/* Custom CSS Design System - VK School Vehicle Booking System */
/* Theme: Modern Green & Yellow Gold (Academic Heritage Palette with Glassmorphism) */

@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700&family=Sarabun:wght@300;400;500;600;700&display=swap');

:root {
    /* Color Palette - Green & Yellow Gold */
    --primary: #15803d;       /* Forest Green */
    --primary-hover: #166534;
    --primary-light: #f0fdf4;
    --primary-rgb: 21, 128, 61;
    
    --accent: #facc15;        /* Golden Yellow */
    --accent-hover: #eab308;
    --accent-rgb: 250, 204, 21;
    
    --secondary: #0f172a;     /* Navy/Slate Dark */
    --secondary-hover: #1e293b;
    
    --bg-main: #f4fbf7;       /* Very soft green tint */
    --bg-card: rgba(255, 255, 255, 0.9);
    --bg-sidebar: #14532d;    /* Deep Forest Green Sidebar */
    
    --text-main: #0f172a;
    --text-muted: #4b5563;
    --text-on-primary: #ffffff;
    --text-on-sidebar: #bbf7d0; /* Soft green-white text */
    --text-on-sidebar-active: #facc15; /* Active gold text */
    
    --border-color: rgba(187, 247, 208, 0.4);
    --border-card: rgba(255, 255, 255, 0.6);
    
    /* Status Colors */
    --color-pending: #d97706;
    --color-approved: #16a34a;
    --color-rejected: #dc2626;
    --color-completed: #0284c7;
    --color-cancelled: #4b5563;
    
    /* System variables */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.08), 0 2px 4px -2px rgb(0 0 0 / 0.08);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.08), 0 4px 6px -4px rgb(0 0 0 / 0.08);
    --shadow-glass: 0 8px 32px 0 rgba(20, 83, 45, 0.06);
    
    --font-heading: 'Outfit', 'Sarabun', sans-serif;
    --font-body: 'Sarabun', sans-serif;
    
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Dark Theme Variables */
.dark-theme {
    --bg-main: #020804;       /* Deep Forest Black */
    --bg-card: rgba(20, 35, 25, 0.8);
    --bg-sidebar: #011c0b;
    
    --text-main: #f3f4f6;
    --text-muted: #9ca3af;
    
    --border-color: rgba(22, 101, 52, 0.3);
    --border-card: rgba(21, 128, 61, 0.15);
    
    --shadow-glass: 0 8px 32px 0 rgba(0, 0, 0, 0.4);
}

/* Global resets & typography */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-body);
    background-color: var(--bg-main);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color var(--transition-normal), color var(--transition-normal);
}

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

/* Main Layout Structure */
.app-container {
    display: flex;
    min-height: 100vh;
}

/* Sidebar Navigation */
.sidebar {
    width: 290px;
    background-color: var(--bg-sidebar);
    color: var(--text-on-sidebar);
    padding: 24px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    flex-shrink: 0;
    transition: all var(--transition-normal);
    z-index: 100;
    border-right: 1px solid rgba(250, 204, 21, 0.1);
}

.logo-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding-bottom: 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    margin-bottom: 25px;
    gap: 12px;
}

.logo-img {
    width: 80px;
    height: 80px;
    object-fit: contain;
    filter: drop-shadow(0 4px 8px rgba(250, 204, 21, 0.25));
    transition: transform var(--transition-normal);
}

.logo-img:hover {
    transform: scale(1.05) rotate(2deg);
}

.logo-text h2 {
    font-size: 18px;
    color: var(--accent); /* Yellow Gold */
    font-weight: 700;
    line-height: 1.2;
}

.logo-text p {
    font-size: 11px;
    color: var(--text-on-sidebar);
    opacity: 0.8;
    letter-spacing: 1px;
    margin-top: 4px;
    font-weight: 500;
}

.nav-menu {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 6px;
    flex-grow: 1;
}

.nav-item a {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 12px 16px;
    color: var(--text-on-sidebar);
    text-decoration: none;
    font-family: var(--font-heading);
    font-weight: 500;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.nav-item a i {
    font-size: 18px;
    width: 24px;
    text-align: center;
}

.nav-item a:hover {
    color: var(--accent);
    background-color: rgba(255, 255, 255, 0.05);
}

.nav-item.active a {
    color: var(--secondary); /* Dark slate text for gold active card */
    background-color: var(--accent); /* Gold bg */
    font-weight: 700;
    box-shadow: 0 4px 15px rgba(250, 204, 21, 0.3);
}

