/* ==========================================================================
   2211080 — LANDING PAGE STYLESHEET
   100% Consistent with original codebase: layout.css, spatial_chat.css, actor_popup.css
   ========================================================================== */

:root {
  /* Original Design Tokens from layout.css & spatial_chat.css */
  --color-primary: #38a0c4;
  --color-primary-hover: #2282a3;
  --color-accent-border: #8d98e0;
  --color-tint-bg: #bddce7;
  --color-light-bg: #f2f7f9;
  --color-soft-bg: #eef7fa;
  --color-text-navy: #2c5d6b;
  --color-text-dark: #0F4C75;
  --color-text-muted: #7a8a94;
  
  --font-main: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: var(--font-main);
  user-select: none;
  -webkit-user-select: none;
}

img {
  -webkit-user-drag: none;
  user-drag: none;
  user-select: none;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
}

/* ==========================================================================
   GLOBAL CUSTOM SLIM BLUE SCROLLBAR (100% Consistent with layout.css & spatial_chat.css)
   ========================================================================== */
* {
  scrollbar-width: thin;
  scrollbar-color: #8d98e0 transparent;
}

::-webkit-scrollbar {
  width: 4px;
  height: 4px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: #8d98e0;
  border-radius: 99px;
}

::-webkit-scrollbar-thumb:hover {
  background: #38a0c4;
}

body {
  background-color: var(--color-light-bg);
  color: var(--color-text-navy);
  font-family: var(--font-main);
  overflow-x: hidden;
  line-height: 1.5;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Ambient Backdrop */
.bg-ambient {
  position: fixed;
  inset: 0;
  background-image: 
    radial-gradient(circle at 50% 10%, rgba(56, 160, 196, 0.08) 0%, transparent 50%),
    linear-gradient(to right, rgba(141, 152, 224, 0.04) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(141, 152, 224, 0.04) 1px, transparent 1px);
  background-size: 100% 100%, 28px 28px, 28px 28px;
  pointer-events: none;
  z-index: 0;
}

/* ==========================================================================
   HEADER (BRAND LOGO + 2211080 + NAV + CTA)
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  width: 100%;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 2px solid #bddce7;
  z-index: 100;
  box-shadow: 0 2px 10px rgba(56, 160, 196, 0.06);
}

.nav-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 10px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-identity {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-logo {
  width: 32px;
  height: 32px;
  object-fit: contain;
}

.brand-name {
  font-family: var(--font-main);
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: 0.08em;
}

/* Site Navigation (Beranda, Tentang) */
.site-nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-link {
  font-family: var(--font-main);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text-navy);
  text-decoration: none;
  transition: all 0.2s ease;
  position: relative;
  padding: 4px 0;
}

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

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 100%;
  height: 2.5px;
  background: var(--color-primary);
  border-radius: 4px;
}

/* Mobile Hamburger Button (Hidden on Desktop) */
.mobile-menu-toggle {
  display: none;
  background: rgba(56, 160, 196, 0.12);
  border: 1.5px solid #bddce7;
  color: var(--color-primary);
  width: 40px;
  height: 40px;
  border-radius: 10px;
  font-size: 1.35rem;
  font-weight: 700;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  line-height: 1;
}

.mobile-menu-toggle:hover,
.mobile-menu-toggle.active {
  background: var(--color-primary);
  color: #ffffff;
  border-color: var(--color-primary);
  box-shadow: 0 3px 10px rgba(56, 160, 196, 0.25);
}

.site-nav .mobile-nav-cta {
  display: none;
}

/* Header Actions & CTA Button */
.header-actions {
  display: flex;
  align-items: center;
}

.btn-cta-header {
  background: var(--color-primary);
  border: 2px solid var(--color-accent-border);
  color: #ffffff;
  font-family: var(--font-main);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  padding: 8px 22px;
  border-radius: 20px;
  text-decoration: none;
  cursor: pointer;
  box-shadow: 0 3px 10px rgba(56, 160, 196, 0.25);
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.btn-cta-header:hover {
  background: var(--color-primary-hover);
  border-color: var(--color-primary);
  transform: translateY(-1px);
  box-shadow: 0 5px 14px rgba(56, 160, 196, 0.35);
  color: #ffffff;
}

