/* ============================================================
   RONGDAFON — MAIN STYLESHEET v6.0 FINAL
   Design: Premium, Modern, Professional
   ============================================================ */

/* ============ VARIABEL ============ */
:root {
    --biru: #0066CC;
    --biru-dark: #004A99;
    --biru-deep: #003366;
    --biru-light: #3B8FE0;
    --biru-glow: rgba(0, 102, 204, 0.4);
    --putih: #FFFFFF;
    --hitam: #0A0A0A;
    --hitam-soft: #1A1A1A;
    --abu: #F4F6F9;
    --abu-dark: #E8ECF1;
    --text: #2C2C2C;
    --text-light: #666666;
    --transition-smooth: cubic-bezier(0.4, 0, 0.2, 1);
    --shadow-sm: 0 4px 15px rgba(0,0,0,0.06);
    --shadow-md: 0 10px 40px rgba(0,0,0,0.08);
    --shadow-lg: 0 25px 60px rgba(0,0,0,0.15);
    --shadow-biru: 0 20px 50px rgba(0,102,204,0.25);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
    font-family: 'Poppins', -apple-system, sans-serif;
    color: var(--text);
    background: var(--putih);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }

/* ============ ANIMASI ============ */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(50px); }
    to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeInLeft {
    from { opacity: 0; transform: translateX(-60px); }
    to { opacity: 1; transform: translateX(0); }
}
@keyframes fadeInRight {
    from { opacity: 0; transform: translateX(60px); }
    to { opacity: 1; transform: translateX(0); }
}
@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}
@keyframes floatReverse {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(20px); }
}
@keyframes pulse {
    0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 var(--biru-glow); }
    50% { transform: scale(1.05); box-shadow: 0 0 0 15px rgba(0,102,204,0); }
}
@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}
@keyframes rotateSlow {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}
@keyframes dotBlink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}
@keyframes meteorFall {
    0% { opacity: 0; transform: translate(0, 0) rotate(135deg); }
    10% { opacity: 1; }
    90% { opacity: 1; }
    100% { opacity: 0; transform: translate(-800px, 800px) rotate(135deg); }
}

/* ============ SCROLL REVEAL ============ */
.reveal {
    opacity: 0;
    transform: translateY(60px);
    transition: opacity 1s var(--transition-smooth), transform 1s var(--transition-smooth);
}
.reveal.active { opacity: 1; transform: translateY(0); }

.reveal-left {
    opacity: 0;
    transform: translateX(-80px);
    transition: opacity 1s var(--transition-smooth), transform 1s var(--transition-smooth);
}
.reveal-left.active { opacity: 1; transform: translateX(0); }

.reveal-right {
    opacity: 0;
    transform: translateX(80px);
    transition: opacity 1s var(--transition-smooth), transform 1s var(--transition-smooth);
}
.reveal-right.active { opacity: 1; transform: translateX(0); }

/* ============ NAVBAR ============ */
.navbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 2px 20px rgba(0,0,0,0.06);
    z-index: 1000;
    transition: all 0.4s var(--transition-smooth);
}
.navbar.scrolled {
    background: rgba(255,255,255,0.99);
    box-shadow: 0 4px 30px rgba(0,102,204,0.12);
}
.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 16px 25px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: padding 0.4s;
}
.navbar.scrolled .nav-container { padding: 12px 25px; }

.logo-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.45rem;
    font-weight: 800;
    letter-spacing: 1px;
    transition: transform 0.3s;
}
.logo-brand:hover { transform: scale(1.03); }
.logo-brand img { height: 42px; }
.logo-brand .brand-text {
    background: linear-gradient(135deg, var(--biru) 0%, var(--biru-dark) 50%, var(--hitam) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.logo-icon {
    width: 44px; height: 44px;
    background: linear-gradient(135deg, var(--biru) 0%, var(--biru-dark) 100%);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 900;
    font-size: 1.25rem;
    box-shadow: 0 6px 20px var(--biru-glow);
    transition: all 0.4s var(--transition-smooth);
    position: relative;
    overflow: hidden;
}
.logo-icon::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, transparent, rgba(255,255,255,0.3), transparent);
    transform: translateX(-100%);
    transition: transform 0.6s;
}
.logo-brand:hover .logo-icon::before { transform: translateX(100%); }
.logo-brand:hover .logo-icon {
    transform: rotate(-8deg) scale(1.08);
    box-shadow: 0 10px 30px var(--biru-glow);
}

.nav-menu {
    display: flex;
    gap: 30px;
    list-style: none;
    align-items: center;
}
.nav-menu a {
    font-weight: 500;
    font-size: 0.92rem;
    color: var(--hitam);
    position: relative;
    padding: 8px 0;
    transition: color 0.3s;
    letter-spacing: -0.2px;
}
.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0;
    width: 0; height: 3px;
    background: linear-gradient(90deg, var(--biru), var(--biru-dark));
    border-radius: 3px;
    transition: width 0.4s var(--transition-smooth);
}
.nav-menu a:hover { color: var(--biru); }
.nav-menu a:hover::after { width: 100%; }
.nav-menu a.active { color: var(--biru); font-weight: 700; }
.nav-menu a.active::after { width: 100%; }

.btn-nav {
    background: linear-gradient(135deg, var(--biru), var(--biru-dark)) !important;
    color: white !important;
    padding: 11px 26px !important;
    border-radius: 50px;
    font-weight: 600;
    box-shadow: 0 6px 20px var(--biru-glow);
    transition: all 0.4s var(--transition-smooth) !important;
    position: relative;
    overflow: hidden;
}
.btn-nav::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--biru-light), var(--biru));
    opacity: 0;
    transition: opacity 0.4s;
}
.btn-nav span, .btn-nav { position: relative; z-index: 1; }
.btn-nav:hover {
    transform: translateY(-3px) scale(1.03);
    box-shadow: 0 15px 40px var(--biru-glow);
}
.btn-nav:hover::before { opacity: 1; }
.btn-nav::after { display: none !important; }

/* ============ HERO ============ */
.hero {
    min-height: 100vh;
    background: linear-gradient(-45deg, #0A0A0A 0%, #003366 30%, #004A99 60%, #0A0A0A 100%);
    background-size: 400% 400%;
    animation: gradientShift 18s ease infinite;
    position: relative;
    display: flex;
    align-items: center;
    overflow: hidden;
    padding: 130px 25px 80px;
    isolation: isolate;
}
.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        radial-gradient(circle at 15% 25%, rgba(59,143,224,0.35) 0%, transparent 45%),
        radial-gradient(circle at 85% 75%, rgba(0,102,204,0.25) 0%, transparent 45%);
    z-index: 0;
}
.hero::after {
    content: '';
    position: absolute;
    inset: 0;
    background: repeating-linear-gradient(45deg, transparent, transparent 60px, rgba(255,255,255,0.015) 60px, rgba(255,255,255,0.015) 62px);
    z-index: 0;
}

