:root {
    /* ==========================================================================
       1. GLOBAL COLOR PALETTE
       ========================================================================== */
    --bg-main: #0C0C0C;
    --bg-tablet-screen: #E0E0E0;
    --text-primary: #FFFFFF;
    --text-dark: #0C0C0C;
    --text-muted: rgba(255, 255, 255, 1);

    /* ==========================================================================
       2. TYPOGRAPHY (FONT SIZES)
       ========================================================================== */
    --font-hero-title: clamp(8rem, 14vw, 12rem);
    --text-standard: clamp(1.1rem, 1.8vw, 1.35rem);
    --text-standard-topbar: clamp(0.9rem, 1.5vw, 1rem);
    --text-rich-h2: clamp(1.2rem, 2.3vw, 2.0rem);
    --text-rich-h3: clamp(.9rem, 1.6vw, 1.2rem);   
    --text-rich-body: clamp(0.75rem, 1.1vw, .9rem);

    /* ==========================================================================
       3. UNIFIED STYLE TOKENS
       ========================================================================== */
    --btn-border-radius: 16px;
    --pill-border-radius: 9999px;
    --btn-font-weight: 700;

    /* ==========================================================================
       4. INNER COMPONENT SPACING (PADDINGS)
       ========================================================================== */
    --spacing-topbar-padding: 15px 20px;
    --spacing-btn-padding: clamp(12px, 1.3vw, 16px) clamp(20px, 2.5vw, 36px);
    --spacing-hero-top-padding: max(80px, 8vw);
    --spacing-hero-content-padding: 0 clamp(15px, 3vw, 30px);
    --spacing-pane-padding: clamp(20px, 4vw, 50px);
    --spacing-toggle-padding: 10px;
    --spacing-tablet-screen-padding: 24px;

    /* ==========================================================================
       5. ELEMENT DISTRIBUTION & STRUCTURE (GAPS & MARGINS)
       ========================================================================== */
    --gap-topbar-cluster: 35px;
    --gap-topbar-links: 30px;
    --gap-hero-actions: 16px;
    --gap-toggle-tabs: 8px;
    --gap-tablet-screen-elements: 24px;

    --margin-zero: 0;
    --margin-hero-title-bottom: 15px;
    --margin-rich-h3-bottom: 10px;
    --margin-rich-hr-vertical: 25px;
    --margin-rich-li-bottom: 8px;
    --list-padding-left: 20px;

    /* ==========================================================================
       6. ANIMATION TIMINGS
       ========================================================================== */
    --delay-topbar: 0.3s;
    --delay-first-tablet: 0.6s;

    /* ==========================================================================
       7. GLASS EFFECT DESIGN TOKENS
       ========================================================================== */
    --glass-text-gradient: linear-gradient(135deg, rgba(255, 255, 255, 0.45) 0%, rgba(255, 255, 255, 0.1) 60%, rgba(255, 255, 255, 0.02) 100%);
    --glass-stroke-emulation: drop-shadow(0px -1px 0px rgba(255, 255, 255, 0.6)) drop-shadow(1px 1px 0px rgba(255, 255, 255, 0.25)) drop-shadow(0px 8px 16px rgba(0, 0, 0, 0.55));
}

html {
    scroll-behavior: smooth;
}

body,
html {
    margin: var(--margin-zero);
    padding: var(--margin-zero);
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-main);
    color: var(--text-primary);
}

.topbar {
    position: fixed;
    top: 0;
    width: 100%;
    height: 10vh;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
    box-sizing: border-box;
    background: rgba(34, 34, 34, var(--bg-opacity, 0));
    backdrop-filter: blur(calc(10px * var(--bg-opacity, 0)));
    padding: var(--spacing-topbar-padding);
    gap: var(--gap-topbar-cluster);
    opacity: 0;
    transform: translateY(-20px);
}

.topbar.reveal {
    animation: dramaticHeroFade 1.6s cubic-bezier(0.16, 1, 0.3, 1) forwards;
    animation-delay: var(--delay-topbar);
}

.topbar-links {
    display: flex;
    align-items: center;
    gap: var(--gap-topbar-links);
}

.topbar a {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    transition: opacity 0.2s ease;
    font-size: var(--text-standard-topbar);
    opacity: .7;
}

.topbar a:hover {
    opacity: 0.8;
}

.topbar-logo-left img,
.topbar-logo-right img {
    height: 45px;
    width: auto;
    display: block;
}

