/* Style Guide & Variables */
:root {
    --transition-speed: 0.3s;
    --transition-curve: cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Dark Theme (Default) */
    --bg-app: #080b11;
    --bg-sidebar: #0f131f;
    --bg-card: rgba(17, 24, 39, 0.7);
    --border-color: rgba(255, 255, 255, 0.08);
    --border-color-glow: rgba(99, 102, 241, 0.2);
    
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --text-inverse: #0f172a;
    
    --primary: #6366f1;
    --primary-hover: #4f46e5;
    --primary-glow: rgba(99, 102, 241, 0.4);
    
    --secondary: #1e293b;
    --secondary-hover: #334155;
    
    --priority-high: #ef4444;
    --priority-high-bg: rgba(239, 68, 68, 0.15);
    --priority-medium: #f59e0b;
    --priority-medium-bg: rgba(245, 158, 11, 0.15);
    --priority-low: #10b981;
    --priority-low-bg: rgba(16, 185, 129, 0.15);
    
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.2);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.3);
    
    --calendar-today-outline: #6366f1;
    --calendar-empty-cell: #1a1f2e;
}

[data-theme="light"] {
    /* Light Theme Settings */
    --bg-app: #f4f6fa;
    --bg-sidebar: #ffffff;
    --bg-card: rgba(255, 255, 255, 0.8);
    --border-color: rgba(15, 23, 42, 0.08);
    --border-color-glow: rgba(79, 70, 229, 0.15);
    
    --text-main: #0f172a;
    --text-muted: #64748b;
    --text-inverse: #ffffff;
    
    --primary: #4f46e5;
    --primary-hover: #4338ca;
    --primary-glow: rgba(79, 70, 229, 0.25);
    
    --secondary: #e2e8f0;
    --secondary-hover: #cbd5e1;
    
    --priority-high-bg: rgba(239, 68, 68, 0.1);
    --priority-medium-bg: rgba(245, 158, 11, 0.1);
    --priority-low-bg: rgba(16, 185, 129, 0.1);
    
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
    
    --calendar-today-outline: #4f46e5;
    --calendar-empty-cell: #f1f5f9;
}

/* Reset and Global Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Kanit', 'Outfit', system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background-color: var(--bg-app);
    color: var(--text-main);
    min-height: 100vh;
    overflow-x: hidden;
    transition: background-color var(--transition-speed) var(--transition-curve), 
                color var(--transition-speed) var(--transition-curve);
}

/* Scrollbar customization */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
::-webkit-scrollbar-track {
    background: transparent;
}
::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 10px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* App Layout Grid */
.app-container {
    display: grid;
    grid-template-columns: 280px 1fr;
    min-height: 100vh;
}

/* Glassmorphism Panel styles */
.glass-panel {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: 18px;
    box-shadow: var(--shadow-md);
    transition: border-color var(--transition-speed) var(--transition-curve),
                box-shadow var(--transition-speed) var(--transition-curve),
                background-color var(--transition-speed) var(--transition-curve);
}

.glass-panel:hover {
    border-color: var(--border-color-glow);
    box-shadow: var(--shadow-lg);
}

/* Sidebar Design */
.sidebar {
    background-color: var(--bg-sidebar);
    border-right: 1px solid var(--border-color);
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 24px;
    z-index: 10;
    transition: background-color var(--transition-speed) var(--transition-curve);
}

.sidebar-brand {
    display: flex;
    align-items: center;
    gap: 12px;
}

.brand-icon {
    font-size: 2rem;
    color: var(--primary);
    filter: drop-shadow(0 0 8px var(--primary-glow));
}

.brand-text h1 {
    font-size: 1.4rem;
    font-weight: 600;
    line-height: 1.2;
    letter-spacing: 0.5px;
}

.brand-text span {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 300;
}

/* Search bar styling */
.sidebar-search .search-box {
    position: relative;
    display: flex;
    align-items: center;
}

