/* ==========================================================================
   Executive Assistant Dashboard - Stylesheet
   Design Theme: Modern Dark Glassmorphism / Slate & Gold Accents
   ========================================================================== */

:root {
    --bg-dark: #0f172a;
    --bg-card: rgba(30, 41, 59, 0.7);
    --bg-card-hover: rgba(51, 65, 85, 0.8);
    --border-color: rgba(255, 255, 255, 0.1);
    --border-glow: rgba(59, 130, 246, 0.3);
    
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;

    /* Status Colors */
    --color-urgent: #ef4444;
    --color-urgent-bg: rgba(239, 68, 68, 0.15);
    --color-warning: #f59e0b;
    --color-warning-bg: rgba(245, 158, 11, 0.15);
    --color-review: #3b82f6;
    --color-review-bg: rgba(59, 130, 246, 0.15);
    --color-success: #10b981;
    --color-success-bg: rgba(16, 185, 129, 0.15);
    --color-todo: #94a3b8;
    --color-todo-bg: rgba(148, 163, 184, 0.15);

    --primary-blue: #3b82f6;
    --primary-blue-hover: #2563eb;
    
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-full: 9999px;

    --font-heading: 'Prompt', -apple-system, sans-serif;
    --font-body: 'Sarabun', -apple-system, sans-serif;
}

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

body {
    background-color: var(--bg-dark);
    background-image: 
        radial-gradient(at 0% 0%, rgba(59, 130, 246, 0.12) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(245, 158, 11, 0.08) 0px, transparent 50%);
    background-attachment: fixed;
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 15px;
    line-height: 1.6;
    min-height: 100vh;
    padding-bottom: 70px; /* Space for mobile nav */
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
}

/* App Container */
.app-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 24px 20px;
}

/* Header & Briefing */
.executive-header {
    margin-bottom: 28px;
}

.header-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 14px;
}

.avatar-badge {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, #3b82f6, #1d4ed8);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    box-shadow: 0 4px 14px rgba(59, 130, 246, 0.4);
}

.app-title {
    font-size: 1.6rem;
    letter-spacing: -0.02em;
    color: #ffffff;
}

.app-subtitle {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* Secretary Persona Briefing Box */
.briefing-box {
    background: rgba(30, 41, 59, 0.8);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(59, 130, 246, 0.3);
    border-left: 5px solid var(--primary-blue);
    border-radius: var(--radius-lg);
    padding: 16px 20px;
    display: flex;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 20px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

.briefing-avatar {
    font-size: 32px;
    background: rgba(255, 255, 255, 0.05);
    padding: 8px;
    border-radius: var(--radius-md);
}

.briefing-content {
    flex: 1;
}

.briefing-title {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-family: var(--font-heading);
    font-weight: 600;
    color: #60a5fa;
    margin-bottom: 4px;
    font-size: 1rem;
}

.current-date-badge {
    font-size: 0.8rem;
    color: var(--text-muted);
    background: rgba(255, 255, 255, 0.05);
    padding: 3px 10px;
    border-radius: var(--radius-full);
}

.briefing-text {
    font-size: 0.95rem;
    color: #e2e8f0;
}

/* Quick Metrics Cards */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 14px;
}

.metric-card {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 14px 18px;
    display: flex;
    align-items: center;
    gap: 14px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.metric-card:hover {
    transform: translateY(-2px);
    border-color: rgba(255, 255, 255, 0.25);
    background: var(--bg-card-hover);
}

.metric-card.active-filter {
    border-color: var(--primary-blue);
    box-shadow: 0 0 12px rgba(59, 130, 246, 0.3);
}

.metric-icon {
    font-size: 26px;
}

.metric-info {
    display: flex;
    flex-direction: column;
}

.metric-value {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 700;
    line-height: 1.2;
}

.metric-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* Metric color themes */
.metric-urgent .metric-value { color: var(--color-urgent); }
.metric-thisweek .metric-value { color: #f59e0b; }
.metric-doing .metric-value { color: var(--color-warning); }
.metric-review .metric-value { color: var(--color-review); }
.metric-completed .metric-value { color: var(--color-success); }

/* Toolbar & Filters */
.toolbar {
    background: rgba(30, 41, 59, 0.6);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 16px;
    margin-bottom: 24px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.search-and-filter {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    align-items: center;
    justify-content: space-between;
}

.search-box {
    position: relative;
    flex: 1;
    min-width: 260px;
}

.search-icon {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 14px;
    color: var(--text-muted);
}