/* ==========================================================================
   TOPBAR MOBILE COMPACT OVERRIDES (FOR DEVICES <= 400px)
   ========================================================================== */
@media (max-width: 400px) {
    /* Sembunyikan navigasi teks tengah */
    .topbar .topbar-links {
        display: none !important;
    }

    /* Sembunyikan logo sebelah kanan */
    .topbar .topbar-logo-right {
        display: none !important;
    }
}

.fixed-background-text {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 8vw;
    font-weight: 800;
    color: rgba(255, 255, 255, 0.3);
    text-transform: uppercase;
    white-space: nowrap;
    z-index: 1;
    pointer-events: none;
}

.main-wrapper {
    position: relative;
    width: 100%;
}

.page1 {
    width: 100%;
    height: 56.25vw;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    background: linear-gradient(to bottom, #0C0C0C 0%, #003362 100%);
}

@media (max-width: 768px) {
    .page1 {
        height: 120vw;
    }
}

@media (max-width: 456px) {
    .page1 {
        height: 150vw;
    }
}

@media (max-width: 338px) {
    .page1 {
        height: 180vw;
    }
}

.fixed-hero {
    position: fixed;
    top: 1%;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    z-index: 1;
    padding: var(--spacing-hero-top-padding) var(--spacing-hero-content-padding) 0;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    width: 100%;
    opacity: 0;
    gap: var(--gap-hero-actions);
}

@keyframes dramaticHeroFade {
    0% {
        opacity: 0;
        transform: translateY(40px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes dramaticTabletFade {
    0% {
        opacity: 0;
        transform: translate(-50%, -40%);
    }
    100% {
        opacity: 1;
        transform: translate(-50%, -50%);
    }
}

.hero-btn {
    display: inline-block;
    text-decoration: none;
    transition: background-color 0.2s ease, transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
    font-size: var(--text-standard);
    font-weight: var(--btn-font-weight);
    border-radius: var(--btn-border-radius);
    padding: var(--spacing-btn-padding);
    white-space: nowrap;
    box-sizing: border-box;
}

.hero-title.reveal,
.hero-subtitle.reveal,
.hero-actions.reveal,
.topbar-logo-lettermark.reveal {
    animation: dramaticHeroFade 1.6s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

/* ==========================================================================
   PRIMARY BUTTON INTEGRATION WITH RUNNING GRADIENT
   ========================================================================== */
.hero-btn.primary {
    color: #2D2D2D; 
    border: 4px solid transparent; 
    
    background-image: 
        linear-gradient(to right, #AAD3F9 0%, #5AAFFF 30%, #AAD3F9 60%, #5AAFFF 100%), 
        linear-gradient(to right, #9ed2ff 0%, #9ed2ff 100%);
    background-size: 200% 100%, border-box;
    background-position: 0% center, center;
    
    background-origin: border-box;
    background-clip: padding-box, border-box;
}

.hero-btn.primary.animate-gradient {
    animation: runGradient 5s ease-in-out 1 forwards;
}

.hero-btn.primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(90, 175, 255, 0.4);
}

/* ==========================================================================
   GRADIENT RUNNING ENGINE KEYFRAMES
   ========================================================================== */
@keyframes runGradient {
    0% {
        background-position: 0% center, center;
    }
    50% {
        background-position: 100% center, center;
    }
    100% {
        background-position: 0% center, center;
    }
}

.hero-btn.secondary {
    background-color: transparent;
    color: var(--text-primary);
    border: 2px solid #FFFFFF;
}

.hero-btn.secondary:hover {
    border-color: #FFFFFF;
    background-color: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

.hero-title {
    width: 100%;
    opacity: 0;
    margin-top: var(--margin-zero);
    margin-left: var(--margin-zero);
    margin-right: var(--margin-zero);
    margin-bottom: var(--margin-hero-title-bottom);
    display: flex;
    justify-content: center;
    align-items: center;
    height: var(--font-hero-title);
}

.hero-title-img {
    width: auto;
    height: 100%;
    object-fit: contain; 
}

@media (max-width: 1600px) {
    .hero-title {
        height: clamp(2rem, 8vw, 4.5rem);
    }
}

.hero-subtitle {
    font-weight: 400;
    line-height: 1.5;
    color: var(--text-muted);
    width: 100%;
    font-size: var(--text-standard);
    opacity: 0;
    margin: var(--margin-zero);
    margin-bottom: var(--margin-hero-title-bottom);
}