.search-box i {
    position: absolute;
    left: 14px;
    color: var(--text-muted);
    font-size: 0.95rem;
}

.search-box input {
    width: 100%;
    background-color: var(--bg-app);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 12px 12px 12px 42px;
    color: var(--text-main);
    font-family: inherit;
    font-size: 0.9rem;
    outline: none;
    transition: all var(--transition-speed) var(--transition-curve);
}

.search-box input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-glow);
}

/* Sidebar navigation menu */
.sidebar-menu {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.menu-section {
    font-size: 0.75rem;
    text-transform: uppercase;
    color: var(--text-muted);
    font-weight: 600;
    letter-spacing: 1px;
    margin-bottom: 6px;
    padding-left: 8px;
}

.menu-item {
    background: none;
    border: none;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border-radius: 12px;
    color: var(--text-muted);
    font-family: inherit;
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    text-align: left;
    transition: all 0.2s var(--transition-curve);
}

.menu-item:hover {
    background-color: var(--border-color);
    color: var(--text-main);
}

.menu-item.active {
    background-color: var(--primary);
    color: var(--text-inverse);
    box-shadow: 0 4px 12px var(--primary-glow);
}

/* Sidebar stats card */
.stats-panel {
    background-color: var(--bg-app);
    border: 1px solid var(--border-color);
    border-radius: 14px;
    padding: 16px;
    margin-top: auto;
}

.stats-header {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 12px;
}

.stats-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.stat-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    background-color: var(--bg-sidebar);
    padding: 10px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.stat-num {
    font-size: 1.4rem;
    font-weight: 600;
}

.stat-label {
    font-size: 0.7rem;
    color: var(--text-muted);
    margin-top: 2px;
}

/* Theme Toggle Button */
.theme-toggle {
    width: 100%;
    background: var(--secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    color: var(--text-main);
    cursor: pointer;
    font-family: inherit;
    font-weight: 500;
    transition: all 0.2s ease;
}

.theme-toggle:hover {
    background: var(--secondary-hover);
}

.theme-toggle .moon-icon {
    display: block;
}
.theme-toggle .sun-icon {
    display: none;
}

[data-theme="light"] .theme-toggle .moon-icon {
    display: none;
}
[data-theme="light"] .theme-toggle .sun-icon {
    display: block;
}

/* Main Content Area */
.main-content {
    padding: 32px;
    display: flex;
    flex-direction: column;
    gap: 28px;
    overflow-y: auto;
    height: 100vh;
}

/* App Header Layout */
.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
}

.welcome-text h2 {
    font-size: 1.8rem;
    font-weight: 600;
}

.welcome-text p {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-top: 4px;
}

/* General Buttons styling */
.btn {
    border: none;
    border-radius: 12px;
    padding: 10px 20px;
    font-family: inherit;
    font-weight: 500;
    font-size: 0.95rem;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: all 0.25s var(--transition-curve);
}

.btn-primary {
    background-color: var(--primary);
    color: var(--text-inverse);
    box-shadow: 0 4px 12px var(--primary-glow);
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 18px var(--primary-glow);
}

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

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

.btn-sm {
    padding: 6px 12px;
    font-size: 0.85rem;
    border-radius: 8px;
}

.btn-text {
    background: none;
    padding: 4px 8px;
    color: var(--primary);
}
.btn-text:hover {
    background-color: var(--border-color);
    text-decoration: underline;
}

/* Dashboard Content Grid */
.dashboard-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 24px;
    align-items: start;
    flex-grow: 1;
}

/* Interactive Calendar Design */
.calendar-card {
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.calendar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.calendar-title {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.3rem;
    font-weight: 600;
}

.calendar-title i {
    color: var(--primary);
}

.calendar-nav {
    display: flex;
    align-items: center;
    gap: 8px;
}

.calendar-nav button {
    background: var(--secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    width: 38px;
    height: 38px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-main);
    cursor: pointer;
    transition: all 0.2s;
}

