/* Arifin ID - Elegant Luxury Styling */
:root {
    --primary: #00548d;
    --primary-dark: #003d66;
    --primary-light: #2c7ab3;
    --accent: #f68920;
    --accent-light: #ffa856;
    --accent-dark: #e57a10;
    --dark: #1a2a3a;
    --light: #f8f9fa;
    --gray: #6c757d;
    --white: #ffffff;
    --black: #000000;
    --shadow-sm: 0 4px 20px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 10px 30px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 20px 40px rgba(0, 0, 0, 0.15);
    --shadow-xl: 0 30px 60px rgba(0, 0, 0, 0.2);
    --transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    --transition-smooth: all 0.6s ease;
}

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

body {
    font-family: 'Roboto', sans-serif;
    font-size: 19px;
    background: var(--light);
    line-height: 1.6;
    color: var(--dark);
    overflow-x: hidden;
}

/* ========== STICKY MENU - TRANSPARENT GLASS WITH DARKER OVERLAY ========== */
.main-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 10000;
    background: rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.15);
    width: 100%;
    transition: var(--transition-smooth);
}

.main-header.scrolled {
    background: rgba(0, 84, 141, 0.92);
    backdrop-filter: blur(12px);
    box-shadow: var(--shadow-md);
    border-bottom-color: rgba(255, 255, 255, 0.25);
}

.main-header.scrolled .nav-links li a {
    text-shadow: none;
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 15px 32px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
}

/* Logo styling */
.logo-area {
    flex-shrink: 0;
}

.logo-home img {
    height: 48px;
    width: auto;
    filter: none;
    display: block;
    transition: var(--transition);
}

.logo-home:hover img {
    transform: scale(1.05);
}

/* Navigation Menu Desktop - with text shadow for better readability */
.nav-menu {
    flex-shrink: 0;
}

.nav-links {
    display: flex;
    gap: 2.5rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-links li a {
    color: var(--white);
    text-decoration: none;
    font-family: 'Poppins', sans-serif;
    font-weight: 500;
    font-size: 1rem;
    transition: var(--transition);
    padding: 8px 0;
    display: inline-block;
    position: relative;
    text-shadow: 0 2px 6px rgba(0, 0, 0, 0.25);
    letter-spacing: 0.3px;
}

.nav-links li a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: width 0.3s ease;
}

.nav-links li a:hover::after,
.nav-links li a.active::after {
    width: 100%;
}

.nav-links li a:hover {
    color: var(--accent);
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

/* Mobile specific elements */
.mobile-header-center {
    display: none;
}

.hamburger {
    display: none;
    cursor: pointer;
    color: var(--white);
    font-size: 28px;
    z-index: 10001;
    flex-shrink: 0;
    transition: var(--transition);
    text-shadow: 0 2px 6px rgba(0, 0, 0, 0.25);
}

.hamburger:hover {
    color: var(--accent);
    transform: scale(1.05);
}

/* Site Wrapper */
.site-wrapper {
    display: flex;
    justify-content: center;
    padding: 0 20px;
    background: linear-gradient(135deg, #e8f0f5 0%, #d4e0e8 100%);
    margin-top: 78px;
}

.container-box {
    max-width: 1200px;
    width: 100%;
    background: var(--white);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
    border-radius: 0;
}

/* Slideshow Section */
.slideshow-section {
    position: relative;
}

.slideshow-container {
    position: relative;
    width: 100%;
    overflow: hidden;
}

.slideshow-container::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 30%;
    background: linear-gradient(to top, rgba(0,0,0,0.3), transparent);
    pointer-events: none;
    z-index: 2;
}

.slide {
    display: none;
    width: 100%;
}

.slide img {
    width: 100%;
    height: auto;
    object-fit: cover;
    min-height: 400px;
    max-height: 80vh;
}

