/* --- Variables & Reset --- */
:root {
    --bg: #ffffff;
    --fg: #1e293b;
    --muted: #aaacbd;
    --accent: #14b8a6;
    /* teal-500 */
    --accent-dark: #0d9488;
    /* teal-600 */
    --accent-light: #ccfbf1;
    /* teal-50 */
    --card: #ffffff;
    --border: #e2e8f0;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg);
    color: var(--fg);
    overflow-x: hidden;
}

.font-display {
    font-family: 'Montserrat', sans-serif;
}

/* ==========================================================================
   DYNAMIC HEADER (PROFESSIONAL TRANSPARENT TO SOLID)
   ========================================================================== */
#site-header {
    background-color: transparent;
    border-bottom: 1px solid rgba(255, 255, 255, 0.15);
    transition: background-color 0.4s ease, box-shadow 0.4s ease, border-color 0.4s ease, padding 0.4s ease;
}

#site-header .top-bar {
    max-height: 50px;
    opacity: 1;
    transition: all 0.4s ease;
    overflow: hidden;
}

/* --- Kondisi Awal (Transparan di atas Hero) --- */
#site-header .nav-link,
#site-header .top-bar a,
#site-header .top-bar span,
#site-header .mobile-btn {
    color: #ffffff;
    transition: color 0.3s ease;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

#site-header .nav-link:hover,
#site-header .mobile-btn:hover {
    color: var(--accent);
}

#site-header .logo-img {
    transition: filter 0.4s ease;
}

#site-header .btn-contact {
    background-color: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(4px);
    color: #ffffff;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

#site-header .btn-contact:hover {
    background-color: #ffffff;
    color: var(--accent-dark);
}

/* --- Kondisi Saat Di-scroll (Background Solid) --- */
#site-header.is-scrolled {
    background-color: rgba(255, 255, 255, 0.98) !important;
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    box-shadow: 0 4px 20px -10px rgba(0, 0, 0, 0.1);
}

#site-header.is-scrolled .top-bar {
    max-height: 0;
    padding-top: 0;
    padding-bottom: 0;
    opacity: 0;
    border-bottom: none;
}

#site-header.is-scrolled .nav-link,
#site-header.is-scrolled .mobile-btn {
    color: #1e293b !important;
    /* Warna teks jadi gelap */
    text-shadow: none !important;
}

#site-header.is-scrolled .nav-link:hover,
#site-header.is-scrolled .mobile-btn:hover {
    color: var(--accent-dark) !important;
}

#site-header.is-scrolled .nav-link::after {
    background-color: var(--accent-dark);
}

#site-header.is-scrolled .logo-img {
    filter: brightness(1) invert(0);
    /* Mengembalikan warna asli logo */
}

#site-header.is-scrolled .btn-contact {
    background-color: var(--accent-dark) !important;
    color: #ffffff !important;
    border-color: transparent !important;
    text-shadow: none !important;
}

#site-header.is-scrolled .btn-contact:hover {
    background-color: var(--accent) !important;
}

/* Dropdown Menu Overrides */
#site-header .dropdown-menu {
    border-top: 3px solid var(--accent);
}

#site-header .dropdown-link {
    color: #475569 !important;
    text-shadow: none !important;
}

#site-header .dropdown-link:hover {
    color: var(--accent-dark) !important;
    background-color: var(--accent-light) !important;
}

/* ==========================================================================
   GENERAL STYLES & ANIMATIONS
   ========================================================================== */
.bg-cool-gradient {
    background: linear-gradient(135deg, #11A578 0%, #147293 100%);
}

.bg-soft-ice {
    background: linear-gradient(to bottom, #ffffff, #f0f9ff);
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }

    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-10px);
    }
}

@keyframes scroll {
    0% {
        transform: translateX(0);
    }

    100% {
        transform: translateX(-50%);
    }
}

.animate-scroll {
    display: flex;
    width: 200%;
    animation: scroll 30s linear infinite;
}

.animate-scroll:hover {
    animation-play-state: paused;
}

.animate-slide-up {
    animation: slideUp 0.8s ease-out forwards;
}

.animate-scale-in {
    animation: scaleIn 0.5s ease-out forwards;
}

.animate-float {
    animation: float 3s ease-in-out infinite;
}

.stagger-1 {
    animation-delay: 0.1s;
}

.stagger-2 {
    animation-delay: 0.2s;
}

.stagger-3 {
    animation-delay: 0.3s;
}

.stagger-4 {
    animation-delay: 0.4s;
}

[data-reveal] {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

[data-reveal].revealed {
    opacity: 1;
    transform: translateY(0);
}

.btn-primary {
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    transition: left 0.5s ease;
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px -5px rgba(20, 184, 166, 0.4);
}

.service-card,
.product-card,
.facility-card {
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.service-card:hover,
.product-card:hover,
.facility-card:hover {
    transform: translateY(-8px);
}

.product-image {
    filter: grayscale(15%) contrast(1.05);
    transition: filter 0.5s ease;
}

.product-card:hover .product-image {
    filter: grayscale(0) contrast(1.1);
}

.gallery-item {
    transition: all 0.4s ease;
}

.gallery-item:hover {
    transform: scale(1.02);
}

.hero-pattern {
    background-image:
        linear-gradient(45deg, rgba(153, 246, 228, 0.05) 25%, transparent 25%, transparent 75%, rgba(153, 246, 228, 0.05) 75%, rgba(153, 246, 228, 0.05)),
        linear-gradient(45deg, rgba(153, 246, 228, 0.05) 25%, transparent 25%, transparent 75%, rgba(153, 246, 228, 0.05) 75%, rgba(153, 246, 228, 0.05));
    background-size: 20px 20px;
    background-position: 0 0, 10px 10px;
}

.geo-shape {
    position: absolute;
    pointer-events: none;
}

.geo-line {
    width: 1px;
    background: linear-gradient(to bottom, transparent, rgba(153, 246, 228, 0.4), transparent);
}

.geo-dot {
    width: 8px;
    height: 8px;
    background: var(--accent-dark);
    opacity: 0.3;
    box-shadow: 0 0 10px var(--accent);
}

.testimonial-track {
    display: flex;
    transition: transform 0.5s ease;
}

.process-step {
    transition: all 0.4s ease;
}

.process-step:hover {
    transform: translateX(10px);
}

::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--card);
}

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