:root {
    --primary: #1a3a6b;
    --primary-light: #2a5298;
    --primary-dark: #0f2447;
    --accent: #4a7fd4;
    --bg: #f0f4f8;
    --white: #ffffff;
    --text: #333333;
    --text-light: #666666;
    --border: #e0e6ed;
    --success: #28a745;
    --danger: #dc3545;
    --warning: #ffc107;
    --sidebar-width: 260px;
    --header-height: 70px;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    overflow-x: hidden;
}

/* ========== LOGIN PAGE ========== */
.login-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    position: relative;
    overflow: hidden;
}

.login-wrapper::before {
    content: '';
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: url('../../../img/login-illustration.png') center center / cover no-repeat;
    z-index: -2;
}

.login-wrapper::after {
    content: '';
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: linear-gradient(135deg, rgba(26, 58, 107, 0.90) 0%, rgba(42, 82, 152, 0.85) 100%);
    z-index: -1;
}

.login-card {
    background: var(--white);
    border-radius: 20px;
    padding: 40px 35px;
    box-shadow: 0 25px 80px rgba(0,0,0,0.4);
    text-align: center;
    width: 100%;
    max-width: 450px;
    animation: slideUp 0.6s ease-out;
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

.login-logo {
    width: 80px; height: 80px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    border-radius: 50%;
    padding: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 20px rgba(26, 58, 107, 0.3);
}

.login-logo img { width: 100%; height: 100%; object-fit: contain; }

.login-header h1 {
    font-size: 24px;
    color: var(--primary);
    font-weight: 700;
    margin-bottom: 10px;
}

.login-header p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.5;
    margin-bottom: 30px;
}

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

.form-control {
    width: 100%;
    padding: 15px 18px;
    border: 2px solid var(--border);
    border-radius: 10px;
    font-size: 14px;
    transition: all 0.3s;
    outline: none;
    background: #f0f4f8;
}

.form-control:focus {
    border-color: var(--primary);
    background: var(--white);
    box-shadow: 0 0 0 4px rgba(26, 58, 107, 0.1);
}

.input-wrapper { position: relative; }

.password-toggle {
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-light);
    padding: 5px;
    transition: color 0.3s;
}

.password-toggle:hover { color: var(--primary); }

.btn-login {
    width: 100%;
    padding: 16px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: var(--white);
    border: none;
    border-radius: 10px;
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
    letter-spacing: 1.5px;
    transition: all 0.3s;
    margin-top: 10px;
    box-shadow: 0 8px 20px rgba(26, 58, 107, 0.3);
}

.btn-login:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 30px rgba(26, 58, 107, 0.4);
}

.login-footer {
    text-align: center;
    margin-top: 20px;
    font-size: 12px;
    color: var(--text-light);
}

/* ========== SISWA LAYOUT ========== */
.siswa-layout {
    display: flex;
    min-height: 100vh;
}

/* ===== SIDEBAR ===== */
.sidebar {
    width: var(--sidebar-width);
    background: var(--white);
    border-right: 1px solid var(--border);
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    z-index: 1000;
    transition: transform 0.3s ease;
    display: flex;
    flex-direction: column;
}

.sidebar-header {
    padding: 20px;
    text-align: center;
    border-bottom: 1px solid var(--border);
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: var(--white);
    flex-shrink: 0;
}

.sidebar-logo {
    width: 60px;
    height: 60px;
    margin: 0 auto 10px;
    background: var(--white);
    border-radius: 50%;
    padding: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.sidebar-logo img { 
    width: 100%; 
    height: 100%; 
    object-fit: contain; 
}

.sidebar-header h3 { 
    font-size: 16px; 
    font-weight: 700; 
}

/* MENU - SCROLLABLE */
.sidebar-menu {
    list-style: none;
    padding: 15px 0;
    margin: 0;
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    -webkit-overflow-scrolling: touch;
}

.sidebar-menu::-webkit-scrollbar { width: 4px; }
.sidebar-menu::-webkit-scrollbar-track { background: transparent; }
.sidebar-menu::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }

.sidebar-menu li a {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 14px 25px;
    color: var(--text-light);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.3s;
    border-left: 3px solid transparent;
}

.sidebar-menu li a:hover,
.sidebar-menu li a.active {
    background: #f0f4f8;
    color: var(--primary);
    border-left-color: var(--primary);
}

.sidebar-menu li a svg {
    width: 22px;
    height: 22px;
    flex-shrink: 0;
}

/* FOOTER - SELALU DI BAWAH */
.sidebar-footer {
    padding: 15px 20px;
    border-top: 1px solid var(--border);
    flex-shrink: 0;
    background: var(--white);
    margin-top: auto;
}

.btn-logout {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    padding: 12px;
    background: #fee2e2;
    color: var(--danger);
    border: none;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.3s;
}

.btn-logout:hover {
    background: #fecaca;
    transform: translateY(-1px);
}

.btn-logout svg { 
    width: 20px; 
    height: 20px; 
    flex-shrink: 0;
}

/* ===== OVERLAY ===== */
.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0; 
    left: 0; 
    right: 0; 
    bottom: 0;
    background: rgba(0,0,0,0.5);
    z-index: 999;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.sidebar-overlay.active {
    display: block;
    opacity: 1;
}