.fade {
    animation: fadeEffect 1.2s;
}

@keyframes fadeEffect {
    from {opacity: 0.4;}
    to {opacity: 1;}
}

.prev, .next {
    cursor: pointer;
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 50px;
    height: 50px;
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(4px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: white;
    font-size: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    z-index: 10;
    opacity: 0;
    transition: var(--transition);
    border-radius: 0;
}

.slideshow-container:hover .prev,
.slideshow-container:hover .next {
    opacity: 1;
}

.prev { left: 30px; }
.next { right: 30px; }

.prev:hover, .next:hover {
    background: var(--accent);
    border-color: var(--accent);
    transform: translateY(-50%) scale(1.05);
}

.slide-booking-btn {
    text-align: center;
    padding: 30px 20px;
    background: var(--white);
}

.booking-slide-btn {
    display: inline-block;
    background: transparent;
    border: 2px solid var(--accent);
    color: var(--accent);
    padding: 14px 40px;
    text-decoration: none;
    font-weight: 600;
    font-family: 'Poppins', sans-serif;
    transition: var(--transition);
    border-radius: 0;
    position: relative;
    overflow: hidden;
    z-index: 1;
    letter-spacing: 1px;
}

.booking-slide-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--accent);
    transition: all 0.4s ease;
    z-index: -1;
}

.booking-slide-btn:hover::before {
    left: 0;
}

.booking-slide-btn:hover {
    color: var(--white);
    transform: scale(1.02);
}

/* Courses Section */
.courses-section {
    padding: 30px 32px;
    background: var(--white);
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-family: 'Poppins', sans-serif;
    font-weight: 300;
    letter-spacing: 2px;
    color: var(--primary);
    margin-bottom: 60px;
    position: relative;
    display: inline-block;
    width: auto;
    left: 50%;
    transform: translateX(-50%);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 70px;
    height: 2px;
    background: var(--accent);
}

.courses-grid {
    display: flex;
    gap: 50px;
    justify-content: center;
    flex-wrap: wrap;
}

.course-card {
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    max-width: 350px;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    padding: 20px;
    position: relative;
}

.course-card:hover {
    transform: translateY(-12px);
    box-shadow: var(--shadow-lg);
}

.course-img-wrapper {
    width: 350px;
    height: 350px;
    overflow: hidden;
    border-radius: 0;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.course-card:hover .course-img-wrapper {
    box-shadow: var(--shadow-xl);
}

.course-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

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

.course-card h3 {
    margin-top: 25px;
    font-size: 1.8rem;
    color: var(--accent);
    font-family: 'Poppins', sans-serif;
    font-weight: 600;
    letter-spacing: 1px;
}

.course-subtitle {
    font-size: 0.9rem;
    color: var(--gray);
    margin-top: 5px;
    font-style: italic;
}

/* Guides section - SAME PARALLAX FIXED BACKGROUND AS FOOTER */
.guides-section {
    background-image: linear-gradient(rgba(0,0,0,0.65), rgba(0,0,0,0.75)), url('https://demoadventure.wordpresswebsitelatenmaken.my.id/imags/slide5.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    background-repeat: no-repeat;
    padding: 80px 32px;
    position: relative;
    z-index: 1;
}

.guides-carousel-container {
    max-width: 1100px;
    margin: 0 auto;
    overflow: hidden;
    position: relative;
}

.guides-track {
    display: flex;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.guide-slide {
    min-width: 100%;
    display: flex;
    gap: 40px;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(12px);
    padding: 40px;
    height: 500px;
    align-items: center;
    border-radius: 0;
    border: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow: var(--shadow-md);
}

.guide-img-col {
    width: 40%;
    height: 100%;
    overflow: hidden;
    border-radius: 0;
    box-shadow: var(--shadow-sm);
}

.guide-img-col img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.guide-slide:hover .guide-img-col img {
    transform: scale(1.02);
}

.guide-text-col {
    width: 60%;
    padding: 20px;
}

.guide-text-col h3 {
    font-size: 2rem;
    color: var(--primary);
    font-family: 'Poppins', sans-serif;
    font-weight: 600;
    margin-bottom: 20px;
    letter-spacing: 1px;
}

