/* =====================================================
   BAUK UNIMOF - PUBLIC STYLESHEET
   Elegant, Professional, Modern Design
   ===================================================== */

/* =====================================================
   CSS CUSTOM PROPERTIES (VARIABLES)
   ===================================================== */
:root {
    /* Primary Colors */
    --color-primary: #1a5276;
    --color-primary-light: #2980b9;
    --color-primary-dark: #0d2f4a;
    --color-primary-50: #e8f4f8;
    --color-primary-100: #b8dae8;
    
    /* Accent Colors */
    --color-accent: #e67e22;
    --color-accent-light: #f39c12;
    --color-accent-dark: #d35400;
    
    /* Green (Muhammadiyah) */
    --color-green: #27ae60;
    --color-green-light: #2ecc71;
    --color-green-dark: #1e8449;
    
    /* Neutral Colors */
    --color-bg: #f8f9fa;
    --color-bg-alt: #ffffff;
    --color-surface: #ffffff;
    --color-border: #e2e8f0;
    --color-border-light: #f1f5f9;
    
    /* Text Colors */
    --color-text: #1e293b;
    --color-text-secondary: #64748b;
    --color-text-muted: #94a3b8;
    --color-text-white: #ffffff;
    
    /* Semantic Colors */
    --color-success: #10b981;
    --color-warning: #f59e0b;
    --color-danger: #ef4444;
    --color-info: #3b82f6;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-heading: 'Playfair Display', Georgia, serif;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* =====================================================
   RESET & BASE
   ===================================================== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-primary);
    color: var(--color-text);
    background-color: var(--color-bg);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-primary-light);
}

ul, ol {
    list-style: none;
}

button {
    cursor: pointer;
    border: none;
    background: none;
    font-family: inherit;
}

input, textarea, select {
    font-family: inherit;
    font-size: inherit;
}

/* =====================================================
   LAYOUT UTILITIES
   ===================================================== */
.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.text-center { text-align: center; }
.text-right { text-align: right; }

/* =====================================================
   TOP BAR
   ===================================================== */
.top-bar {
    background: var(--color-primary-dark);
    color: var(--color-text-white);
    padding: var(--spacing-sm) 0;
    font-size: 0.85rem;
}

.top-bar-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.top-bar-left {
    display: flex;
    gap: var(--spacing-lg);
}

.top-bar-left span {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    opacity: 0.9;
}

.top-bar-left i {
    color: var(--color-accent);
}

.btn-login-top {
    color: var(--color-text-white) !important;
    background: rgba(255,255,255,0.1);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    transition: all var(--transition-fast);
}

.btn-login-top:hover {
    background: var(--color-accent);
    transform: translateY(-1px);
}

/* =====================================================
   HEADER & NAVBAR
   ===================================================== */
.main-header {
    background: var(--color-surface);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

.main-header.scrolled {
    box-shadow: var(--shadow-md);
    padding: 0;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) 0;
}

.navbar-brand a {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    color: var(--color-text) !important;
}

.logo-img {
    width: 50px;
    height: 50px;
    object-fit: contain;
}

.brand-text h1 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1.2;
}

.brand-text span {
    font-size: 0.75rem;
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.navbar-menu {
    display: flex;
    gap: var(--spacing-xs);
    align-items: center;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--color-text) !important;
    font-weight: 500;
    font-size: 0.95rem;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    position: relative;
}

.nav-link:hover {
    color: var(--color-primary) !important;
    background: var(--color-primary-50);
}

.nav-link.active {
    color: var(--color-primary) !important;
    background: var(--color-primary-50);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 3px;
    background: var(--color-accent);
    border-radius: var(--radius-full);
}

.nav-dropdown {
    position: relative;
}

.nav-dropdown .dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--color-surface);
    min-width: 220px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-sm);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all var(--transition-fast);
    z-index: 100;
}

.nav-dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu li a {
    display: block;
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--color-text) !important;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.dropdown-menu li a:hover {
    background: var(--color-primary-50);
    color: var(--color-primary) !important;
    padding-left: calc(var(--spacing-md) + 5px);
}

.navbar-toggler {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: var(--spacing-sm);
}

.toggler-icon {
    display: block;
    width: 25px;
    height: 2px;
    background: var(--color-text);
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
}

.toggler-icon::before,
.toggler-icon::after {
    content: '';
    display: block;
    width: 25px;
    height: 2px;
    background: var(--color-text);
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
}

/* =====================================================
   BUTTONS
   ===================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-weight: 600;
    font-size: 0.95rem;
    border-radius: var(--radius-lg);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-align: center;
    white-space: nowrap;
}

