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

:root {
    --primary-black: #1a1a1a;
    --secondary-black: #2d2d2d;
    --accent-gold: #ffd700;
    --dark-gold: #b8860b;
    --light-gold: #fff8dc;
    --white: #ffffff;
    --gray-light: #f5f5f5;
    --gray-dark: #666666;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    --shadow-gold: 0 4px 20px rgba(255, 215, 0, 0.3);
    --gradient-gold: linear-gradient(135deg, #ffd700, #b8860b);
    --gradient-black: linear-gradient(135deg, #1a1a1a, #2d2d2d);
    --transition: all 0.3s ease;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--primary-black);
    background: linear-gradient(135deg, #f5f5f5 0%, #e8e8e8 100%);
    min-height: 100vh;
    overflow-x: hidden;
}

/* Animasi */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes pulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
    100% {
        transform: scale(1);
    }
}

@keyframes shimmer {
    0% {
        background-position: -200px 0;
    }
    100% {
        background-position: calc(200px + 100%) 0;
    }
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Header & Navbar */
.header {
    background: var(--gradient-black);
    color: var(--white);
    padding: 1rem 0;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
    animation: slideInLeft 0.8s ease-out;
    width: 100%;
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
}

.logo {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--accent-gold);
    text-decoration: none;
    transition: var(--transition);
    z-index: 1001;
}

.logo:hover {
    transform: scale(1.05);
    text-shadow: 0 0 10px var(--accent-gold);
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: var(--gradient-gold);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    color: var(--primary-black);
    animation: pulse 2s infinite;
}

/* Hamburger Menu */
.hamburger {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 21px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 1001;
    transition: var(--transition);
}

.hamburger:hover {
    transform: scale(1.1);
}

.hamburger span {
    width: 100%;
    height: 3px;
    background: var(--accent-gold);
    border-radius: 2px;
    transition: var(--transition);
    transform-origin: left center;
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(1px, -1px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
    transform: translateX(-10px);
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(1px, 1px);
}

/* Navigation Menu */
.nav-menu {
    display: flex;
    list-style: none;
    gap: 1.5rem;
    align-items: center;
    transition: var(--transition);
}

.nav-link {
    color: var(--white);
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 25px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    display: inline-block;
    white-space: nowrap;
}

.nav-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--gradient-gold);
    transition: left 0.3s ease;
    z-index: -1;
}

.nav-link:hover::before {
    left: 0;
}

.nav-link:hover {
    color: var(--primary-black);
    transform: translateY(-2px);
}

.nav-link.active {
    background: var(--gradient-gold);
    color: var(--primary-black);
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
    animation: fadeIn 0.5s ease-out;
}

/* Cards */
.card {
    background: var(--white);
    border-radius: 15px;
    padding: 2rem;
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
    transition: var(--transition);
    animation: fadeInUp 0.6s ease-out;
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-gold);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-gold);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--gray-light);
}

.card-title {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-black);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.card-title::before {
    content: '';
    width: 4px;
    height: 30px;
    background: var(--gradient-gold);
    border-radius: 2px;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 25px;
    text-decoration: none;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
    position: relative;
    overflow: hidden;
    white-space: nowrap;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: all 0.6s ease;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background: var(--gradient-gold);
    color: var(--primary-black);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-gold);
}

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

.btn-secondary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.btn-danger {
    background: linear-gradient(135deg, #dc3545, #c82333);
    color: var(--white);
}

.btn-success {
    background: linear-gradient(135deg, #28a745, #20c997);
    color: var(--white);
}

/* Forms */
.form-group {
    margin-bottom: 1.5rem;
    animation: fadeInUp 0.6s ease-out;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--primary-black);
}

.form-control {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    font-size: 1rem;
    transition: var(--transition);
    background: var(--white);
}

.form-control:focus {
    outline: none;
    border-color: var(--accent-gold);
    box-shadow: 0 0 0 3px rgba(255, 215, 0, 0.1);
    transform: translateY(-2px);
}

.form-control:hover {
    border-color: var(--dark-gold);
}

/* Tables */
.table-container {
    overflow-x: auto;
    border-radius: 15px;
    box-shadow: var(--shadow);
    animation: fadeInUp 0.8s ease-out;
    margin: 1rem 0;
    -webkit-overflow-scrolling: touch;
}

.table {
    width: 100%;
    border-collapse: collapse;
    background: var(--white);
    min-width: 600px;
}

.table th {
    background: var(--gradient-black);
    color: var(--white);
    padding: 1rem;
    text-align: left;
    font-weight: 600;
    position: relative;
    white-space: nowrap;
}

.table th::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient-gold);
}

.table td {
    padding: 1rem;
    border-bottom: 1px solid #e0e0e0;
    transition: var(--transition);
}

.table tr:hover td {
    background: var(--light-gold);
    transform: scale(1.01);
}

/* Stats Cards */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: var(--white);
    border-radius: 15px;
    padding: 2rem;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
    animation: fadeInUp 0.6s ease-out;
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-gold);
}

.stat-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: var(--shadow-gold);
}