.calendar-nav button:hover {
    background: var(--secondary-hover);
    color: var(--primary);
}

.calendar-nav button#btn-today {
    width: auto;
    padding: 0 16px;
    font-weight: 500;
}

/* Calendar Days Grid */
.weekdays-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    text-align: center;
    font-weight: 500;
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-bottom: 12px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-color);
}

.days-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 10px;
}

/* Calendar Day Cells */
.calendar-day-cell {
    position: relative;
    aspect-ratio: 1.1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    cursor: pointer;
    font-weight: 500;
    font-size: 0.95rem;
    transition: all 0.25s var(--transition-curve);
    background-color: transparent;
    user-select: none;
    border: 1px solid transparent;
}

.calendar-day-cell:hover:not(.empty-cell) {
    background-color: var(--border-color);
    transform: translateY(-2px);
}

/* Inactive dates belonging to next/prev month */
.calendar-day-cell.inactive-month {
    color: var(--text-muted);
    opacity: 0.4;
}

/* Empty cells before start of month */
.calendar-day-cell.empty-cell {
    cursor: default;
    background-color: var(--calendar-empty-cell);
    opacity: 0.15;
}

/* Highlight today's date */
.calendar-day-cell.today-cell {
    border: 2px solid var(--calendar-today-outline);
    color: var(--primary);
    font-weight: 600;
}

/* Highlight selected date cell */
.calendar-day-cell.selected-cell {
    background-color: var(--primary) !important;
    color: var(--text-inverse) !important;
    box-shadow: 0 4px 15px var(--primary-glow);
    font-weight: 600;
    transform: scale(1.05);
}

.calendar-day-cell.selected-cell .task-dot-indicator {
    background-color: var(--text-inverse); /* Contrast indicator for selected date */
}

/* Date cells with tasks indicators */
.calendar-day-cell.has-tasks-cell::after {
    content: '';
    position: absolute;
    bottom: 6px;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background-color: var(--primary);
}

/* More granular color-coded task indicator dots */
.task-dots-wrapper {
    position: absolute;
    bottom: 6px;
    display: flex;
    gap: 3px;
    justify-content: center;
    width: 100%;
}

.task-dot-indicator {
    width: 5px;
    height: 5px;
    border-radius: 50%;
}
.task-dot-indicator.low { background-color: var(--priority-low); }
.task-dot-indicator.medium { background-color: var(--priority-medium); }
.task-dot-indicator.high { background-color: var(--priority-high); }

/* Daily Tasks Panel (Right Side) */
.tasks-panel {
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 20px;
    max-height: 600px;
}

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

.selected-date-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.selected-date-info i {
    font-size: 1.5rem;
    color: var(--primary);
}

.selected-date-info h3 {
    font-size: 1.1rem;
    font-weight: 600;
}

.selected-date-info p {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.task-count-badge {
    background-color: var(--secondary);
    border: 1px solid var(--border-color);
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}

/* Task List Container */
.tasks-container {
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 14px;
    flex-grow: 1;
    padding-right: 4px;
}

/* Task Empty State Styling */
.tasks-empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 40px 20px;
    color: var(--text-muted);
    gap: 12px;
}

.tasks-empty-state i {
    font-size: 3rem;
    opacity: 0.3;
    color: var(--primary);
}

.tasks-empty-state p {
    font-size: 0.95rem;
}

/* Task Card Component Design */
.task-item-card {
    background: var(--bg-sidebar);
    border: 1px solid var(--border-color);
    border-radius: 14px;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    transition: all 0.25s var(--transition-curve);
    animation: slideIn 0.3s var(--transition-curve) forwards;
}

.task-item-card:hover {
    transform: translateY(-2px);
    border-color: var(--border-color-glow);
}

.task-item-header {
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.task-checkbox-wrapper {
    margin-top: 3px;
}