/* ==========================================================================
   HERO SECTION RISING SUN SPARKLE MECHANICS
   ========================================================================== */
.hero-sun-sparkle {
    position: absolute;
    top: 150%;
    left: 50%;
    width: 150vw; 
    height: auto;
    object-fit: contain;
    z-index: -1; 
    pointer-events: none;
    mix-blend-mode: screen;
    
    animation: heroSparkleEngine 35s linear infinite;
    transform-origin: center center;
}

@keyframes heroSparkleEngine {
    0% {
        transform: translate(-50%, -50%) rotate(0deg) scale(1);
        opacity: 0.05;
        filter: drop-shadow(0 0 15px rgba(255, 255, 255, 0.15)) blur(2px);
    }
    50% {
        transform: translate(-50%, -50%) rotate(180deg) scale(1.1);
        opacity: 0.1;
        filter: drop-shadow(0 0 40px rgba(90, 175, 255, 0.5)) blur(0px);
    }
    100% {
        transform: translate(-50%, -50%) rotate(360deg) scale(1);
        opacity: 0.05;
        filter: drop-shadow(0 0 15px rgba(255, 255, 255, 0.15)) blur(2px);
    }
}

.page {
    width: 100%;
    height: calc(100vw * 9 / 16);
    display: flex;
    justify-content: center;
    align-items: center;
}

.page-2 {
    background: linear-gradient(to bottom, #003362 0%, #FFFFFF 100%);
    color: var(--text-dark);
}

.page-3 {
    background: linear-gradient(to bottom, #FFFFFF 50%, #ffffff 100%);
    color: var(--text-dark);
}

.topbar-logo-lettermark {
    opacity: 0;
}

.page-5 {
    background: #FFFFFF;
    color: var(--text-dark);
}

@media (max-width: 3000px) {
    .page-5 {
        height: 10vw;
    }
}

@media (max-width: 1100px) {
    .page-5 {
        height: 30vw;
    }
}

@media (max-width: 1100px) {
    .page-5 {
        height: 30vw;
    }
}

@media (max-width: 549px) {
    .page-5 {
        height: 70vw;
    }
}

@media (max-width: 387px) {
    .page-5 {
        height: 90vw;
    }
}

@media (max-width: 331px) {
    .page-5 {
        height: 150vw;
    }
}   

.page-6 {
    background: linear-gradient(to bottom, #FFFFFF 50%, #CBCBCB 100%);
    color: var(--text-dark);
}

.extra {
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: #333;
}

/* ==========================================================================
   FIRST TABLET CONFIGURATIONS (CONSTRAINED UNDER 3:4 RATIO)
   ========================================================================== */
.tablet-mock {
    position: absolute;
    top: 60%;
    left: 50%;
    opacity: 0;
    transform: translate(-50%, -40%);
    width: 95vw;
    
    max-height: 500vh;
    border-radius: 40px;
    z-index: 10;
    overflow: hidden;
    box-sizing: border-box;
    background: rgba(34, 34, 34, 0.5); 
    backdrop-filter: blur(10px);        
    -webkit-backdrop-filter: blur(10px);
    padding: 12px;                      
    
    border: 1.5px solid rgba(90, 175, 255, 0.4);
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.4),
                0 0 15px rgba(90, 175, 255, 0.25),
                inset 0 0 10px rgba(90, 175, 255, 0.1);
                
    animation: tabletEdgeStrobe 1s ease-in-out infinite alternate;
}

.tablet-mock.reveal {
    animation: dramaticTabletFade 1.6s cubic-bezier(0.16, 1, 0.3, 1) forwards,
               tabletEdgeStrobe 1s ease-in-out infinite alternate;
}

.tablet-mock.reveal:first-of-type {
    animation-delay: var(--delay-first-tablet), 0s;
}

.tablet-mock.reveal:nth-of-type(2) {
    animation-delay: 0.75s, 0s;
}

/* ==========================================================================
   SECOND TABLET OVERRIDES (OVERFLOW VISIBLE TO ALLOW FLOATING LOGO)
   ========================================================================== */
.tablet-mock:has(.tab-layout-fix) {
    position: absolute;
    top: 55%;
    left: 50%;
    width: 70vw;
    
    /* Menggunakan aspect-ratio atau max-height agar seragam dengan tablet pertama */
    aspect-ratio: 3 / 4; 
    max-height: 100vh; /* Membatasi tinggi maksimal agar tidak over-scroll melewati viewport */
    border-radius: 40px;
    z-index: 10;
    