/* ============ METEOR ============ */
.meteor-shower {
    position: absolute;
    inset: 0;
    overflow: hidden;
    pointer-events: none;
    z-index: 1;
}
.meteor {
    position: absolute;
    height: 2px;
    width: 150px;
    background: linear-gradient(90deg, rgba(255,255,255,0) 0%, rgba(107,182,255,0.4) 30%, rgba(200,225,255,0.8) 70%, #FFFFFF 100%);
    border-radius: 999px;
    filter: drop-shadow(0 0 5px #FFFFFF) drop-shadow(0 0 15px #6BB6FF);
    opacity: 0;
    top: 0;
    right: 0;
    animation: meteorFall 4s linear infinite;
}
.meteor::after {
    content: '';
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 6px;
    height: 6px;
    background: #FFFFFF;
    border-radius: 50%;
    box-shadow: 0 0 10px #FFFFFF, 0 0 20px #6BB6FF, 0 0 30px #3B8FE0;
}
.meteor:nth-child(1) { top: 5%;  right: 10%; animation-delay: 0s;   animation-duration: 3s;   width: 180px; }
.meteor:nth-child(2) { top: 15%; right: 30%; animation-delay: 0.8s; animation-duration: 3.5s; width: 120px; }
.meteor:nth-child(3) { top: 25%; right: 50%; animation-delay: 1.6s; animation-duration: 4s;   width: 200px; }
.meteor:nth-child(4) { top: 8%;  right: 0%;  animation-delay: 2.4s; animation-duration: 3.2s; width: 100px; }
.meteor:nth-child(5) { top: 20%; right: 70%; animation-delay: 3.2s; animation-duration: 3.8s; width: 150px; }
.meteor:nth-child(6) { top: 30%; right: 20%; animation-delay: 4s;   animation-duration: 3.3s; width: 130px; }
.meteor:nth-child(7) { top: 12%; right: 40%; animation-delay: 4.8s; animation-duration: 3.6s; width: 160px; }
.meteor:nth-child(8) { top: 35%; right: 60%; animation-delay: 5.6s; animation-duration: 3.4s; width: 140px; }

/* Layer z-index */
.hero-ring      { z-index: 1; }
.hero-particles { z-index: 2; }
.hero-content   { z-index: 3; }

.hero-particles {
    position: absolute;
    inset: 0;
    overflow: hidden;
    pointer-events: none;
}
.particle {
    position: absolute;
    background: rgba(255,255,255,0.6);
    border-radius: 50%;
    animation: float 10s infinite;
}
.hero-content {
    max-width: 1280px;
    margin: 0 auto;
    width: 100%;
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    gap: 70px;
    align-items: center;
}
.hero-text > * {
    opacity: 0;
    animation: fadeInUp 1s var(--transition-smooth) forwards;
}
.hero-text .badge { animation-delay: 0.2s; }
.hero-text h1 { animation-delay: 0.35s; }
.hero-text .hero-desc { animation-delay: 0.5s; }
.hero-text .hero-colors { animation-delay: 0.65s; }
.hero-text .hero-buttons { animation-delay: 0.8s; }
.hero-text .hero-stats { animation-delay: 0.95s; }

.hero-text .badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: rgba(255,255,255,0.1);
    backdrop-filter: blur(10px);
    color: white;
    padding: 10px 20px;
    border-radius: 50px;
    font-size: 0.83rem;
    font-weight: 500;
    margin-bottom: 25px;
    border: 1px solid rgba(255,255,255,0.18);
    letter-spacing: 0.3px;
}
.badge-dot {
    width: 8px;
    height: 8px;
    background: #10B981;
    border-radius: 50%;
    box-shadow: 0 0 0 4px rgba(16,185,129,0.2);
    animation: dotBlink 2s ease-in-out infinite;
}
.hero-text h1 {
    font-size: 4.2rem;
    color: white;
    line-height: 1.02;
    margin-bottom: 24px;
    font-weight: 900;
    letter-spacing: -2.5px;
}
.hero-text h1 span {
    background: linear-gradient(135deg, #FFFFFF 0%, #6BB6FF 50%, #FFFFFF 100%);
    background-size: 200% 200%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientShift 5s ease infinite;
    display: inline-block;
}
.hero-desc {
    color: rgba(255,255,255,0.78);
    font-size: 1.08rem;
    margin-bottom: 30px;
    max-width: 560px;
    line-height: 1.75;
}
.hero-colors {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 35px;
    padding: 12px 20px;
    background: rgba(255,255,255,0.06);
    backdrop-filter: blur(10px);
    border-radius: 50px;
    border: 1px solid rgba(255,255,255,0.1);
    width: fit-content;
}
.color-label {
    font-size: 0.8rem;
    color: rgba(255,255,255,0.75);
    font-weight: 500;
    letter-spacing: 0.3px;
}
.color-dots { display: flex; gap: 8px; }
.color-dot {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    border: 2px solid white;
    box-shadow: 0 4px 12px rgba(0,0,0,0.3);
    transition: transform 0.3s;
    cursor: pointer;
}
.color-dot:hover { transform: scale(1.2) translateY(-2px); }
.dot-biru { background: #0066CC; }
.dot-putih { background: #FFFFFF; }
.dot-hitam { background: #0A0A0A; }

.hero-buttons { display: flex; gap: 15px; flex-wrap: wrap; margin-bottom: 45px; }

.btn-primary {
    background: linear-gradient(135deg, #FFFFFF, #E8F0FA);
    color: var(--biru-dark);
    padding: 16px 36px;
    border-radius: 50px;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
    transition: all 0.4s var(--transition-smooth);
    border: none;
    cursor: pointer;
    font-size: 0.98rem;
    position: relative;
    overflow: hidden;
}
.btn-primary::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--biru), var(--biru-dark));
    transform: translateY(100%);
    transition: transform 0.4s var(--transition-smooth);
    z-index: 0;
}
.btn-primary > * { position: relative; z-index: 1; }
.btn-primary svg { transition: transform 0.4s var(--transition-smooth); }
.btn-primary:hover {
    color: white;
    transform: translateY(-4px);
    box-shadow: 0 20px 50px rgba(0,102,204,0.5);
}
.btn-primary:hover::before { transform: translateY(0); }
.btn-primary:hover svg { transform: translateX(6px); }