.task-checkbox {
    width: 20px;
    height: 20px;
    border-radius: 6px;
    border: 2px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s;
    color: transparent;
}

.task-checkbox i {
    font-size: 0.75rem;
}

.task-checkbox.checked {
    background-color: var(--primary);
    border-color: var(--primary);
    color: var(--text-inverse);
}

.task-item-details {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.task-item-details h4 {
    font-size: 1rem;
    font-weight: 500;
    line-height: 1.4;
    transition: all 0.2s;
}

.task-item-details p {
    font-size: 0.85rem;
    color: var(--text-muted);
    white-space: pre-line;
}

.task-completed .task-item-details h4 {
    text-decoration: line-through;
    color: var(--text-muted);
    opacity: 0.6;
}

.task-completed .task-item-details p {
    opacity: 0.5;
}

/* Task Priority Indicators */
.task-badge-row {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.priority-badge {
    font-size: 0.7rem;
    font-weight: 600;
    padding: 3px 8px;
    border-radius: 6px;
    text-transform: uppercase;
}

.priority-badge.high {
    background-color: var(--priority-high-bg);
    color: var(--priority-high);
}

.priority-badge.medium {
    background-color: var(--priority-medium-bg);
    color: var(--priority-medium);
}

.priority-badge.low {
    background-color: var(--priority-low-bg);
    color: var(--priority-low);
}

.time-badge {
    font-size: 0.75rem;
    color: var(--text-muted);
    background-color: var(--bg-app);
    padding: 3px 8px;
    border-radius: 6px;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    border: 1px solid var(--border-color);
}

/* Task Item Actions (Edit / Delete) */
.task-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.task-action-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 0.9rem;
    width: 30px;
    height: 30px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

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

.task-action-btn.delete-btn:hover {
    background-color: rgba(239, 68, 68, 0.15);
    color: var(--priority-high);
}

/* Task attachments inside the card */
.task-card-attachments {
    border-top: 1px solid var(--border-color);
    padding-top: 12px;
    margin-top: 4px;
}

.attachments-section-title {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 8px;
    text-transform: uppercase;
}

.card-attachments-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

/* Attachment preview items - Images */
.attachment-card-img {
    position: relative;
    width: 54px;
    height: 54px;
    border-radius: 8px;
    overflow: hidden;
    cursor: zoom-in;
    border: 1px solid var(--border-color);
    transition: transform 0.2s;
}

.attachment-card-img:hover {
    transform: scale(1.05);
}

.attachment-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Attachment items - Documents */
.attachment-card-doc {
    background-color: var(--bg-app);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 6px 10px;
    font-size: 0.75rem;
    display: flex;
    align-items: center;
    gap: 8px;
    max-width: 160px;
    text-decoration: none;
    color: var(--text-main);
    transition: all 0.2s;
}

.attachment-card-doc:hover {
    background-color: var(--secondary);
    border-color: var(--primary);
}

.attachment-card-doc i {
    color: var(--primary);
    font-size: 0.95rem;
}

.attachment-card-doc span {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Modal Popup Window */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-speed) var(--transition-curve);
}

.modal.active {
    opacity: 1;
    pointer-events: auto;
}

.modal-overlay {
    position: absolute;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
}

.modal-content {
    position: relative;
    width: 90%;
    max-width: 580px;
    max-height: 90vh;
    overflow-y: auto;
    padding: 28px;
    z-index: 101;
    transform: translateY(20px) scale(0.95);
    transition: transform var(--transition-speed) var(--transition-curve);
}

.modal.active .modal-content {
    transform: translateY(0) scale(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-header h3 {
    font-size: 1.3rem;
    font-weight: 600;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.2rem;
    color: var(--text-muted);
    cursor: pointer;
    transition: color 0.2s;
}