/* ==========================================================================
   HERO LANDING SECTION (Matching Reference Layout Style)
   ========================================================================== */
.main-viewport {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 0 16px 40px;
  position: relative;
  z-index: 10;
  max-width: 1320px;
  margin: 0 auto;
  width: 100%;
}

.hero-landing-section {
  width: 100%;
  position: relative;
  padding: 48px 16px 36px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  min-height: 380px;
  justify-content: center;
}

.hero-center-content {
  max-width: 780px;
  display: flex;
  flex-direction: column;
  align-items: center;
  z-index: 5;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #ffffff;
  border: 1.5px solid #bddce7;
  padding: 6px 16px;
  border-radius: 9999px;
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 20px;
  box-shadow: 0 2px 8px rgba(56, 160, 196, 0.12);
  letter-spacing: 0.06em;
}

.hero-badge-dot {
  width: 7px;
  height: 7px;
  background: #10b981;
  border-radius: 50%;
  box-shadow: 0 0 6px #10b981;
}

.hero-main-title {
  font-family: var(--font-main);
  font-size: 2.85rem;
  font-weight: 900;
  color: var(--color-text-navy);
  line-height: 1.18;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
  min-height: 2.4em;
}

.typewriter-cursor {
  display: inline-block;
  color: var(--color-primary);
  font-weight: 300;
  margin-left: 3px;
  animation: blinkTypewriterCursor 0.8s infinite;
}

@keyframes blinkTypewriterCursor {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

.hero-subtitle {
  font-size: 1.05rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  max-width: 650px;
  margin-bottom: 28px;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  justify-content: center;
}

.btn-hero-primary {
  background: var(--color-primary);
  border: 2px solid var(--color-accent-border);
  color: #ffffff;
  font-size: 0.95rem;
  font-weight: 700;
  padding: 12px 28px;
  border-radius: 28px;
  cursor: pointer;
  box-shadow: 0 6px 20px rgba(56, 160, 196, 0.35);
  transition: all 0.25s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 8px;
}

.btn-hero-primary:hover {
  background: var(--color-primary-hover);
  border-color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(56, 160, 196, 0.45);
}

.btn-hero-secondary {
  background: #ffffff;
  border: 2px solid #bddce7;
  color: var(--color-text-navy);
  font-size: 0.95rem;
  font-weight: 700;
  padding: 12px 24px;
  border-radius: 28px;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.btn-hero-secondary:hover {
  background: #f0f9fc;
  border-color: var(--color-primary);
  color: var(--color-primary);
  transform: translateY(-2px);
}

/* Flanking Modern Glass Cards (Left & Right with Sleek 3D Tilt & Contoured Shape) */
.flanking-glass-card {
  position: absolute;
  width: 285px;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1.5px solid rgba(189, 220, 231, 0.85);
  padding: 14px 16px;
  box-shadow: 0 16px 36px rgba(56, 160, 196, 0.18), 0 4px 12px rgba(15, 76, 117, 0.06);
  text-align: left;
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 12px;
  z-index: 4;
  transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  transform-origin: center center;
}

.flanking-glass-card.card-left {
  left: 20px;
  top: 45%;
  border-radius: 32px 18px 24px 32px;
  transform: translateY(-50%) rotate(-7deg);
  animation: floatCardLeft 4.5s ease-in-out infinite alternate;
}

.flanking-glass-card.card-right {
  right: 20px;
  top: 45%;
  border-radius: 18px 32px 32px 24px;
  transform: translateY(-50%) rotate(7deg);
  animation: floatCardRight 4.5s ease-in-out infinite alternate;
  animation-delay: 1.8s;
}

@keyframes floatCardLeft {
  0% { transform: translateY(-50%) rotate(-7deg) translateY(0px); }
  100% { transform: translateY(-50%) rotate(-7deg) translateY(-14px); }
}