.guide-text-col p {
    font-size: 17px;
    line-height: 1.7;
    color: var(--dark);
}

.guides-controls {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 40px;
}

.guide-prev, .guide-next {
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(4px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    width: 52px;
    height: 52px;
    color: var(--white);
    cursor: pointer;
    transition: var(--transition);
    font-size: 22px;
    border-radius: 0;
}

.guide-prev:hover, .guide-next:hover {
    background: var(--accent);
    border-color: var(--accent);
    transform: scale(1.05);
}

/* Booking Form */
.booking-section {
    padding: 80px 32px;
    background: var(--white);
}

.booking-form {
    max-width: 900px;
    margin: 0 auto;
    background: rgba(255, 255, 255, 0.95);
    padding: 40px;
    box-shadow: var(--shadow-lg);
    border-radius: 0;
    border: 1px solid rgba(0, 84, 141, 0.08);
}

.form-row {
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
    margin-bottom: 24px;
}

.form-group {
    flex: 1;
    min-width: 200px;
}

.form-group label {
    display: block;
    margin-bottom: 10px;
    font-weight: 500;
    color: var(--primary);
    font-family: 'Poppins', sans-serif;
    font-size: 0.9rem;
    letter-spacing: 0.5px;
}

.form-group input, .form-group select, .form-group textarea {
    width: 100%;
    padding: 12px 0;
    border: none;
    border-bottom: 2px solid #e0e0e0;
    font-size: 16px;
    font-family: 'Roboto', sans-serif;
    transition: var(--transition);
    background: transparent;
}

.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
    outline: none;
    border-bottom-color: var(--accent);
}

.checkbox-group {
    display: flex;
    gap: 25px;
    margin-top: 10px;
}

.checkbox-group label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
}

.checkbox-group input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.btn-booking {
    background: transparent;
    border: 2px solid var(--accent);
    color: var(--accent);
    padding: 14px 28px;
    font-size: 18px;
    cursor: pointer;
    width: 100%;
    font-weight: 600;
    font-family: 'Poppins', sans-serif;
    transition: var(--transition);
    border-radius: 0;
    position: relative;
    overflow: hidden;
    z-index: 1;
    letter-spacing: 1px;
}

.btn-booking::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--accent);
    transition: all 0.4s ease;
    z-index: -1;
}

.btn-booking:hover::before {
    left: 0;
}

.btn-booking:hover {
    color: var(--white);
}

.form-message {
    margin-top: 25px;
    padding: 15px;
    text-align: center;
    border-radius: 0;
    font-weight: 500;
}

.form-message.success {
    background: rgba(40, 167, 69, 0.1);
    color: #28a745;
    border-left: 3px solid #28a745;
}

.form-message.error {
    background: rgba(220, 53, 69, 0.1);
    color: #dc3545;
    border-left: 3px solid #dc3545;
}

/* Hotline Footer - Parallax Fixed Background */
.hotline-footer {
    background-image: linear-gradient(rgba(0,0,0,0.65), rgba(0,0,0,0.75)), url('https://demoadventure.wordpresswebsitelatenmaken.my.id/imags/slide3.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    background-repeat: no-repeat;
    color: var(--white);
    padding: 70px 32px 50px;
    position: relative;
    z-index: 1;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 40px;
    max-width: 1200px;
    margin: 0 auto;
}

.footer-col h4 {
    font-family: 'Poppins', sans-serif;
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 20px;
    position: relative;
    display: inline-block;
}

.footer-col h4::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 40px;
    height: 2px;
    background: var(--accent);
}

.footer-col ul {
    list-style: none;
    padding: 0;
}

.footer-col ul li {
    margin-bottom: 12px;
}

.footer-col ul li a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: var(--transition);
    position: relative;
    display: inline-block;
}

.footer-col ul li a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--accent);
    transition: width 0.3s ease;
}

.footer-col ul li a:hover::after {
    width: 100%;
}

.footer-col ul li a:hover {
    color: var(--accent);
}

.footer-desc {
    margin: 15px 0;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.8);
}

