {
    display: none;
}
.task-form-panel.active {
    display: block;
}

.website-stats-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.website-stat-row {
    display: flex;
    justify-content: space-between;
    font-size: 12px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border-color-light);
}
.website-stat-row:last-child {
    border-bottom: none;
}

.website-stat-name {
    font-weight: 500;
}
.website-stat-count {
    color: var(--accent-cyan);
    font-weight: 700;
}

.mb-6 { margin-bottom: 24px; }
.mb-4 { margin-bottom: 16px; }
.mb-2 { margin-bottom: 8px; }
.mt-6 { margin-top: 24px; }
.mt-4 { margin-top: 16px; }
.mt-2 { margin-top: 8px; }

/* ==========================================================================
   2. VIEW IDEAS BANK (KHO Ý TƯỞNG)
   ========================================================================== */
.saturday-banner {
    position: relative;
    padding: 24px;
    background: linear-gradient(135deg, rgba(168, 85, 247, 0.15) 0%, rgba(6, 182, 212, 0.15) 100%);
    border-color: rgba(168, 85, 247, 0.25);
    overflow: hidden;
}
.saturday-banner-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 24px;
}
.saturday-title {
    font-family: var(--font-heading);
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 4px;
}
.saturday-desc {
    font-size: 12px;
    color: var(--color-text-muted);
    max-width: 700px;
    line-height: 1.4;
}

.toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 24px;
}
.search-box {
    position: relative;
    width: 320px;
}
.search-icon {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    width: 16px;
    height: 16px;
    color: var(--color-text-muted);
}
.search-box .form-control {
    padding-left: 38px;
}
.filter-controls {
    display: flex;
}

.ideas-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 20px;
}

/* Custom Styled Idea Cards */
.idea-card {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    height: 250px;
}

.idea-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.idea-card-title {
    font-family: var(--font-heading);
    font-size: 15px;
    font-weight: 600;
    color: var(--color-text-main);
    line-height: 1.35;
    margin-bottom: 6px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.idea-card-body {
    flex: 1;
}

.idea-source-tag {
    display: inline-block;
    font-size: 10px;
    padding: 2px 6px;
    background-color: var(--bg-hover);
    border-radius: 4px;
    color: var(--color-text-muted);
    border: 1px solid var(--border-color);
    margin-bottom: 8px;
}

.idea-outline-preview {
    font-size: 11px;
    color: var(--color-text-muted);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    line-height: 1.4;
}

.idea-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid var(--border-color-light);
    padding-top: 10px;
    margin-top: 10px;
}

/* ==========================================================================
   3. WEBSITE DIRECTIVES (ĐỊNH HƯỚNG WEBSITE)
   ========================================================================== */
.directives-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
    gap: 20px;
}

.directive-card {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    gap: 16px;
}

.directive-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color-light);
    padding-bottom: 10px;
}

.directive-card-title {
    font-family: var(--font-heading);
    font-size: 16px;
    font-weight: 700;
}

/* ==========================================================================
   4. DOMAIN BADGES DEFINITIONS (10 DOMAINS)
   ========================================================================== */
.site-badge {
    display: inline-block;
    padding: 3px 8px;
    border-radius: 6px;
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 0.2px;
}

/* Custom Domain Color Themes (Light Mode Default) */
.site-chothuexedanang { background-color: rgba(59, 130, 246, 0.1); color: #1d4ed8; border: 1px solid rgba(59, 130, 246, 0.2); }
.site-chothuexevip { background-color: rgba(234, 179, 8, 0.1); color: #a16207; border: 1px solid rgba(234, 179, 8, 0.2); }
.site-vitraco { background-color: rgba(168, 85, 247, 0.1); color: #7c3aed; border: 1px solid rgba(168, 85, 247, 0.2); }
.site-vitracotour { background-color: rgba(20, 184, 166, 0.1); color: #0f766e; border: 1px solid rgba(20, 184, 166, 0.2); }
.site-vitracoevent { background-color: rgba(236, 72, 153, 0.1); color: #be185d; border: 1px solid rgba(236, 72, 153, 0.2); }
.site-hanhtrinhdisanmientrung { background-color: rgba(16, 185, 129, 0.1); color: #047857; border: 1px solid rgba(16, 185, 129, 0.2); }
.site-cuuho119 { background-color: rgba(239, 68, 68, 0.1); color: #b91c1c; border: 1px solid rgba(239, 68, 68, 0.2); }
.site-otobaokhoa { background-color: rgba(249, 115, 22, 0.1); color: #c2410c; border: 1px solid rgba(249, 115, 22, 0.2); }
.site-vibiti { background-color: rgba(6, 182, 212, 0.1); color: #0891b2; border: 1px solid rgba(6, 182, 212, 0.2); }
.site-dangkiemdanang { background-color: rgba(99, 102, 241, 0.1); color: #4338ca; border: 1px solid rgba(99, 102, 241, 0.2); }