@keyframes floatCardRight {
  0% { transform: translateY(-50%) rotate(7deg) translateY(0px); }
  100% { transform: translateY(-50%) rotate(7deg) translateY(-14px); }
}

.flanking-glass-card.card-left:hover {
  transform: translateY(-54%) rotate(-2deg) scale(1.05);
  border-color: var(--color-primary);
  box-shadow: 0 22px 48px rgba(56, 160, 196, 0.3);
  background: rgba(255, 255, 255, 0.96);
}

.flanking-glass-card.card-right:hover {
  transform: translateY(-54%) rotate(2deg) scale(1.05);
  border-color: var(--color-primary);
  box-shadow: 0 22px 48px rgba(56, 160, 196, 0.3);
  background: rgba(255, 255, 255, 0.96);
}

.flanking-icon-box {
  width: auto;
  height: auto;
  background: transparent !important;
  border: none !important;
  box-shadow: none !important;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  flex-shrink: 0;
}

/* 50-70px SVG (62px) WITH THICK WHITE ACCENT CONTOUR / SILHOUETTE STROKE */
.flanking-svg-img {
  width: 62px;
  height: 62px;
  min-width: 62px;
  object-fit: contain;
  filter: drop-shadow(2px 0 0 #ffffff)
          drop-shadow(-2px 0 0 #ffffff)
          drop-shadow(0 2px 0 #ffffff)
          drop-shadow(0 -2px 0 #ffffff)
          drop-shadow(0 0 5px rgba(56, 160, 196, 0.45))
          drop-shadow(0 6px 14px rgba(15, 76, 117, 0.2));
  transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1), filter 0.35s ease;
}

.flanking-glass-card:hover .flanking-svg-img {
  transform: scale(1.1) rotate(-3deg);
  filter: drop-shadow(2.5px 0 0 #ffffff)
          drop-shadow(-2.5px 0 0 #ffffff)
          drop-shadow(0 2.5px 0 #ffffff)
          drop-shadow(0 -2.5px 0 #ffffff)
          drop-shadow(0 0 8px rgba(56, 160, 196, 0.6))
          drop-shadow(0 8px 18px rgba(15, 76, 117, 0.28));
}

.flanking-text-content {
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-width: 0;
}

.flanking-title {
  font-size: 0.94rem;
  font-weight: 800;
  color: var(--color-text-navy);
  margin: 0;
  line-height: 1.25;
}

.flanking-desc {
  font-size: 0.74rem;
  color: var(--color-text-muted);
  line-height: 1.4;
  margin: 0;
}

/* ==========================================================================
   9 INTERACTIVE FEATURE CONTAINERS (Alternating Left-Right Zigzag)
   ========================================================================== */
.features-zigzag-section {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 20px 16px 60px;
  position: relative;
  z-index: 5;
}

.features-zigzag-list {
  display: flex;
  flex-direction: column;
  gap: 56px;
  width: 100%;
}

.feature-zigzag-card {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  gap: 52px;
  padding: 44px 44px;
  background: #ffffff;
  border: 1.5px solid #bddce7;
  border-radius: 36px;
  box-shadow: 0 10px 36px rgba(56, 160, 196, 0.08);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  width: 100%;
  scroll-margin-top: 90px;
}

.features-zigzag-list .feature-zigzag-card:nth-child(even),
.feature-zigzag-card.reverse {
  flex-direction: row-reverse;
}

.features-zigzag-list .feature-zigzag-card:nth-child(odd) {
  flex-direction: row;
}

.feature-zigzag-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-primary);
  box-shadow: 0 18px 48px rgba(56, 160, 196, 0.18);
  background: #fdfefe;
}

.feature-text-column {
  flex: 1.15;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  text-align: left;
  gap: 20px;
}

/* ENLARGED HERO SVG ICON CONTAINER */
.feature-icon-wrapper-hero {
  width: 130px;
  height: 130px;
  min-width: 130px;
  background: linear-gradient(135deg, #f2f7f9 0%, #e8f3f7 100%);
  border: 2.5px solid #8d98e0;
  border-radius: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 24px rgba(56, 160, 196, 0.16);
  transition: all 0.25s ease;
}