.sidebar-footer {
    padding-top: 15px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.user-profile-widget {
    display: flex;
    align-items: center;
    gap: 12px;
    background-color: rgba(255,255,255,0.04);
    padding: 10px;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(255,255,255,0.06);
}

.user-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background-color: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--secondary);
}

.user-info {
    line-height: 1.3;
}

.user-name {
    font-size: 12px;
    font-weight: 600;
    color: white;
}

.user-role {
    font-size: 10px;
    color: var(--text-on-sidebar);
    opacity: 0.7;
}

/* Main Content Area */
.main-content {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.header {
    height: 70px;
    background-color: var(--bg-card);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 40px;
    backdrop-filter: blur(10px);
    transition: all var(--transition-normal);
}

.header-title h1 {
    font-size: 18px;
    color: var(--primary);
    font-weight: 700;
}

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

/* Theme Switch Button */
.theme-switch {
    background: none;
    border: none;
    color: var(--text-main);
    cursor: pointer;
    font-size: 20px;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color var(--transition-fast);
}

.theme-switch:hover {
    background-color: var(--border-color);
}

/* Content Container & Router Views */
.content-body {
    padding: 30px;
    flex-grow: 1;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.view-section {
    display: none;
    animation: fadeIn var(--transition-normal) forwards;
}

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

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Glassmorphic Cards & Grid system */
.glass-card {
    background: var(--bg-card);
    border: 1px solid var(--border-card);
    border-radius: var(--radius-md);
    padding: 30px;
    box-shadow: var(--shadow-glass);
    backdrop-filter: blur(8px);
    margin-bottom: 25px;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.grid-cols-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.grid-cols-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.grid-cols-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

@media (max-width: 1024px) {
    .grid-cols-2, .grid-cols-3, .grid-cols-4 {
        grid-template-columns: 1fr;
    }
}

/* Form Styles */
.form-title {
    font-size: 18px;
    border-bottom: 2px solid var(--primary);
    padding-bottom: 8px;
    margin-bottom: 25px;
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--primary);
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 8px;
    color: var(--text-main);
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    font-family: var(--font-body);
    font-size: 14px;
    background-color: var(--bg-main);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-main);
    transition: all var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(21, 128, 61, 0.15);
}

textarea.form-control {
    resize: vertical;
    min-height: 100px;
}

/* Passengers dynamic input list */
.passenger-list-container {
    background-color: rgba(var(--primary-rgb), 0.03);
    border: 1px dashed var(--primary);
    border-radius: var(--radius-sm);
    padding: 15px;
    margin-top: 8px;
}

.passenger-input-row {
    display: flex;
    gap: 10px;
    margin-bottom: 8px;
}

.passenger-input-row:last-child {
    margin-bottom: 0;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 11px 22px;
    font-family: var(--font-heading);
    font-size: 13px;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-primary {
    background-color: var(--primary);
    color: white;
    box-shadow: 0 4px 12px rgba(21, 128, 61, 0.2);
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-1px);
}

.btn-accent {
    background-color: var(--accent);
    color: var(--secondary);
    box-shadow: 0 4px 12px rgba(250, 204, 21, 0.2);
}

.btn-accent:hover {
    background-color: var(--accent-hover);
    transform: translateY(-1px);
}

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

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

.btn-danger {
    background-color: var(--color-rejected);
    color: white;
}

.btn-danger:hover {
    background-color: #b91c1c;
}

.btn-success {
    background-color: var(--color-approved);
    color: white;
}

.btn-success:hover {
    background-color: #15803d;
}

.btn-icon-only {
    width: 38px;
    height: 38px;
    padding: 0;
    border-radius: var(--radius-sm);
}

/* KPIs widgets styling */
.kpi-card {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 24px;
    border-radius: var(--radius-md);
    background: var(--bg-card);
    border: 1px solid var(--border-card);
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-fast);
}

.kpi-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.kpi-icon {
    width: 52px;
    height: 52px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    color: white;
}

.kpi-data {
    display: flex;
    flex-direction: column;
}

.kpi-value {
    font-size: 22px;
    font-weight: 700;
    font-family: var(--font-heading);
    line-height: 1.1;
    margin-bottom: 4px;
    color: var(--primary);
}

.kpi-label {
    font-size: 13px;
    color: var(--text-muted);
}

/* Table styles */
.table-responsive {
    width: 100%;
    overflow-x: auto;
    margin-top: 15px;
}