/* Custom Domain Color Themes (Dark Theme overrides) */
body.dark-theme .site-chothuexedanang { background-color: rgba(59, 130, 246, 0.15); color: #60a5fa; border: 1px solid rgba(59, 130, 246, 0.3); }
body.dark-theme .site-chothuexevip { background-color: rgba(234, 179, 8, 0.15); color: #facc15; border: 1px solid rgba(234, 179, 8, 0.3); }
body.dark-theme .site-vitraco { background-color: rgba(168, 85, 247, 0.15); color: #c084fc; border: 1px solid rgba(168, 85, 247, 0.3); }
body.dark-theme .site-vitracotour { background-color: rgba(20, 184, 166, 0.15); color: #2dd4bf; border: 1px solid rgba(20, 184, 166, 0.3); }
body.dark-theme .site-vitracoevent { background-color: rgba(236, 72, 153, 0.15); color: #f472b6; border: 1px solid rgba(236, 72, 153, 0.3); }
body.dark-theme .site-hanhtrinhdisanmientrung { background-color: rgba(16, 185, 129, 0.15); color: #34d399; border: 1px solid rgba(16, 185, 129, 0.3); }
body.dark-theme .site-cuuho119 { background-color: rgba(239, 68, 68, 0.15); color: #f87171; border: 1px solid rgba(239, 68, 68, 0.3); }
body.dark-theme .site-otobaokhoa { background-color: rgba(249, 115, 22, 0.15); color: #fb923c; border: 1px solid rgba(249, 115, 22, 0.3); }
body.dark-theme .site-vibiti { background-color: rgba(6, 182, 212, 0.15); color: #22d3ee; border: 1px solid rgba(6, 182, 212, 0.3); }
body.dark-theme .site-dangkiemdanang { background-color: rgba(99, 102, 241, 0.15); color: #818cf8; border: 1px solid rgba(99, 102, 241, 0.3); }

/* Idea Status Badges (Light mode Default) */
.badge-idea-draft { background-color: rgba(100, 116, 139, 0.1); color: #475569; }
.badge-idea-scheduled { background-color: rgba(59, 130, 246, 0.1); color: #1d4ed8; }
.badge-idea-completed { background-color: rgba(16, 185, 129, 0.1); color: #047857; }

/* Idea Status Badges (Dark mode overrides) */
body.dark-theme .badge-idea-draft { background-color: rgba(156, 163, 175, 0.1); color: #9ca3af; }
body.dark-theme .badge-idea-scheduled { background-color: rgba(59, 130, 246, 0.15); color: #60a5fa; }
body.dark-theme .badge-idea-completed { background-color: rgba(16, 185, 129, 0.15); color: #34d399; }

/* ==========================================================================
   5. VIEW SETTINGS (CÀI ĐẶT & FIREBASE)
   ========================================================================== */
.settings-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
    gap: 24px;
}

.settings-card {
    padding: 24px;
}

.settings-data-actions {
    display: flex;
    gap: 16px;
    margin-top: 10px;
}

/* ==========================================================================
   AI OVERLAY SCREEN
   ========================================================================== */
.ai-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: var(--bg-overlay);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 9999;
    display: none;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.ai-overlay.active {
    display: flex;
    opacity: 1;
}

.ai-loading-container {
    text-align: center;
    position: relative;
    padding: 40px;
    max-width: 420px;
}

.ai-brain-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 150px;
    height: 150px;
    background: radial-gradient(circle, rgba(168, 85, 247, 0.3) 0%, transparent 70%);
    filter: blur(10px);
    animation: brainPulse 2s infinite ease-in-out;
}

.ai-pulse-spinner {
    width: 64px;
    height: 64px;
    border: 4px solid rgba(168, 85, 247, 0.1);
    border-top-color: var(--accent-purple);
    border-right-color: var(--accent-cyan);
    border-radius: 50%;
    margin: 0 auto 24px auto;
    animation: spin 1.2s infinite linear;
}

.ai-overlay-title {
    font-family: var(--font-heading);
    font-size: 18px;
    font-weight: 700;
    background: linear-gradient(90deg, #c084fc, #22d3ee);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 8px;
}

.ai-overlay-desc {
    font-size: 13px;
    color: var(--color-text-muted);
}

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

@keyframes brainPulse {
    0%, 100% { opacity: 0.4; transform: translate(-50%, -50%) scale(1); }
    50% { opacity: 0.8; transform: translate(-50%, -50%) scale(1.12); }
}

/* ==========================================================================
   MODAL WINDOWS DIALOGS
   ========================================================================== */
.modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    z-index: 1000;
    display: none;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.modal-backdrop.active {
    display: flex;
    opacity: 1;
}

.modal-card {
    width: 100%;
    max-width: 550px;
    max-height: 90vh;
    overflow-y: auto;
    animation: modalSlideDown 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 16px;
    margin-bottom: 20px;
}

.modal-title {
    font-family: var(--font-heading);
    font-size: 16px;
    font-weight: 700;
}

