/* ============================================
   Magister Penjas Unsur - Custom Stylesheet
   Universitas Suryakancana
   ============================================ */

/* --- CSS Variables / Design Tokens --- */
:root {
    /* Primary Colors */
    --unsur-navy: #0a1628;
    --unsur-navy-light: #132744;
    --unsur-blue: #1a3a6b;
    --unsur-blue-medium: #2952a3;
    --unsur-blue-accent: #3b6dd6;
    --unsur-blue-light: #5a8dee;
    --unsur-blue-pale: #e8eef8;

    /* Neutral Colors */
    --unsur-white: #ffffff;
    --unsur-gray-50: #f8f9fc;
    --unsur-gray-100: #f1f3f8;
    --unsur-gray-200: #e2e6ef;
    --unsur-gray-300: #c8cfdd;
    --unsur-gray-400: #9ba5b7;
    --unsur-gray-500: #6b7a90;
    --unsur-gray-600: #4a5568;
    --unsur-gray-700: #2d3748;
    --unsur-gray-800: #1a202c;
    --unsur-gray-900: #0d1117;

    /* Accent Colors */
    --unsur-gold: #d4a843;
    --unsur-gold-light: #f0dda0;
    --unsur-green: #28a745;
    --unsur-green-light: #d4edda;
    --unsur-red: #dc3545;
    --unsur-red-light: #f8d7da;
    --unsur-orange: #fd7e14;
    --unsur-orange-light: #ffe5cc;
    --unsur-teal: #20c997;

    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(10, 22, 40, 0.06);
    --shadow-md: 0 4px 12px rgba(10, 22, 40, 0.08);
    --shadow-lg: 0 10px 30px rgba(10, 22, 40, 0.12);
    --shadow-xl: 0 20px 50px rgba(10, 22, 40, 0.16);
    --shadow-card: 0 2px 8px rgba(10, 22, 40, 0.06), 0 0 1px rgba(10, 22, 40, 0.08);

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-heading: 'Plus Jakarta Sans', 'Inter', sans-serif;

    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-xl: 20px;
    --radius-full: 50%;

    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.25s ease;
    --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);

    /* Sidebar */
    --sidebar-width: 270px;
    --sidebar-collapsed-width: 74px;
    --topbar-height: 64px;
}

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

body {
    font-family: var(--font-primary);
    color: var(--unsur-gray-700);
    background-color: var(--unsur-gray-50);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--unsur-navy);
    font-weight: 700;
    line-height: 1.3;
}

a {
    text-decoration: none;
    color: var(--unsur-blue-accent);
    transition: color var(--transition-fast);
}
a:hover {
    color: var(--unsur-blue);
}

/* ============================================
   PUBLIC WEBSITE STYLES
   ============================================ */

/* --- Public Navbar --- */
.navbar-unsur {
    background: rgba(10, 22, 40, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    padding: 0.6rem 0;
    transition: all var(--transition-smooth);
    z-index: 1040;
}
.navbar-unsur.scrolled {
    background: rgba(10, 22, 40, 0.98);
    box-shadow: var(--shadow-lg);
    padding: 0.4rem 0;
}
.navbar-unsur .navbar-brand {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.3rem;
    color: var(--unsur-white) !important;
    display: flex;
    align-items: center;
    gap: 0.6rem;
    letter-spacing: -0.3px;
}
.navbar-unsur .navbar-brand .brand-icon {
    width: 38px;
    height: 38px;
    background: linear-gradient(135deg, var(--unsur-blue-accent), var(--unsur-gold));
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    color: white;
}
.navbar-unsur .nav-link {
    color: rgba(255, 255, 255, 0.75) !important;
    font-weight: 500;
    font-size: 0.92rem;
    padding: 0.5rem 1rem !important;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    position: relative;
}
.navbar-unsur .nav-link:hover,
.navbar-unsur .nav-link.active {
    color: var(--unsur-white) !important;
    background: rgba(255, 255, 255, 0.08);
}
.navbar-unsur .btn-login {
    background: linear-gradient(135deg, var(--unsur-blue-accent), var(--unsur-blue-medium));
    color: var(--unsur-white) !important;
    border: none;
    padding: 0.48rem 1.4rem !important;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.9rem;
    transition: all var(--transition-normal);
    box-shadow: 0 2px 8px rgba(59, 109, 214, 0.3);
}
.navbar-unsur .btn-login:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(59, 109, 214, 0.4);
    background: linear-gradient(135deg, var(--unsur-blue-light), var(--unsur-blue-accent));
}