.custom-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13.5px;
    text-align: left;
}

.custom-table th {
    padding: 12px 14px;
    background-color: rgba(var(--primary-rgb), 0.05);
    color: var(--primary);
    font-weight: 600;
    font-family: var(--font-heading);
    border-bottom: 2px solid var(--border-color);
}

.custom-table td {
    padding: 12px 14px;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-main);
}

.custom-table tbody tr:hover {
    background-color: rgba(var(--primary-rgb), 0.02);
}

/* Status badges */
.badge {
    display: inline-block;
    padding: 4px 10px;
    font-size: 11.5px;
    font-weight: 600;
    border-radius: 50px;
    text-transform: capitalize;
}

.badge-pending {
    background-color: rgba(217, 119, 6, 0.12);
    color: var(--color-pending);
}

.badge-approved {
    background-color: rgba(22, 163, 74, 0.12);
    color: var(--color-approved);
}

.badge-rejected {
    background-color: rgba(220, 38, 38, 0.12);
    color: var(--color-rejected);
}

.badge-completed {
    background-color: rgba(2, 132, 199, 0.12);
    color: var(--color-completed);
}

.badge-cancelled {
    background-color: rgba(75, 85, 99, 0.12);
    color: var(--color-cancelled);
}

/* Modal Styling */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(5px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 200;
    animation: fadeIn var(--transition-fast) forwards;
}

.modal.active {
    display: flex;
}

.modal-content {
    background-color: var(--bg-card);
    border: 1px solid var(--border-card);
    border-radius: var(--radius-md);
    width: 100%;
    max-width: 600px;
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    animation: slideUp var(--transition-fast) forwards;
}

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

.modal-header {
    padding: 18px 24px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: rgba(var(--primary-rgb), 0.03);
}

.modal-header h3 {
    font-size: 15px;
    margin: 0;
    color: var(--primary);
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 20px;
    cursor: pointer;
}

.modal-body {
    padding: 24px;
    max-height: 75vh;
    overflow-y: auto;
}

.modal-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    background-color: rgba(var(--primary-rgb), 0.02);
}

/* Tab Navigation inside dashboards */
.tab-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 25px;
    padding-bottom: 2px;
}

.tab-btn {
    background: none;
    border: none;
    padding: 10px 18px;
    font-family: var(--font-heading);
    font-weight: 600;
    color: var(--text-muted);
    cursor: pointer;
    border-bottom: 3px solid transparent;
    transition: all var(--transition-fast);
    font-size: 13.5px;
}

.tab-btn:hover {
    color: var(--primary);
}

.tab-btn.active {
    color: var(--primary);
    border-color: var(--primary);
}

.tab-pane {
    display: none;
}

.tab-pane.active {
    display: block;
}

/* Admin sub tab panels */
.admin-tab-pane {
    display: none;
}

.admin-tab-pane.active {
    display: block;
}

/* Official Footer style */
.official-footer {
    border-top: 1px solid var(--border-color);
    padding: 20px 0;
    margin-top: 40px;
    text-align: center;
    font-size: 12px;
    color: var(--text-muted);
    line-height: 1.8;
}

.official-footer p {
    max-width: 800px;
    margin: 0 auto;
}

/* Custom Scrollbar for modern look */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary);
}

/* Header Auth Controls style */
#header-auth-controls {
    margin-right: 10px;
}
#header-user-widget {
    background-color: rgba(21, 128, 61, 0.05);
    border: 1px solid var(--border-color);
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    gap: 10px;
}
.dark-theme #header-user-widget {
    background-color: rgba(255, 255, 255, 0.05);
}

/* Calendar Styles */
.calendar-days-grid {
    border-top: 1px solid var(--border-color);
    border-left: 1px solid var(--border-color);
}

.calendar-day-box {
    background: var(--bg-card);
    border-right: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    padding: 8px;
    display: flex;
    flex-direction: column;
    position: relative;
    min-height: 120px;
    transition: background-color var(--transition-fast);
}

.calendar-day-box:hover {
    background-color: rgba(21, 128, 61, 0.03);
}

.calendar-day-box.other-month {
    background-color: rgba(0, 0, 0, 0.015);
}
.dark-theme .calendar-day-box.other-month {
    background-color: rgba(255, 255, 255, 0.015);
}

.calendar-day-box.other-month .calendar-day-number {
    color: var(--text-muted);
    opacity: 0.5;
}