.social-icons {
    margin-top: 20px;
}

.social-icons a {
    color: var(--white);
    margin-right: 20px;
    font-size: 22px;
    transition: var(--transition);
    display: inline-block;
}

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

.footer-col p {
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 12px;
    color: rgba(255, 255, 255, 0.8);
}

.footer-col p i {
    width: 24px;
    color: var(--accent);
}

/* Gallery Section */
.gallery-section {
    padding: 60px 20px;
    background: var(--white);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 20px;
}

.gallery-item {
    overflow: hidden;
    position: relative;
}

.gallery-item img {
    width: 100%;
    aspect-ratio: 1 / 1;
    object-fit: cover;
    transition: var(--transition);
}

.gallery-item:hover img {
    transform: scale(1.05);
}

/* Copyright */
.copyright {
    text-align: center;
    font-size: 12px;
    padding: 25px 20px;
    background: var(--primary-dark);
    color: rgba(255, 255, 255, 0.7);
    letter-spacing: 0.5px;
}

.copyright a {
    color: var(--accent);
    text-decoration: none;
    transition: var(--transition);
}

.copyright a:hover {
    text-decoration: underline;
}

/* Scroll to top */
.scroll-top {
    position: fixed;
    bottom: 40px;
    right: 40px;
    background: rgba(246, 137, 32, 0.9);
    backdrop-filter: blur(4px);
    color: var(--white);
    width: 52px;
    height: 52px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    cursor: pointer;
    display: none;
    font-size: 24px;
    z-index: 999;
    transition: var(--transition);
    border-radius: 0;
}

.scroll-top:hover {
    background: var(--accent);
    transform: translateY(-5px);
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(8px);
}

.modal-content {
    background: var(--white);
    margin: 10% auto;
    padding: 40px;
    width: 90%;
    max-width: 700px;
    position: relative;
    border-radius: 0;
    box-shadow: var(--shadow-xl);
}

.modal-content h1 {
    color: var(--primary);
    font-family: 'Poppins', sans-serif;
    font-weight: 600;
    margin-bottom: 20px;
}

.close-modal {
    position: absolute;
    right: 24px;
    top: 20px;
    font-size: 32px;
    cursor: pointer;
    transition: var(--transition);
    color: var(--gray);
}

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

/* Success Popup Styles */
.success-popup {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(8px);
    z-index: 20000;
    display: flex;
    align-items: center;
    justify-content: center;
    visibility: hidden;
    opacity: 0;
    transition: all 0.3s ease;
}

.success-popup.show {
    visibility: visible;
    opacity: 1;
}

.popup-content {
    max-width: 500px;
    width: 90%;
    background: #ffffff;
    padding: 40px 35px;
    text-align: center;
    position: relative;
    transform: scale(0.9);
    transition: transform 0.3s ease;
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.3);
    border-radius: 0;
}

.success-popup.show .popup-content {
    transform: scale(1);
}

.popup-icon {
    width: 80px;
    height: 80px;
    background: #f68920;
    border-radius: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 25px;
}

.popup-icon i {
    font-size: 48px;
    color: white;
}

.popup-content h2 {
    font-family: 'Poppins', sans-serif;
    font-size: 28px;
    color: #00548d;
    margin-bottom: 15px;
    font-weight: 600;
}

.popup-content p {
    font-size: 16px;
    color: #555;
    line-height: 1.6;
    margin-bottom: 10px;
}

.popup-content .highlight {
    color: #f68920;
    font-weight: 600;
}

.popup-hotline {
    background: #f8f9fa;
    padding: 15px;
    margin: 20px 0;
    border-left: 3px solid #f68920;
    text-align: left;
}

.popup-hotline p {
    margin-bottom: 8px;
    font-size: 14px;
}

.popup-hotline i {
    color: #f68920;
    width: 25px;
    margin-right: 8px;
}

.popup-buttons {
    display: flex;
    gap: 15px;
    justify-content: center;
    margin-top: 20px;
}