/* --- Hero Section --- */
.hero-section {
    background: linear-gradient(135deg, var(--unsur-navy) 0%, var(--unsur-blue) 50%, var(--unsur-blue-medium) 100%);
    min-height: 92vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    color: var(--unsur-white);
}
.hero-section::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 70%;
    height: 200%;
    background: radial-gradient(ellipse, rgba(59, 109, 214, 0.15) 0%, transparent 70%);
    animation: heroGlow 8s ease-in-out infinite alternate;
}
.hero-section::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 120px;
    background: linear-gradient(to top, var(--unsur-gray-50), transparent);
}
@keyframes heroGlow {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(-5%, 5%) scale(1.1); }
}
.hero-content {
    position: relative;
    z-index: 2;
}
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.15);
    padding: 0.4rem 1rem;
    border-radius: 50px;
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 1.5rem;
    backdrop-filter: blur(8px);
}
.hero-badge i {
    color: var(--unsur-gold);
}
.hero-title {
    font-family: var(--font-heading);
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 1.2rem;
    letter-spacing: -1px;
    color: var(--unsur-white);
}
.hero-title .text-gradient {
    background: linear-gradient(135deg, var(--unsur-gold) 0%, var(--unsur-gold-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.hero-subtitle {
    font-size: 1.15rem;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 2rem;
    max-width: 540px;
    line-height: 1.7;
}
.hero-buttons .btn {
    padding: 0.7rem 1.8rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    transition: all var(--transition-normal);
}
.hero-buttons .btn-primary-hero {
    background: linear-gradient(135deg, var(--unsur-gold), #c49630);
    border: none;
    color: var(--unsur-navy);
    box-shadow: 0 4px 16px rgba(212, 168, 67, 0.35);
}
.hero-buttons .btn-primary-hero:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(212, 168, 67, 0.45);
}
.hero-buttons .btn-outline-hero {
    border: 2px solid rgba(255, 255, 255, 0.3);
    color: var(--unsur-white);
    background: transparent;
}
.hero-buttons .btn-outline-hero:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.5);
    color: var(--unsur-white);
}
.hero-stats {
    display: flex;
    gap: 2.5rem;
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}
.hero-stat h3 {
    font-size: 2rem;
    font-weight: 800;
    color: var(--unsur-white);
    margin-bottom: 0.2rem;
}
.hero-stat p {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.55);
    margin: 0;
}
.hero-visual {
    position: relative;
    z-index: 2;
}
.hero-card-stack {
    position: relative;
    max-width: 480px;
    margin-left: auto;
}
.hero-card {
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    margin-bottom: 1rem;
    transition: transform var(--transition-smooth);
}
.hero-card:hover {
    transform: translateY(-4px);
}
.hero-card .card-icon {
    width: 42px;
    height: 42px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    margin-bottom: 0.8rem;
}
.hero-card h5 {
    color: var(--unsur-white);
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.3rem;
}
.hero-card p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.85rem;
    margin: 0;
}

/* --- Section Styles --- */
.section-padding {
    padding: 5rem 0;
}
.section-title {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--unsur-navy);
    margin-bottom: 0.5rem;
    letter-spacing: -0.5px;
}
.section-subtitle {
    font-size: 1.05rem;
    color: var(--unsur-gray-500);
    max-width: 600px;
    margin: 0 auto 3rem;
}
.section-label {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--unsur-blue-accent);
    margin-bottom: 0.6rem;
}