    /* TETAP VISIBLE: Supaya logo di atas tidak terpotong */
    overflow: visible; 
    
    box-sizing: border-box;
    background: rgba(34, 34, 34, 0.5); 
    backdrop-filter: blur(10px);        
    -webkit-backdrop-filter: blur(10px);
    padding: 12px;                      
    border: 1.5px solid rgba(90, 175, 255, 0.4);
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.4),
                0 0 15px rgba(90, 175, 255, 0.25),
                inset 0 0 10px rgba(90, 175, 255, 0.1);
}   

@media (max-width: 900px) {
    .tablet-mock:has(.tab-layout-fix) {
        width: 95vw;
    }
}

/* --- DETACHED SCROLL SEPARATION OVERRIDES FOR SECOND TABLET --- */
.screen-content.tab-layout-fix {
    width: 100%;
    height: 100%; /* Memaksa isi layar mengikuti tinggi penuh dari mock tablet */
    overflow-y: hidden; /* Mencegah double scrollbar pada kontainer utama */
    display: flex;
    flex-direction: column;
    align-items: center; 
    justify-content: flex-start;
    padding: 0;
}

/* Pastikan bagian body teks di bawah toggle-switch yang melakukan scrolling */
.tablet-scroll-body {
    width: 100%;
    flex-grow: 1;
    overflow-y: auto; /* Mengaktifkan scrollpage internal di dalam tablet */
    box-sizing: border-box;
    padding: 12px var(--spacing-tablet-screen-padding) var(--spacing-tablet-screen-padding);
    display: flex;
    flex-direction: column;
    align-items: center; 
}

/* ==========================================================================
   FLOATING LETTERMARK LOGO (INSIDE TABLET, APPEARING IN PAGE 3)
   ========================================================================== */
.tablet-mock .lettermark-logo {
    /* Detached from flow: does not affect tablet height */
    position: absolute;
    
    /* Positioned exactly above the top edge of the tablet mockup */
    bottom: 100%; 
    margin-bottom: 50px; /* Gap between logo and tablet frame */
    
    left: 50%;
    transform: translateX(-50%);
    
    width: 65vw;
    max-width: 600px;
    height: auto;
    display: block;
    z-index: 9; /* Ensure it stays above everything */
    pointer-events: none;
}

/* ==========================================================================
   RESPONSIVE OVERRIDES
   ========================================================================== */
@media (max-width: 768px) {
    .tablet-mock .lettermark-logo {
        width: 80vw;
        margin-bottom: 30px;
    }
}

@keyframes tabletEdgeStrobe {
    0% {
        box-shadow: 0 30px 60px rgba(0, 0, 0, 0.4),
                    0 0 15px rgba(90, 175, 255, 0.25),
                    inset 0 0 10px rgba(90, 175, 255, 0.1);
        border-color: rgba(90, 175, 255, 0.3);
    }
    100% {
        box-shadow: 0 30px 60px rgba(0, 0, 0, 0.5),
                    0 0 35px rgba(90, 175, 255, 0.65),
                    inset 0 0 20px rgba(90, 175, 255, 0.25);
        border-color: rgba(170, 211, 249, 0.85);
    }
}

.screen-content {
    width: 100%;
    height: 100%;
    border-radius: 28px;
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    
    /* MODIFIED: Re-centered elements alignment explicitly across viewports */
    align-items: center; 
    justify-content: center;
    
    overflow-y: auto;
    background: var(--bg-tablet-screen);
    padding: var(--spacing-tablet-screen-padding);
    gap: var(--gap-tablet-screen-elements);
}

.tablet-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    border-radius: 20px; 
    margin: 0 auto; /* Forces image centration inside the container flexbox */
}

/* ==========================================================================
   DYNAMIC SEGMENTED TOGGLE COMPONENT STYLE BLOCK
   ========================================================================== */
.comp-toggle-switch {
    display: inline-grid;
    grid-template-columns: repeat(2, 1fr); 
    margin-left: auto;
    margin-right: auto;
    
    max-width: 100%;
    box-sizing: border-box;
    
    background: linear-gradient(to bottom, #D9D9D9 0%, #AAAAAA 100%);
    border: 5px solid rgba(255, 255, 255, 1);
    border-radius: var(--pill-border-radius);
    align-items: center;
    position: relative;
    padding: var(--spacing-toggle-padding);
    gap: var(--gap-toggle-tabs);
}