.feature-zigzag-card:hover .feature-icon-wrapper-hero {
  background: #e4f4fa;
  border-color: var(--color-primary);
  transform: scale(1.06);
  box-shadow: 0 12px 30px rgba(56, 160, 196, 0.25);
}

.feature-svg-hero {
  width: 90px;
  height: 90px;
  object-fit: contain;
  transition: transform 0.25s ease;
  filter: drop-shadow(0 4px 10px rgba(56, 160, 196, 0.2));
}

.feature-zigzag-card:hover .feature-svg-hero {
  transform: scale(1.05);
}

.feature-title-hero {
  font-size: 2rem;
  font-weight: 900;
  color: var(--color-text-navy);
  line-height: 1.25;
  letter-spacing: -0.01em;
}

.feature-desc-hero {
  font-size: 1.05rem;
  color: var(--color-text-muted);
  line-height: 1.7;
  margin: 0;
}

/* FEATURE SECTION AUTO-NAV CONTROLS (NEXT / PREV) */
.feature-nav-group {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 10px;
  flex-wrap: wrap;
}

.btn-hero-nav {
  background: #ffffff;
  border: 1.5px solid #bddce7;
  color: var(--color-text-navy);
  font-size: 0.92rem;
  font-weight: 700;
  padding: 10px 20px;
  border-radius: 26px;
  cursor: pointer;
  box-shadow: 0 3px 12px rgba(56, 160, 196, 0.12);
  transition: all 0.22s cubic-bezier(0.4, 0, 0.2, 1);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.btn-hero-nav:hover {
  background: var(--color-light-bg);
  border-color: var(--color-primary);
  color: var(--color-text-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(56, 160, 196, 0.22);
}

.btn-hero-nav:active {
  transform: translateY(0);
}

.btn-hero-nav.btn-hero-next {
  background: var(--color-primary);
  border-color: var(--color-accent-border);
  color: #ffffff;
  box-shadow: 0 4px 16px rgba(56, 160, 196, 0.35);
}

.btn-hero-nav.btn-hero-next:hover {
  background: var(--color-primary-hover);
  border-color: var(--color-primary);
  color: #ffffff;
  box-shadow: 0 8px 22px rgba(56, 160, 196, 0.45);
}

.feature-step-badge {
  position: absolute;
  top: 24px;
  right: 28px;
  font-size: 0.82rem;
  font-weight: 800;
  color: var(--color-text-navy);
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.95), rgba(240, 248, 252, 0.9));
  border: 1.5px solid #bddce7;
  padding: 6px 14px;
  border-radius: 20px;
  letter-spacing: 0.04em;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  box-shadow: 0 4px 14px rgba(56, 160, 196, 0.12);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 10;
  pointer-events: none;
}

.feature-phone-column {
  flex: 0.85;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Standalone Phone Device Card inside each feature container */
.feature-phone-column .phone-3d-wrapper {
  perspective: 1400px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 100%;
  position: relative;
}

.feature-phone-column .phone-3d-card {
  position: relative;
  width: 330px;
  height: 620px;
  max-width: 90vw;
  transform-style: preserve-3d;
  will-change: transform;
}

/* Static Phone Previews for Visual Diversity across 9 Containers */
.phone-static-preview {
  width: 100%;
  height: 100%;
  background: #f8fafc;
  display: flex;
  flex-direction: column;
  padding: 14px 12px;
  gap: 12px;
  position: relative;
  overflow: hidden;
}

.preview-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 12px;
  background: #ffffff;
  border: 1px solid #bddce7;
  border-radius: 14px;
  margin-top: 14px;
}

.preview-brand {
  font-size: 0.82rem;
  font-weight: 800;
  color: var(--color-primary);
}

.preview-map-bg {
  flex: 1;
  background: linear-gradient(135deg, #e2e8f0 0%, #cbd5e1 100%);
  border-radius: 18px;
  border: 1px solid #cbd5e1;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.preview-overlay-card {
  background: #ffffff;
  border: 1.5px solid #bddce7;
  border-radius: 16px;
  padding: 12px;
  text-align: left;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
}