/* --- Feature Cards --- */
.feature-card {
    background: var(--unsur-white);
    border-radius: var(--radius-lg);
    padding: 2rem;
    height: 100%;
    border: 1px solid var(--unsur-gray-200);
    transition: all var(--transition-smooth);
    position: relative;
    overflow: hidden;
}
.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--unsur-blue-accent), var(--unsur-gold));
    opacity: 0;
    transition: opacity var(--transition-normal);
}
.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}
.feature-card:hover::before {
    opacity: 1;
}
.feature-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    margin-bottom: 1.2rem;
}
.feature-icon.blue {
    background: var(--unsur-blue-pale);
    color: var(--unsur-blue-accent);
}
.feature-icon.gold {
    background: rgba(212, 168, 67, 0.12);
    color: var(--unsur-gold);
}
.feature-icon.green {
    background: var(--unsur-green-light);
    color: var(--unsur-green);
}
.feature-icon.teal {
    background: rgba(32, 201, 151, 0.12);
    color: var(--unsur-teal);
}
.feature-icon.orange {
    background: var(--unsur-orange-light);
    color: var(--unsur-orange);
}
.feature-icon.navy {
    background: rgba(10, 22, 40, 0.08);
    color: var(--unsur-navy);
}
.feature-card h4 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}
.feature-card p {
    font-size: 0.9rem;
    color: var(--unsur-gray-500);
    margin: 0;
    line-height: 1.6;
}

/* --- Announcement Card --- */
.announcement-card {
    background: var(--unsur-white);
    border-radius: var(--radius-md);
    padding: 1.4rem;
    border: 1px solid var(--unsur-gray-200);
    transition: all var(--transition-smooth);
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}
.announcement-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}
.announcement-date {
    background: var(--unsur-blue-pale);
    border-radius: var(--radius-sm);
    padding: 0.6rem 0.8rem;
    text-align: center;
    min-width: 60px;
    flex-shrink: 0;
}
.announcement-date .day {
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--unsur-blue-accent);
    line-height: 1;
    display: block;
}
.announcement-date .month {
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--unsur-gray-500);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.announcement-card h5 {
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 0.3rem;
    line-height: 1.4;
}
.announcement-card p {
    font-size: 0.85rem;
    color: var(--unsur-gray-500);
    margin: 0;
}
.announcement-badge {
    font-size: 0.7rem;
    padding: 0.2rem 0.6rem;
    border-radius: 50px;
    font-weight: 600;
}

/* --- CTA Section --- */
.cta-section {
    background: linear-gradient(135deg, var(--unsur-navy) 0%, var(--unsur-blue) 100%);
    color: var(--unsur-white);
    position: relative;
    overflow: hidden;
}
.cta-section::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -20%;
    width: 60%;
    height: 200%;
    background: radial-gradient(ellipse, rgba(212, 168, 67, 0.08) 0%, transparent 70%);
}
.cta-section h2 {
    color: var(--unsur-white);
}

/* --- Footer --- */
.footer-unsur {
    background: var(--unsur-navy);
    color: rgba(255, 255, 255, 0.65);
    padding: 4rem 0 0;
}
.footer-unsur h5 {
    color: var(--unsur-white);
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 1.2rem;
}
.footer-unsur ul {
    list-style: none;
    padding: 0;
    margin: 0;
}
.footer-unsur ul li {
    margin-bottom: 0.5rem;
}
.footer-unsur ul li a {
    color: rgba(255, 255, 255, 0.55);
    font-size: 0.9rem;
    transition: all var(--transition-fast);
}
.footer-unsur ul li a:hover {
    color: var(--unsur-gold);
    padding-left: 4px;
}
.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding: 1.5rem 0;
    margin-top: 3rem;
    font-size: 0.85rem;
}
.footer-brand {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.2rem;
    color: var(--unsur-white);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.8rem;
}