/* ===== MAIN CONTENT ===== */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    background: var(--bg);
}

.top-header {
    background: var(--white);
    padding: 20px 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    position: sticky;
    top: 0;
    z-index: 100;
}

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

.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--primary);
    padding: 5px;
}

.menu-toggle svg { width: 28px; height: 28px; }

.welcome-text h1 {
    font-size: 24px;
    color: var(--primary);
    font-weight: 700;
    margin-bottom: 5px;
}

.welcome-text p {
    font-size: 14px;
    color: var(--text-light);
}

.user-info {
    display: flex;
    align-items: center;
    gap: 12px;
    background: #f0f4f8;
    padding: 10px 18px;
    border-radius: 30px;
}

.user-avatar {
    width: 45px; height: 45px;
    background: var(--primary);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 16px;
}

.user-details { text-align: right; }
.user-details .name { font-weight: 600; font-size: 14px; color: var(--text); }
.user-details .nisn { font-size: 11px; color: var(--text-light); }

.content-body { padding: 30px; }

/* Menu Cards */
.menu-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
    margin-top: 20px;
}

.menu-card {
    background: var(--white);
    border-radius: 16px;
    padding: 35px 25px;
    text-align: center;
    text-decoration: none;
    color: var(--text);
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
    border: 1px solid var(--border);
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
}

.menu-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 4px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    transform: scaleX(0);
    transition: transform 0.3s;
}

.menu-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 30px rgba(26, 58, 107, 0.15);
    border-color: var(--primary);
}

.menu-card:hover::before { transform: scaleX(1); }

.menu-icon {
    width: 70px; height: 70px;
    background: #f0f4f8;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 18px;
    transition: all 0.3s;
}

.menu-card:hover .menu-icon { background: var(--primary); }

.menu-icon svg {
    width: 32px; height: 32px;
    color: var(--primary);
    transition: all 0.3s;
}

.menu-card:hover .menu-icon svg { color: var(--white); }

.menu-card h3 {
    font-size: 17px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--primary);
}

.menu-card p {
    font-size: 13px;
    color: var(--text-light);
    line-height: 1.5;
}

.badge-count {
    background: var(--danger);
    color: var(--white);
    font-size: 11px;
    padding: 3px 10px;
    border-radius: 12px;
    margin-top: 12px;
    display: inline-block;
    font-weight: 600;
}

/* Jadwal Cards */
.jadwal-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 20px;
}

.jadwal-card {
    background: var(--white);
    border-radius: 12px;
    padding: 25px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
    border: 1px solid var(--border);
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
}

.jadwal-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 4px; height: 100%;
    background: var(--primary);
}

.jadwal-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(26, 58, 107, 0.15);
    border-color: var(--primary);
}

.mapel-badge {
    display: inline-block;
    background: #e8eef5;
    color: var(--primary);
    padding: 5px 14px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 15px;
}

.ujian-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 15px;
}

.info-row {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
    font-size: 13px;
    color: var(--text-light);
}

.info-row svg {
    width: 16px; height: 16px;
    color: var(--primary);
    flex-shrink: 0;
}

.btn-mulai {
    display: block;
    width: 100%;
    padding: 12px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: var(--white);
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    text-align: center;
    text-decoration: none;
    margin-top: 20px;
    transition: all 0.3s;
}

.btn-mulai:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(26, 58, 107, 0.3);
}

.empty-state {
    text-align: center;
    padding: 60px 20px;
    background: var(--white);
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.empty-state svg {
    width: 80px; height: 80px;
    color: #ccc;
    margin-bottom: 20px;
}

.empty-state h3 {
    font-size: 20px;
    color: var(--text-light);
    margin-bottom: 10px;
}

.empty-state p { color: #999; font-size: 14px; }

/* ========== RESPONSIVE ========== */
@media (max-width: 992px) {
    .sidebar {
        transform: translateX(-100%);
        box-shadow: 2px 0 10px rgba(0,0,0,0.1);
    }
    
    .sidebar.active {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .menu-toggle {
        display: block;
    }
    
    .welcome-text h1 { font-size: 20px; }
    .user-details { display: none; }
}

@media (max-width: 768px) {
    .login-card { padding: 30px 25px; }
    .login-header h1 { font-size: 20px; }
    .content-body { padding: 20px; }
    .top-header { padding: 15px 20px; }
    .menu-grid { grid-template-columns: 1fr; }
    .jadwal-grid { grid-template-columns: 1fr; }
    .user-info { padding: 8px 12px; }
    .user-avatar { width: 40px; height: 40px; font-size: 14px; }
    
    .sidebar { width: 260px; }
}

@media (max-width: 480px) {
    .login-card { padding: 25px 20px; }
    .form-control { padding: 12px 15px; }
    .btn-login { padding: 14px; }
    .menu-card { padding: 25px 20px; }
    .menu-icon { width: 60px; height: 60px; }
    .menu-icon svg { width: 28px; height: 28px; }
    
    .welcome-text h1 { font-size: 18px; }
    .welcome-text p { font-size: 12px; }
    .content-body { padding: 15px; }
}