.preview-overlay-card strong {
  display: block;
  font-size: 0.86rem;
  color: var(--color-text-navy);
  margin-bottom: 2px;
}

.preview-overlay-card p {
  font-size: 0.74rem;
  color: var(--color-text-muted);
  margin: 0;
}

.preview-campaign-banner {
  background: linear-gradient(135deg, #fdf2f8 0%, #fce7f3 100%);
  border: 1.5px solid #f472b6;
  border-radius: 18px;
  padding: 18px 12px;
  text-align: center;
  color: #9d174d;
}

.preview-campaign-banner h3 {
  font-size: 0.95rem;
  font-weight: 800;
  margin-bottom: 4px;
}

.preview-campaign-banner p {
  font-size: 0.74rem;
  color: #be185d;
  margin: 0;
}

.preview-campaign-item {
  background: #ffffff;
  border: 1px solid #bddce7;
  border-radius: 14px;
  padding: 10px 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.78rem;
  font-weight: 700;
}

.preview-btn-sm {
  background: var(--color-primary);
  color: #ffffff;
  border: none;
  padding: 4px 10px;
  border-radius: 8px;
  font-size: 0.72rem;
  font-weight: 700;
  cursor: pointer;
}

.preview-job-card {
  background: #ffffff;
  border: 1.5px solid #bddce7;
  border-radius: 16px;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  text-align: left;
}

.job-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.job-card-header strong {
  font-size: 0.85rem;
  color: var(--color-text-navy);
}

.job-tag {
  font-size: 0.68rem;
  background: #dcfce7;
  color: #15803d;
  padding: 2px 6px;
  border-radius: 6px;
  font-weight: 700;
}

.job-company {
  font-size: 0.74rem;
  color: #64748b;
}

.job-salary {
  font-size: 0.78rem;
  font-weight: 800;
  color: var(--color-primary);
}

.preview-btn-primary {
  background: #10b981;
  color: #ffffff;
  border: none;
  padding: 6px 12px;
  border-radius: 10px;
  font-size: 0.75rem;
  font-weight: 700;
  cursor: pointer;
  margin-top: 4px;
}

.chat-preview-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 8px;
  overflow-y: auto;
  padding: 4px;
}

.chat-bubble-preview {
  padding: 8px 12px;
  border-radius: 14px;
  font-size: 0.76rem;
  line-height: 1.4;
  max-width: 88%;
}

.chat-bubble-preview.bot {
  background: #ffffff;
  border: 1px solid #bddce7;
  align-self: flex-start;
  color: var(--color-text-navy);
}

.chat-bubble-preview.user {
  background: var(--color-primary);
  color: #ffffff;
  align-self: flex-end;
}

.chat-input-preview-bar {
  background: #ffffff;
  border: 1px solid #bddce7;
  border-radius: 14px;
  padding: 8px 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.preview-radius-circle-container {
  flex: 1;
  background: #f1f5f9;
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.radius-circle-pulse {
  width: 140px;
  height: 140px;
  border-radius: 50%;
  background: rgba(56, 160, 196, 0.2);
  border: 2px solid var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  animation: pulseRadius 2.5s infinite;
}

@keyframes pulseRadius {
  0% { transform: scale(0.95); opacity: 0.8; }
  50% { transform: scale(1.08); opacity: 1; }
  100% { transform: scale(0.95); opacity: 0.8; }
}

.cipta-kerja-chips-preview {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.ck-chip {
  padding: 6px 10px;
  border-radius: 10px;
  background: #ffffff;
  border: 1px solid #cbd5e1;
  font-size: 0.72rem;
  font-weight: 700;
  color: #475569;
}

.ck-chip.active {
  background: #fef3c7;
  border-color: #f59e0b;
  color: #b45309;
}

.builder-tools-preview {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  padding: 4px 0;
}

.builder-tools-preview span {
  padding: 4px 8px;
  background: #ffffff;
  border: 1px solid #bddce7;
  border-radius: 8px;
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--color-text-navy);
}