/* ============================================
   LOGIN PAGE
   ============================================ */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: stretch;
}
.login-left {
    background: linear-gradient(135deg, var(--unsur-navy) 0%, var(--unsur-blue) 100%);
    color: var(--unsur-white);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 3rem;
    position: relative;
    overflow: hidden;
}
.login-left::before {
    content: '';
    position: absolute;
    top: -30%;
    right: -30%;
    width: 80%;
    height: 160%;
    background: radial-gradient(ellipse, rgba(59, 109, 214, 0.2) 0%, transparent 70%);
}
.login-right {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 3rem;
    background: var(--unsur-white);
}
.login-form-wrapper {
    max-width: 420px;
    width: 100%;
}
.login-form-wrapper h2 {
    font-size: 1.8rem;
    margin-bottom: 0.3rem;
}
.login-form-wrapper .subtitle {
    color: var(--unsur-gray-500);
    font-size: 0.95rem;
    margin-bottom: 2rem;
}
.form-floating-custom .form-control {
    border: 2px solid var(--unsur-gray-200);
    border-radius: var(--radius-sm);
    padding: 0.7rem 1rem;
    font-size: 0.95rem;
    transition: all var(--transition-fast);
    background: var(--unsur-gray-50);
}
.form-floating-custom .form-control:focus {
    border-color: var(--unsur-blue-accent);
    box-shadow: 0 0 0 3px rgba(59, 109, 214, 0.12);
    background: var(--unsur-white);
}
.btn-login-submit {
    background: linear-gradient(135deg, var(--unsur-blue-accent), var(--unsur-blue-medium));
    color: var(--unsur-white);
    border: none;
    padding: 0.75rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 1rem;
    width: 100%;
    transition: all var(--transition-normal);
    box-shadow: 0 4px 12px rgba(59, 109, 214, 0.25);
}
.btn-login-submit:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(59, 109, 214, 0.35);
    color: var(--unsur-white);
}
.demo-login-cards .card {
    border: 2px solid var(--unsur-gray-200);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
    padding: 0.8rem;
}
.demo-login-cards .card:hover {
    border-color: var(--unsur-blue-accent);
    box-shadow: var(--shadow-md);
}
.demo-login-cards .card.active {
    border-color: var(--unsur-blue-accent);
    background: var(--unsur-blue-pale);
}

/* ============================================
   DASHBOARD STYLES
   ============================================ */

/* --- Sidebar --- */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: var(--sidebar-width);
    height: 100vh;
    background: var(--unsur-navy);
    z-index: 1030;
    transition: all var(--transition-smooth);
    overflow-y: auto;
    overflow-x: hidden;
    display: flex;
    flex-direction: column;
}
.sidebar::-webkit-scrollbar {
    width: 4px;
}
.sidebar::-webkit-scrollbar-track {
    background: transparent;
}
.sidebar::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.15);
    border-radius: 10px;
}
.sidebar-brand {
    padding: 1.2rem 1.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    display: flex;
    align-items: center;
    gap: 0.7rem;
    flex-shrink: 0;
}
.sidebar-brand .brand-icon {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--unsur-blue-accent), var(--unsur-gold));
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    color: white;
    flex-shrink: 0;
}
.sidebar-brand span {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.05rem;
    color: var(--unsur-white);
    white-space: nowrap;
}
.sidebar-role-badge {
    margin: 0.8rem 1.5rem;
    padding: 0.35rem 0.8rem;
    border-radius: 50px;
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    text-align: center;
}
.sidebar-role-badge.mahasiswa {
    background: rgba(59, 109, 214, 0.15);
    color: var(--unsur-blue-light);
}
.sidebar-role-badge.dosen {
    background: rgba(32, 201, 151, 0.15);
    color: var(--unsur-teal);
}
.sidebar-role-badge.admin {
    background: rgba(212, 168, 67, 0.15);
    color: var(--unsur-gold);
}

.sidebar-menu {
    padding: 0.5rem 0;
    flex-grow: 1;
}
.sidebar-menu-label {
    padding: 1rem 1.5rem 0.4rem;
    font-size: 0.68rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: rgba(255, 255, 255, 0.3);
}
.sidebar-menu a {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.6rem 1.5rem;
    color: rgba(255, 255, 255, 0.55);
    font-size: 0.9rem;
    font-weight: 500;
    border-radius: 0;
    margin: 1px 0;
    transition: all var(--transition-fast);
    position: relative;
    white-space: nowrap;
}
.sidebar-menu a i {
    font-size: 1.1rem;
    width: 22px;
    text-align: center;
    flex-shrink: 0;
}
.sidebar-menu a:hover {
    color: var(--unsur-white);
    background: rgba(255, 255, 255, 0.06);
}
.sidebar-menu a.active {
    color: var(--unsur-white);
    background: rgba(59, 109, 214, 0.2);
    font-weight: 600;
}
.sidebar-menu a.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    width: 3px;
    height: 100%;
    background: var(--unsur-blue-accent);
    border-radius: 0 4px 4px 0;
}
.sidebar-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    flex-shrink: 0;
}
.sidebar-footer a {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: rgba(255, 255, 255, 0.45);
    font-size: 0.88rem;
    font-weight: 500;
    transition: all var(--transition-fast);
    padding: 0.4rem 0;
}
.sidebar-footer a:hover {
    color: var(--unsur-red);
}

