/* ==========================================
   TEAMFLOW MAIN STYLESHEET
   Aesthetics: Premium, Modern Glassmorphism
   Theme: Auto/Manual Light & Dark Toggle
   ========================================== */

/* --- Custom Properties & Theme Variables --- */
:root {
    /* Fonts */
    --font-primary: 'Inter', 'Kanit', sans-serif;

    /* Transition Speeds */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s ease;

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-full: 9999px;
}

/* --- Dark Theme Variables --- */
html[data-theme="dark"] {
    --bg-app: radial-gradient(circle at top right, #111827, #030712);
    --bg-panel: rgba(17, 24, 39, 0.7);
    --bg-panel-hover: rgba(31, 41, 55, 0.8);
    --border-glass: rgba(255, 255, 255, 0.08);
    --border-glow: rgba(99, 102, 241, 0.2);
    --shadow-premium: 0 10px 30px rgba(0, 0, 0, 0.5);
    
    /* Text Colors */
    --text-primary: #f3f4f6;
    --text-secondary: #9ca3af;
    --text-muted: #6b7280;
    
    /* Brand Colors */
    --primary: #6366f1; /* Indigo */
    --primary-hover: #4f46e5;
    --primary-glow: rgba(99, 102, 241, 0.4);
    
    --secondary: #374151;
    --secondary-hover: #4b5563;
    
    /* Status Colors */
    --todo-color: #818cf8;
    --todo-bg: rgba(129, 140, 248, 0.15);
    --inprogress-color: #f59e0b;
    --inprogress-bg: rgba(245, 158, 11, 0.15);
    --review-color: #a855f7;
    --review-bg: rgba(168, 85, 247, 0.15);
    --done-color: #10b981;
    --done-bg: rgba(16, 185, 129, 0.15);
    --overdue-color: #ef4444;
    --overdue-bg: rgba(239, 68, 68, 0.15);
    
    /* Priorities */
    --priority-low: #10b981;
    --priority-medium: #f59e0b;
    --priority-high: #ef4444;
    
    /* Input Elements */
    --bg-input: rgba(31, 41, 55, 0.5);
    --border-input: rgba(255, 255, 255, 0.1);
    
    /* Scrollbars */
    --bg-scroll: #1f2937;
    --thumb-scroll: #4b5563;
}

/* --- Light Theme Variables --- */
html[data-theme="light"] {
    --bg-app: radial-gradient(circle at top right, #f8fafc, #f1f5f9);
    --bg-panel: rgba(255, 255, 255, 0.75);
    --bg-panel-hover: rgba(255, 255, 255, 0.9);
    --border-glass: rgba(0, 0, 0, 0.06);
    --border-glow: rgba(99, 102, 241, 0.1);
    --shadow-premium: 0 10px 30px rgba(15, 23, 42, 0.08);
    
    /* Text Colors */
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    
    /* Brand Colors */
    --primary: #4f46e5;
    --primary-hover: #4338ca;
    --primary-glow: rgba(79, 70, 229, 0.2);
    
    --secondary: #e2e8f0;
    --secondary-hover: #cbd5e1;
    
    /* Status Colors */
    --todo-color: #4f46e5;
    --todo-bg: rgba(79, 70, 229, 0.1);
    --inprogress-color: #d97706;
    --inprogress-bg: rgba(217, 119, 6, 0.1);
    --review-color: #7c3aed;
    --review-bg: rgba(124, 58, 237, 0.1);
    --done-color: #059669;
    --done-bg: rgba(5, 150, 105, 0.1);
    --overdue-color: #dc2626;
    --overdue-bg: rgba(220, 38, 38, 0.1);
    
    /* Priorities */
    --priority-low: #059669;
    --priority-medium: #d97706;
    --priority-high: #dc2626;
    
    /* Input Elements */
    --bg-input: rgba(255, 255, 255, 0.9);
    --border-input: rgba(0, 0, 0, 0.1);
    
    /* Scrollbars */
    --bg-scroll: #e2e8f0;
    --thumb-scroll: #94a3b8;
}

/* --- Base Resets & General Styles --- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: var(--font-primary);
}

body {
    background: var(--bg-app);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    transition: background var(--transition-slow), color var(--transition-normal);
}