.builder-canvas-preview {
  flex: 1;
  background: #ffffff;
  border: 1.5px dashed #bddce7;
  border-radius: 16px;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.canvas-item-preview {
  padding: 8px 12px;
  border-radius: 10px;
  font-size: 0.76rem;
  font-weight: 700;
}

.canvas-item-preview.title-item {
  background: #eff6ff;
  color: #1e40af;
}

.canvas-item-preview.card-item {
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  color: #334155;
}

.canvas-item-preview.btn-item {
  background: #25d366;
  color: #ffffff;
  text-align: center;
}

@media (max-width: 900px) {
  .feature-zigzag-card,
  .feature-zigzag-card.reverse {
    flex-direction: column !important;
    align-items: center;
    text-align: center;
    gap: 32px;
    padding: 32px 20px;
  }

  .feature-text-column {
    align-items: center;
    text-align: center;
  }
}

/* ==========================================================================
   COLLAPSIBLE 3D SMARTPHONE SIMULATOR SECTION
   ========================================================================== */
.device-showcase-section {
  width: 100%;
  max-width: 1000px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding-top: 10px;
  margin-top: 20px;
  scroll-margin-top: 80px;
  animation: slideInSimulator 0.4s ease-out;
}

@keyframes slideInSimulator {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

.simulator-control-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: 420px;
  margin-bottom: 16px;
  background: #ffffff;
  border: 1.5px solid #bddce7;
  border-radius: 30px;
  padding: 6px 14px;
  box-shadow: 0 4px 14px rgba(56, 160, 196, 0.15);
}

.simulator-active-pill {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-text-navy);
}

.pill-dot {
  width: 8px;
  height: 8px;
  background: #10b981;
  border-radius: 50%;
  box-shadow: 0 0 6px #10b981;
}

.btn-close-simulator {
  background: #ef4444;
  color: #ffffff;
  border: none;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 5px 12px;
  border-radius: 20px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-close-simulator:hover {
  background: #dc2626;
  transform: scale(1.05);
}

.phone-3d-wrapper {
  perspective: 1400px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 100%;
  cursor: grab;
  touch-action: none;
  position: relative;
}

.phone-3d-wrapper.grabbing {
  cursor: grabbing !important;
}

.phone-3d-card {
  position: relative;
  width: 380px;
  height: 720px;
  max-width: 94vw;
  max-height: 84vh;
  transform-style: preserve-3d;
  will-change: transform;
  transition: transform 0.08s ease-out;
}

.phone-3d-card.animating {
  transition: transform 0.65s cubic-bezier(0.34, 1.56, 0.64, 1) !important;
}

/* ==========================================================================
   SITE FOOTER
   ========================================================================== */
.site-footer {
  width: 100%;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  border-top: 2px solid #bddce7;
  padding: 14px 24px;
  z-index: 50;
  margin-top: auto;
}

.footer-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.78rem;
  color: var(--color-text-muted);
}

/* ==========================================================================
   RESPONSIVE DESIGN (MOBILE & TABLET)
   ========================================================================== */
@keyframes floatCardLeftMobile {
  0% { transform: rotate(-4.5deg) translateY(0px); }
  100% { transform: rotate(-4.5deg) translateY(-9px); }
}

@keyframes floatCardRightMobile {
  0% { transform: rotate(4.5deg) translateY(0px); }
  100% { transform: rotate(4.5deg) translateY(-9px); }
}

@media (max-width: 992px) {
  .hero-landing-section {
    padding: 38px 16px 32px;
    gap: 16px;
    overflow: visible;
  }

  .hero-main-title {
    font-size: 2.2rem;
  }

  /* Responsive Flanking Glass Cards: Dynamic Tilt & Floating Animation on Tablet */
  .flanking-glass-card {
    position: relative;
    top: auto;
    left: auto;
    right: auto;
    width: calc(100% - 28px);
    max-width: 500px;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1.5px solid rgba(189, 220, 231, 0.95);
    box-shadow: 0 12px 30px rgba(56, 160, 196, 0.18), 0 4px 12px rgba(15, 76, 117, 0.08);
    transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  }