.close-btn {
    background: none;
    border: none;
    color: var(--color-text-muted);
    font-size: 24px;
    cursor: pointer;
    line-height: 1;
    transition: var(--transition-fast);
}
.close-btn:hover {
    color: var(--color-text-main);
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    border-top: 1px solid var(--border-color);
    padding-top: 16px;
    margin-top: 20px;
}

.idea-detail-title {
    font-family: var(--font-heading);
    font-size: 20px;
    font-weight: 700;
    line-height: 1.35;
}

.idea-detail-text {
    font-size: 13px;
    color: var(--color-text-main);
    background-color: rgba(0,0,0,0.15);
    border: 1px solid var(--border-color);
    padding: 10px 14px;
    border-radius: 8px;
    margin-top: 4px;
}

ui-editor-box textarea {
    font-family: var(--font-body);
    font-size: 13px;
    line-height: 1.5;
}

.ml-4 { margin-left: 16px; }

@keyframes modalSlideDown {
    from { transform: translateY(-30px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

/* Responsive adjustment */
@media(max-width: 900px) {
    .app-layout {
        grid-template-columns: 1fr;
    }
    .sidebar {
        display: none;
    }
    .weekly-planner-board {
        flex-direction: column !important;
        min-width: 100% !important;
    }
    .settings-grid {
        grid-template-columns: 1fr;
    }
}

/* ==========================================================================
   WEEKLY PLANNER BOARD STYLES
   ========================================================================== */
.weekly-planner-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 24px;
}

.weekly-planner-title-display h2 {
    font-family: var(--font-heading);
    font-size: 20px;
    font-weight: 700;
    color: var(--color-text-main);
}

.weekly-planner-board-scroll {
    overflow-x: auto;
    padding-bottom: 16px;
    margin-bottom: 8px;
}

.weekly-planner-board {
    display: flex;
    gap: 16px;
    min-width: 1400px;
    align-items: flex-start;
}

.weekly-day-column {
    flex: 1;
    min-width: 190px;
    background-color: var(--bg-day-column);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 16px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-height: 480px;
    max-height: 580px;
    transition: var(--transition-fast);
}

.weekly-day-column:hover {
    border-color: var(--border-color-hover);
    box-shadow: var(--shadow-hover);
}

.weekly-day-column.today {
    border-color: var(--accent-purple);
    background-color: var(--bg-today);
    box-shadow: var(--shadow-today);
}

.weekly-day-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    border-bottom: 1px solid var(--border-color-light);
    padding-bottom: 10px;
    margin-bottom: 12px;
}

.weekly-day-title-wrapper {
    display: flex;
    flex-direction: column;
}

.weekly-day-title {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 14px;
    color: var(--color-text-main);
}
.weekly-day-column.today .weekly-day-title {
    color: var(--accent-purple);
}

.weekly-day-date {
    font-size: 11px;
    color: var(--color-text-muted);
    margin-top: 2px;
}

.weekly-day-tasks-list {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 10px;
    overflow-y: auto;
    padding-right: 2px;
    margin-bottom: 12px;
}

/* Weekly Planner Task Card */
.weekly-task-item {
    background-color: var(--bg-task-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 10px 12px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    transition: var(--transition-fast);
    position: relative;
}

.weekly-task-item:hover {
    transform: translateY(-1px);
    border-color: var(--border-color-hover);
    box-shadow: var(--shadow-task-hover);
}

.weekly-task-item.done {
    opacity: 0.5;
}

.weekly-task-item-top {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    justify-content: space-between;
}

.weekly-task-checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    cursor: pointer;
    flex: 1;
}

.weekly-task-title {
    font-size: 12px;
    font-weight: 500;
    color: var(--color-text-main);
    line-height: 1.35;
    word-break: break-word;
}
.weekly-task-item.done .weekly-task-title {
    text-decoration: line-through;
    color: var(--color-text-muted);
}

.weekly-task-item-top .btn-delete-task {
    font-size: 14px;
    padding: 0;
    line-height: 1;
    margin-top: -2px;
}

.weekly-task-item-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid var(--border-color-light);
    padding-top: 6px;
}

.weekly-add-task-btn {
    width: 100%;
    background-color: var(--bg-hover);
    border: 1px dashed var(--border-color);
    color: var(--color-text-muted);
    font-size: 11px;
    font-weight: 600;
    padding: 8px 0;
    border-radius: 6px;
    cursor: pointer;
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}
.weekly-add-task-btn:hover {
    background-color: var(--bg-hover);
    border-color: var(--accent-purple);
    color: var(--color-text-main);
}

/* Coverage Stats Capsule Summary */
.weekly-planner-coverage-row {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.weekly-planner-coverage-item {
    flex: 1;
    min-width: 100px;
    background-color: var(--bg-task-item);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 8px 12px;
    text-align: center;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.weekly-planner-coverage-item .domain-lbl {
    font-size: 10px;
    color: var(--color-text-muted);
    font-weight: 500;
}

.weekly-planner-coverage-item .pct-val {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 14px;
    color: var(--accent-cyan);
}