.switch-tab {
    background: transparent;
    border: none;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    text-align: center;
    border-radius: var(--pill-border-radius);
    padding: var(--spacing-btn-padding);
    white-space: nowrap; 
    box-sizing: border-box; 
    width: 100%;
    height: 100%;
    
    font-size: var(--text-standard);
    font-weight: 800;
    line-height: 1.5;
    color: #262626;
}

.switch-tab.active {
    background: linear-gradient(to bottom, #CFCFCF 0%, #A3A3A3 100%);
    border-radius: var(--pill-border-radius); 
    border: 5px solid #262626; 
    box-shadow: none;
    color: #262626; 
}

.comp-content-pane {
    width: 100%;
    background: #FFFFFF;
    border-radius: 28px;
    box-sizing: border-box;
    color: var(--text-dark);
    box-shadow: inset 0 2px 8px rgba(0, 0, 0, 0.06);
    text-align: left;
    padding: var(--spacing-pane-padding);
}

.rich-text-content {
    display: none;
}

.rich-text-content.active {
    display: block;
    animation: fadeInContent 0.4s ease forwards;
}

.comp-content-pane h2 {
    color: var(--text-dark);
    font-weight: 800;
    font-size: var(--text-rich-h2);
    margin-top: var(--margin-zero);
    text-align: center;
}

.comp-content-pane h3 {
    font-size: var(--text-rich-h3);
    margin-bottom: var(--margin-rich-h3-bottom);
    text-align: center;
}

.comp-content-pane p {
    line-height: 1.6;
    color: #444444;
    font-size: var(--text-rich-body);
}

.comp-content-pane strong {
    color: #000000;
    font-weight: 700;
}

.comp-content-pane hr {
    border: 0;
    height: 1px;
    background: rgba(0, 0, 0, 0.1);
    margin-left: var(--margin-zero);
    margin-right: var(--margin-zero);
    margin-top: var(--margin-rich-hr-vertical);
    margin-bottom: var(--margin-rich-hr-vertical);
}

.comp-content-pane ul {
    margin: var(--margin-zero);
    padding-left: var(--list-padding-left);
}

.comp-content-pane li {
    line-height: 1.6;
    color: #555555;
    font-size: var(--text-rich-body);
    margin-bottom: var(--margin-rich-li-bottom);
}

/* Styling untuk container pembungkus gambar (jika diperlukan untuk memastikan centering) */
.uiux-hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
}

/* Styling untuk gambar prototype-choice-img */
.prototype-choice-img {
    display: block;
    margin: 0 auto;         /* Memastikan elemen berada di tengah secara horizontal */
    max-width: 100%;        /* Mencegah gambar meluap dari parent-nya */
    width: 100vh;            /* Mengadaptasi lebar gambar berdasarkan satuan vh parent (ganti angka 50 sesuai kebutuhan desain Anda) */
    height: auto;           /* Membuat tinggi gambar otomatis menyesuaikan secara proporsional terhadap lebar */
    object-fit: contain;    /* Menjaga proporsi gambar agar tidak terdistorsi */
}

@keyframes fadeInContent {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* --- DETACHED SCROLL SEPARATION OVERRIDES FOR SECOND TABLET --- */
.screen-content.tab-layout-fix {
    overflow-y: hidden;
    display: flex;
    flex-direction: column;
    align-items: center;  /* MODIFIED: Centers the sticky layout modules horizontally */
    justify-content: flex-start;
    padding: 0;
}

.tablet-header-sticky {
    width: 100%;
    box-sizing: border-box;
    background: var(--bg-tablet-screen);
    padding: var(--spacing-tablet-screen-padding) var(--spacing-tablet-screen-padding) 12px;
    z-index: 5;
    flex-shrink: 0;
    display: flex;
    justify-content: center; /* MODIFIED: Forces switch-tab block to stay perfectly centered */
}

.tablet-scroll-body {
    width: 100%;
    flex-grow: 1;
    overflow-y: auto;
    box-sizing: border-box;
    padding: 12px var(--spacing-tablet-screen-padding) var(--spacing-tablet-screen-padding);
    display: flex;
    flex-direction: column;
    align-items: center; /* MODIFIED: Ensures panel layout aligns squarely in the middle */
}

/* ==========================================================================
   8. RESPONSIVE BREAKPOINT INTERCEPTORS (FIXES 1324px, 936px, 362px, 318px)
   ========================================================================== */
@media (max-width: 1024px) {
    .fixed-hero {
        max-width: 95vw;
    }
}