  .flanking-glass-card.card-left {
    margin: 18px auto 0 14px;
    border-radius: 28px 16px 22px 28px;
    transform: rotate(-4.5deg);
    animation: floatCardLeftMobile 4.2s ease-in-out infinite alternate;
  }

  .flanking-glass-card.card-right {
    margin: 14px 14px 0 auto;
    border-radius: 16px 28px 28px 22px;
    transform: rotate(4.5deg);
    animation: floatCardRightMobile 4.5s ease-in-out infinite alternate;
    animation-delay: 1.5s;
  }

  .flanking-glass-card:hover,
  .flanking-glass-card:active {
    transform: scale(1.03) rotate(0deg) !important;
    box-shadow: 0 18px 40px rgba(56, 160, 196, 0.32);
    background: rgba(255, 255, 255, 0.98);
  }
}

@media (max-width: 768px) {
  .nav-container {
    padding: 10px 16px;
    position: relative;
  }
  
  .header-actions {
    display: none !important; /* Hide desktop CTA in top bar */
  }

  .mobile-menu-toggle {
    display: flex !important;
  }

  /* Mobile Dropdown Navigation Menu */
  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    flex-direction: column;
    align-items: stretch;
    padding: 18px 20px;
    gap: 12px;
    border-bottom: 2px solid #bddce7;
    box-shadow: 0 12px 30px rgba(44, 93, 107, 0.14);
    display: none;
    z-index: 200;
  }

  .site-nav.open {
    display: flex !important;
    animation: mobileNavFadeIn 0.22s cubic-bezier(0.16, 1, 0.3, 1) forwards;
  }

  .site-nav .nav-link {
    font-size: 0.95rem;
    padding: 10px 14px;
    border-radius: 8px;
    background: rgba(56, 160, 196, 0.05);
    color: var(--color-text-navy);
    font-weight: 700;
  }

  .site-nav .nav-link:hover,
  .site-nav .nav-link.active {
    background: rgba(56, 160, 196, 0.14);
    color: var(--color-primary);
  }

  .site-nav .nav-link.active::after {
    display: none;
  }

  .site-nav .mobile-nav-cta {
    display: flex !important;
    margin-top: 6px;
    width: 100%;
    text-align: center;
    justify-content: center;
  }

  .brand-name {
    font-size: 1.15rem;
  }

  .hero-main-title {
    font-size: 1.85rem;
  }
  
  .hero-subtitle {
    font-size: 0.9rem;
  }

  /* Flanking Card Styling on Mobile: Floating & Tilted */
  .flanking-glass-card {
    max-width: 440px;
    padding: 13px 16px;
    gap: 14px;
  }

  .flanking-glass-card.card-left {
    margin: 16px auto 0 10px;
    transform: rotate(-4deg);
    animation: floatCardLeftMobile 3.8s ease-in-out infinite alternate;
  }

  .flanking-glass-card.card-right {
    margin: 12px 10px 0 auto;
    transform: rotate(4deg);
    animation: floatCardRightMobile 4.2s ease-in-out infinite alternate;
    animation-delay: 1.4s;
  }

  .flanking-svg-img {
    width: 56px;
    height: 56px;
    min-width: 56px;
  }

  .flanking-title {
    font-size: 1rem;
    font-weight: 800;
    margin-bottom: 3px;
  }

  .flanking-desc {
    font-size: 0.83rem;
    line-height: 1.42;
  }

  .features-cards-grid {
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 12px;
  }
  
  .feature-icon-wrapper {
    width: 68px;
    height: 68px;
  }
  
  .feature-svg-large {
    width: 40px;
    height: 40px;
  }

  .feature-step-badge {
    top: 16px;
    right: 18px;
    font-size: 0.76rem;
    padding: 4px 10px;
  }

  /* Responsive 3D Phone Wrapper */
  .phone-3d-wrapper {
    perspective: 1200px;
    padding: 10px 0;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
    display: flex;
    justify-content: center;
  }