.popup-btn {
    padding: 12px 25px;
    font-family: 'Poppins', sans-serif;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
    font-size: 14px;
}

.popup-btn-primary {
    background: #00548d;
    color: white;
}

.popup-btn-primary:hover {
    background: #003d66;
}

.popup-btn-secondary {
    background: transparent;
    border: 2px solid #f68920;
    color: #f68920;
}

.popup-btn-secondary:hover {
    background: #f68920;
    color: white;
}

.close-popup {
    position: absolute;
    top: 15px;
    right: 20px;
    font-size: 28px;
    cursor: pointer;
    color: #999;
    transition: color 0.3s;
}

.close-popup:hover {
    color: #f68920;
}

/* Fade-in Animation */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: var(--transition-smooth);
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Loading Spinner */
.loading-spinner {
    width: 20px;
    height: 20px;
    border: 2px solid rgba(246, 137, 32, 0.3);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    display: inline-block;
    margin-right: 10px;
}

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

/* ========== MOBILE RESPONSIVE ========== */
@media (max-width: 992px) {
    .gallery-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    .guide-slide {
        flex-direction: column;
        height: auto;
        padding: 30px;
    }
    .guide-img-col, .guide-text-col {
        width: 100%;
    }
    .guide-img-col {
        height: 300px;
    }
}

@media (max-width: 768px) {
    .main-header {
        position: fixed;
        top: 0;
        background: rgba(0, 0, 0, 0.4);
    }
    
    .site-wrapper {
        margin-top: 70px;
    }
    
    .header-container {
        padding: 12px 20px;
        justify-content: space-between;
    }
    
    .logo-area {
        order: 1;
    }
    
    .logo-home img {
        height: 40px;
    }
    
    .mobile-header-center {
        display: block;
        order: 2;
        position: absolute;
        left: 50%;
        transform: translateX(-50%);
        text-align: center;
    }
    
    .mobile-courses-text {
        color: var(--white);
        font-family: 'Poppins', sans-serif;
        font-size: 13px;
        font-weight: 500;
        white-space: nowrap;
        letter-spacing: 0.5px;
        text-shadow: 0 2px 6px rgba(0, 0, 0, 0.25);
    }
    
    .hamburger {
        display: block;
        order: 3;
    }
    
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        width: 100%;
        background: rgba(0, 0, 0, 0.85);
        backdrop-filter: blur(12px);
        padding: 25px 20px;
        text-align: center;
        z-index: 10000;
        border-top: 1px solid rgba(255, 255, 255, 0.2);
    }
    
    .nav-menu.active {
        display: block;
    }
    
    .nav-links {
        flex-direction: column;
        gap: 1.2rem;
    }
    
    .nav-links li a {
        display: block;
        padding: 12px;
        font-size: 1.1rem;
        text-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
    }
    
    .courses-grid {
        flex-direction: column;
        align-items: center;
    }
    
    .course-img-wrapper {
        width: 280px;
        height: 280px;
    }
    
    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .form-row {
        flex-direction: column;
    }
    
    .booking-form {
        padding: 30px 20px;
    }
    
    /* Mobile: both sections use scroll background for performance */
    .guides-section,
    .hotline-footer {
        background-attachment: scroll;
    }
    
    .section-title {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .gallery-grid {
        grid-template-columns: 1fr;
    }
    .slide img {
        min-height: 250px;
    }
    .mobile-courses-text {
        font-size: 10px;
        white-space: normal;
        text-align: center;
        max-width: 130px;
    }
    .guide-slide {
        padding: 20px;
    }
    .guide-img-col {
        height: 220px;
    }
    .guide-text-col h3 {
        font-size: 1.5rem;
    }
    .footer-grid {
        gap: 30px;
    }
}

/* Support untuk browser yang tidak support fixed background */
@supports not (background-attachment: fixed) {
    .guides-section,
    .hotline-footer {
        background-attachment: scroll;
    }
}