/* Scrollbar Customization */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg-scroll);
}
::-webkit-scrollbar-thumb {
    background: var(--thumb-scroll);
    border-radius: var(--radius-full);
}
::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* --- Glassmorphic UI Foundation --- */
.glass-panel {
    background: var(--bg-panel);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-glass);
    box-shadow: var(--shadow-premium);
    border-radius: var(--radius-lg);
    transition: background var(--transition-normal), border var(--transition-normal), box-shadow var(--transition-normal);
}

.border-glow {
    position: relative;
}
.border-glow::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: var(--radius-lg);
    border: 1.5px solid transparent;
    transition: border var(--transition-normal);
    pointer-events: none;
}
.border-glow:hover::after {
    border-color: var(--border-glow);
}
.border-glow.danger:hover::after {
    border-color: rgba(239, 68, 68, 0.25);
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 18px;
    font-size: 0.95rem;
    font-weight: 500;
    border-radius: var(--radius-md);
    cursor: pointer;
    border: none;
    outline: none;
    transition: all var(--transition-fast);
}

.btn-primary {
    background: var(--primary);
    color: #ffffff;
    box-shadow: 0 4px 14px var(--primary-glow);
}
.btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 6px 20px var(--primary-glow);
}
.btn-primary:active {
    transform: translateY(1px);
}

.btn-secondary {
    background: var(--secondary);
    color: var(--text-primary);
    border: 1px solid var(--border-glass);
}
.btn-secondary:hover {
    background: var(--secondary-hover);
    transform: translateY(-1px);
}
.btn-secondary:active {
    transform: translateY(1px);
}

.btn-block {
    width: 100%;
}

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

.btn-icon-only {
    padding: 8px;
    border-radius: var(--radius-sm);
}

.btn-danger {
    background: rgba(239, 68, 68, 0.15);
    color: #ef4444;
}
.btn-danger:hover {
    background: #ef4444;
    color: #ffffff;
}

/* --- Theme Toggle Switch --- */
.theme-toggle-btn {
    position: fixed;
    top: 24px;
    right: 24px;
    z-index: 100;
    background: var(--bg-panel);
    border: 1px solid var(--border-glass);
    box-shadow: var(--shadow-premium);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    color: var(--text-primary);
    width: 44px;
    height: 44px;
    border-radius: var(--radius-full);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-normal);
}
.theme-toggle-btn:hover {
    transform: rotate(15deg) scale(1.08);
}
.theme-toggle-btn i {
    position: absolute;
    transition: transform var(--transition-normal), opacity var(--transition-normal);
}
html[data-theme="dark"] .sun-icon { opacity: 0; transform: scale(0.5) rotate(90deg); }
html[data-theme="dark"] .moon-icon { opacity: 1; transform: scale(1); }
html[data-theme="light"] .sun-icon { opacity: 1; transform: scale(1); }
html[data-theme="light"] .moon-icon { opacity: 0; transform: scale(0.5) rotate(-90deg); }

/* --- Forms & Inputs --- */
.form-group {
    margin-bottom: 20px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.input-wrapper {
    position: relative;
    width: 100%;
}
.input-wrapper input {
    padding-left: 40px;
}
.input-icon {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    width: 18px;
    height: 18px;
}

input[type="text"],
input[type="password"],
input[type="date"],
select,
textarea {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg-input);
    border: 1px solid var(--border-input);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 0.95rem;
    outline: none;
    transition: all var(--transition-fast);
}

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

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

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

/* --- SPA View Navigation --- */
.app-view {
    display: none;
    opacity: 0;
    transition: opacity var(--transition-slow);
}
.app-view.active {
    display: block;
    opacity: 1;
}
.role-workspace-view.hidden {
    display: none !important;
}

#app-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 24px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ==================== LOGIN VIEW ==================== */
#login-view {
    display: none;
    align-items: center;
    justify-content: center;
    min-height: 90vh;
    padding: 40px 16px;
}
#login-view.active {
    display: flex;
}

.login-card {
    width: 100%;
    max-width: 440px;
    padding: 40px;
}

.login-header {
    text-align: center;
    margin-bottom: 32px;
}

.logo-wrapper {
    background: var(--primary-glow);
    color: var(--primary);
    width: 64px;
    height: 64px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px auto;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}
.logo-icon {
    width: 32px;
    height: 32px;
}