/* --- Topbar --- */
.topbar {
    position: fixed;
    top: 0;
    left: var(--sidebar-width);
    right: 0;
    height: var(--topbar-height);
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--unsur-gray-200);
    z-index: 1020;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 1.5rem;
    transition: left var(--transition-smooth);
}
.topbar-left {
    display: flex;
    align-items: center;
    gap: 1rem;
}
.topbar-left .page-title {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.15rem;
    color: var(--unsur-navy);
    margin: 0;
}
.topbar-left .breadcrumb {
    margin: 0;
    font-size: 0.82rem;
}
.topbar-left .breadcrumb-item a {
    color: var(--unsur-gray-400);
}
.topbar-left .breadcrumb-item.active {
    color: var(--unsur-gray-600);
}
.topbar-right {
    display: flex;
    align-items: center;
    gap: 0.8rem;
}
.topbar-icon-btn {
    width: 38px;
    height: 38px;
    border-radius: var(--radius-sm);
    border: none;
    background: var(--unsur-gray-100);
    color: var(--unsur-gray-600);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    position: relative;
}
.topbar-icon-btn:hover {
    background: var(--unsur-blue-pale);
    color: var(--unsur-blue-accent);
}
.topbar-icon-btn .badge-dot {
    position: absolute;
    top: 8px;
    right: 8px;
    width: 7px;
    height: 7px;
    background: var(--unsur-red);
    border-radius: 50%;
    border: 2px solid var(--unsur-white);
}
.topbar-user {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    cursor: pointer;
    padding: 0.3rem 0.6rem;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}
.topbar-user:hover {
    background: var(--unsur-gray-100);
}
.topbar-user-avatar {
    width: 34px;
    height: 34px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--unsur-blue-accent), var(--unsur-blue-medium));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--unsur-white);
    font-weight: 700;
    font-size: 0.85rem;
}
.topbar-user-info {
    line-height: 1.2;
}
.topbar-user-info .name {
    font-weight: 600;
    font-size: 0.88rem;
    color: var(--unsur-gray-800);
}
.topbar-user-info .role {
    font-size: 0.72rem;
    color: var(--unsur-gray-400);
}

/* Toggle Sidebar Button */
.sidebar-toggle {
    width: 34px;
    height: 34px;
    border-radius: var(--radius-sm);
    border: none;
    background: var(--unsur-gray-100);
    color: var(--unsur-gray-600);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
}
.sidebar-toggle:hover {
    background: var(--unsur-blue-pale);
    color: var(--unsur-blue-accent);
}

/* --- Main Content --- */
.main-content {
    margin-left: var(--sidebar-width);
    padding-top: calc(var(--topbar-height) + 1.5rem);
    padding-left: 1.5rem;
    padding-right: 1.5rem;
    padding-bottom: 2rem;
    min-height: 100vh;
    transition: margin-left var(--transition-smooth);
}

/* --- Dashboard Cards --- */
.stat-card {
    background: var(--unsur-white);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    border: 1px solid var(--unsur-gray-200);
    transition: all var(--transition-smooth);
    position: relative;
    overflow: hidden;
}
.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}
.stat-card .stat-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
}
.stat-card .stat-value {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--unsur-navy);
    line-height: 1;
    margin-bottom: 0.2rem;
}
.stat-card .stat-label {
    font-size: 0.82rem;
    color: var(--unsur-gray-500);
    margin: 0;
}
.stat-card .stat-change {
    font-size: 0.75rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.2rem;
}

/* --- Dashboard Content Cards --- */
.content-card {
    background: var(--unsur-white);
    border-radius: var(--radius-lg);
    border: 1px solid var(--unsur-gray-200);
    overflow: hidden;
}
.content-card .card-header-custom {
    padding: 1.2rem 1.5rem;
    border-bottom: 1px solid var(--unsur-gray-200);
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: transparent;
}
.content-card .card-header-custom h5 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--unsur-navy);
    margin: 0;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.content-card .card-header-custom h5 i {
    color: var(--unsur-blue-accent);
}
.content-card .card-body-custom {
    padding: 1.5rem;
}