.stat-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-gold);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-size: 1.5rem;
    color: var(--primary-black);
    animation: pulse 2s infinite;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: bold;
    color: var(--primary-black);
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--gray-dark);
    font-weight: 500;
}

/* Login Page */
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-black);
    padding: 2rem;
}

.login-card {
    background: var(--white);
    border-radius: 20px;
    padding: 3rem;
    box-shadow: var(--shadow-gold);
    max-width: 400px;
    width: 100%;
    animation: fadeInUp 0.8s ease-out;
    position: relative;
    overflow: hidden;
}

.login-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 6px;
    background: var(--gradient-gold);
}

.login-header {
    text-align: center;
    margin-bottom: 2rem;
}

.login-title {
    font-size: 2rem;
    font-weight: bold;
    color: var(--primary-black);
    margin-bottom: 0.5rem;
}

.login-subtitle {
    color: var(--gray-dark);
}

/* Alerts */
.alert {
    padding: 1rem 1.5rem;
    border-radius: 10px;
    margin-bottom: 1rem;
    animation: slideDown 0.3s ease-out;
}

.alert-success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.alert-error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.alert-info {
    background: #d1ecf1;
    color: #0c5460;
    border: 1px solid #bee5eb;
}

/* Loading Animation */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 215, 0, 0.3);
    border-radius: 50%;
    border-top-color: var(--accent-gold);
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* Responsive Design */
@media (max-width: 992px) {
    .header-container {
        padding: 0 1.5rem;
    }
    
    .nav-menu {
        gap: 1rem;
    }
    
    .nav-link {
        padding: 0.5rem 0.75rem;
        font-size: 0.95rem;
    }
}

@media (max-width: 768px) {
    .header-container {
        padding: 0 1rem;
    }
    
    /* Show hamburger menu */
    .hamburger {
        display: flex;
    }
    
    /* Hide nav menu by default on mobile */
    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        flex-direction: column;
        background: var(--gradient-black);
        padding: 2rem;
        box-shadow: var(--shadow);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        z-index: 999;
        gap: 1rem;
        align-items: flex-start;
        transition: transform 0.4s ease, opacity 0.4s ease;
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav-link {
        width: 100%;
        padding: 1rem;
        border-radius: 10px;
        font-size: 1.1rem;
        text-align: left;
    }
    
    .nav-link:hover {
        transform: translateX(5px);
    }
    
    .container {
        padding: 1.5rem;
    }
    
    .card {
        padding: 1.5rem;
        margin-bottom: 1.5rem;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .table-container {
        margin: 0.5rem 0;
        border-radius: 10px;
    }
    
    .table {
        min-width: 500px;
    }
    
    .table th,
    .table td {
        padding: 0.75rem;
    }
    
    .login-card {
        padding: 2rem;
        margin: 1rem;
    }
}

@media (max-width: 576px) {
    .header-container {
        padding: 0.5rem 1rem;
    }
    
    .logo {
        font-size: 1.2rem;
    }
    
    .logo-icon {
        width: 35px;
        height: 35px;
    }
    
    .hamburger {
        width: 25px;
        height: 18px;
    }
    
    .hamburger span {
        height: 2.5px;
    }
    
    .container {
        padding: 1rem;
    }
    
    .card {
        padding: 1.25rem;
        margin-bottom: 1.25rem;
    }
    
    .card-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
    
    .card-title {
        font-size: 1.3rem;
    }
    
    .btn {
        width: 100%;
        margin-bottom: 0.5rem;
        padding: 0.75rem;
    }
    
    .stat-card {
        padding: 1.5rem;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .stat-icon {
        width: 50px;
        height: 50px;
        font-size: 1.25rem;
    }
    
    .login-card {
        padding: 1.5rem;
    }
    
    .login-title {
        font-size: 1.5rem;
    }
    
    .form-control {
        padding: 0.65rem 0.85rem;
    }
}

@media (max-width: 480px) {
    .header {
        padding: 0.75rem 0;
    }
    
    .nav-menu {
        top: 65px;
        padding: 1.5rem;
    }
    
    .container {
        padding: 0.75rem;
    }
    
    .stats-grid {
        gap: 1rem;
    }
    
    .stat-card {
        padding: 1.25rem;
    }
    
    .table th,
    .table td {
        padding: 0.5rem;
        font-size: 0.9rem;
    }
    
    .alert {
        padding: 0.75rem 1rem;
        font-size: 0.9rem;
    }
}

/* Hover Effects */
.hover-lift {
    transition: var(--transition);
}

.hover-lift:hover {
    transform: translateY(-5px);
}

.hover-glow:hover {
    box-shadow: 0 0 20px rgba(255, 215, 0, 0.5);
}

/* Shimmer Effect */
.shimmer {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200px 100%;
    animation: shimmer 1.5s infinite;
}

/* Overlay untuk mobile menu */
.menu-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 998;
    opacity: 0;
    transition: opacity 0.3s ease;
}

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

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--gray-light);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: var(--gradient-gold);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--dark-gold);
}