.modal-close:hover {
    color: var(--priority-high);
}

/* Form Styles inside Modal */
.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 20px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

label {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-muted);
}

label .required {
    color: var(--priority-high);
}

input[type="text"],
textarea,
select,
input[type="time"] {
    background-color: var(--bg-app);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    padding: 12px 14px;
    border-radius: 10px;
    font-family: inherit;
    font-size: 0.95rem;
    outline: none;
    transition: all 0.2s;
}

input[type="text"]:focus,
textarea:focus,
select:focus,
input[type="time"]:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-glow);
}

textarea {
    resize: vertical;
}

/* File Upload Zone in form */
.file-upload-zone {
    border: 2px dashed var(--border-color);
    border-radius: 12px;
    padding: 24px;
    text-align: center;
    cursor: pointer;
    background-color: rgba(255, 255, 255, 0.01);
    transition: all 0.2s;
}

.file-upload-zone:hover,
.file-upload-zone.dragover {
    border-color: var(--primary);
    background-color: var(--primary-glow);
}

.upload-icon {
    font-size: 2.2rem;
    color: var(--text-muted);
    margin-bottom: 8px;
    transition: color 0.2s;
}

.file-upload-zone:hover .upload-icon {
    color: var(--primary);
}

.file-upload-zone p {
    font-size: 0.9rem;
    margin-bottom: 4px;
}

.file-upload-zone p span {
    color: var(--primary);
    font-weight: 600;
}

.file-upload-zone small {
    color: var(--text-muted);
    font-size: 0.75rem;
}

/* Attachment list inside upload form */
.attachment-preview-container {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 14px;
}

.attachment-preview-item {
    position: relative;
    background-color: var(--bg-app);
    border: 1px solid var(--border-color);
    padding: 8px 12px;
    border-radius: 8px;
    font-size: 0.8rem;
    display: flex;
    align-items: center;
    gap: 8px;
    max-width: 200px;
}

.attachment-preview-item.image-preview {
    width: 60px;
    height: 60px;
    padding: 0;
    overflow: hidden;
}

.attachment-preview-item.image-preview img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.attachment-preview-item .remove-attachment {
    position: absolute;
    top: -6px;
    right: -6px;
    background-color: var(--priority-high);
    color: white;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 0.65rem;
    border: 1px solid var(--bg-app);
    transition: transform 0.2s;
}

.attachment-preview-item .remove-attachment:hover {
    transform: scale(1.15);
}

.attachment-preview-item span {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    border-top: 1px solid var(--border-color);
    padding-top: 20px;
    margin-top: 10px;
}

/* Lightbox Image Popout */
.lightbox-content {
    position: relative;
    max-width: 85%;
    max-height: 80vh;
    z-index: 102;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.lightbox-content img {
    max-width: 100%;
    max-height: 75vh;
    object-fit: contain;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.8);
    animation: zoomIn 0.3s var(--transition-curve);
}

.lightbox-close {
    position: absolute;
    top: -42px;
    right: -42px;
    background: none;
    border: none;
    color: white;
    font-size: 2rem;
    cursor: pointer;
    transition: transform 0.2s;
}

.lightbox-close:hover {
    transform: scale(1.1);
}

.lightbox-caption {
    color: white;
    font-size: 0.95rem;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.8);
}

/* Search Area Results Panel */
.search-results-area {
    background-color: var(--bg-app);
    border: 1px solid var(--border-color);
    border-radius: 14px;
    padding: 16px;
    margin-bottom: 12px;
}

.search-results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.9rem;
    color: var(--text-muted);
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 8px;
    margin-bottom: 12px;
}

.search-results-header strong {
    color: var(--primary);
}

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

.search-result-item {
    background-color: var(--bg-sidebar);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 12px;
    cursor: pointer;
    transition: all 0.2s;
}

.search-result-item:hover {
    border-color: var(--primary);
    transform: translateX(4px);
}