.btn-primary {
    background: var(--color-primary);
    color: var(--color-text-white) !important;
    border-color: var(--color-primary);
}

.btn-primary:hover {
    background: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-outline {
    background: transparent;
    color: var(--color-primary) !important;
    border-color: var(--color-primary);
}

.btn-outline:hover {
    background: var(--color-primary);
    color: var(--color-text-white) !important;
    transform: translateY(-2px);
}

.btn-white {
    background: var(--color-surface);
    color: var(--color-primary) !important;
    border-color: var(--color-surface);
}

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

.btn-outline-white {
    background: transparent;
    color: var(--color-text-white) !important;
    border-color: var(--color-text-white);
}

.btn-outline-white:hover {
    background: var(--color-text-white);
    color: var(--color-primary) !important;
}

.btn-lg {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1.05rem;
}

/* =====================================================
   HERO SECTION
   ===================================================== */
.hero-section {
    position: relative;
    min-height: 85vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 50%, var(--color-primary-light) 100%);
    overflow: hidden;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Ccircle cx='30' cy='30' r='2'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    width: 100%;
    padding: var(--spacing-3xl) 0;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: rgba(255,255,255,0.1);
    backdrop-filter: blur(10px);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-full);
    color: var(--color-text-white);
    font-size: 0.9rem;
    margin-bottom: var(--spacing-lg);
    border: 1px solid rgba(255,255,255,0.2);
}

.hero-title {
    font-family: var(--font-heading);
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    color: var(--color-text-white);
    line-height: 1.1;
    margin-bottom: var(--spacing-lg);
}

.hero-title .text-accent {
    color: var(--color-accent);
    position: relative;
}

.hero-subtitle {
    font-size: 1.15rem;
    color: rgba(255,255,255,0.85);
    max-width: 600px;
    line-height: 1.8;
    margin-bottom: var(--spacing-2xl);
}

.hero-actions {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.hero-wave {
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 100%;
    z-index: 3;
}

.hero-wave svg {
    display: block;
    width: 100%;
    height: auto;
}

/* =====================================================
   STATS SECTION
   ===================================================== */
.stats-section {
    position: relative;
    z-index: 4;
    margin-top: -60px;
    padding-bottom: var(--spacing-3xl);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--spacing-lg);
}

.stat-card {
    background: var(--color-surface);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    text-align: center;
    transition: all var(--transition-normal);
}

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

.stat-icon {
    width: 60px;
    height: 60px;
    background: var(--color-primary-50);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-md);
    font-size: 1.5rem;
    color: var(--color-primary);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--color-primary);
    line-height: 1;
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
}

/* =====================================================
   SECTIONS GENERAL
   ===================================================== */
.section {
    padding: var(--spacing-3xl) 0;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: var(--spacing-2xl);
    flex-wrap: wrap;
    gap: var(--spacing-lg);
}

.section-badge {
    display: inline-block;
    background: var(--color-primary-50);
    color: var(--color-primary);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.section-title {
    font-family: var(--font-heading);
    font-size: clamp(1.8rem, 3vw, 2.5rem);
    color: var(--color-text);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.section-subtitle {
    color: var(--color-text-secondary);
    font-size: 1.05rem;
    max-width: 600px;
}

/* =====================================================
   SAMBUTAN SECTION
   ===================================================== */
.sambutan-section {
    background: var(--color-surface);
}

.sambutan-content {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: var(--spacing-3xl);
    align-items: start;
}

.sambutan-image {
    text-align: center;
}

.sambutan-photo {
    width: 200px;
    height: 200px;
    border-radius: var(--radius-full);
    overflow: hidden;
    margin: 0 auto var(--spacing-lg);
    border: 5px solid var(--color-primary-50);
    box-shadow: var(--shadow-lg);
}

.photo-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--color-primary-50), var(--color-primary-100));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 5rem;
    color: var(--color-primary);
}

.sambutan-info h4 {
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: var(--spacing-xs);
}

.sambutan-info p {
    color: var(--color-text-secondary);
    font-size: 0.9rem;
}

.sambutan-text p {
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
    color: var(--color-text-secondary);
}

.sambutan-text em {
    color: var(--color-primary);
}

/* =====================================================
   SERVICES SECTION
   ===================================================== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
}

.service-card {
    background: var(--color-surface);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
    display: block;
    color: var(--color-text) !important;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-normal);
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

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

.service-icon {
    width: 70px;
    height: 70px;
    background: var(--color-primary-50);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    color: var(--color-primary);
    margin-bottom: var(--spacing-lg);
    transition: all var(--transition-normal);
}

