/**
 * ระบบงานออกแบบสไตล์ Flat Minimal Light Theme
 * คณะวิทยาศาสตร์การแพทย์ มหาวิทยาลัยพะเยา
 */

@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&family=Sarabun:wght@200;300;400;500;600;700;800&display=swap');
@import url('https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/css/all.min.css');

:root {
    /* Color Tokens (Flat Minimal Light Palette) */
    --space-bg: #f8fafc;            /* Slate 50 (Off-white background) */
    --panel-bg: #ffffff;            /* Solid White Card */
    --panel-border: #e2e8f0;        /* Slate 200 (Subtle gray border) */
    --panel-border-hover: #cbd5e1;  /* Slate 300 (Hover border) */
    
    --primary-gradient: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%); /* Indigo to Violet */
    --secondary-gradient: linear-gradient(135deg, #0284c7 0%, #0d9488 100%); /* Sky to Teal */
    
    --primary-color: #4f46e5;       /* Indigo */
    --primary-hover: #3730a3;       /* Dark Indigo */
    --primary-light: rgba(79, 70, 229, 0.05); /* Soft purple tint */
    
    --secondary-color: #0284c7;     /* Sky Blue */
    --secondary-hover: #0369a1;
    --accent-color: #ec4899;        /* Rose/Pink */
    
    --text-main: #1e293b;           /* Slate 800 (Dark Charcoal text) */
    --text-muted: #64748b;          /* Slate 500 (Muted gray text) */
    --border-color: #e2e8f0;        /* Slate 200 (Standard border) */
    
    /* Flat Soft Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -2px rgba(0, 0, 0, 0.04);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
    --glow-panel: 0 4px 20px -2px rgba(0, 0, 0, 0.05);

    /* Status Colors (Soft Pastel Theme) */
    --success-color: #059669;       /* Emerald */
    --success-light: #ecfdf5;       /* Emerald 50 */
    --success-border: #a7f3d0;      /* Emerald 200 */
    
    --warning-color: #d97706;       /* Amber */
    --warning-light: #fffbeb;       /* Amber 50 */
    --warning-border: #fde68a;      /* Amber 200 */
    
    --danger-color: #dc2626;        /* Red */
    --danger-light: #fff5f5;        /* Red 50 */
    --danger-border: #fecaca;       /* Red 200 */
    
    --cancelled-color: #475569;     /* Slate 600 */
    --cancelled-light: #f8fafc;     /* Slate 50 */
    --cancelled-border: #e2e8f0;    /* Slate 200 */
    
    --info-color: #2563eb;          /* Blue */
    --info-light: #eff6ff;          /* Blue 50 */
    --info-border: #bfdbfe;         /* Blue 200 */

    /* Design Tokens */
    --font-main: 'Outfit', 'Sarabun', sans-serif;
    --transition-smooth: all 0.2s ease-in-out;
    --border-radius-sm: 6px;
    --border-radius-md: 10px;
    --border-radius-lg: 14px;
}

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

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

::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
::-webkit-scrollbar-track {
    background: #f1f5f9;
}
::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: #94a3b8;
}

/* App Layout Grid Container */
.app-container {
    max-width: 1440px;
    margin: 0 auto;
    padding: 24px;
}

/* Premium Light Navbar */
.app-header {
    background: #ffffff;
    border: 1px solid var(--panel-border);
    padding: 14px 24px;
    border-radius: var(--border-radius-lg);
    margin-bottom: 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 15px;
    z-index: 100;
}

.logo-section {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-badge {
    background: var(--primary-gradient);
    color: white;
    font-weight: 800;
    width: 44px;
    height: 44px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.95rem;
    box-shadow: 0 2px 10px rgba(79, 70, 229, 0.2);
    letter-spacing: 0.5px;
}

.logo-title h1 {
    font-size: 1.1rem;
    font-weight: 700;
    margin: 0;
    color: #0f172a;
}

.logo-title p {
    font-size: 0.75rem;
    color: var(--text-muted);
    letter-spacing: 0.2px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 4px;
}

.nav-item {
    color: #475569;
    text-decoration: none;
    padding: 8px 14px;
    border-radius: var(--border-radius-sm);
    font-weight: 600;
    font-size: 0.88rem;
    transition: var(--transition-smooth);
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-item:hover {
    color: #0f172a;
    background-color: #f1f5f9;
}