.btn-outline {
    background: transparent;
    color: white;
    padding: 16px 36px;
    border-radius: 50px;
    font-weight: 600;
    border: 2px solid rgba(255,255,255,0.35);
    transition: all 0.4s var(--transition-smooth);
    display: inline-flex;
    align-items: center;
    gap: 10px;
    position: relative;
    overflow: hidden;
    font-size: 0.98rem;
}
.btn-outline::before {
    content: '';
    position: absolute;
    inset: 0;
    background: white;
    transform: translateY(100%);
    transition: transform 0.4s var(--transition-smooth);
}
.btn-outline > * { position: relative; z-index: 1; }
.btn-outline:hover {
    color: var(--hitam);
    border-color: white;
    transform: translateY(-4px);
    box-shadow: 0 20px 40px rgba(255,255,255,0.25);
}
.btn-outline:hover::before { transform: translateY(0); }

.hero-stats {
    display: flex;
    align-items: center;
    gap: 25px;
    padding: 20px 0;
    border-top: 1px solid rgba(255,255,255,0.1);
    max-width: 500px;
}
.stat-item { display: flex; flex-direction: column; gap: 2px; }
.stat-num {
    font-size: 1.7rem;
    font-weight: 800;
    color: white;
    letter-spacing: -1px;
    line-height: 1;
}
.stat-label {
    font-size: 0.75rem;
    color: rgba(255,255,255,0.6);
    font-weight: 500;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}
.stat-divider {
    width: 1px;
    height: 35px;
    background: rgba(255,255,255,0.15);
}

/* ============ HERO VISUAL — GLASSMORPHISM ============ */
.hero-visual {
    position: relative;
    height: 520px;
    display: block !important;
    visibility: visible !important;
    opacity: 1 !important;
}
.hero-card {
    position: absolute;
    border-radius: 28px;
    overflow: hidden;
    transition: all 0.6s var(--transition-smooth);
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.35);
    box-shadow: 
        0 8px 32px rgba(0, 0, 0, 0.25),
        inset 0 1px 0 rgba(255, 255, 255, 0.6);
    display: block !important;
    visibility: visible !important;
    opacity: 1 !important;
}
.hero-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.4) 0%, rgba(255, 255, 255, 0.05) 50%, rgba(255, 255, 255, 0.2) 100%);
    pointer-events: none;
    z-index: 1;
}
.hero-card img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    padding: 20px;
    position: relative;
    z-index: 2;
    filter: drop-shadow(0 10px 20px rgba(0, 0, 0, 0.3));
}
.hero-card-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 5rem;
    opacity: 0.5;
    color: white;
    position: relative;
    z-index: 2;
}
.hero-card:nth-child(1) {
    top: 0;
    right: 0;
    width: 72%;
    height: 72%;
    animation: float 7s ease-in-out infinite;
}
.hero-card:nth-child(2) {
    bottom: 0;
    left: 0;
    width: 62%;
    height: 55%;
    animation: floatReverse 7s ease-in-out infinite;
    animation-delay: 1s;
}
.hero-card:hover {
    transform: scale(1.05) rotate(2deg) !important;
    z-index: 10;
    background: rgba(255, 255, 255, 0.25);
    border-color: rgba(255, 255, 255, 0.5);
    box-shadow: 
        0 20px 60px rgba(0, 102, 204, 0.4),
        inset 0 1px 0 rgba(255, 255, 255, 0.7);
}

/* ============ SECTION GENERAL ============ */
.section { padding: 120px 25px; position: relative; }
.container { max-width: 1280px; margin: 0 auto; }

.section-header {
    text-align: center;
    margin-bottom: 70px;
}
.section-header .subtitle {
    color: var(--biru);
    font-weight: 700;
    font-size: 0.82rem;
    letter-spacing: 5px;
    text-transform: uppercase;
    display: inline-block;
    margin-bottom: 15px;
    position: relative;
    padding: 0 55px;
}
.section-header .subtitle::before,
.section-header .subtitle::after {
    content: '';
    position: absolute;
    top: 50%;
    width: 40px;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--biru));
}
.section-header .subtitle::before { left: 0; }
.section-header .subtitle::after { right: 0; transform: scaleX(-1); }
.section-header h2 {
    font-size: 3.2rem;
    font-weight: 800;
    color: var(--hitam);
    margin-bottom: 18px;
    letter-spacing: -1.8px;
    line-height: 1.1;
}
.section-header h2 span {
    background: linear-gradient(135deg, var(--biru), var(--biru-dark) 70%, var(--hitam));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.section-header p {
    color: var(--text-light);
    max-width: 640px;
    margin: 0 auto;
    font-size: 1.05rem;
    line-height: 1.7;
}

/* ============ ABOUT ============ */
.section-about { background: white; }
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}
.about-image {
    position: relative;
    border-radius: 30px;
    overflow: hidden;
    box-shadow: 0 40px 80px rgba(0,0,0,0.18);
    background: linear-gradient(135deg, #0066CC, #004A99);
    min-height: 520px;
    transition: transform 0.6s var(--transition-smooth);
}
.about-placeholder {
    width: 100%;
    height: 520px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 8rem;
    opacity: 0.4;
}
.about-image img { width: 100%; height: 520px; object-fit: cover; }
.about-image::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, transparent 40%, rgba(0,102,204,0.35));
    z-index: 1;
    opacity: 0;
    transition: opacity 0.6s;
}
.about-image:hover { transform: scale(1.015); }
.about-image:hover::before { opacity: 1; }
.about-image::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 45%, rgba(10,10,10,0.55));
}
.about-badge {
    position: absolute;
    bottom: 30px; left: 30px;
    background: rgba(255,255,255,0.98);
    backdrop-filter: blur(10px);
    padding: 20px 32px;
    border-radius: 20px;
    z-index: 2;
    box-shadow: 0 15px 40px rgba(0,0,0,0.3);
    border-left: 5px solid var(--biru);
    animation: float 5s ease-in-out infinite;
}
.about-badge strong {
    color: var(--biru);
    font-size: 2rem;
    display: block;
    line-height: 1;
    margin-bottom: 5px;
    letter-spacing: -1px;
}
.about-badge span { color: var(--text-light); font-size: 0.82rem; font-weight: 500; }
.about-image .deco-circle {
    position: absolute;
    width: 120px; height: 120px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--biru), var(--biru-light));
    top: -40px; right: -40px;
    z-index: 3;
    box-shadow: 0 20px 40px var(--biru-glow);
    animation: float 4s ease-in-out infinite;
}
.about-content h3 {
    font-size: 2.3rem;
    margin-bottom: 22px;
    color: var(--hitam);
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -1px;
}
.about-content > p { color: var(--text-light); margin-bottom: 30px; font-size: 1.05rem; line-height: 1.75; }

