/* ======================================================= */
/* == STYLE UTAMA - SPK GURU TERBAIK (TEMA HIJAU MODERN)  == */
/* ======================================================= */

:root {
    --primary-color: #2E7D32; /* Hijau tua yang teduh dan profesional */
    --primary-color-light: #E8F5E9; /* Hijau yang sangat lembut untuk hover */
    --accent-color: #FFC107; /* Kuning untuk tombol edit/perhatian */
    --danger-color: #D32F2F;
    --background-color: #F8F9FA; /* Latar belakang abu-abu sangat terang */
    --content-bg: #FFFFFF;
    --sidebar-bg: #FFFFFF;
    --text-color: #212529;
    --text-color-light: #6c757d;
    --border-color: #E9ECEF;
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.05);
    --shadow-md: 0 5px 15px rgba(0,0,0,0.08);
}

/* --- Reset & Body --- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Poppins', sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    font-size: 16px;
}

/* ============================================= */
/* ==         STYLE UNTUK HALAMAN LOGIN         == */
/* ============================================= */

.login-container {
    display: flex;
    min-height: 100vh;
    width: 100%;
}

.login-form-section {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 40px;
}

.login-visual-section {
    flex: 1;
    background: linear-gradient(to top right, rgba(46, 125, 50, 0.8), rgba(27, 94, 32, 0.9)), url('https://images.unsplash.com/photo-1580582932707-520aed93a94d?q=80&w=1932&auto=format&fit=crop');
    background-size: cover;
    background-position: center;
    color: white;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 60px;
}

.visual-content h3 {
    font-size: 2.5rem;
    font-weight: 600;
    margin-bottom: 15px;
    text-shadow: 1px 1px 3px rgba(0,0,0,0.2);
}

.visual-content p {
    font-size: 1.1rem;
    opacity: 0.9;
    max-width: 450px;
}

.login-form-wrapper {
    width: 100%;
    max-width: 400px;
}

.login-header h2 {
    font-size: 2.2rem;
    font-weight: 600;
    color: var(--text-color);
}

.login-header p {
    color: var(--text-color-light);
    font-size: 1rem;
    margin-top: 8px;
}

.btn-login {
    width: 100%;
    padding: 14px;
    background-color: var(--primary-color);
    border: none;
    border-radius: 8px;
    color: #ffffff;
    font-size: 1.1rem;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.3s, transform 0.2s;
}

.btn-login:hover {
    background-color: var(--primary-color-dark);
    transform: translateY(-2px);
}

/* ============================================= */
/* ==        STYLE UNTUK DASHBOARD & KONTEN     == */
/* ============================================= */

.page-wrapper {
    display: flex;
    width: 100%;
    min-height: 100vh;
}
.main-panel {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}
.main-content {
    padding: 30px;
    flex-grow: 1;
    overflow-y: auto;
}

/* --- Header Modern --- */
.main-header {
    background-color: var(--content-bg);
    padding: 0 30px;
    height: 70px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    flex-shrink: 0;
}
.header-title h1 {
    font-size: 1.8rem;
    font-weight: 600;
    margin: 0;
}
.user-dropdown-btn {
    background-color: transparent !important;
    border: none !important;
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-color);
    display: flex;
    align-items: center;
}
.user-dropdown-btn .user-icon {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-right: 10px;
}
.dropdown-menu {
    box-shadow: var(--shadow-md);
    border-color: var(--border-color);
}
.dropdown-item .fa-fw {
    color: var(--text-color-light);
}

/* --- Sidebar dengan Tema Terang --- */
.sidebar {
    width: 260px;
    background-color: var(--sidebar-bg);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
}
.sidebar-header {
    padding: 20px;
    text-align: center;
    border-bottom: 1px solid var(--border-color);
}
.sidebar-header h3 {
    color: var(--primary-color);
    font-size: 1.5rem;
    font-weight: 700;
}
.sidebar-header span {
    font-size: 0.9rem;
    color: var(--text-color-light);
}

.sidebar-menu {
    list-style-type: none;
    padding: 15px 0;
    margin: 0;
    flex-grow: 1;
}
.sidebar-heading {
    padding: 12px 25px;
    font-size: 0.75rem;
    color: var(--text-color-light);
    text-transform: uppercase;
    font-weight: 700;
}
.sidebar-divider {
    margin: 15px 25px;
    border-top: 1px solid var(--border-color);
}