.nav-item.active {
    color: white;
    background: var(--primary-gradient);
    box-shadow: var(--shadow-sm);
}

/* User profile */
.user-profile {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-left: 10px;
    padding-left: 15px;
    border-left: 1px solid #e2e8f0;
}

.user-info {
    text-align: right;
}

.user-name {
    font-weight: 600;
    font-size: 0.88rem;
    display: block;
    color: #0f172a;
}

.user-role {
    font-size: 0.7rem;
    color: var(--primary-color);
    background-color: var(--primary-light);
    border: 1px solid rgba(79, 70, 229, 0.12);
    padding: 1px 8px;
    border-radius: 12px;
    display: inline-block;
    font-weight: 700;
    text-transform: uppercase;
}

.btn-logout {
    color: #dc2626 !important;
}
.btn-logout:hover {
    background-color: #fef2f2 !important;
}

/* Layout systems */
.main-layout {
    display: grid;
    grid-template-columns: 320px 1fr;
    gap: 24px;
    align-items: start;
}

.sidebar-panel {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

@media (max-width: 992px) {
    .app-container {
        width: 100% !important;
        max-width: 100vw !important;
        overflow-x: hidden !important;
        padding: 12px !important;
    }

    .main-layout {
        grid-template-columns: 1fr;
    }
}

/* Flat Cards */
.card {
    background: var(--panel-bg);
    border: 1px solid var(--panel-border);
    border-radius: var(--border-radius-lg);
    padding: 24px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-smooth);
}

.card:hover {
    border-color: var(--panel-border-hover);
    box-shadow: var(--shadow-md);
}

.card-title {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 16px;
    color: #0f172a;
    border-bottom: 1px solid #e2e8f0;
    padding-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 8px;
}

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

/* Sidebar lists */
.room-status-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.room-status-item {
    padding: 12px;
    border-radius: var(--border-radius-md);
    background-color: #f8fafc;
    border: 1px solid #e2e8f0;
    transition: var(--transition-smooth);
}

.room-status-item:hover {
    background-color: #f1f5f9;
    border-color: #cbd5e1;
}

.room-status-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    font-size: 0.88rem;
    color: #0f172a;
}

.room-status-badge {
    font-size: 0.7rem;
    padding: 2px 8px;
    border-radius: 4px;
    font-weight: 700;
    text-transform: uppercase;
}

.room-status-badge.available { background-color: var(--success-light); color: var(--success-color); border: 1px solid var(--success-border); }
.room-status-badge.occupied { background-color: var(--danger-light); color: var(--danger-color); border: 1px solid var(--danger-border); }
.room-status-badge.maintenance { background-color: var(--warning-light); color: var(--warning-color); border: 1px solid var(--warning-border); }
.room-status-badge.inactive { background-color: var(--cancelled-light); color: var(--cancelled-color); border: 1px solid var(--cancelled-border); }

.room-status-detail {
    font-size: 0.78rem;
    color: var(--text-muted);
    margin-top: 4px;
    line-height: 1.4;
}

/* Flat UI Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 9px 18px;
    border-radius: var(--border-radius-md);
    font-weight: 600;
    font-size: 0.88rem;
    cursor: pointer;
    border: none;
    text-decoration: none;
    transition: var(--transition-smooth);
    font-family: inherit;
    box-shadow: var(--shadow-sm);
}

.btn-primary {
    background: var(--primary-color);
    color: white;
}
.btn-primary:hover {
    background: var(--primary-hover);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: var(--secondary-color);
    color: white;
}
.btn-secondary:hover {
    background: var(--secondary-hover);
    box-shadow: var(--shadow-md);
}

.btn-danger {
    background-color: var(--danger-color);
    color: white;
}
.btn-danger:hover {
    background-color: #b91c1c;
    box-shadow: var(--shadow-md);
}

.btn-success {
    background-color: var(--success-color);
    color: white;
}
.btn-success:hover {
    background-color: #047857;
    box-shadow: var(--shadow-md);
}

.btn-light {
    background-color: #ffffff;
    color: #334155;
    border: 1px solid #cbd5e1;
}
.btn-light:hover {
    background-color: #f1f5f9;
    border-color: #94a3b8;
}