/* --- Tables --- */
.table-custom {
    margin: 0;
    font-size: 0.88rem;
}
.table-custom thead th {
    background: var(--unsur-gray-50);
    border-bottom: 2px solid var(--unsur-gray-200);
    color: var(--unsur-gray-600);
    font-weight: 600;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 0.8rem 1rem;
    white-space: nowrap;
}
.table-custom tbody td {
    padding: 0.8rem 1rem;
    vertical-align: middle;
    border-bottom: 1px solid var(--unsur-gray-100);
    color: var(--unsur-gray-700);
}
.table-custom tbody tr:hover {
    background: var(--unsur-gray-50);
}
.table-custom tbody tr:last-child td {
    border-bottom: none;
}

/* --- Custom Badge --- */
.badge-unsur {
    font-size: 0.72rem;
    font-weight: 600;
    padding: 0.3rem 0.7rem;
    border-radius: 50px;
    letter-spacing: 0.3px;
}
.badge-unsur.blue {
    background: var(--unsur-blue-pale);
    color: var(--unsur-blue-accent);
}
.badge-unsur.green {
    background: var(--unsur-green-light);
    color: var(--unsur-green);
}
.badge-unsur.gold {
    background: rgba(212, 168, 67, 0.12);
    color: #b8912e;
}
.badge-unsur.red {
    background: var(--unsur-red-light);
    color: var(--unsur-red);
}
.badge-unsur.orange {
    background: var(--unsur-orange-light);
    color: var(--unsur-orange);
}
.badge-unsur.gray {
    background: var(--unsur-gray-100);
    color: var(--unsur-gray-500);
}
.badge-unsur.navy {
    background: rgba(10, 22, 40, 0.08);
    color: var(--unsur-navy);
}
.badge-unsur.teal {
    background: rgba(32, 201, 151, 0.12);
    color: var(--unsur-teal);
}

/* --- Custom Buttons --- */
.btn-unsur-primary {
    background: linear-gradient(135deg, var(--unsur-blue-accent), var(--unsur-blue-medium));
    color: var(--unsur-white);
    border: none;
    font-weight: 600;
    border-radius: var(--radius-sm);
    padding: 0.5rem 1.2rem;
    font-size: 0.88rem;
    transition: all var(--transition-normal);
    box-shadow: 0 2px 8px rgba(59, 109, 214, 0.2);
}
.btn-unsur-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 14px rgba(59, 109, 214, 0.3);
    color: var(--unsur-white);
}
.btn-unsur-outline {
    border: 2px solid var(--unsur-gray-200);
    color: var(--unsur-gray-600);
    background: transparent;
    font-weight: 600;
    border-radius: var(--radius-sm);
    padding: 0.45rem 1.2rem;
    font-size: 0.88rem;
    transition: all var(--transition-fast);
}
.btn-unsur-outline:hover {
    border-color: var(--unsur-blue-accent);
    color: var(--unsur-blue-accent);
    background: var(--unsur-blue-pale);
}
.btn-sm-unsur {
    padding: 0.3rem 0.8rem;
    font-size: 0.8rem;
}

/* --- Profile Card --- */
.profile-card {
    background: var(--unsur-white);
    border-radius: var(--radius-lg);
    border: 1px solid var(--unsur-gray-200);
    overflow: hidden;
}
.profile-header {
    background: linear-gradient(135deg, var(--unsur-navy), var(--unsur-blue));
    padding: 2.5rem;
    text-align: center;
    position: relative;
}
.profile-avatar {
    width: 100px;
    height: 100px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--unsur-blue-accent), var(--unsur-gold));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--unsur-white);
    font-size: 2.2rem;
    font-weight: 800;
    margin: 0 auto 1rem;
    border: 4px solid rgba(255, 255, 255, 0.2);
}
.profile-header h3 {
    color: var(--unsur-white);
    font-size: 1.3rem;
    margin-bottom: 0.3rem;
}
.profile-header p {
    color: rgba(255, 255, 255, 0.65);
    font-size: 0.9rem;
    margin: 0;
}
.profile-details {
    padding: 1.5rem;
}
.profile-detail-item {
    display: flex;
    padding: 0.8rem 0;
    border-bottom: 1px solid var(--unsur-gray-100);
}
.profile-detail-item:last-child {
    border-bottom: none;
}
.profile-detail-item .label {
    width: 140px;
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--unsur-gray-500);
    flex-shrink: 0;
}
.profile-detail-item .value {
    font-size: 0.9rem;
    color: var(--unsur-gray-700);
    font-weight: 500;
}