.login-header h1 {
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 8px;
    letter-spacing: -0.5px;
}
.login-header p {
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.login-divider {
    text-align: center;
    position: relative;
    margin: 24px 0;
}
.login-divider::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--border-glass);
    z-index: 1;
}
.login-divider span {
    position: relative;
    background: var(--bg-app);
    padding: 0 12px;
    font-size: 0.8rem;
    color: var(--text-muted);
    z-index: 2;
    transition: background var(--transition-slow);
}

/* Demo Accounts List */
.demo-accounts {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.demo-account-btn {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-md);
    cursor: pointer;
    text-align: left;
    color: var(--text-primary);
    transition: all var(--transition-fast);
    width: 100%;
}
.demo-account-btn:hover {
    background: var(--bg-panel-hover);
    transform: translateY(-2px);
}

.demo-account-btn .avatar {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
}

.manager-account .avatar {
    background: var(--overdue-bg);
    color: var(--overdue-color);
}
.staff-account .avatar {
    background: var(--todo-bg);
    color: var(--todo-color);
}

.demo-account-btn .account-info {
    display: flex;
    flex-direction: column;
}
.demo-account-btn .account-info .name {
    font-size: 0.9rem;
    font-weight: 500;
}
.demo-account-btn .account-info .username {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* ==================== MAIN WORKSPACE & HEADER ==================== */
#app-workspace {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.main-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 24px;
    width: 100%;
}

.header-logo {
    display: flex;
    align-items: center;
    gap: 12px;
}
.header-logo .logo-icon {
    color: var(--primary);
    width: 28px;
    height: 28px;
}
.header-logo .logo-text {
    font-size: 1.4rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 20px;
}

.user-profile-badge {
    display: flex;
    align-items: center;
    gap: 10px;
    padding-right: 16px;
    border-right: 1px solid var(--border-glass);
}

.user-avatar {
    width: 38px;
    height: 38px;
    background: var(--primary);
    color: #ffffff;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 1.1rem;
    box-shadow: 0 4px 10px var(--primary-glow);
}

.user-meta {
    display: flex;
    flex-direction: column;
}
.user-name {
    font-size: 0.9rem;
    font-weight: 600;
}
.user-role {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

/* ==================== WORKSPACE VIEWS COMMON ==================== */
.view-title-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
}
.view-title-bar h2 {
    font-size: 1.6rem;
    font-weight: 600;
    letter-spacing: -0.3px;
    margin-bottom: 4px;
}
.view-title-bar .subtitle {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* ==================== MANAGER VIEW ==================== */

/* Metrics Dashboard Cards */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 28px;
}

.metric-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px;
}

.metric-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}
.metric-icon.total { background: var(--todo-bg); color: var(--todo-color); }
.metric-icon.pending { background: var(--inprogress-bg); color: var(--inprogress-color); }
.metric-icon.review { background: var(--review-bg); color: var(--review-color); }
.metric-icon.completed { background: var(--done-bg); color: var(--done-color); }
.metric-icon.overdue { background: var(--overdue-bg); color: var(--overdue-color); }

.metric-info {
    display: flex;
    flex-direction: column;
}
.metric-label {
    font-size: 0.8rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.metric-value {
    font-size: 1.8rem;
    font-weight: 700;
}

/* Dashboard Layout Grid */
.dashboard-layout {
    display: grid;
    grid-template-columns: 340px 1fr;
    gap: 24px;
    align-items: start;
}

@media (max-width: 1024px) {
    .dashboard-layout {
        grid-template-columns: 1fr;
    }
}

.section-card {
    padding: 24px;
    height: 100%;
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}
.section-header h3 {
    font-size: 1.1rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 10px;
}

/* Team Member Progress List */
.team-progress-list {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.member-progress-card {
    padding: 14px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}
.member-progress-card:hover {
    background: rgba(255, 255, 255, 0.04);
}

.member-progress-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 8px;
}

.member-progress-header .name-badge {
    display: flex;
    align-items: center;
    gap: 8px;
}

.member-progress-header .avatar {
    width: 28px;
    height: 28px;
    background: var(--bg-scroll);
    color: var(--text-primary);
    font-size: 0.8rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
}

.member-progress-header .name {
    font-size: 0.9rem;
    font-weight: 500;
}

.member-progress-header .stats {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.progress-track {
    width: 100%;
    height: 6px;
    background: var(--bg-scroll);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary), var(--done-color));
    border-radius: var(--radius-full);
    width: 0%;
    transition: width var(--transition-slow);
}