.btn-block {
    display: flex;
    width: 100%;
}

/* Minimal Forms */
.form-group {
    margin-bottom: 16px;
}

.form-label {
    display: block;
    font-weight: 600;
    font-size: 0.88rem;
    margin-bottom: 6px;
    color: #334155;
}

.form-label.required::after {
    content: " *";
    color: var(--accent-color);
}

.form-control {
    width: 100%;
    padding: 10px 14px;
    border-radius: var(--border-radius-sm);
    border: 1px solid #cbd5e1;
    font-family: inherit;
    font-size: 0.92rem;
    color: #0f172a;
    background-color: #ffffff;
    transition: var(--transition-smooth);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.15);
}

.form-text {
    display: block;
    font-size: 0.78rem;
    color: var(--text-muted);
    margin-top: 4px;
}

/* select stylings */
select.form-control {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%23475569'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    background-size: 14px;
    padding-right: 36px;
}

select.form-control option {
    background-color: #ffffff;
    color: #0f172a;
}

/* Pastel Badges */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 3px 8px;
    border-radius: 4px;
}

.badge-warning { background-color: var(--warning-light); color: var(--warning-color); border: 1px solid var(--warning-border); }
.badge-success { background-color: var(--success-light); color: var(--success-color); border: 1px solid var(--success-border); }
.badge-danger { background-color: var(--danger-light); color: var(--danger-color); border: 1px solid var(--danger-border); }
.badge-secondary { background-color: var(--cancelled-light); color: var(--cancelled-color); border: 1px solid var(--cancelled-border); }
.badge-info { background-color: var(--info-light); color: var(--info-color); border: 1px solid var(--info-border); }

/* Pastel Alerts */
.alert {
    padding: 12px 18px;
    border-radius: var(--border-radius-md);
    margin-bottom: 20px;
    font-size: 0.88rem;
    border: 1px solid rgba(0, 0, 0, 0.05);
    border-left: 4px solid var(--border-color);
}

.alert-success { background-color: var(--success-light); color: #047857; border-color: var(--success-border); border-left-color: var(--success-color); }
.alert-warning { background-color: var(--warning-light); color: #b45309; border-color: var(--warning-border); border-left-color: var(--warning-color); }
.alert-danger { background-color: var(--danger-light); color: #b91c1c; border-color: var(--danger-border); border-left-color: var(--danger-color); }
.alert-info { background-color: var(--info-light); color: #1d4ed8; border-color: var(--info-border); border-left-color: var(--info-color); }

/* Minimal Tables */
.table-responsive {
    border-radius: var(--border-radius-md);
    overflow: hidden;
    border: 1px solid #e2e8f0;
}

.table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 0;
    font-size: 0.88rem;
    background-color: #ffffff;
}

.table th, .table td {
    padding: 12px 16px;
    border-bottom: 1px solid #e2e8f0;
    text-align: left;
    color: #334155;
}

.table th {
    background-color: #f8fafc;
    color: #475569;
    font-weight: 700;
    text-transform: uppercase;
    font-size: 0.78rem;
    letter-spacing: 0.5px;
}

.table tr:last-child td {
    border-bottom: none;
}

.table tr:hover td {
    background-color: #f8fafc;
}

/* Modals */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(15, 23, 42, 0.3);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    transition: var(--transition-smooth);
}

.modal-overlay.active {
    display: flex;
    opacity: 1;
}

.modal-content {
    background-color: #ffffff;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg), 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    border: 1px solid #e2e8f0;
    width: 95%;
    max-width: 500px;
    padding: 24px;
    position: relative;
    transform: scale(0.95);
    transition: var(--transition-smooth);
}

.modal-overlay.active .modal-content {
    transform: scale(1);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid #e2e8f0;
    padding-bottom: 12px;
    margin-bottom: 16px;
}

.modal-title {
    font-size: 1.05rem;
    font-weight: 700;
    color: #0f172a;
    display: flex;
    align-items: center;
    gap: 8px;
}

.modal-close {
    font-size: 1.35rem;
    cursor: pointer;
    color: var(--text-muted);
    transition: var(--transition-smooth);
    background: none;
    border: none;
    line-height: 1;
}