/* --- Form Elements --- */
.form-label-custom {
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--unsur-gray-700);
    margin-bottom: 0.4rem;
}
.form-control-custom {
    border: 2px solid var(--unsur-gray-200);
    border-radius: var(--radius-sm);
    padding: 0.6rem 1rem;
    font-size: 0.9rem;
    transition: all var(--transition-fast);
    background: var(--unsur-gray-50);
}
.form-control-custom:focus {
    border-color: var(--unsur-blue-accent);
    box-shadow: 0 0 0 3px rgba(59, 109, 214, 0.1);
    background: var(--unsur-white);
}

/* --- Chat / Bimbingan Panel --- */
.chat-panel {
    height: 400px;
    overflow-y: auto;
    padding: 1rem;
}
.chat-message {
    display: flex;
    gap: 0.8rem;
    margin-bottom: 1rem;
}
.chat-message.sent {
    flex-direction: row-reverse;
}
.chat-avatar {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    font-weight: 700;
    color: white;
    flex-shrink: 0;
}
.chat-bubble {
    max-width: 70%;
    padding: 0.8rem 1rem;
    border-radius: var(--radius-md);
    font-size: 0.88rem;
    line-height: 1.5;
}
.chat-message:not(.sent) .chat-bubble {
    background: var(--unsur-gray-100);
    color: var(--unsur-gray-700);
}
.chat-message.sent .chat-bubble {
    background: var(--unsur-blue-accent);
    color: var(--unsur-white);
}
.chat-time {
    font-size: 0.7rem;
    color: var(--unsur-gray-400);
    margin-top: 0.3rem;
}
.chat-input-area {
    padding: 1rem;
    border-top: 1px solid var(--unsur-gray-200);
    display: flex;
    gap: 0.5rem;
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 991.98px) {
    .sidebar {
        transform: translateX(-100%);
    }
    .sidebar.show {
        transform: translateX(0);
    }
    .topbar {
        left: 0;
    }
    .main-content {
        margin-left: 0;
    }
    .hero-title {
        font-size: 2.5rem;
    }
    .hero-stats {
        gap: 1.5rem;
    }
    .hero-card-stack {
        display: none;
    }
}

@media (max-width: 767.98px) {
    .hero-title {
        font-size: 2rem;
    }
    .hero-subtitle {
        font-size: 1rem;
    }
    .hero-stats {
        flex-wrap: wrap;
        gap: 1rem;
    }
    .hero-stat h3 {
        font-size: 1.5rem;
    }
    .section-title {
        font-size: 1.6rem;
    }
    .login-left {
        display: none;
    }
    .sidebar-brand span {
        display: none;
    }
    .topbar-user-info {
        display: none;
    }
}

/* --- Overlay for mobile sidebar --- */
.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1025;
}
.sidebar-overlay.show {
    display: block;
}

/* --- Animation Utilities --- */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}
.animate-fadeInUp {
    animation: fadeInUp 0.5s ease forwards;
}
.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }

/* --- Page-specific adjustments --- */
.page-header {
    margin-bottom: 1.5rem;
}
.page-header h1 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.2rem;
}
.page-header p {
    color: var(--unsur-gray-500);
    font-size: 0.9rem;
    margin: 0;
}

/* Dosen Card */
.dosen-card {
    background: var(--unsur-white);
    border-radius: var(--radius-lg);
    border: 1px solid var(--unsur-gray-200);
    text-align: center;
    padding: 1.5rem;
    transition: all var(--transition-smooth);
    height: 100%;
}
.dosen-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}
.dosen-card .dosen-avatar {
    width: 70px;
    height: 70px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--unsur-blue-accent), var(--unsur-blue-medium));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    font-weight: 800;
    margin: 0 auto 1rem;
}
.dosen-card h5 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 0.3rem;
}
.dosen-card .dosen-nidn {
    font-size: 0.8rem;
    color: var(--unsur-gray-400);
    margin-bottom: 0.5rem;
}
.dosen-card .dosen-email {
    font-size: 0.82rem;
    color: var(--unsur-blue-accent);
}