.member-progress-card .member-actions {
    display: flex;
    justify-content: flex-end;
    margin-top: 8px;
    opacity: 0;
    transition: opacity var(--transition-fast);
}
.member-progress-card:hover .member-actions {
    opacity: 1;
}

/* Master Task Table Container */
.search-filter-header {
    flex-wrap: wrap;
    gap: 16px;
}

.filter-controls {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.search-box {
    position: relative;
    width: 240px;
}
.search-box input {
    padding-left: 36px;
    padding-top: 8px;
    padding-bottom: 8px;
    font-size: 0.85rem;
}
.search-icon {
    position: absolute;
    left: 10px;
    top: 50%;
    transform: translateY(-50%);
    width: 16px;
    height: 16px;
    color: var(--text-muted);
}

.filter-select {
    padding: 8px 12px;
    font-size: 0.85rem;
    width: auto;
}

.table-container {
    overflow-x: auto;
    width: 100%;
    min-height: 250px;
    position: relative;
}

.task-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
}

.task-table th,
.task-table td {
    padding: 14px 16px;
    border-bottom: 1px solid var(--border-glass);
    font-size: 0.9rem;
}

.task-table th {
    font-weight: 600;
    color: var(--text-secondary);
    background: rgba(0, 0, 0, 0.05);
}

.task-table tbody tr {
    transition: background var(--transition-fast);
}
.task-table tbody tr:hover {
    background: rgba(255, 255, 255, 0.02);
}

/* Priority & Status Badges */
.priority-indicator {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.8rem;
    font-weight: 500;
}
.priority-dot {
    width: 8px;
    height: 8px;
    border-radius: var(--radius-full);
}
.priority-dot.low { background-color: var(--priority-low); box-shadow: 0 0 6px var(--priority-low); }
.priority-dot.medium { background-color: var(--priority-medium); box-shadow: 0 0 6px var(--priority-medium); }
.priority-dot.high { background-color: var(--priority-high); box-shadow: 0 0 6px var(--priority-high); }

.status-badge {
    display: inline-flex;
    padding: 4px 10px;
    font-size: 0.75rem;
    font-weight: 500;
    border-radius: var(--radius-full);
}
.status-badge.todo { color: var(--todo-color); background: var(--todo-bg); }
.status-badge.inprogress { color: var(--inprogress-color); background: var(--inprogress-bg); }
.status-badge.review { color: var(--review-color); background: var(--review-bg); }
.status-badge.done { color: var(--done-color); background: var(--done-bg); }
.status-badge.overdue { color: var(--overdue-color); background: var(--overdue-bg); }

.table-title-desc {
    display: flex;
    flex-direction: column;
}
.table-title-desc .task-title {
    font-weight: 500;
    color: var(--text-primary);
}
.table-title-desc .task-desc {
    font-size: 0.75rem;
    color: var(--text-muted);
    max-width: 250px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.overdue-text {
    color: var(--overdue-color);
    font-weight: 500;
}

.no-data-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 60px 0;
    gap: 12px;
    color: var(--text-muted);
}
.no-data-placeholder i {
    width: 48px;
    height: 48px;
}
.no-data-placeholder p {
    font-size: 0.95rem;
}
.no-data-placeholder.hidden {
    display: none;
}

/* ==================== STAFF KANBAN BOARD VIEW ==================== */
.kanban-board {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    align-items: start;
    flex: 1;
}

@media (max-width: 1024px) {
    .kanban-board {
        grid-template-columns: 1fr 1fr;
    }
}
@media (max-width: 640px) {
    .kanban-board {
        grid-template-columns: 1fr;
    }
}

.kanban-column {
    background: rgba(255, 255, 255, 0.015);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-lg);
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    min-height: 500px;
    transition: background var(--transition-normal), border var(--transition-normal);
}

.kanban-column.drag-over {
    background: rgba(99, 102, 241, 0.05);
    border-color: var(--primary);
    box-shadow: 0 0 15px rgba(99, 102, 241, 0.15) inset;
}

.column-header {
    display: flex;
    align-items: center;
    gap: 10px;
    padding-bottom: 8px;
    border-bottom: 1.5px solid var(--border-glass);
}
.column-header h3 {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
}

