:root {
    --primary: #4361ee;
    --primary-light: #e0e7ff;
    --secondary: #3f37c9;
    --success: #4cc9f0;
    --success-light: #e0f7ff;
    --danger: #f72585;
    --warning: #f8961e;
    --warning-light: #fff3e0;
    --light: #f8f9fa;
    --dark: #212529;
    --gray: #6c757d;
    --light-gray: #f1f3f5;
    --border-radius: 8px;
    --box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
    --sidebar-width: 280px;
    --sidebar-collapsed-width: 80px;
}

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

body {
    font-family: 'Poppins', sans-serif;
    background: #f8f9fa;
    color: var(--dark);
    min-height: 100vh;
    font-size: 13px;
    line-height: 1.5;
}

.app-container {
    display: flex;
    min-height: 100vh;
    position: relative;
}

/* Sidebar Styles */
.sidebar {
    width: var(--sidebar-width);
    background: white;
    box-shadow: var(--box-shadow);
    height: 100vh;
    position: fixed;
    left: 0;
    top: 0;
    z-index: 100;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.sidebar-header {
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid #eee;
    height: 70px;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-icon {
    font-size: 1.5rem;
    color: var(--primary);
}

.logo-text {
    font-weight: 600;
    color: var(--dark);
    white-space: nowrap;
}

.sidebar-toggle {
    background: none;
    border: none;
    color: var(--gray);
    cursor: pointer;
    font-size: 1rem;
    transition: var(--transition);
    padding: 5px;
    border-radius: 50%;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.sidebar-toggle:hover {
    background: var(--light-gray);
    color: var(--primary);
}

.sidebar-menu {
    flex: 1;
    overflow-y: auto;
    padding: 20px 0;
}

.menu-items {
    list-style: none;
}

.menu-item {
    padding: 12px 20px;
    display: flex;
    align-items: center;
    gap: 15px;
    cursor: pointer;
    transition: var(--transition);
    color: var(--gray);
    white-space: nowrap;
}

.menu-item i {
    font-size: 1.1rem;
    width: 24px;
    text-align: center;
}

.menu-item:hover {
    background: var(--light-gray);
    color: var(--primary);
}

.menu-item.active {
    background: var(--primary-light);
    color: var(--primary);
    border-left: 3px solid var(--primary);
}

.sidebar-login {
    margin-top: auto;
    padding: 20px;
    border-top: 1px solid #eee;
}

.login-header {
    display: flex;
    align-items: center;
    gap: 15px;
    cursor: pointer;
    padding: 10px 0;
    color: var(--gray);
}

.login-header i {
    font-size: 1.2rem;
}

.login-content {
    padding-top: 10px;
    display: none;
}

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

.google-login-btn {
    width: 100%;
    background: #db4437;
    color: white;
    border: none;
    padding: 10px;
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.9rem;
}

.google-login-btn:hover {
    background: #c33d2f;
}

.google-icon {
    width: 18px;
    height: 18px;
}

.login-note {
    margin-top: 10px;
    font-size: 0.8rem;
    color: var(--gray);
    background: var(--warning-light);
    padding: 8px;
    border-radius: var(--border-radius);
    border-left: 3px solid var(--warning);
}

/* Main Content Styles */
.main-content {
    margin-left: var(--sidebar-width);
    flex: 1;
    transition: var(--transition);
    min-height: 100vh;
}

.content-area {
    flex: 1;
    padding: 20px;
    height: calc(100vh - 40px); /* 20px padding top-bottom */
}

/* Collapsed Sidebar Styles */
.sidebar.collapsed {
    width: var(--sidebar-collapsed-width);
}

.sidebar.collapsed .logo-text,
.sidebar.collapsed .menu-text,
.sidebar.collapsed .login-text,
.sidebar.collapsed .login-content,
.sidebar.collapsed .sidebar-toggle i {
    display: none;
}

.sidebar.collapsed .sidebar-toggle i.fa-chevron-left {
    display: block;
    transform: rotate(180deg);
}

.sidebar.collapsed .menu-item {
    justify-content: center;
    padding: 15px 0;
}

.sidebar.collapsed .login-header {
    justify-content: center;
}

.main-content.expanded {
    margin-left: var(--sidebar-collapsed-width);
}

/* Modal Styles */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal-container {
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    width: 100%;
    max-width: 400px;
    transform: translateY(20px);
    transition: var(--transition);
}

.modal-overlay.active .modal-container {
    transform: translateY(0);
}

.modal-header {
    padding: 20px;
    border-bottom: 1px solid #eee;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    font-size: 1.3rem;
    color: var(--dark);
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--gray);
    transition: var(--transition);
}

.modal-close:hover {
    color: var(--danger);
}

.modal-body {
    padding: 20px;
}

.auth-options {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.modal-btn {
    width: 100%;
    padding: 12px;
    border-radius: var(--border-radius);
    border: none;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

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

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

.auth-divider {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--gray);
    font-size: 0.9rem;
}

.auth-divider::before,
.auth-divider::after {
    content: "";
    flex: 1;
    height: 1px;
    background: #eee;
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.form-group label {
    font-size: 0.9rem;
    color: var(--dark);
    font-weight: 500;
}

.form-group input {
    padding: 10px 12px;
    border: 1px solid #ddd;
    border-radius: var(--border-radius);
    font-family: 'Poppins', sans-serif;
    transition: var(--transition);
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(67, 97, 238, 0.2);
}

.auth-footer {
    margin-top: 20px;
    text-align: center;
    font-size: 0.85rem;
    color: var(--gray);
}

.auth-footer a {
    color: var(--primary);
    text-decoration: none;
    transition: var(--transition);
}

.auth-footer a:hover {
    text-decoration: underline;
}

/* Mobile Styles */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
        width: 280px;
    }

    .sidebar.visible {
        transform: translateX(0);
    }

    .sidebar.collapsed {
        transform: translateX(0);
        width: 80px;
    }

    .main-content {
        margin-left: 0;
    }

    .sidebar-toggle {
        display: none;
    }
    
    .modal-container {
        width: 90%;
        margin: 0 auto;
    }
}

/* Content Loading Styles */
.loading-content {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 200px;
    color: var(--gray);
}

.loading-content i {
    margin-right: 10px;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Button Styles */
.btn {
    padding: 8px 12px;
    border: none;
    border-radius: 6px;
    font-family: 'Poppins', sans-serif;
    font-weight: 500;
    font-size: 12px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 5px;
}

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

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

.btn-secondary {
    background: var(--gray);
    color: white;
}

.btn-secondary:hover {
    background: #5a6268;
}

/* ===== Responsive iframe untuk konten internal ===== */
.responsive-frame {
    width: 100%;
    height: calc(100vh - 150px);   /* 70px header + 40px padding-top + 40px padding-bottom ≈ 150px */
    border: none;
    border-radius: var(--border-radius);
}

@media (max-width: 768px) {
    .responsive-frame {
        height: calc(100vh - 120px);   /* sedikit lebih pendek di mobile karena padding lebih ketat */
    }
}

.role-selection {
    display: flex;
    gap: 1rem;
    justify-content: center;
    padding: 2rem 0;
}

.role-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 2rem;
    border: 2px solid #e5e7eb;
    border-radius: 12px;
    background: white;
    cursor: pointer;
    transition: all 0.3s ease;
    min-width: 150px;
}

.role-btn:hover {
    border-color: #3b82f6;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.2);
}

.role-btn i {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    color: #3b82f6;
}