.about-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-top: 15px;
}
.feature-item {
    display: flex;
    gap: 15px;
    align-items: start;
    padding: 20px;
    background: var(--abu);
    border-radius: 16px;
    border-left: 4px solid var(--biru);
    transition: all 0.4s var(--transition-smooth);
    cursor: pointer;
}
.feature-item:hover {
    background: white;
    transform: translateY(-5px);
    box-shadow: var(--shadow-biru);
    border-left-width: 6px;
}
.feature-item .icon {
    width: 48px; height: 48px;
    background: linear-gradient(135deg, var(--biru), var(--biru-dark));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    flex-shrink: 0;
    font-size: 1.2rem;
    transition: transform 0.4s;
    box-shadow: 0 6px 15px var(--biru-glow);
}
.feature-item:hover .icon { transform: rotate(-10deg) scale(1.08); }
.feature-item h4 { font-size: 0.95rem; margin-bottom: 4px; font-weight: 700; color: var(--hitam); }
.feature-item p { font-size: 0.82rem; color: var(--text-light); margin: 0; }

/* ============ KEUNGGULAN ============ */
.section-keunggulan {
    background: linear-gradient(135deg, #FFFFFF 0%, #F0F7FF 50%, #FFFFFF 100%);
    padding: 110px 25px 90px;
    position: relative;
    overflow: hidden;
}
.section-keunggulan::before {
    content: '';
    position: absolute;
    top: -50%; right: -20%;
    width: 700px; height: 700px;
    background: linear-gradient(135deg, rgba(0,102,204,0.08), rgba(0,102,204,0.02));
    transform: rotate(45deg);
    border-radius: 100px;
}
.section-keunggulan::after {
    content: '';
    position: absolute;
    bottom: -30%; left: -10%;
    width: 500px; height: 500px;
    background: linear-gradient(135deg, rgba(0,74,153,0.06), rgba(0,102,204,0.1));
    transform: rotate(-30deg);
    border-radius: 80px;
}
.section-keunggulan .container { position: relative; z-index: 2; }
.keunggulan-header { text-align: center; margin-bottom: 70px; }
.keunggulan-label {
    display: inline-block;
    background: linear-gradient(135deg, var(--biru), var(--biru-dark));
    color: white;
    padding: 8px 26px;
    border-radius: 6px;
    font-size: 0.72rem;
    font-weight: 800;
    letter-spacing: 4px;
    margin-bottom: 25px;
    box-shadow: 0 8px 20px var(--biru-glow);
    position: relative;
}
.keunggulan-label::after {
    content: '';
    position: absolute;
    bottom: -8px; left: 50%;
    transform: translateX(-50%);
    width: 0; height: 0;
    border-left: 8px solid transparent;
    border-right: 8px solid transparent;
    border-top: 8px solid var(--biru-dark);
}
.keunggulan-title {
    font-size: 4.2rem;
    font-weight: 900;
    color: var(--hitam);
    line-height: 0.95;
    letter-spacing: -3px;
    margin-bottom: 25px;
    text-transform: uppercase;
}
.keunggulan-title span {
    background: linear-gradient(135deg, var(--biru) 0%, var(--biru-dark) 50%, var(--hitam) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline-block;
    position: relative;
}
.keunggulan-title span::after {
    content: '';
    position: absolute;
    bottom: 8px; left: 0;
    width: 100%; height: 8px;
    background: linear-gradient(90deg, var(--biru), var(--biru-light));
    opacity: 0.25;
    z-index: -1;
    border-radius: 4px;
}
.keunggulan-tagline {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    flex-wrap: wrap;
    font-size: 1.05rem;
    color: var(--biru-dark);
    font-weight: 500;
}
.keunggulan-tagline .dot-sep {
    color: var(--biru);
    font-size: 1.5rem;
    line-height: 0;
}
.keunggulan-icons {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 25px;
    max-width: 1050px;
    margin: 0 auto 60px;
}
.keunggulan-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
    text-align: center;
    transition: transform 0.5s var(--transition-smooth);
}
.keunggulan-item:hover { transform: translateY(-15px); }
.icon-circle {
    width: 110px; height: 110px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--biru) 0%, var(--biru-dark) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    box-shadow: 0 20px 45px rgba(0,102,204,0.3), inset 0 -4px 10px rgba(0,0,0,0.15), inset 0 4px 10px rgba(255,255,255,0.2);
    position: relative;
    transition: all 0.5s var(--transition-smooth);
}
.icon-circle::before {
    content: '';
    position: absolute;
    inset: -8px;
    border: 3px solid var(--biru);
    border-radius: 50%;
    opacity: 0.25;
    transition: all 0.5s;
}
.icon-circle::after {
    content: '';
    position: absolute;
    top: 15%; left: 20%;
    width: 30%; height: 30%;
    background: radial-gradient(circle, rgba(255,255,255,0.6), transparent);
    border-radius: 50%;
    opacity: 0.7;
}
.icon-circle svg {
    width: 48px; height: 48px;
    stroke-linecap: round;
    stroke-linejoin: round;
    filter: drop-shadow(0 2px 4px rgba(0,0,0,0.2));
    transition: transform 0.5s var(--transition-smooth);
    position: relative;
    z-index: 2;
}
.keunggulan-item:hover .icon-circle {
    transform: scale(1.12) rotate(-5deg);
    box-shadow: 0 30px 60px rgba(0,102,204,0.5), inset 0 -4px 10px rgba(0,0,0,0.15), inset 0 4px 10px rgba(255,255,255,0.2);
}
.keunggulan-item:hover .icon-circle::before {
    inset: -14px;
    opacity: 0.5;
    border-width: 2px;
}
.keunggulan-item:hover .icon-circle svg { transform: scale(1.15); }
.keunggulan-item h4 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--hitam);
    line-height: 1.2;
    transition: color 0.3s;
}
.keunggulan-item:hover h4 { color: var(--biru); }
.keunggulan-footer {
    text-align: center;
    margin-top: 30px;
    padding-top: 30px;
    border-top: 2px dashed rgba(0,102,204,0.2);
}
.keunggulan-footer p {
    font-size: 1.15rem;
    color: var(--hitam);
    font-weight: 500;
    letter-spacing: 0.3px;
    position: relative;
    display: inline-block;
    padding: 0 35px;
}
.keunggulan-footer p::before,
.keunggulan-footer p::after {
    content: '';
    position: absolute;
    top: 50%;
    width: 20px; height: 20px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--biru), var(--biru-dark));
    transform: translateY(-50%);
    box-shadow: 0 4px 10px var(--biru-glow);
}
.keunggulan-footer p::before { left: -5px; }
.keunggulan-footer p::after { right: -5px; }