.modal-close:hover {
    color: #ef4444;
}

.popup-details-grid {
    display: grid;
    grid-template-columns: 100px 1fr;
    gap: 12px 10px;
    font-size: 0.88rem;
    margin-bottom: 20px;
}

.popup-label {
    font-weight: 700;
    color: var(--text-muted);
}

.popup-value {
    color: #334155;
}

/* FullCalendar Custom Light Theme Styles */
#calendar {
    background-color: #ffffff !important;
    border: 1px solid #e2e8f0 !important;
    padding: 20px;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    color: #1e293b;
}

.fc-theme-standard td, .fc-theme-standard th {
    border-color: #e2e8f0 !important;
}

.fc-theme-standard .fc-scrollgrid {
    border-color: #e2e8f0 !important;
}

.fc-col-header-cell-cushion {
    color: #475569 !important;
    font-weight: 700 !important;
    padding: 8px 0 !important;
    font-size: 0.85rem !important;
    text-decoration: none !important;
}

.fc-daygrid-day-number {
    color: #475569 !important;
    font-weight: 600 !important;
    font-size: 0.85rem !important;
    padding: 6px 8px !important;
    text-decoration: none !important;
}

.fc-daygrid-day:hover {
    background-color: #f8fafc;
}

.fc-day-today {
    background-color: rgba(79, 70, 229, 0.04) !important;
}

.fc-daygrid-day.fc-day-today .fc-daygrid-day-number {
    color: var(--primary-color) !important;
    font-weight: 800 !important;
    background-color: rgba(79, 70, 229, 0.1);
    border-radius: 4px;
}

/* FullCalendar Header & Button Overrides */
.fc-toolbar-title {
    font-size: 1.15rem !important;
    font-weight: 700 !important;
    color: #0f172a !important;
}

.fc-button-primary {
    background-color: #ffffff !important;
    border: 1px solid #cbd5e1 !important;
    color: #334155 !important;
    font-weight: 600 !important;
    font-size: 0.82rem !important;
    text-transform: capitalize !important;
    border-radius: 6px !important;
    padding: 6px 12px !important;
    transition: var(--transition-smooth) !important;
}

.fc-button-primary:hover {
    background-color: #f1f5f9 !important;
    border-color: #94a3b8 !important;
    color: #0f172a !important;
}

.fc-button-active {
    background: #4f46e5 !important;
    border-color: #4f46e5 !important;
    color: white !important;
    box-shadow: var(--shadow-sm) !important;
}

.fc-event {
    border-radius: 4px !important;
    padding: 3px 6px !important;
    font-weight: 600 !important;
    font-size: 0.78rem !important;
    border: 1px solid transparent !important;
    box-shadow: none !important;
    transition: var(--transition-smooth) !important;
}

.fc-event:hover {
    transform: scale(1.01);
    filter: brightness(0.95);
}

.fc-timegrid-slot {
    height: 38px !important;
    border-bottom: 1px solid #f1f5f9 !important;
}

.fc-timegrid-slot-label-cushion {
    color: var(--text-muted) !important;
    font-size: 0.75rem !important;
}

/* Event color customizations matching rooms - Vibrant & High Contrast */
.room-event-1 {
    background-color: #eab308 !important; /* Gold / Yellow */
    color: #1e293b !important;            /* Dark Slate for contrast */
    border: 1px solid #ca8a04 !important;
}
.room-event-2 {
    background-color: #0d9488 !important; /* Teal */
    color: #ffffff !important;
    border: 1px solid #0f766e !important;
}
.room-event-3 {
    background-color: #7c3aed !important; /* Purple */
    color: #ffffff !important;
    border: 1px solid #6d28d9 !important;
}
.room-event-pending {
    background-color: #94a3b8 !important; /* Slate Gray */
    color: #ffffff !important;
    border: 1px solid #64748b !important;
}

/* Minimalist Login Page */
.login-body {
    background-color: #f1f5f9;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 20px;
}

.login-card {
    background: #ffffff;
    width: 100%;
    max-width: 420px;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    padding: 35px;
    border: 1px solid #e2e8f0;
}

.login-logo {
    text-align: center;
    margin-bottom: 25px;
}

.login-logo-badge {
    background: var(--primary-gradient);
    color: white;
    font-weight: 800;
    width: 56px;
    height: 56px;
    border-radius: 12px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.35rem;
    box-shadow: 0 4px 12px rgba(79, 70, 229, 0.25);
    margin-bottom: 12px;
}