.column-badge {
    font-size: 0.75rem;
    font-weight: 700;
    width: 22px;
    height: 22px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
}
.badge-todo { background: var(--todo-bg); color: var(--todo-color); }
.badge-inprogress { background: var(--inprogress-bg); color: var(--inprogress-color); }
.badge-review { background: var(--review-bg); color: var(--review-color); }
.badge-done { background: var(--done-bg); color: var(--done-color); }

.kanban-cards-container {
    display: flex;
    flex-direction: column;
    gap: 12px;
    min-height: 400px;
}

/* Kanban Task Card */
.task-card {
    background: var(--bg-panel);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-md);
    padding: 16px;
    cursor: grab;
    user-select: none;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast);
}
.task-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
    border-color: var(--primary-glow);
}
.task-card:active {
    cursor: grabbing;
}
.task-card.dragging {
    opacity: 0.4;
    cursor: grabbing;
    border: 1.5px dashed var(--primary);
    transform: scale(0.95);
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 10px;
}

.card-title {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.4;
    margin-bottom: 6px;
    word-break: break-word;
}

.card-desc {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 12px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    line-height: 1.5;
}

.card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-top: 1px solid var(--border-glass);
    padding-top: 10px;
    font-size: 0.75rem;
    color: var(--text-muted);
}
.card-due {
    display: flex;
    align-items: center;
    gap: 4px;
}
.card-due i {
    width: 14px;
    height: 14px;
}

.card-due.danger-due {
    color: var(--priority-high);
    font-weight: 500;
}

/* ==================== SYSTEM MODALS ==================== */
.modal-overlay {
    position: fixed;
    inset: 0;
    z-index: 200;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    display: none;
    align-items: center;
    justify-content: center;
    padding: 16px;
    opacity: 0;
    transition: opacity var(--transition-normal);
}
.modal-overlay.active {
    display: flex;
    opacity: 1;
}

.modal-content {
    width: 100%;
    max-width: 550px;
    padding: 32px;
    position: relative;
}
.modal-content.max-w-sm {
    max-width: 400px;
}

.modal-close {
    position: absolute;
    top: 20px;
    right: 20px;
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    width: 32px;
    height: 32px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}
.modal-close:hover {
    background: var(--bg-scroll);
    color: var(--text-primary);
}

.modal-content h3 {
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 24px;
}

.modal-actions {
    display: flex;
    gap: 12px;
    justify-content: flex-end;
    margin-top: 28px;
}
.justify-end {
    justify-content: flex-end;
}

/* --- Task Detail Modal View --- */
.detail-header {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
}

.priority-badge {
    padding: 3px 8px;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    color: #ffffff;
}
.priority-badge.low { background: var(--priority-low); }
.priority-badge.medium { background: var(--priority-medium); }
.priority-badge.high { background: var(--priority-high); }

.detail-title {
    font-size: 1.5rem;
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 20px;
    letter-spacing: -0.3px;
}

.detail-dates-assignee {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
    gap: 16px;
    margin-bottom: 20px;
}

.detail-meta-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
}
.detail-meta-item i {
    color: var(--primary);
    width: 18px;
    height: 18px;
    margin-top: 2px;
}
.detail-meta-item .meta-label {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 2px;
}
.detail-meta-item .meta-value {
    font-size: 0.88rem;
    font-weight: 500;
}

.detail-divider {
    border: none;
    border-top: 1px solid var(--border-glass);
    margin: 20px 0;
}

.detail-body {
    margin-bottom: 12px;
}
.detail-body h4 {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 8px;
}
.detail-body p {
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--text-primary);
    white-space: pre-wrap;
}

/* ==================== ANIMATIONS ==================== */
@keyframes bounceIn {
    0% {
        opacity: 0;
        transform: scale(0.9) translateY(10px);
    }
    70% {
        opacity: 0.9;
        transform: scale(1.02) translateY(-2px);
    }
    100% {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.bounce-in {
    animation: bounceIn 0.4s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

/* Responsive Overrides */
@media (max-width: 768px) {
    #app-container {
        padding: 12px;
    }
    
    .main-header {
        flex-direction: column;
        gap: 16px;
        align-items: center;
        text-align: center;
    }
    
    .header-actions {
        width: 100%;
        justify-content: space-between;
    }
    
    .view-title-bar {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }
    
    .view-title-bar button {
        width: 100%;
    }
    
    .form-row {
        grid-template-columns: 1fr;
        gap: 0;
    }
    
    .modal-content {
        padding: 20px;
    }
}