.calendar-day-number {
    font-size: 13px;
    font-weight: 700;
    color: var(--text-main);
    align-self: flex-end;
    margin-bottom: 6px;
}

.calendar-day-box.today {
    background-color: rgba(21, 128, 61, 0.06);
}

.calendar-day-box.today .calendar-day-number {
    color: white;
    background-color: var(--primary);
    width: 22px;
    height: 22px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: -4px;
    margin-top: -4px;
    font-size: 11px;
}

.calendar-booking-list {
    display: flex;
    flex-direction: column;
    gap: 4px;
    flex-grow: 1;
    overflow-y: auto;
    max-height: 90px;
}

.calendar-booking-item {
    font-size: 11px;
    padding: 3px 6px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-weight: 500;
    text-overflow: ellipsis;
    white-space: nowrap;
    overflow: hidden;
    line-height: 1.3;
    transition: transform var(--transition-fast), filter var(--transition-fast);
    border-left: 3px solid transparent;
}

.calendar-booking-item:hover {
    transform: translateX(2px);
    filter: brightness(0.95);
}

.calendar-booking-item.pending {
    background-color: rgba(245, 158, 11, 0.12);
    color: #b45309;
    border-left-color: var(--color-pending);
}

.calendar-booking-item.approved {
    background-color: rgba(22, 163, 74, 0.12);
    color: #15803d;
    border-left-color: var(--color-approved);
}

.calendar-booking-item.completed {
    background-color: rgba(59, 130, 246, 0.12);
    color: #1d4ed8;
    border-left-color: var(--color-completed);
}

.calendar-booking-item.rejected {
    background-color: rgba(239, 68, 68, 0.12);
    color: #b91c1c;
    border-left-color: var(--color-rejected);
}

/* Quick Add button hidden by default, visible on day box hover */
.calendar-day-add-btn {
    position: absolute;
    left: 8px;
    top: 8px;
    font-size: 10px;
    background: var(--primary);
    border: none;
    border-radius: 4px;
    width: 18px;
    height: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    transition: opacity var(--transition-fast);
    color: white;
}

.calendar-day-box:hover .calendar-day-add-btn {
    opacity: 1;
}

.calendar-day-add-btn:hover {
    background: #15803d;
}

/* --- Multi-Column Footer Styling --- */
.main-footer {
    background-color: var(--bg-card);
    border-top: 1px solid var(--border-color);
    padding: 40px 0 0 0;
    margin-top: 50px;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    box-shadow: var(--shadow-glass);
    transition: background-color var(--transition-normal), border-color var(--transition-normal);
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 25px 30px 25px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
}

.footer-column {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.footer-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-main);
    position: relative;
    padding-left: 15px;
    margin-bottom: 10px;
}

.footer-title::before {
    content: '';
    position: absolute;
    left: 0;
    top: 3px;
    bottom: 3px;
    width: 4px;
    background-color: var(--primary);
    border-radius: 2px;
}

.footer-text {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.6;
    text-align: justify;
}

.footer-slogan {
    font-size: 13px;
    padding-left: 12px;
    border-left: 3px solid var(--primary);
    color: var(--text-main);
}

.footer-socials {
    display: flex;
    gap: 10px;
    margin-top: 5px;
}

.social-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    color: #ffffff;
    font-size: 16px;
    transition: transform 0.2s ease, opacity 0.2s ease;
}

.social-icon:hover {
    transform: scale(1.1);
    opacity: 0.9;
}

.social-icon.fb { background-color: #1877f2; }
.social-icon.mail { background-color: #ea4335; }
.social-icon.phone { background-color: #34a853; }
.social-icon.web { background-color: #4f46e5; }

.contact-item {
    display: flex;
    gap: 12px;
    align-items: flex-start;
    font-size: 13px;
    color: var(--text-muted);
}

.contact-icon {
    color: var(--primary);
    font-size: 14px;
    margin-top: 3px;
}

.contact-label {
    font-weight: 600;
    color: var(--text-main);
}

.contact-link {
    color: var(--text-muted);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: color var(--transition-fast), border-color var(--transition-fast);
}

.contact-link:hover {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

.footer-bottom {
    background-color: var(--secondary);
    color: rgba(255, 255, 255, 0.7);
    text-align: center;
    padding: 20px;
    font-size: 13px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.dark-theme .footer-bottom {
    background-color: #011307;
    color: var(--text-muted);
}