.service-card:hover .service-icon {
    background: var(--color-primary);
    color: var(--color-text-white);
    transform: scale(1.1) rotate(-5deg);
}

.service-card h3 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

.service-card p {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
}

.service-link {
    color: var(--color-primary);
    font-weight: 600;
    font-size: 0.9rem;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    transition: all var(--transition-fast);
}

.service-card:hover .service-link {
    color: var(--color-accent);
    gap: var(--spacing-sm);
}

/* =====================================================
   NEWS SECTION
   ===================================================== */
.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-xl);
}

.news-card {
    background: var(--color-surface);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
}

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

.news-image {
    position: relative;
    height: 200px;
    overflow: hidden;
    background: var(--color-primary-50);
}

.news-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-normal);
}

.news-card:hover .news-image img {
    transform: scale(1.05);
}

.news-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: var(--color-primary-100);
}

.news-category {
    position: absolute;
    top: var(--spacing-md);
    left: var(--spacing-md);
    background: var(--color-accent);
    color: var(--color-text-white);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.news-body {
    padding: var(--spacing-lg);
}

.news-meta {
    display: flex;
    gap: var(--spacing-md);
    color: var(--color-text-muted);
    font-size: 0.85rem;
    margin-bottom: var(--spacing-sm);
}

.news-meta span {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.news-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    line-height: 1.4;
}

.news-title a {
    color: var(--color-text) !important;
    transition: color var(--transition-fast);
}

.news-title a:hover {
    color: var(--color-primary) !important;
}

.news-excerpt {
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
}

.news-read-more {
    color: var(--color-primary);
    font-weight: 600;
    font-size: 0.9rem;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    transition: all var(--transition-fast);
}

.news-read-more:hover {
    color: var(--color-accent);
    gap: var(--spacing-sm);
}

/* =====================================================
   CTA SECTION
   ===================================================== */
.cta-section {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    padding: var(--spacing-3xl) 0;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Ccircle cx='30' cy='30' r='2'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.cta-content {
    text-align: center;
    position: relative;
    z-index: 1;
    max-width: 700px;
    margin: 0 auto;
}

.cta-content h2 {
    font-family: var(--font-heading);
    font-size: 2.2rem;
    color: var(--color-text-white);
    margin-bottom: var(--spacing-md);
}

.cta-content p {
    color: rgba(255,255,255,0.85);
    font-size: 1.1rem;
    margin-bottom: var(--spacing-xl);
}

.cta-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

/* =====================================================
   FOOTER
   ===================================================== */
.main-footer {
    background: var(--color-primary-dark);
    color: rgba(255,255,255,0.8);
    padding: var(--spacing-3xl) 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.5fr;
    gap: var(--spacing-2xl);
    padding-bottom: var(--spacing-2xl);
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-brand h3 {
    color: var(--color-text-white);
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
}

.footer-brand p {
    font-size: 0.9rem;
    line-height: 1.7;
}

.footer-logo {
    width: 60px;
    height: 60px;
    margin-bottom: var(--spacing-md);
    filter: brightness(0) invert(1);
}

.footer-social {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-lg);
}

.footer-social a {
    width: 40px;
    height: 40px;
    background: rgba(255,255,255,0.1);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-white) !important;
    transition: all var(--transition-fast);
}

.footer-social a:hover {
    background: var(--color-accent);
    transform: translateY(-3px);
}

.footer-col h4 {
    color: var(--color-text-white);
    font-size: 1.1rem;
    margin-bottom: var(--spacing-lg);
    position: relative;
    padding-bottom: var(--spacing-sm);
}

.footer-col h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 30px;
    height: 2px;
    background: var(--color-accent);
}

.footer-col ul li {
    margin-bottom: var(--spacing-sm);
}

.footer-col ul li a {
    color: rgba(255,255,255,0.7) !important;
    font-size: 0.9rem;
    transition: all var(--transition-fast);
    display: inline-block;
}

.footer-col ul li a:hover {
    color: var(--color-accent) !important;
    transform: translateX(5px);
}

.contact-info li {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    font-size: 0.9rem;
}

.contact-info li i {
    color: var(--color-accent);
    margin-top: 3px;
    flex-shrink: 0;
}

.footer-bottom {
    text-align: center;
    padding: var(--spacing-lg) 0;
    font-size: 0.85rem;
    color: rgba(255,255,255,0.6);
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.text-danger { color: var(--color-danger) !important; }

