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

:root {
    --primary-color: #0056b3; /* Deep Blue for NU Assessor */
    --secondary-color: #6c757d;
    --success-color: #28a745;
    --info-color: #17a2b8;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    --light-color: #f8f9fa;
    --dark-color: #212529;
    --sidebar-bg: #2c3e50;
    --navbar-bg: #ffffff;
    --card-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    --border-radius: 10px;
}

body {
    font-family: 'Sarabun', sans-serif;
    background-color: #f4f7f6;
    color: #444;
}

/* Login Page Styling */
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    /*background: linear-gradient(135deg, #0056b3 0%, #17a2b8 100%);*/
	background: linear-gradient(135deg, #80abda 0%, #8bd1dc 100%);
    padding: 15px;
}

.login-card {
    background: white;
    padding: 2.5rem;
    border-radius: var(--border-radius);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 450px;
}

.login-card h1 {
    font-weight: 700;
    color: var(--sidebar-bg);
    margin-bottom: 0.5rem;
}

.login-card p {
    color: var(--secondary-color);
    margin-bottom: 2rem;
}

.login-card .form-group label {
    font-weight: 500;
    font-size: 0.9rem;
}

.login-card .form-control {
    border-radius: 5px;
    padding: 0.75rem 1rem;
    border: 1px solid #dee2e6;
}

.login-card .btn-primary {
    background-color: var(--primary-color);
    border: none;
    padding: 0.75rem;
    font-weight: 600;
    border-radius: 5px;
    transition: all 0.3s ease;
}

.login-card .btn-primary:hover {
    background-color: #004494;
    transform: translateY(-2px);
}

/* Dashboard Styling */
.navbar {
    background-color: var(--navbar-bg) !important;
    box-shadow: 0 2px 4px rgba(0,0,0,.08);
    height: 60px;
}

.navbar-brand1 {
    background-color: transparent !important;
    color: var(--sidebar-bg) !important;
    font-size: 1.5rem !important;
    box-shadow: none !important;
    font-weight: 700;
}

.sidebar {
    background-color: var(--sidebar-bg) !important;
    padding-top: 60px !important;
    border-right: none;
}

.sidebar .nav-link {
    color: rgba(255,255,255,.7) !important;
    padding: 0.8rem 1.5rem;
    font-weight: 400;
    transition: all 0.2s;
    border-left: 3px solid transparent;
}

.sidebar .nav-link:hover {
    color: #fff !important;
    background-color: rgba(255,255,255,.05);
}

.sidebar .nav-link.active {
    color: #fff !important;
    background-color: rgba(255,255,255,.1);
    border-left: 3px solid var(--info-color);
}

.sidebar-sticky h6 {
    color: rgba(255,255,255,.4);
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 1px;
    margin-top: 1.5rem;
    padding: 0 1.5rem;
}

main {
    padding-top: 30px;
}

/* Cards & Content */
.card {
    border: none;
    border-radius: var(--border-radius);
    box-shadow: var(--card-shadow);
    margin-bottom: 1.5rem;
}

.card-header {
    background-color: #fff;
    border-bottom: 1px solid #f1f1f1;
    font-weight: 700;
    padding: 1.25rem;
}

.card-body {
    padding: 1.25rem;
}

/* Buttons */
.btn {
    border-radius: 5px;
    font-weight: 500;
}

/* Embed Responsive Fix */
.embed-responsive-16by9 {
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--card-shadow);
}

/* Mobile adjustments */
@media (max-width: 767.98px) {
    .navbar-brand1 {
        width: 100%;
        text-align: center;
        padding-left: 0 !important;
    }
    .sidebar {
        padding-top: 100px !important;
    }
}