.search-box input {
    width: 100%;
    padding: 10px 14px 10px 36px;
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.9rem;
    outline: none;
    transition: border-color 0.2s ease;
}

.search-box input:focus {
    border-color: var(--primary-blue);
    box-shadow: 0 0 8px rgba(59, 130, 246, 0.3);
}

.filter-pills {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.pill-btn {
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 6px 14px;
    border-radius: var(--radius-full);
    font-family: var(--font-body);
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.pill-btn:hover {
    color: var(--text-primary);
    border-color: rgba(255, 255, 255, 0.3);
}

.pill-btn.active {
    background: var(--primary-blue);
    border-color: var(--primary-blue);
    color: #ffffff;
    font-weight: 500;
}

.pill-btn.highlight-thisweek {
    border-color: rgba(245, 158, 11, 0.5);
    color: #fbbf24;
}

.pill-btn.highlight-thisweek.active {
    background: linear-gradient(135deg, #d97706, #b45309);
    border-color: #f59e0b;
    color: #ffffff;
}

.view-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid var(--border-color);
    padding-top: 12px;
    flex-wrap: wrap;
    gap: 12px;
}

.sort-dropdown {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.sort-dropdown select {
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    font-family: var(--font-body);
    font-size: 0.85rem;
    outline: none;
    cursor: pointer;
}

.view-switchers {
    display: flex;
    gap: 6px;
}

.view-btn {
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 6px 14px;
    border-radius: var(--radius-sm);
    font-family: var(--font-heading);
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.view-btn.active {
    background: rgba(59, 130, 246, 0.2);
    border-color: var(--primary-blue);
    color: #60a5fa;
    font-weight: 600;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 10px 18px;
    border-radius: var(--radius-md);
    font-family: var(--font-heading);
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    border: none;
    transition: all 0.2s ease;
}

.btn-primary {
    background: linear-gradient(135deg, #3b82f6, #1d4ed8);
    color: #ffffff;
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #2563eb, #1e40af);
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(59, 130, 246, 0.4);
}

.btn-secondary {
    background: rgba(51, 65, 85, 0.6);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: rgba(71, 85, 105, 0.8);
}

/* View Containers */
.view-container {
    display: none;
}

.view-container.active {
    display: block;
}

/* View 1: Timeline Group Layout */
.timeline-sections {
    display: flex;
    flex-direction: column;
    gap: 28px;
}

.timeline-group {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 20px;
}

.group-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border-color);
}

.group-header h2 {
    font-size: 1.15rem;
}

.group-badge {
    padding: 2px 10px;
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 600;
}

.badge-danger { background: var(--color-urgent-bg); color: var(--color-urgent); }
.badge-urgent { background: rgba(239, 68, 68, 0.2); color: #f87171; }
.badge-warning { background: var(--color-warning-bg); color: var(--color-warning); }
.badge-success { background: var(--color-success-bg); color: var(--color-success); }

.task-cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 16px;
}

/* Task Card Component */
.task-card {
    background: rgba(15, 23, 42, 0.7);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 16px;
    position: relative;
    transition: all 0.2s ease;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.task-card:hover {
    border-color: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
}

.task-card.priority-high {
    border-left: 4px solid var(--color-urgent);
}

.task-card.priority-medium {
    border-left: 4px solid var(--color-warning);
}

.task-card.priority-low {
    border-left: 4px solid var(--color-success);
}

.task-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 8px;
}

.task-title {
    font-size: 1.05rem;
    font-weight: 600;
    color: #ffffff;
    line-height: 1.3;
}

.task-badges {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

.urgency-pill {
    padding: 2px 8px;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    white-space: nowrap;
}

.thisweek-tag {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.2), rgba(217, 119, 6, 0.3));
    color: #fbbf24;
    border: 1px solid rgba(245, 158, 11, 0.4);
    padding: 2px 8px;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
}

.task-desc {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 14px;
    white-space: pre-line;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.task-dates {
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
    color: var(--text-muted);
    background: rgba(255, 255, 255, 0.03);
    padding: 8px 10px;
    border-radius: var(--radius-sm);
    margin-bottom: 12px;
}

.date-due.overdue {
    color: var(--color-urgent);
    font-weight: 600;
}

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

.status-select {
    background: rgba(30, 41, 59, 0.9);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    font-family: var(--font-body);
    font-size: 0.8rem;
    outline: none;
    cursor: pointer;
}

.card-actions {
    display: flex;
    gap: 6px;
}

.action-icon-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 14px;
    cursor: pointer;
    padding: 4px 6px;
    border-radius: var(--radius-sm);
    transition: all 0.2s ease;
}