/* ============ KATEGORI ============ */
.section-kategori { background: white; padding: 110px 25px; }
.kategori-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    max-width: 950px;
    margin: 0 auto;
}
.kategori-card {
    position: relative;
    background: white;
    border: 2px solid #E5E5E5;
    border-radius: 26px;
    padding: 45px 40px;
    display: flex;
    flex-direction: column;
    gap: 22px;
    overflow: hidden;
    transition: all 0.5s var(--transition-smooth);
}
.kategori-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 5px;
    background: linear-gradient(90deg, var(--biru), var(--biru-dark));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.5s var(--transition-smooth);
}
.kategori-card:hover {
    border-color: var(--biru);
    transform: translateY(-12px);
    box-shadow: 0 35px 70px rgba(0,102,204,0.2);
}
.kategori-card:hover::before { transform: scaleX(1); }
.kategori-icon {
    width: 85px; height: 85px;
    background: linear-gradient(135deg, var(--biru), var(--biru-dark));
    border-radius: 22px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.3rem;
    box-shadow: 0 15px 35px var(--biru-glow);
    transition: all 0.5s var(--transition-smooth);
    position: relative;
    z-index: 2;
}
.kategori-card:hover .kategori-icon {
    transform: rotate(-8deg) scale(1.1);
    box-shadow: 0 25px 50px rgba(0,102,204,0.5);
}
.kategori-content { position: relative; z-index: 2; }
.kategori-content h3 {
    font-size: 1.7rem;
    font-weight: 800;
    color: var(--hitam);
    margin-bottom: 10px;
    transition: color 0.3s;
    letter-spacing: -0.6px;
}
.kategori-card:hover .kategori-content h3 { color: var(--biru); }
.kategori-content p {
    color: var(--text-light);
    font-size: 0.95rem;
    line-height: 1.65;
    margin-bottom: 22px;
}
.kategori-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 22px;
    border-top: 1px dashed #E5E5E5;
}
.kategori-count {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--biru);
    background: rgba(0,102,204,0.08);
    padding: 6px 16px;
    border-radius: 50px;
}
.kategori-arrow {
    font-size: 1.5rem;
    color: var(--biru);
    font-weight: 700;
    transition: transform 0.4s var(--transition-smooth);
}
.kategori-card:hover .kategori-arrow { transform: translateX(10px); }
.kategori-bg-deco {
    position: absolute;
    bottom: -50px; right: -50px;
    width: 180px; height: 180px;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(0,102,204,0.08), rgba(0,102,204,0.02));
    transition: transform 0.6s var(--transition-smooth);
}
.kategori-card:hover .kategori-bg-deco { transform: scale(1.6); }

/* ============ PRODUK ============ */
.section-produk {
    background: linear-gradient(180deg, var(--abu) 0%, #FFFFFF 100%);
    position: relative;
    overflow: hidden;
}
.section-produk::before {
    content: '';
    position: absolute;
    width: 600px; height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(0,102,204,0.08), transparent 70%);
    top: -300px; right: -300px;
}
.section-produk .container { position: relative; z-index: 2; }

.produk-filter {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 50px;
}
.filter-tab {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    background: white;
    border: 2px solid #E5E5E5;
    border-radius: 50px;
    font-family: inherit;
    font-size: 0.9rem;
    font-weight: 600;
    color: #333;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.4,0,0.2,1);
}
.filter-tab:hover {
    border-color: var(--biru);
    color: var(--biru);
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0,102,204,0.15);
}
.filter-tab.active {
    background: linear-gradient(135deg, var(--biru), var(--biru-dark));
    color: white;
    border-color: transparent;
    box-shadow: 0 10px 25px var(--biru-glow);
}
.filter-count {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 24px;
    height: 22px;
    padding: 0 8px;
    background: rgba(0,102,204,0.12);
    color: var(--biru);
    border-radius: 50px;
    font-size: 0.72rem;
    font-weight: 800;
    line-height: 1;
}
.filter-tab.active .filter-count {
    background: rgba(255,255,255,0.25);
    color: white;
}