.login-logo h2 {
    color: #0f172a;
    font-size: 1.25rem;
    font-weight: 800;
    margin-bottom: 4px;
}

.login-logo p {
    color: var(--text-muted);
    font-size: 0.8rem;
    letter-spacing: 0.2px;
}

.login-divider {
    display: flex;
    align-items: center;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.78rem;
    margin: 20px 0;
    font-weight: bold;
    text-transform: uppercase;
}

.login-divider::before, .login-divider::after {
    content: '';
    flex: 1;
    border-bottom: 1px solid #e2e8f0;
}

.login-divider:not(:empty)::before { margin-right: 1em; }
.login-divider:not(:empty)::after { margin-left: 1em; }

/* Responsive Tables for Mobile Devices */
@media (max-width: 768px) {
    .card {
        padding: 14px 0 !important;
        background: transparent !important;
        border: none !important;
        box-shadow: none !important;
    }
    
    .card-title {
        padding: 0 10px 10px 10px !important;
        font-size: 0.95rem !important;
    }

    .table-responsive {
        border: none;
        width: 100% !important;
        max-width: 100% !important;
        overflow-x: hidden !important;
    }
    
    .table thead {
        display: none;
    }
    
    .table, 
    .table tbody, 
    .table tr, 
    .table td {
        display: block;
        width: 100%;
    }
    
    .table tr {
        background: #ffffff;
        border: 1px solid #e2e8f0;
        border-radius: var(--border-radius-lg);
        padding: 14px;
        margin-bottom: 16px;
        box-shadow: var(--shadow-sm);
    }
    
    .table td {
        text-align: right;
        padding: 10px 0;
        border-bottom: 1px solid #f1f5f9;
        display: flex;
        justify-content: space-between;
        align-items: center;
        font-size: 0.9rem;
    }
    
    .table td:last-child {
        border-bottom: none;
        padding-top: 14px;
        justify-content: center;
    }
    
    .table td::before {
        content: attr(data-label);
        font-weight: 700;
        text-align: left;
        color: #64748b;
        font-size: 0.8rem;
        text-transform: uppercase;
        letter-spacing: 0.5px;
        margin-right: 15px;
    }
    
    /* Center text inside buttons on mobile table rows */
    .table td .btn,
    .table td a.btn {
        justify-content: center;
    }
}

/* Responsive Header and Layout Styles for Mobile Devices */
@media (max-width: 992px) {
    .app-header {
        flex-direction: column;
        align-items: center;
        padding: 12px 16px;
        gap: 12px;
        position: static; /* ปิด sticky บนมือถือเพื่อให้เลื่อนขึ้น-ลงได้อิสระ ไม่บดบังเนื้อหา */
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        overflow: hidden !important;
    }
    
    .logo-section {
        flex-direction: row;
        align-items: center;
        text-align: left;
        gap: 10px;
    }
    
    .logo-section img {
        height: 38px !important;
    }
    
    .logo-title h1 {
        font-size: 0.95rem;
    }
    
    .logo-title p {
        font-size: 0.7rem;
    }
    
    .nav-links {
        flex-wrap: wrap;
        justify-content: center;
        width: 100%;
        gap: 6px;
        padding: 8px 0;
    }
    
    .nav-item {
        font-size: 0.8rem;
        padding: 6px 10px;
        gap: 6px;
    }
    
    .user-profile {
        margin-left: 0;
        padding-left: 0;
        border-left: none;
        width: 100%;
        justify-content: center;
        margin-top: 6px;
        border-top: 1px solid #f1f5f9;
        padding-top: 10px;
    }
}

@media (max-width: 576px) {
    .app-container {
        padding: 10px;
    }
    .app-header {
        margin-bottom: 12px;
        padding: 12px 8px;
    }
    .logo-section {
        gap: 8px;
    }
    .logo-title h1 {
        font-size: 0.88rem;
    }
}

/* SweetAlert2 Popup Background Correction (Force solid white on mobile) */
.swal2-popup {
    background: #ffffff !important;
    box-shadow: var(--shadow-lg) !important;
    border: 1px solid var(--panel-border) !important;
    border-radius: var(--border-radius-lg) !important;
}