/* css/style.css */

/* --- 1. Global Reset & Variables --- */
:root {
    --bg-main: #0b0f19;
    --bg-gradient: linear-gradient(135deg, #0b0f19 0%, #111827 100%);
    --bg-card: rgba(22, 28, 45, 0.6);
    --bg-card-hover: rgba(28, 37, 60, 0.85);
    --border-color: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(99, 102, 241, 0.4);
    
    --color-primary: #6366f1; /* Indigo */
    --color-primary-glow: rgba(99, 102, 241, 0.3);
    --color-secondary: #a78bfa; /* Light Purple */
    --color-text-main: #f3f4f6;
    --color-text-muted: #9ca3af;
    
    /* Status Colors */
    --color-success: #10b981; /* Neon Green */
    --color-success-glow: rgba(16, 185, 129, 0.2);
    --color-warning: #f59e0b; /* Amber */
    --color-warning-glow: rgba(245, 158, 11, 0.2);
    --color-danger: #ef4444; /* Neon Red */
    --color-danger-glow: rgba(239, 68, 68, 0.2);
    --color-info: #06b6d4; /* Cyan */
    --color-info-glow: rgba(6, 182, 212, 0.2);
    
    --font-heading: 'Outfit', 'Sarabun', sans-serif;
    --font-body: 'Sarabun', sans-serif;
    --transition-speed: 0.3s;
    --border-radius: 16px;
    --border-radius-sm: 8px;
}

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

body {
    background: var(--bg-main);
    background-image: var(--bg-gradient);
    color: var(--color-text-main);
    font-family: var(--font-body);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
    line-height: 1.6;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg-main);
}
::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--color-primary);
}

/* --- 2. Typography & Core Elements --- */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    letter-spacing: -0.02em;
    color: #ffffff;
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: all var(--transition-speed) ease;
}

a:hover {
    color: var(--color-secondary);
}

/* --- 3. Layout Grid --- */
.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

.main-content {
    flex: 1;
    padding: 40px 0;
}

/* --- 4. Navigation Bar (Glassmorphism Header) --- */
.navbar {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(11, 15, 25, 0.75);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    padding: 16px 0;
}

.navbar-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.navbar-brand {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: #ffffff;
    display: flex;
    align-items: center;
    gap: 10px;
}

.navbar-brand span {
    background: linear-gradient(90deg, #6366f1, #a78bfa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.navbar-brand i {
    font-size: 1.8rem;
    color: var(--color-primary);
}

.navbar-menu {
    display: flex;
    list-style: none;
    gap: 8px;
    align-items: center;
}

.navbar-item a {
    color: var(--color-text-muted);
    font-weight: 500;
    padding: 8px 16px;
    border-radius: var(--border-radius-sm);
    display: flex;
    align-items: center;
    gap: 8px;
}

.navbar-item a:hover,
.navbar-item.active a {
    color: #ffffff;
    background: rgba(255, 255, 255, 0.05);
}

.navbar-item.active a {
    border-bottom: 2px solid var(--color-primary);
    border-radius: var(--border-radius-sm) var(--border-radius-sm) 0 0;
}

/* Responsive Menu Toggle */
.menu-toggle {
    display: none;
    font-size: 1.5rem;
    background: none;
    border: none;
    color: #ffffff;
    cursor: pointer;
}

/* --- 5. Custom Cards (Glassmorphism) --- */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 24px;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    transition: all var(--transition-speed) cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.2);
    margin-bottom: 24px;
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.02) 0%, rgba(255, 255, 255, 0) 100%);
    pointer-events: none;
}

.card:hover {
    transform: translateY(-4px);
    background: var(--bg-card-hover);
    border-color: var(--border-hover);
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.1);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 15px;
}

.card-title {
    font-size: 1.25rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

/* --- 6. Forms & Inputs --- */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 0.9rem;
    color: var(--color-text-muted);
    margin-bottom: 8px;
    font-weight: 500;
}

