/* D:\Project php\Activity\style.css */
@import url('https://fonts.googleapis.com/css2?family=Sarabun:wght@300;400;500;600;700;800&display=swap');

:root {
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --primary-light: #eff6ff;
    --secondary: #475569;
    --success: #16a34a;
    --danger: #dc2626;
    --warning: #ca8a04;
    --background: #f8fafc;
    --card-bg: #ffffff;
    --text-main: #0f172a;
    --text-muted: #64748b;
    --border: #e2e8f0;
    --radius: 12px;
    --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Sarabun', sans-serif;
}

body {
    background-color: var(--background);
    color: var(--text-main);
    display: flex;
    min-height: 100vh;
    overflow-x: hidden;
}

/* Sidebar Styling */
.sidebar {
    width: 260px;
    background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
    color: #ffffff;
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100vh;
    left: 0;
    top: 0;
    z-index: 100;
    box-shadow: 4px 0 10px rgba(0,0,0,0.15);
    transition: all 0.3s ease;
}

.sidebar-brand {
    padding: 24px 20px;
    font-size: 18px;
    font-weight: 800;
    border-bottom: 1px solid rgba(255,255,255,0.08);
    display: flex;
    align-items: center;
    gap: 10px;
    color: #3b82f6;
}

.sidebar-brand i {
    font-size: 22px;
}

.sidebar-menu {
    list-style: none;
    padding: 20px 10px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    flex-grow: 1;
}

.sidebar-menu li a {
    color: #cbd5e1;
    text-decoration: none;
    padding: 12px 15px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 500;
    font-size: 15px;
    transition: all 0.2s ease;
}

.sidebar-menu li a:hover,
.sidebar-menu li.active a {
    background-color: rgba(255,255,255,0.08);
    color: #ffffff;
}

.sidebar-menu li.active a {
    background-color: var(--primary);
    color: #ffffff;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.sidebar-user {
    padding: 20px;
    border-top: 1px solid rgba(255,255,255,0.08);
    background-color: rgba(0,0,0,0.2);
}

.sidebar-user-name {
    font-weight: 600;
    font-size: 14px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.sidebar-user-role {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 2px;
    display: flex;
    align-items: center;
    gap: 5px;
}

/* Main Content Area */
.main-content {
    margin-left: 260px;
    flex-grow: 1;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    padding: 30px;
}

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
}

.page-title h1 {
    font-size: 24px;
    font-weight: 800;
    color: var(--text-main);
}

.page-title p {
    font-size: 14px;
    color: var(--text-muted);
    margin-top: 4px;
}

/* Dashboard Metrics Grid */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.metric-card {
    background-color: var(--card-bg);
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    justify-content: space-between;
    border: 1px solid var(--border);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

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

.metric-info h3 {
    font-size: 14px;
    color: var(--text-muted);
    font-weight: 500;
}

.metric-info .value {
    font-size: 24px;
    font-weight: 800;
    color: var(--text-main);
    margin-top: 8px;
}

.metric-icon {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
}

.metric-icon.blue { background-color: #eff6ff; color: #2563eb; }
.metric-icon.green { background-color: #f0fdf4; color: #16a34a; }
.metric-icon.orange { background-color: #fff7ed; color: #ea580c; }
.metric-icon.red { background-color: #fef2f2; color: #dc2626; }

/* General Card Layouts */
.card {
    background-color: var(--card-bg);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
    margin-bottom: 30px;
    overflow: hidden;
}

.card-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 8px;
}

.card-body {
    padding: 24px;
}

/* Forms UI */
.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    margin-bottom: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group.full-width {
    grid-column: 1 / -1;
}

label {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-main);
}

input[type="text"],
input[type="number"],
input[type="date"],
input[type="password"],
select,
textarea {
    width: 100%;
    padding: 10px 14px;
    border-radius: 8px;
    border: 1px solid var(--border);
    background-color: #ffffff;
    font-size: 15px;
    color: var(--text-main);
    outline: none;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

input:focus,
select:focus,
textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}

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

/* Buttons UI */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: all 0.2s ease;
    text-decoration: none;
}

.btn-primary {
    background-color: var(--primary);
    color: #ffffff;
}

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

.btn-secondary {
    background-color: var(--secondary);
    color: #ffffff;
}

.btn-secondary:hover {
    background-color: #334155;
}

.btn-danger {
    background-color: var(--danger);
    color: #ffffff;
}

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

.btn-success {
    background-color: var(--success);
    color: #ffffff;
}

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

.btn-warning {
    background-color: var(--warning);
    color: #ffffff;
}

.btn-warning:hover {
    background-color: #a16207;
}

.btn-group {
    display: flex;
    gap: 10px;
    margin-top: 20px;
}

/* Tables UI */
.table-responsive {
    width: 100%;
    overflow-x: auto;
}

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

table.table th,
table.table td {
    padding: 14px 18px;
    border-bottom: 1px solid var(--border);
    font-size: 15px;
}

table.table th {
    background-color: var(--primary-light);
    color: var(--primary);
    font-weight: 700;
}

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

/* Tabs Styling */
.tabs {
    display: flex;
    border-bottom: 2px solid var(--border);
    margin-bottom: 25px;
    gap: 20px;
}

.tab-btn {
    padding: 12px 5px;
    font-size: 15px;
    font-weight: 600;
    color: var(--text-muted);
    cursor: pointer;
    background: none;
    border: none;
    position: relative;
    transition: color 0.2s ease;
}

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

.tab-btn.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 2px;
    background-color: var(--primary);
}

.tab-content {
    display: none;
}

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

/* Progress bar */
.progress-bar-container {
    width: 100%;
    background-color: #f1f5f9;
    border-radius: 9999px;
    height: 8px;
    overflow: hidden;
    margin-top: 6px;
}

.progress-bar {
    height: 100%;
    border-radius: 9999px;
    background-color: var(--primary);
    transition: width 0.3s ease;
}

.badge {
    display: inline-block;
    padding: 4px 8px;
    border-radius: 9999px;
    font-size: 12px;
    font-weight: 700;
    text-align: center;
}

.badge-pending { background-color: #fef3c7; color: #d97706; }
.badge-ongoing { background-color: #eff6ff; color: #2563eb; }
.badge-completed { background-color: #dcfce7; color: #16a34a; }

/* Login Page Styling */
.login-body {
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    min-height: 100vh;
    width: 100vw;
}

.login-card {
    background-color: #ffffff;
    border-radius: 16px;
    width: 100%;
    max-width: 420px;
    padding: 40px;
    box-shadow: 0 20px 25px -5px rgba(0,0,0,0.3), 0 10px 10px -5px rgba(0,0,0,0.3);
}

.login-header {
    text-align: center;
    margin-bottom: 30px;
}

.login-header i {
    font-size: 40px;
    color: var(--primary);
    margin-bottom: 12px;
}

.login-header h2 {
    font-size: 22px;
    font-weight: 800;
    color: var(--text-main);
}

.login-header p {
    font-size: 13px;
    color: var(--text-muted);
    margin-top: 5px;
}