.search-result-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 4px;
}

/* Toast Notifications */
.toast-container {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.toast {
    background: var(--bg-sidebar);
    border-left: 4px solid var(--primary);
    border-radius: 8px;
    box-shadow: var(--shadow-lg);
    padding: 16px 20px;
    color: var(--text-main);
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 280px;
    max-width: 400px;
    animation: toastIn 0.3s var(--transition-curve), toastOut 0.3s ease 2.7s forwards;
    border: 1px solid var(--border-color);
    border-left: 4px solid var(--primary);
}

.toast.success { border-left-color: var(--priority-low); }
.toast.error { border-left-color: var(--priority-high); }
.toast.info { border-left-color: var(--primary); }

.toast i {
    font-size: 1.1rem;
}
.toast.success i { color: var(--priority-low); }
.toast.error i { color: var(--priority-high); }
.toast.info i { color: var(--primary); }

/* Animation Keyframes */
@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(12px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes zoomIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes toastIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes toastOut {
    from {
        transform: translateX(0);
        opacity: 1;
    }
    to {
        transform: translateX(100%);
        opacity: 0;
    }
}

/* Helper Utilities */
.hidden {
    display: none !important;
}

/* Responsive Layout Styles */
@media (max-width: 1024px) {
    .app-container {
        grid-template-columns: 1fr;
    }
    
    .sidebar {
        border-right: none;
        border-bottom: 1px solid var(--border-color);
        padding: 20px;
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
        height: auto;
    }
    
    .sidebar-brand {
        flex-shrink: 0;
    }
    
    .sidebar-search, .stats-panel, .sidebar-menu, .storage-status-panel {
        display: none;
    }
    
    .main-content {
        padding: 20px;
        height: auto;
        overflow-y: visible;
    }
    
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 600px) {
    .sidebar {
        padding: 14px 20px;
    }
    
    .brand-text h1 {
        font-size: 1.1rem;
    }
    
    .brand-text span {
        display: none;
    }
    
    .app-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .form-row {
        grid-template-columns: 1fr;
        gap: 0px;
    }
    
    .lightbox-close {
        top: -40px;
        right: 0px;
    }
}

/* --- Storage Status Badge and Settings Tabs --- */
.storage-status-panel {
    background-color: var(--bg-app);
    border: 1px solid var(--border-color);
    border-radius: 14px;
    padding: 12px;
    margin-top: 10px;
    transition: all var(--transition-speed) var(--transition-curve);
}

.status-header {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 8px;
}

.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    border-radius: 10px;
    font-size: 0.8rem;
    font-weight: 500;
    width: 100%;
    border: 1px solid transparent;
}

.status-badge.local {
    background-color: rgba(99, 102, 241, 0.1);
    color: var(--primary);
    border-color: rgba(99, 102, 241, 0.25);
}

.status-badge.firebase {
    background-color: rgba(245, 158, 11, 0.1);
    color: var(--priority-medium);
    border-color: rgba(245, 158, 11, 0.25);
}

.status-badge.cloudflare {
    background-color: rgba(16, 185, 129, 0.1);
    color: var(--priority-low);
    border-color: rgba(16, 185, 129, 0.25);
}

.settings-tabs {
    display: flex;
    gap: 6px;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 20px;
    padding-bottom: 10px;
    overflow-x: auto;
}

.settings-tab-btn {
    background: none;
    border: none;
    padding: 8px 12px;
    color: var(--text-muted);
    font-family: inherit;
    font-size: 0.8rem;
    font-weight: 500;
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    white-space: nowrap;
    transition: all 0.2s var(--transition-curve);
}

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

.settings-tab-btn.active {
    background-color: var(--primary);
    color: var(--text-inverse);
    box-shadow: 0 2px 8px var(--primary-glow);
}

.settings-tab-content {
    display: none;
}

.settings-tab-content.active {
    display: block;
}

.sync-prompt-box {
    margin-top: 15px;
    padding: 12px;
    background: var(--priority-medium-bg);
    border: 1px solid var(--priority-medium);
    border-radius: 8px;
    font-size: 0.8rem;
}