.produk-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
    gap: 30px;
}
.produk-card {
    background: white;
    border-radius: 24px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all 0.5s var(--transition-smooth);
    border: 2px solid transparent;
    position: relative;
    display: flex;
    flex-direction: column;
}
.produk-card:hover {
    transform: translateY(-15px);
    box-shadow: 0 35px 70px rgba(0,102,204,0.28);
    border-color: var(--biru);
}
.produk-img {
    height: 240px;
    background: linear-gradient(135deg, var(--biru), var(--hitam));
    position: relative;
    overflow: hidden;
}
.produk-img img {
    width: 100%; height: 100%;
    object-fit: cover;
    transition: transform 0.7s var(--transition-smooth);
}
.produk-card:hover .produk-img img { transform: scale(1.15) rotate(1.5deg); }
.produk-img-placeholder {
    width: 100%; height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    opacity: 0.4;
    color: white;
}
.produk-badge {
    position: absolute;
    top: 15px; right: 15px;
    background: linear-gradient(135deg, #FFB800, #FF8C00);
    color: white;
    padding: 6px 16px;
    border-radius: 50px;
    font-size: 0.68rem;
    font-weight: 800;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    box-shadow: 0 6px 20px rgba(255,184,0,0.5);
    animation: pulse 2.5s ease-in-out infinite;
    z-index: 2;
}
.produk-cat-badge {
    position: absolute;
    top: 15px;
    left: 15px;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(10px);
    color: var(--biru);
    padding: 6px 14px;
    border-radius: 50px;
    font-size: 0.68rem;
    font-weight: 800;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    box-shadow: 0 6px 20px rgba(0,0,0,0.15);
    z-index: 2;
}
.produk-info {
    padding: 26px;
    position: relative;
    z-index: 2;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.produk-kategori {
    display: inline-block;
    align-self: flex-start;
    font-size: 0.68rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--biru);
    background: rgba(0,102,204,0.1);
    padding: 4px 12px;
    border-radius: 50px;
}
.produk-info h3 {
    font-size: 1.15rem;
    color: var(--hitam);
    font-weight: 700;
    line-height: 1.35;
    letter-spacing: -0.3px;
    transition: color 0.3s;
}
.produk-card:hover .produk-info h3 { color: var(--biru); }
.produk-info h3 a { color: inherit; transition: color 0.3s; }
.produk-info h3 a:hover { color: var(--biru); }
.produk-info > p {
    color: var(--text-light);
    font-size: 0.88rem;
    line-height: 1.6;
    margin: 0;
}
.produk-specs {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 14px 0;
    border-top: 1px dashed #E8E8E8;
    border-bottom: 1px dashed #E8E8E8;
}
.spec-item {
    display: flex;
    align-items: center;
    gap: 10px;
}
.spec-icon {
    width: 32px;
    height: 32px;
    border-radius: 9px;
    background: linear-gradient(135deg, rgba(0,102,204,0.1), rgba(0,102,204,0.05));
    border: 1px solid rgba(0,102,204,0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    flex-shrink: 0;
}
.spec-text {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex: 1;
    gap: 8px;
    font-size: 0.82rem;
    color: #0A0A0A;
    font-weight: 700;
}
.produk-harga {
    color: var(--biru);
    font-weight: 800;
    font-size: 1.4rem;
    margin-top: auto;
    padding-top: 8px;
    display: flex;
    align-items: baseline;
    gap: 4px;
    letter-spacing: -0.5px;
}
.produk-harga small { color: #999; font-weight: 400; font-size: 0.78rem; }
.btn-produk {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: linear-gradient(135deg, var(--biru), var(--biru-dark));
    color: white;
    padding: 12px 20px;
    border-radius: 12px;
    font-size: 0.85rem;
    font-weight: 700;
    transition: all 0.4s var(--transition-smooth);
    position: relative;
    overflow: hidden;
    align-self: stretch;
    margin-top: auto;
}
.btn-produk::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--hitam), var(--biru-dark));
    transform: translateX(-100%);
    transition: transform 0.4s var(--transition-smooth);
}
.btn-produk span { position: relative; z-index: 1; }
.btn-produk svg { position: relative; z-index: 1; transition: transform 0.4s; }
.btn-produk:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px var(--biru-glow);
}
.btn-produk:hover::before { transform: translateX(0); }
.btn-produk:hover svg { transform: translateX(4px); }

.katalog-empty {
    text-align: center;
    padding: 80px 20px;
    max-width: 500px;
    margin: 0 auto;
}
.katalog-empty .empty-icon {
    font-size: 4.5rem;
    margin-bottom: 20px;
    opacity: 0.4;
    animation: float 4s ease-in-out infinite;
}
.katalog-empty h3 {
    font-size: 1.5rem;
    color: var(--hitam);
    margin-bottom: 10px;
    font-weight: 800;
}
.katalog-empty p {
    color: var(--text-light);
    margin-bottom: 25px;
    line-height: 1.7;
}

.lihat-semua-wrapper {
    text-align: center;
    margin-top: 65px;
    padding-top: 45px;
    border-top: 2px dashed #E0E0E0;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}
.btn-katalog-cta {
    padding: 18px 45px !important;
    font-size: 1.02rem !important;
    display: inline-flex !important;
    align-items: center;
    gap: 12px;
    box-shadow: 0 15px 40px rgba(0,102,204,0.3) !important;
}
.btn-katalog-cta svg { transition: transform 0.4s var(--transition-smooth); }
.btn-katalog-cta:hover svg { transform: translateX(6px); }
.lihat-semua-info {
    margin-top: 18px;
    color: var(--text-light);
    font-size: 0.9rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}
.lihat-semua-info::before { content: '📦'; font-size: 1.1rem; }

/* ============ PORTOFOLIO ============ */
.section-portofolio { background: white; }
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(330px, 1fr));
    gap: 25px;
}
.portfolio-item {
    position: relative;
    height: 350px;
    border-radius: 24px;
    overflow: hidden;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    background: linear-gradient(135deg, #0066CC, #0A0A0A);
    transition: all 0.5s var(--transition-smooth);
}
.portfolio-item:hover {
    box-shadow: 0 30px 60px rgba(0,102,204,0.35);
    transform: translateY(-8px);
}
.portfolio-item img {
    width: 100%; height: 100%;
    object-fit: cover;
    transition: transform 0.8s var(--transition-smooth);
}
.portfolio-item:hover img { transform: scale(1.15); }
.portfolio-placeholder {
    width: 100%; height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 5rem;
    color: white;
    opacity: 0.4;
}
.portfolio-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 30%, rgba(0,74,153,0.98));
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 30px;
    color: white;
    opacity: 0;
    transition: opacity 0.5s;
}
.portfolio-item:hover .portfolio-overlay { opacity: 1; }
.portfolio-overlay h3 {
    font-size: 1.35rem;
    margin-bottom: 8px;
    font-weight: 800;
    letter-spacing: -0.5px;
    transform: translateY(20px);
    transition: transform 0.5s 0.1s;
}
.portfolio-overlay p {
    font-size: 0.9rem;
    opacity: 0.9;
    transform: translateY(20px);
    transition: transform 0.5s 0.2s;
}
.portfolio-meta {
    display: flex;
    gap: 15px;
    margin-top: 12px;
    font-size: 0.82rem;
    opacity: 0.9;
    transform: translateY(20px);
    transition: transform 0.5s 0.3s;
}
.portfolio-item:hover .portfolio-overlay h3,
.portfolio-item:hover .portfolio-overlay p,
.portfolio-item:hover .portfolio-meta { transform: translateY(0); }