.form-control {
    width: 100%;
    background: rgba(17, 24, 39, 0.5);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    padding: 12px 16px;
    color: #ffffff;
    font-family: var(--font-body);
    font-size: 0.95rem;
    transition: all var(--transition-speed) ease;
}

.form-control:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-glow);
    background: rgba(17, 24, 39, 0.8);
}

select.form-control option {
    background: var(--bg-main);
    color: #ffffff;
}

/* --- 7. Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    font-size: 0.95rem;
    font-family: var(--font-heading);
    font-weight: 600;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: all var(--transition-speed) cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid transparent;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary) 0%, #4338ca 100%);
    color: #ffffff;
    box-shadow: 0 4px 15px var(--color-primary-glow);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #4f46e5 0%, #3730a3 100%);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.5);
    transform: translateY(-1px);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    color: var(--color-text-main);
    border-color: var(--border-color);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--color-text-muted);
}

.btn-danger {
    background: linear-gradient(135deg, var(--color-danger) 0%, #b91c1c 100%);
    color: #ffffff;
    box-shadow: 0 4px 15px var(--color-danger-glow);
}

.btn-danger:hover {
    background: linear-gradient(135deg, #dc2626 0%, #991b1b 100%);
    box-shadow: 0 6px 20px rgba(239, 68, 68, 0.5);
}

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

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

/* --- 8. Tables --- */
.table-responsive {
    width: 100%;
    overflow-x: auto;
    border-radius: var(--border-radius-sm);
    border: 1px solid var(--border-color);
}

.table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    background: rgba(17, 24, 39, 0.3);
}

.table th {
    background: rgba(255, 255, 255, 0.02);
    padding: 16px;
    font-family: var(--font-heading);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-text-muted);
    border-bottom: 1px solid var(--border-color);
}

.table td {
    padding: 16px;
    font-size: 0.95rem;
    color: var(--color-text-main);
    border-bottom: 1px solid var(--border-color);
    vertical-align: middle;
}

.table tbody tr {
    transition: background-color var(--transition-speed) ease;
}

.table tbody tr:hover {
    background-color: rgba(255, 255, 255, 0.02);
}

/* --- 9. Badges & Indicators --- */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.badge-success {
    background: var(--color-success-glow);
    color: var(--color-success);
    border: 1px solid rgba(16, 185, 129, 0.3);
}

.badge-success .dot {
    background: var(--color-success);
}

.badge-warning {
    background: var(--color-warning-glow);
    color: var(--color-warning);
    border: 1px solid rgba(245, 158, 11, 0.3);
}

.badge-warning .dot {
    background: var(--color-warning);
}

.badge-danger {
    background: var(--color-danger-glow);
    color: var(--color-danger);
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.badge-danger .dot {
    background: var(--color-danger);
}

.badge-info {
    background: var(--color-info-glow);
    color: var(--color-info);
    border: 1px solid rgba(6, 182, 212, 0.3);
}

.badge-info .dot {
    background: var(--color-info);
}

.badge .dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    display: inline-block;
}

/* Priority Badges */
.badge-priority {
    padding: 3px 8px;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 500;
}

.priority-high {
    background: rgba(239, 68, 68, 0.15);
    color: #fca5a5;
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.priority-medium {
    background: rgba(245, 158, 11, 0.15);
    color: #fcd34d;
    border: 1px solid rgba(245, 158, 11, 0.2);
}

.priority-low {
    background: rgba(16, 185, 129, 0.15);
    color: #6ee7b7;
    border: 1px solid rgba(16, 185, 129, 0.2);
}

/* --- 10. Dashboard Layout & KPIs --- */
.kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.kpi-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 20px;
    position: relative;
    overflow: hidden;
    transition: all var(--transition-speed) ease;
}

.kpi-card:hover {
    transform: translateY(-3px);
    border-color: var(--border-hover);
    box-shadow: 0 8px 25px rgba(99, 102, 241, 0.08);
}