.sidebar-menu li a {
    display: flex;
    align-items: center;
    padding: 14px 25px;
    color: var(--text-color);
    text-decoration: none;
    font-weight: 500;
    border-left: 4px solid transparent;
    margin: 2px 15px;
    border-radius: 8px;
    transition: all 0.2s ease-in-out;
}
.sidebar-menu li a:hover {
    background-color: var(--primary-color-light);
    color: var(--primary-color);
}
.sidebar-menu li a.active {
    background-color: var(--primary-color);
    color: #ffffff;
    font-weight: 600;
    box-shadow: 0 4px 10px rgba(46, 125, 50, 0.3);
}
.sidebar-menu li a .fa-fw {
    margin-right: 15px;
    width: 20px;
    text-align: center;
}

/* --- Kartu Statistik & Konten --- */
.content-card {
    background-color: var(--content-bg);
    padding: 30px;
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    margin-bottom: 30px;
}
.stats-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 25px;
}
.stat-card {
    background-color: var(--content-bg);
    padding: 25px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    transition: transform 0.2s, box-shadow 0.2s;
}
.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}
.stat-card .info .number {
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--primary-color);
}
.stat-card .info .label {
    font-size: 0.95rem;
    color: var(--text-color-light);
}
.stat-card .icon i {
    font-size: 2.5rem;
    color: var(--primary-color);
    opacity: 0.15;
}

.toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 15px;
}

/* --- Formulir & Tombol --- */
.form-group { margin-bottom: 25px; }
.form-group label { font-weight: 500; margin-bottom: 8px; }
.form-control { width: 100%; padding: 14px 18px; border: 1px solid var(--border-color); border-radius: 8px; font-size: 1rem; transition: border-color 0.3s, box-shadow 0.3s; }
.form-control:focus { outline: none; border-color: var(--primary-color); box-shadow: 0 0 0 4px rgba(46, 125, 50, 0.15); }
.form-actions { display: flex; gap: 15px; margin-top: 25px; flex-wrap: wrap; }

.btn {
    padding: 12px 28px; border: none; border-radius: 8px;
    font-size: 0.95rem; font-weight: 600; cursor: pointer;
    transition: all 0.2s; text-decoration: none;
    display: inline-flex; align-items: center; gap: 8px;
}
.btn-primary { background-color: var(--primary-color); color: #ffffff; }
.btn-primary:hover { background-color: var(--primary-color-dark); box-shadow: 0 4px 12px rgba(46, 125, 50, 0.3); transform: translateY(-2px); }
.btn-success { background-color: var(--success-color); color: #ffffff; }
.btn-success:hover { background-color: #2E7D32; }
.btn-danger { background-color: var(--danger-color); color: #ffffff; }
.btn-danger:hover { background-color: #C62828; }
.btn-secondary { background-color: #90A4AE; color: #ffffff; }
.btn-secondary:hover { background-color: #607D8B; }
.btn-edit { background-color: var(--accent-color); color: var(--text-color); padding: 6px 14px; }
.btn-edit:hover { background-color: #FFB300; }
.btn-delete { padding: 6px 14px; }


/* --- Tabel Data --- */
.table-responsive { overflow-x: auto; }
.data-table { width: 100%; border-collapse: collapse; margin-top: 20px; }
.data-table th, .data-table td { padding: 15px; border-bottom: 1px solid #f0f0f0; text-align: left; vertical-align: middle; }
.data-table thead th { background-color: #fafafa; font-weight: 600; border-bottom-width: 2px; border-color: var(--border-color); }
.data-table tbody tr:hover { background-color: var(--background-color); }
.action-buttons { display: flex; gap: 10px; flex-wrap: wrap; }


/* ============================================= */
/* ==         STYLE RESPONSIVE LENGKAP        == */
/* ============================================= */
@media (max-width: 992px) {
    .login-visual-section { display: none; }
    .login-form-section { flex-basis: 100%; }
    .page-wrapper { flex-direction: column; }
    .sidebar { width: 100%; height: auto; flex-direction: row; justify-content: flex-start; overflow-x: auto; padding: 0; border-bottom: 2px solid var(--border-color); }
    .sidebar-header, .sidebar-divider, .sidebar-heading { display: none; }
    .sidebar-menu { flex-direction: row; flex-wrap: nowrap; padding: 0; }
    .sidebar-menu li a { padding: 15px; border-left: none; border-bottom: 4px solid transparent; margin: 0; border-radius: 0; }
    .sidebar-menu li a.active { border-bottom-color: var(--primary-color); background-color: var(--background-color); }
    .main-content, .main-header { padding: 20px; }
}
@media (max-width: 576px) {
    .header-title h1 { font-size: 1.5rem; }
    .stats-container { grid-template-columns: 1fr; }
    .toolbar { flex-direction: column; align-items: flex-start; }
    .content-card { padding: 20px; }
    .data-table { min-width: 600px; }
}