/* ============ KONTAK ============ */
.section-kontak {
    background: linear-gradient(-45deg, #0A0A0A 0%, #003366 40%, #004A99 70%, #0A0A0A 100%);
    background-size: 400% 400%;
    animation: gradientShift 20s ease infinite;
    color: white;
    position: relative;
    overflow: hidden;
}
.section-kontak::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 80% 20%, rgba(0,102,204,0.4) 0%, transparent 50%), radial-gradient(circle at 20% 80%, rgba(59,143,224,0.2) 0%, transparent 50%);
}
.section-kontak .container { position: relative; z-index: 2; }
.section-kontak .section-header h2 { color: white; }
.section-kontak .section-header .subtitle { color: #6BB6FF; }
.section-kontak .section-header .subtitle::before,
.section-kontak .section-header .subtitle::after { background: linear-gradient(90deg, transparent, #6BB6FF); }
.section-kontak .section-header p { color: rgba(255,255,255,0.7); }
.section-kontak .section-header h2 span {
    background: linear-gradient(135deg, #FFFFFF, #6BB6FF, #FFFFFF);
    background-size: 200% 200%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientShift 4s ease infinite;
}

.kontak-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 50px;
}
.kontak-info { display: flex; flex-direction: column; gap: 18px; }
.kontak-item {
    display: flex;
    gap: 20px;
    padding: 24px;
    background: rgba(255,255,255,0.06);
    backdrop-filter: blur(15px);
    border-radius: 18px;
    border: 1px solid rgba(255,255,255,0.1);
    transition: all 0.5s var(--transition-smooth);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}
.kontak-item::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.12), transparent);
    transform: translateX(-100%);
    transition: transform 0.6s;
}
.kontak-item:hover::before { transform: translateX(100%); }
.kontak-item:hover {
    background: rgba(255,255,255,0.12);
    transform: translateX(10px);
    border-color: var(--biru-light);
    box-shadow: 0 15px 40px rgba(0,0,0,0.3);
}
.kontak-icon {
    width: 55px; height: 55px;
    background: linear-gradient(135deg, var(--biru), var(--biru-light));
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    flex-shrink: 0;
    box-shadow: 0 8px 20px var(--biru-glow);
    transition: transform 0.4s;
}
.kontak-item:hover .kontak-icon { transform: rotate(-10deg) scale(1.1); }
.kontak-item h4 { font-size: 0.95rem; margin-bottom: 4px; font-weight: 700; }
.kontak-item p { font-size: 0.9rem; opacity: 0.85; }

.kontak-form {
    background: white;
    padding: 45px;
    border-radius: 26px;
    color: var(--text);
    box-shadow: 0 30px 80px rgba(0,0,0,0.4);
    position: relative;
    overflow: hidden;
}
.kontak-form::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 5px;
    background: linear-gradient(90deg, var(--biru), var(--hitam), var(--biru));
    background-size: 200% 100%;
    animation: gradientShift 3s ease infinite;
}
.form-success {
    background: #d4edda;
    color: #155724;
    padding: 15px 20px;
    border-radius: 12px;
    margin-bottom: 20px;
    font-size: 0.9rem;
    font-weight: 500;
    border-left: 4px solid #10B981;
}
.form-group { margin-bottom: 22px; position: relative; }
.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    font-size: 0.88rem;
    color: var(--hitam);
    transition: color 0.3s;
}
.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px 20px;
    border: 2px solid #E5E5E5;
    border-radius: 14px;
    font-family: inherit;
    font-size: 0.95rem;
    transition: all 0.4s var(--transition-smooth);
    background: #FAFBFC;
    color: var(--text);
}
.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--biru);
    background: white;
    box-shadow: 0 0 0 5px rgba(0,102,204,0.1);
    transform: translateY(-2px);
}
.form-group:focus-within label { color: var(--biru); }
.form-group textarea { min-height: 130px; resize: vertical; }
.btn-submit {
    width: 100%;
    padding: 18px;
    background: linear-gradient(135deg, var(--biru), var(--biru-dark));
    color: white;
    border: none;
    border-radius: 14px;
    font-weight: 700;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.4s var(--transition-smooth);
    font-family: inherit;
    position: relative;
    overflow: hidden;
    letter-spacing: 0.3px;
}
.btn-submit::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--hitam), var(--biru-dark));
    transform: translateX(-100%);
    transition: transform 0.5s;
}
.btn-submit span { position: relative; z-index: 1; }
.btn-submit:hover {
    transform: translateY(-3px);
    box-shadow: 0 20px 40px var(--biru-glow);
}
.btn-submit:hover::before { transform: translateX(0); }

/* ============ FOOTER ============ */
.footer {
    background: var(--hitam);
    color: rgba(255,255,255,0.7);
    padding: 75px 25px 25px;
    position: relative;
    overflow: hidden;
}
.footer::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--biru), var(--hitam), var(--biru));
    background-size: 200% 100%;
    animation: gradientShift 4s ease infinite;
}
.footer-grid {
    max-width: 1280px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 50px;
    margin-bottom: 50px;
}
.footer h4 {
    color: white;
    margin-bottom: 22px;
    font-size: 1rem;
    font-weight: 700;
    position: relative;
    padding-bottom: 10px;
    letter-spacing: 0.3px;
}
.footer h4::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0;
    width: 30px;
    height: 2px;
    background: var(--biru);
    border-radius: 2px;
}
.footer ul { list-style: none; }
.footer ul li { margin-bottom: 12px; }
.footer ul a {
    font-size: 0.9rem;
    transition: all 0.3s;
    display: inline-block;
}
.footer ul a:hover {
    color: var(--biru-light);
    transform: translateX(5px);
}
.footer-brand .logo-brand { color: white; margin-bottom: 18px; }
.footer-brand p { font-size: 0.9rem; line-height: 1.7; }
.footer-social {
    display: flex;
    gap: 12px;
    margin-top: 25px;
}
.footer-social a {
    width: 45px; height: 45px;
    background: rgba(255,255,255,0.08);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.4s var(--transition-smooth);
    font-size: 1.1rem;
    position: relative;
    overflow: hidden;
}
.footer-social a::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--biru), var(--biru-dark));
    transform: scale(0);
    transition: transform 0.4s var(--transition-smooth);
    border-radius: 12px;
}
.footer-social a > * { position: relative; z-index: 1; }
.footer-social a:hover {
    transform: translateY(-5px) rotate(-5deg);
    box-shadow: 0 15px 30px var(--biru-glow);
}
.footer-social a:hover::before { transform: scale(1); }
.footer-bottom {
    max-width: 1280px;
    margin: 0 auto;
    padding-top: 30px;
    border-top: 1px solid rgba(255,255,255,0.1);
    text-align: center;
    font-size: 0.85rem;
}