@media (max-width: 940px) {
    .hero-actions {
        gap: 12px;
    }
    .hero-btn {
        padding: 10px 22px;
    }
}

@media (max-width: 768px) {
    .hero-actions {
        flex-direction: column;
        gap: 12px;
    }
    .hero-btn {
        width: 75%;
        box-sizing: border-box;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .screen-content {
        padding: 16px;
        gap: 16px;
    }
    .switch-tab {
        padding: 8px 12px;
        font-size: calc(var(--text-standard) * 0.8);
    }
    .comp-content-pane {
        border-radius: 18px;
        padding: 20px;
    }
    .tablet-header-sticky {
        padding: 16px 16px 8px;
    }
    .tablet-scroll-body {
        padding: 8px 16px 16px;
    }
}

/* ==========================================================================
   SCROLL DOWN INDICATOR STYLES & ANIMATION ENGINE
   ========================================================================== */
.scroll-indicator {
    position: fixed;
    bottom: 10vh;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    z-index: 90;
    pointer-events: none;
    transition: opacity 0.4s cubic-bezier(0.16, 1, 0.3, 1), transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.scroll-text {
    font-size: var(--text-standard);
    font-weight: 400;
    color: var(--text-muted);
    white-space: nowrap;
    text-shadow: 
        0 1px 0px rgba(0, 0, 0, 1),   
        0 4px 12px rgba(0, 0, 0, 0.6),  
        0 8px 24px rgba(0, 0, 0, 0.4);  
}

.scroll-arrow {
    width: 28px;
    height: 28px;
    color: rgba(255, 255, 255, 1);
    filter: drop-shadow(0px 2px 2px rgba(0, 0, 0, 1)) 
            drop-shadow(0px 10px 12px rgba(0, 0, 0, 0.5));
    animation: arrowBob 1s ease-in-out infinite;
}

@keyframes arrowBob {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(8px);
    }
}

/* ==========================================================================
   CONTACTS SECTION STYLES (UNIFORM MAX-WIDTH ENGINE)
   ========================================================================== */
.page-contacts {
    width: 100%;
    min-height: max-content;
    
    /* MODIFIED: Menggunakan RGBA untuk mengatur tingkat transparansi gradasi */
    background: linear-gradient(
        to bottom, 
        rgba(255, 255, 255, .9) 50%,   /* Atas: Sangat transparan (5% opasitas) */
        rgba(255, 255, 255, 1) 100%  /* Bawah: Translucent / Semi-transparan (65% opasitas) */
    );
    
    box-sizing: border-box;
    padding: clamp(60px, 8vw, 120px) 24px;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    z-index: 50;
}

.contacts-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    width: 100%;
    max-width: 800px;
    gap: 32px;
}

/* Top Branding Presentation Cluster */
.branding-block {
    display: flex;
    align-items: center;
    gap: 16px;
    text-align: left;
}

.branding-logo {
    width: 50px;
    max-width: 20%;
    height: auto;
    object-fit: contain;
}

.branding-text {
    display: flex;
    flex-direction: column;
}

.brand-sub {
    font-size: var(--text-standard);
    color: #555555;
    font-weight: 500;
}

.brand-main {
    font-size: var(--text-standard);
    font-weight: 800;
    color: #0C0C0C;
    margin: 0;
}

/* WhatsApp Block Layout Engine */
.whatsapp-block {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.whatsapp-title {
    font-size: var(--text-standard);
    color: #444444;
    font-weight: 500;
    margin: 0 0 24px 0;
}

/* GRID CONFIGURATION (The Left Image Blueprint - Uniform Sizing Engine):
   Uses inline-grid so the container naturally inherits the width of the 
   longest button title, while "1fr 1fr" forces all cells to match that size.
*/
.contacts-grid {
    display: inline-grid;
    grid-template-columns: repeat(2, 1fr);
    justify-content: center;
    gap: 16px;
    max-width: 100%;
}

.contacts-grid .hero-btn {
    width: 100%;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

/* ==========================================================================
   NARROW DEVICE BREAKPOINTS (The Right Image Blueprint)
   ========================================================================== */
@media (max-width: 768px) {
    .branding-block {
        flex-direction: column;
        text-align: center;
        gap: 8px;
    }

    /* Break out of the inline sizing engine to stretch across the viewport wrapper */
    .contacts-grid {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        width: 100%;
    }
}

@media (max-width: 520px) {
    /* Collapse down safely to a single unified vertical strip on tiny devices */
    .contacts-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }
}