/* =======================================
   Base & Reset
   ======================================= */
:root {
    --primary-color: #0F172A; /* Navy / Dark Blue */
    --primary-light: #1E293B;
    --accent-color: #F59E0B; /* Orange / Amber */
    --accent-hover: #D97706;
    --bg-light: #F8FAFC;
    --bg-white: #FFFFFF;
    --text-main: #334155;
    --text-muted: #64748B;
    --silver-light: #E2E8F0;
    --silver-dark: #94A3B8;
    
    --transition: all 0.3s ease-in-out;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.12), 0 1px 2px rgba(0,0,0,0.24);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -1px rgba(0,0,0,0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -2px rgba(0,0,0,0.05);
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 70px;
}

body {
    font-family: 'Inter', sans-serif;
    color: var(--text-main);
    line-height: 1.6;
    background-color: var(--bg-white);
    overflow-x: hidden;
}

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

ul {
    list-style: none;
}

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

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section-padding {
    padding: 80px 0;
}

.bg-light {
    background-color: var(--bg-light);
}

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

.mx-auto {
    margin-left: auto;
    margin-right: auto;
}

/* =======================================
   Typography & Utilities
   ======================================= */
h1, h2, h3, h4, h5, h6 {
    color: var(--primary-color);
    font-weight: 700;
    line-height: 1.3;
}

.section-title h2 {
    font-size: 2rem;
    margin-bottom: 10px;
}

.section-title .underline {
    height: 4px;
    width: 60px;
    background-color: var(--accent-color);
    margin-bottom: 20px;
    border-radius: 2px;
}

.section-title p {
    color: var(--text-muted);
    font-size: 1.1rem;
}

.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 6px;
    font-weight: 600;
    cursor: pointer;
    text-align: center;
    border: none;
    transition: var(--transition);
}

.btn-primary {
    background-color: var(--accent-color);
    color: #fff;
    box-shadow: var(--shadow-sm);
}

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

.btn-secondary {
    background-color: transparent;
    color: var(--bg-white);
    border: 2px solid var(--bg-white);
}

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

.btn-block {
    display: block;
    width: 100%;
}

.logo-img {
    height: 36px;
    width: auto;
    object-fit: contain;
}

/* =======================================
   Navbar
   ======================================= */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: var(--transition);
    padding: 15px 0;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary-color);
}

.logo i {
    color: var(--accent-color);
    font-size: 1.5rem;
}

.nav-menu ul {
    display: flex;
    gap: 30px;
}

.nav-link {
    font-weight: 500;
    color: var(--text-main);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--accent-color);
    transition: var(--transition);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-link:hover,
.nav-link.active {
    color: var(--accent-color);
}

.menu-toggle {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--primary-color);
}

/* =======================================
   Hero Section
   ======================================= */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    background: url('https://images.unsplash.com/photo-1541888062829-450f6d61f528?ixlib=rb-4.0.3&auto=format&fit=crop&w=1920&q=80') center/cover no-repeat;
    color: var(--bg-white);
    padding-top: 70px;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to right, rgba(15, 23, 42, 0.9), rgba(15, 23, 42, 0.6));
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
}

.hero h1 {
    font-size: 3.5rem;
    color: var(--bg-white);
    margin-bottom: 20px;
}

.hero h1 span {
    color: var(--accent-color);
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    color: var(--silver-light);
    max-width: 600px;
}

.hero-buttons {
    display: flex;
    gap: 15px;
}

/* =======================================
   Tentang Kami
   ======================================= */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

.about-text h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
}

.about-text p {
    margin-bottom: 15px;
}

.why-us-list {
    margin-top: 20px;
}

.why-us-list li {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
    font-weight: 500;
}

.why-us-list i {
    color: var(--accent-color);
    font-size: 1.1rem;
}

.about-partners h4 {
    margin-bottom: 20px;
    text-align: center;
    color: var(--text-muted);
}

.partner-logos {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.logo-box {
    background-color: var(--bg-white);
    border: 1px solid var(--silver-light);
    border-radius: 8px;
    padding: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    height: 80px;
}

.logo-box img {
    max-height: 100%;
    object-fit: contain;
    filter: grayscale(100%);
    opacity: 0.7;
    transition: var(--transition);
}

.logo-box:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--silver-dark);
}

.logo-box:hover img {
    filter: grayscale(0%);
    opacity: 1;
}

/* =======================================
   Layanan
   ======================================= */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.service-card {
    background-color: var(--bg-white);
    padding: 40px 30px;
    border-radius: 10px;
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: var(--transition);
    border-bottom: 4px solid transparent;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-bottom: 4px solid var(--accent-color);
}

.service-icon {
    font-size: 3rem;
    color: var(--primary-light);
    margin-bottom: 20px;
    transition: var(--transition);
}

.service-card:hover .service-icon {
    color: var(--accent-color);
}

.service-card h3 {
    margin-bottom: 15px;
    font-size: 1.25rem;
}

/* =======================================
   Galeri
   ======================================= */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
    margin-top: 40px;
}

.gallery-item {
    position: relative;
    border-radius: 8px;
    overflow: hidden;
    cursor: pointer;
    aspect-ratio: 4/3;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.gallery-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(15, 23, 42, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
}