.kpi-icon {
    width: 50px;
    height: 50px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.kpi-icon.primary { background: rgba(99, 102, 241, 0.1); color: var(--color-primary); }
.kpi-icon.success { background: rgba(16, 185, 129, 0.1); color: var(--color-success); }
.kpi-icon.warning { background: rgba(245, 158, 11, 0.1); color: var(--color-warning); }
.kpi-icon.danger { background: rgba(239, 68, 68, 0.1); color: var(--color-danger); }
.kpi-icon.info { background: rgba(6, 182, 212, 0.1); color: var(--color-info); }

.kpi-info h3 {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 4px;
}

.kpi-value {
    font-size: 1.8rem;
    font-weight: 700;
    font-family: var(--font-heading);
    color: #ffffff;
}

/* Dashboard Two-Column layout */
.dashboard-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 24px;
}

@media (max-width: 992px) {
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
}

/* Circular Chart Widget */
.progress-circle-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 20px 0;
}

.progress-circle {
    position: relative;
    width: 150px;
    height: 150px;
}

.progress-circle svg {
    width: 100%;
    height: 100%;
    transform: rotate(-90deg);
}

.progress-circle-bg {
    fill: none;
    stroke: rgba(255, 255, 255, 0.05);
    stroke-width: 10;
}

.progress-circle-bar {
    fill: none;
    stroke: url(#progress-gradient);
    stroke-width: 10;
    stroke-dasharray: 440;
    stroke-dashoffset: 440;
    stroke-linecap: round;
    transition: stroke-dashoffset 1s ease-out;
}

.progress-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 700;
    color: #ffffff;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.progress-text-sub {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    font-weight: 400;
    margin-top: -4px;
}

/* --- 11. Modal Window --- */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1000;
    display: none;
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex;
}

.modal-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(7, 10, 19, 0.6);
    backdrop-filter: blur(8px);
}

.modal-container {
    position: relative;
    background: #111827;
    border: 1px solid var(--border-color);
    width: 90%;
    max-width: 550px;
    border-radius: var(--border-radius);
    padding: 30px;
    z-index: 10;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
    animation: modalScaleUp 0.3s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

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

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 15px;
}

.modal-close {
    background: none;
    border: none;
    color: var(--color-text-muted);
    font-size: 1.5rem;
    cursor: pointer;
    transition: color var(--transition-speed) ease;
}

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

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    margin-top: 25px;
    border-top: 1px solid var(--border-color);
    padding-top: 20px;
}

/* --- 12. Miscellaneous & Helpers --- */
.flex-between {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.gap-10 {
    display: flex;
    gap: 10px;
    align-items: center;
}

.text-center { text-align: center; }
.text-muted { color: var(--color-text-muted); }
.mt-20 { margin-top: 20px; }
.mb-20 { margin-bottom: 20px; }

/* Filter Bar Section */
.filter-bar {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 20px;
    margin-bottom: 30px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)) auto;
    gap: 16px;
    align-items: end;
}

@media (max-width: 768px) {
    .filter-bar {
        grid-template-columns: 1fr;
    }
    .navbar-menu {
        display: none;
        flex-direction: column;
        width: 100%;
        position: absolute;
        top: 100%;
        left: 0;
        background: #111827;
        border-bottom: 1px solid var(--border-color);
        padding: 20px;
    }
    .navbar-menu.active {
        display: flex;
    }
    .menu-toggle {
        display: block;
    }
    .navbar-item a {
        width: 100%;
    }
}

/* Overdue Pulse indicator */
.pulse-indicator {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--color-danger);
    box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.7);
    animation: pulse 1.6s infinite;
}

@keyframes pulse {
    0% {
        transform: scale(0.95);
        box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.7);
    }
    70% {
        transform: scale(1);
        box-shadow: 0 0 0 8px rgba(239, 68, 68, 0);
    }
    100% {
        transform: scale(0.95);
        box-shadow: 0 0 0 0 rgba(239, 68, 68, 0);
    }
}