/* ============ SCROLL TO TOP ============ */
.scroll-top {
    position: fixed;
    bottom: 30px; right: 30px;
    width: 55px; height: 55px;
    background: linear-gradient(135deg, var(--biru), var(--biru-dark));
    color: white;
    border: none;
    border-radius: 50%;
    font-size: 1.3rem;
    cursor: pointer;
    box-shadow: 0 10px 30px var(--biru-glow);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all 0.4s var(--transition-smooth);
    z-index: 999;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
}
.scroll-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}
.scroll-top:hover {
    transform: translateY(-5px) scale(1.08);
    box-shadow: 0 20px 40px var(--biru-glow);
}

/* ============ LOADING BAR ============ */
.loading-bar {
    position: fixed;
    top: 0; left: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--biru), var(--biru-light), var(--hitam));
    width: 0;
    z-index: 9999;
    transition: width 0.3s;
    box-shadow: 0 0 10px var(--biru-glow);
}

/* ============================================================
   RESPONSIVE — TABLET (≤968px)
   ============================================================ */
@media (max-width: 968px) {
    .hero-content, .about-grid, .kontak-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .hero-visual {
        display: block !important;
        visibility: visible !important;
        opacity: 1 !important;
        height: 420px !important;
        width: 100% !important;
        margin-top: 50px !important;
        position: relative !important;
    }
    
    .hero-card {
        display: block !important;
        visibility: visible !important;
        opacity: 1 !important;
    }
    
    .hero-card:nth-child(1) {
        top: 0 !important;
        right: 0 !important;
        width: 68% !important;
        height: 68% !important;
    }
    
    .hero-card:nth-child(2) {
        bottom: 0 !important;
        left: 0 !important;
        width: 58% !important;
        height: 52% !important;
    }
    
    .hero-text h1 { font-size: 2.6rem; letter-spacing: -1.5px; }
    .hero-text .hero-desc { font-size: 1rem; }
    .section { padding: 80px 20px; }
    .section-header h2 { font-size: 2.2rem; letter-spacing: -1px; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 35px; }
    .nav-menu { display: none; }
    .about-features { grid-template-columns: 1fr; }
    .about-image { min-height: 400px; }
    .about-image img, .about-placeholder { height: 400px; }
    .scroll-top { bottom: 20px; right: 20px; }

    .keunggulan-title { font-size: 2.8rem; letter-spacing: -2px; }
    .keunggulan-icons { grid-template-columns: repeat(3, 1fr); gap: 30px; }
    .icon-circle { width: 90px; height: 90px; }
    .icon-circle svg { width: 40px; height: 40px; }
    .keunggulan-tagline { font-size: 0.95rem; gap: 8px; }

    .kategori-grid { grid-template-columns: 1fr; gap: 20px; }
    .kategori-card { padding: 35px 30px; }
    .hero-stats { gap: 20px; }
    .stat-num { font-size: 1.4rem; }

    .meteor { width: 80px; }
    .meteor:nth-child(3),
    .meteor:nth-child(5),
    .meteor:nth-child(7),
    .meteor:nth-child(8) { display: none; }
}

/* ============================================================
   RESPONSIVE — MOBILE (≤600px)
   ============================================================ */
@media (max-width: 600px) {
    .hero { padding: 110px 20px 60px; }
    .hero-text h1 { font-size: 2rem; letter-spacing: -1px; }
    .hero-text .badge { font-size: 0.75rem; padding: 8px 16px; }
    .hero-buttons { flex-direction: column; width: 100%; }
    .btn-primary, .btn-outline { width: 100%; justify-content: center; padding: 14px 28px; font-size: 0.92rem; }
    .hero-stats { flex-wrap: wrap; gap: 15px; padding: 15px 0; }
    .stat-divider { display: none; }
    .hero-colors { padding: 10px 16px; }
    .color-label { font-size: 0.72rem; }

    /* FIX FINAL — HERO VISUAL DI MOBILE KECIL */
    .hero-visual {
        display: block !important;
        visibility: visible !important;
        opacity: 1 !important;
        height: 320px !important;
        width: 100% !important;
        margin-top: 40px !important;
        position: relative !important;
    }
    
    .hero-card {
        display: block !important;
        visibility: visible !important;
        opacity: 1 !important;
    }
    
    .hero-card:nth-child(1) {
        top: 0 !important;
        right: 0 !important;
        width: 72% !important;
        height: 72% !important;
    }
    
    .hero-card:nth-child(2) {
        bottom: 0 !important;
        left: 0 !important;
        width: 60% !important;
        height: 55% !important;
    }
    
    .hero-card img {
        padding: 12px !important;
    }

    .keunggulan-title { font-size: 2rem; }
    .keunggulan-icons { grid-template-columns: repeat(2, 1fr); gap: 25px; }
    .icon-circle { width: 80px; height: 80px; }
    .icon-circle svg { width: 35px; height: 35px; }
    .keunggulan-item h4 { font-size: 0.85rem; }
    .keunggulan-footer p { font-size: 0.9rem; padding: 0 25px; }
    .keunggulan-footer p::before,
    .keunggulan-footer p::after { width: 14px; height: 14px; }

    .footer-grid { grid-template-columns: 1fr; gap: 30px; }
    .section-header h2 { font-size: 1.8rem; }
    .section-header .subtitle { padding: 0 40px; font-size: 0.75rem; letter-spacing: 3px; }
    .section-header .subtitle::before,
    .section-header .subtitle::after { width: 28px; }

    .kontak-form { padding: 30px 22px; }
    .about-badge { padding: 15px 22px; bottom: 20px; left: 20px; }
    .about-badge strong { font-size: 1.5rem; }

    .kategori-content h3 { font-size: 1.4rem; }
    .kategori-icon { width: 70px; height: 70px; font-size: 1.8rem; }

    .lihat-semua-wrapper { margin-top: 45px; padding-top: 30px; }
    .btn-katalog-cta { padding: 15px 32px !important; font-size: 0.92rem !important; width: 100%; justify-content: center; }

    .produk-filter { gap: 8px; margin-bottom: 30px; }
    .filter-tab { padding: 9px 16px; font-size: 0.8rem; gap: 6px; }
    .filter-count { min-width: 20px; height: 20px; padding: 0 6px; font-size: 0.68rem; }
    .spec-icon { width: 30px; height: 30px; font-size: 0.85rem; }
    .spec-text { font-size: 0.78rem; }
    .katalog-empty { padding: 50px 15px; }
    .katalog-empty .empty-icon { font-size: 3.5rem; }
    .katalog-empty h3 { font-size: 1.2rem; }

    .produk-grid { grid-template-columns: 1fr; gap: 20px; }
    .portfolio-grid { grid-template-columns: 1fr; }
}