.gallery-overlay i {
    color: var(--bg-white);
    font-size: 2rem;
    transform: scale(0);
    transition: transform 0.3s ease;
}

.gallery-item:hover img {
    transform: scale(1.1);
}

.gallery-item:hover .gallery-overlay {
    opacity: 1;
}

.gallery-item:hover .gallery-overlay i {
    transform: scale(1);
}

.gallery-placeholder {
    background-color: var(--silver-light);
    cursor: default;
    display: flex;
    align-items: center;
    justify-content: center;
}

.gallery-add-icon {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    color: var(--silver-dark);
    font-size: 0.9rem;
    text-align: center;
    padding: 20px;
}

.gallery-add-icon i {
    font-size: 2.5rem;
    color: var(--silver-dark);
}

.gallery-placeholder:hover .gallery-overlay {
    opacity: 0;
}

/* Lightbox Modal */
.lightbox {
    display: none;
    position: fixed;
    z-index: 9999;
    padding-top: 60px;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0,0,0,0.9);
}

.lightbox-content {
    margin: auto;
    display: block;
    max-width: 90%;
    max-height: 80vh;
    object-fit: contain;
    animation: zoom 0.3s;
}

@keyframes zoom {
    from {transform:scale(0.8); opacity: 0;}
    to {transform:scale(1); opacity: 1;}
}

.close-lightbox {
    position: absolute;
    top: 15px;
    right: 35px;
    color: #f1f1f1;
    font-size: 40px;
    font-weight: bold;
    cursor: pointer;
    transition: 0.3s;
}

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

/* =======================================
   Kontak
   ======================================= */
.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    margin-top: 40px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.info-item {
    display: flex;
    gap: 15px;
}

.info-icon {
    background-color: var(--primary-light);
    color: var(--bg-white);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.info-item h4 {
    margin-bottom: 5px;
}

.contact-link {
    color: var(--accent-color);
    font-weight: 600;
}

.contact-link:hover {
    text-decoration: underline;
}

.map-container {
    margin-top: 15px;
}

.contact-form {
    background-color: var(--bg-white);
    padding: 40px;
    border-radius: 10px;
    box-shadow: var(--shadow-md);
}

.contact-form h3 {
    margin-bottom: 10px;
}

.contact-form p {
    margin-bottom: 25px;
    color: var(--text-muted);
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--silver-light);
    border-radius: 6px;
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.2);
}

/* =======================================
   Footer
   ======================================= */
footer {
    background-color: var(--primary-color);
    color: var(--silver-light);
    padding-top: 60px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand h3 {
    color: var(--bg-white);
    margin-bottom: 15px;
}

.footer-links h4,
.footer-social h4 {
    color: var(--bg-white);
    margin-bottom: 20px;
    font-size: 1.1rem;
}

.footer-links ul li {
    margin-bottom: 10px;
}

.footer-links a:hover {
    color: var(--accent-color);
    padding-left: 5px;
}

.social-icons {
    display: flex;
    gap: 15px;
}

.social-icons a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: var(--primary-light);
    border-radius: 50%;
    color: var(--bg-white);
}

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

.footer-bottom {
    background-color: rgba(0,0,0,0.2);
    padding: 20px 0;
    text-align: center;
    font-size: 0.9rem;
}

/* =======================================
   Floating WhatsApp Button
   ======================================= */
.float-wa {
    position: fixed;
    width: 60px;
    height: 60px;
    bottom: 30px;
    right: 30px;
    background-color: #25d366;
    color: #FFF;
    border-radius: 50px;
    text-align: center;
    font-size: 30px;
    box-shadow: 2px 2px 10px rgba(0,0,0,0.2);
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.float-wa:hover {
    background-color: #1ebe57;
    transform: scale(1.1);
    color: #FFF;
}

.float-text {
    position: absolute;
    right: 70px;
    background-color: #fff;
    color: #333;
    padding: 5px 10px;
    border-radius: 5px;
    font-size: 14px;
    font-weight: 500;
    box-shadow: 0px 2px 5px rgba(0,0,0,0.2);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    white-space: nowrap;
}

.float-wa:hover .float-text {
    opacity: 1;
    visibility: visible;
}

/* =======================================
   Animations
   ======================================= */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

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

/* =======================================
   Responsive / Media Queries
   ======================================= */
@media screen and (max-width: 992px) {
    .hero h1 {
        font-size: 2.8rem;
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .partner-logos {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .contact-wrapper {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr;
    }
}

@media screen and (max-width: 768px) {
    .menu-toggle {
        display: block;
    }
    
    .nav-menu {
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: var(--bg-white);
        box-shadow: 0 5px 10px rgba(0,0,0,0.1);
        transform: translateY(-10px);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav-menu ul {
        flex-direction: column;
        gap: 0;
        padding: 10px 0;
    }
    
    .nav-menu li {
        width: 100%;
        text-align: center;
    }
    
    .nav-link {
        display: block;
        padding: 15px;
    }
    
    .nav-link::after {
        display: none;
    }
    
    .hero h1 {
        font-size: 2.2rem;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .partner-logos {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .social-icons {
        justify-content: center;
    }
    
    .float-wa {
        bottom: 20px;
        right: 20px;
        width: 50px;
        height: 50px;
        font-size: 25px;
    }
}