/* =====================================================
   BACK TO TOP
   ===================================================== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--color-primary);
    color: var(--color-text-white);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--transition-normal);
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background: var(--color-accent);
    transform: translateY(-3px);
}

/* =====================================================
   FLASH MESSAGES
   ===================================================== */
.flash-message {
    position: fixed;
    top: 100px;
    right: 20px;
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    z-index: 9999;
    animation: slideIn 0.3s ease;
    max-width: 400px;
    box-shadow: var(--shadow-xl);
}

.flash-success {
    background: var(--color-success);
    color: white;
}

.flash-error {
    background: var(--color-danger);
    color: white;
}

.flash-close {
    color: white;
    font-size: 1.2rem;
    opacity: 0.8;
    margin-left: auto;
}

.flash-close:hover { opacity: 1; }

@keyframes slideIn {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

/* =====================================================
   EMPTY STATE
   ===================================================== */
.empty-state {
    text-align: center;
    padding: var(--spacing-3xl);
    color: var(--color-text-muted);
}

.empty-state i {
    font-size: 4rem;
    margin-bottom: var(--spacing-md);
    display: block;
}

/* =====================================================
   RESPONSIVE DESIGN
   ===================================================== */
@media (max-width: 1024px) {
    .sambutan-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .top-bar-left { display: none; }
    
    .navbar-toggler { display: flex; }
    
    .navbar-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 320px;
        height: 100vh;
        background: var(--color-surface);
        flex-direction: column;
        padding: var(--spacing-2xl);
        box-shadow: var(--shadow-xl);
        transition: right var(--transition-normal);
        z-index: 9999;
        align-items: flex-start;
        overflow-y: auto;
    }
    
    .navbar-menu.active {
        right: 0;
    }
    
    .nav-link {
        width: 100%;
        padding: var(--spacing-md);
    }
    
    .nav-dropdown .dropdown-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        padding-left: var(--spacing-md);
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .stats-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .news-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .cta-actions {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-actions {
        flex-direction: column;
    }
    
    .hero-actions .btn {
        width: 100%;
        justify-content: center;
    }
}

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

.animate-fadeInUp {
    animation: fadeInUp 0.6s ease forwards;
}

/* Print Styles */
@media print {
    .top-bar, .main-header, .main-footer, .back-to-top { display: none !important; }
    .main-content { margin: 0; }
}

/* ===== Tambahan: form, artikel, regulasi, kontak ===== */
.brand-badge{width:50px;height:50px;background:linear-gradient(135deg,var(--color-primary),var(--color-green));color:#fff;font-size:1.6rem;font-weight:800;display:flex;align-items:center;justify-content:center;border-radius:var(--radius-lg);}
.footer-logo.brand-badge{width:60px;height:60px;filter:none;}
.article-content{font-size:1.05rem;line-height:1.9;color:var(--color-text-secondary);}
.regulation-list{display:grid;gap:1rem;}
.regulation-item{display:flex;align-items:center;gap:1.25rem;background:var(--color-surface);padding:1.25rem 1.5rem;border-radius:var(--radius-xl);box-shadow:var(--shadow-md);}
.regulation-icon{width:55px;height:55px;background:var(--color-primary-50);color:var(--color-primary);border-radius:var(--radius-lg);display:flex;align-items:center;justify-content:center;font-size:1.5rem;flex-shrink:0;}
.regulation-info{flex:1;}
.regulation-info h3{font-size:1.05rem;margin-bottom:.25rem;}
.regulation-info p{font-size:.85rem;color:var(--color-text-muted);}
.contact-grid{display:grid;grid-template-columns:1fr 1.6fr;gap:2rem;}
.contact-info-card{background:var(--color-primary);color:#fff;padding:2rem;border-radius:var(--radius-xl);}
.contact-info-card h3{margin-bottom:1.25rem;}
.contact-info-card .contact-info li{color:rgba(255,255,255,.9);}
.contact-form{background:var(--color-surface);padding:2rem;border-radius:var(--radius-xl);box-shadow:var(--shadow-md);}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:1rem;}
.form-group{margin-bottom:1.25rem;}
.form-group label{display:block;font-weight:600;font-size:.9rem;margin-bottom:.5rem;}
.form-group input,.form-group textarea{width:100%;padding:.75rem 1rem;border:2px solid var(--color-border);border-radius:var(--radius-md);background:#f8fafc;transition:all .2s;}
.form-group input:focus,.form-group textarea:focus{outline:none;border-color:var(--color-primary);background:#fff;}
@media(max-width:768px){.contact-grid,.form-row{grid-template-columns:1fr;}.regulation-item{flex-direction:column;align-items:flex-start;}}