.action-icon-btn:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.1);
}

.action-icon-btn.delete:hover {
    color: var(--color-urgent);
    background: var(--color-urgent-bg);
}

/* View 2: Kanban Board */
.kanban-board {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    overflow-x: auto;
    padding-bottom: 12px;
}

.kanban-column {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 16px;
    min-height: 500px;
    display: flex;
    flex-direction: column;
}

.kanban-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--border-color);
}

.kanban-header h3 {
    font-size: 1rem;
    flex: 1;
}

.col-count {
    background: rgba(255, 255, 255, 0.1);
    padding: 2px 8px;
    border-radius: var(--radius-full);
    font-size: 0.8rem;
}

.kanban-cards {
    display: flex;
    flex-direction: column;
    gap: 12px;
    flex: 1;
}

/* Column Theme Colors */
.column-todo { border-bottom-color: var(--color-todo); }
.column-doing { border-bottom-color: var(--color-warning); }
.column-review { border-bottom-color: var(--color-review); }
.column-completed { border-bottom-color: var(--color-success); }

/* View 3: Table View */
.table-wrapper {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow-x: auto;
}

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

.task-table th {
    background: rgba(15, 23, 42, 0.8);
    color: var(--text-secondary);
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.85rem;
    padding: 14px 16px;
    border-bottom: 1px solid var(--border-color);
}

.task-table td {
    padding: 14px 16px;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.9rem;
    vertical-align: top;
}

.task-table tr:hover td {
    background: rgba(255, 255, 255, 0.03);
}

.table-title {
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 2px;
}

.table-desc {
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    background: var(--bg-card);
    border: 1px dashed var(--border-color);
    border-radius: var(--radius-lg);
    margin-top: 20px;
}

.empty-icon {
    font-size: 48px;
    margin-bottom: 12px;
}

.empty-state h3 {
    font-size: 1.2rem;
    margin-bottom: 6px;
}

.empty-state p {
    color: var(--text-muted);
}

.hidden {
    display: none !important;
}

/* Modal Styling */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 20px;
}

.modal-card {
    background: #1e293b;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 540px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
    overflow: hidden;
    animation: modalSlideUp 0.25s ease-out;
}

@keyframes modalSlideUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 24px;
    background: rgba(15, 23, 42, 0.6);
    border-bottom: 1px solid var(--border-color);
}

.modal-header h3 {
    font-size: 1.15rem;
}

.modal-close {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 24px;
    cursor: pointer;
    line-height: 1;
}

.modal-close:hover {
    color: #ffffff;
}

#task-form {
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
    flex: 1;
}

.form-group label {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.required {
    color: var(--color-urgent);
}

.form-group input,
.form-group textarea,
.form-group select {
    background: rgba(15, 23, 42, 0.7);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 10px 14px;
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.95rem;
    outline: none;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    border-color: var(--primary-blue);
    box-shadow: 0 0 8px rgba(59, 130, 246, 0.3);
}

.form-row {
    display: flex;
    gap: 14px;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    margin-top: 8px;
}

/* Mobile Bottom Navigation */
.mobile-nav {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(12px);
    border-top: 1px solid var(--border-color);
    padding: 8px 16px;
    z-index: 900;
    justify-content: space-around;
}

.mobile-nav-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    font-family: var(--font-heading);
    font-size: 0.75rem;
    cursor: pointer;
}

.mobile-nav-btn.active {
    color: var(--primary-blue);
}

.nav-icon {
    font-size: 18px;
}

.btn-add-mobile {
    color: #ffffff;
    background: var(--primary-blue);
    width: 44px;
    height: 44px;
    border-radius: var(--radius-full);
    justify-content: center;
    box-shadow: 0 4px 10px rgba(59, 130, 246, 0.4);
    margin-top: -14px;
}

.btn-add-mobile .nav-icon {
    font-size: 22px;
    font-weight: 700;
}

/* Responsive Breakpoints */
@media (max-width: 992px) {
    .kanban-board {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .header-top {
        flex-direction: column;
        align-items: flex-start;
        gap: 14px;
    }
    
    .header-actions {
        width: 100%;
    }

    .header-actions .btn {
        width: 100%;
    }

    .briefing-box {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }

    .metrics-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .form-row {
        flex-direction: column;
    }

    .kanban-board {
        grid-template-columns: 1fr;
    }

    .view-switchers {
        display: none; /* Handled by mobile nav */
    }

    .mobile-nav {
        display: flex;
    }
}