  .phone-3d-card {
    width: min(340px, 88vw);
    height: min(650px, 78vh);
    max-width: 88vw;
    border-radius: 40px;
  }

  .phone-face {
    border-radius: 40px;
  }

  .phone-screen-viewport {
    border-radius: 34px;
  }

  .footer-inner {
    flex-direction: column;
    gap: 6px;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .nav-container {
    padding: 8px 12px;
  }

  .brand-name {
    font-size: 1.05rem;
  }

  .hero-main-title {
    font-size: 1.55rem;
    min-height: 2.8em;
  }

  .hero-subtitle {
    font-size: 0.88rem;
    padding: 0 4px;
  }

  .hero-cta-group {
    flex-direction: column;
    width: 100%;
    gap: 10px;
  }

  .btn-hero-primary,
  .btn-hero-secondary {
    width: 100%;
    justify-content: center;
  }

  /* Flanking Card Styling on Small Mobile: Sexy Tilted Floating Cards */
  .flanking-glass-card {
    width: calc(100% - 16px);
    max-width: 100%;
    padding: 12px 14px;
    gap: 12px;
  }

  .flanking-glass-card.card-left {
    margin: 14px auto 0 8px;
    border-radius: 24px 14px 18px 24px !important;
    transform: rotate(-3.5deg);
    animation: floatCardLeftMobile 3.6s ease-in-out infinite alternate;
  }

  .flanking-glass-card.card-right {
    margin: 10px 8px 0 auto;
    border-radius: 14px 24px 24px 18px !important;
    transform: rotate(3.5deg);
    animation: floatCardRightMobile 4.0s ease-in-out infinite alternate;
    animation-delay: 1.3s;
  }

  .flanking-svg-img {
    width: 50px;
    height: 50px;
    min-width: 50px;
  }

  .flanking-title {
    font-size: 0.93rem;
    font-weight: 800;
  }

  .flanking-desc {
    font-size: 0.79rem;
    line-height: 1.38;
  }

  /* Responsive 3D Phone on Small Screens */
  .phone-3d-card {
    width: min(300px, 90vw);
    height: min(570px, 75vh);
    border-radius: 36px;
  }

  .phone-face {
    border-radius: 36px;
  }

  .phone-screen-viewport {
    border-radius: 30px;
  }

  .phone-solid-chassis,
  .chassis-layer {
    border-radius: 36px;
  }
}

@media (max-width: 360px) {
  .hero-main-title {
    font-size: 1.35rem;
  }

  .flanking-glass-card {
    width: calc(100% - 12px);
    padding: 10px 12px;
    gap: 10px;
  }

  .flanking-glass-card.card-left {
    margin: 12px auto 0 6px;
    transform: rotate(-3deg);
    animation: floatCardLeftMobile 3.5s ease-in-out infinite alternate;
  }

  .flanking-glass-card.card-right {
    margin: 8px 6px 0 auto;
    transform: rotate(3deg);
    animation: floatCardRightMobile 3.8s ease-in-out infinite alternate;
    animation-delay: 1.2s;
  }

  .flanking-svg-img {
    width: 44px;
    height: 44px;
    min-width: 44px;
  }

  .flanking-title {
    font-size: 0.88rem;
  }

  .flanking-desc {
    font-size: 0.75rem;
  }

  .phone-3d-card {
    width: min(270px, 92vw);
    height: min(510px, 72vh);
    border-radius: 32px;
  }

  .phone-face {
    border-radius: 32px;
  }

  .phone-screen-viewport {
    border-radius: 26px;
  }

  .phone-solid-chassis,
  .chassis-layer {
    border-radius: 32px;
  }
}

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

/* ==========================================================================
   ABOUT PAGE (TENTANG PENELITI & SISTEM) STYLES
   ========================================================================== */
.about-viewport {
  flex: 1;
  max-width: 1140px;
  width: 100%;
  margin: 0 auto;
  padding: 40px 20px 70px;
  display: flex;
  flex-direction: column;
  gap: 32px;
  position: relative;
  z-index: 10;
}

.about-header {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.about-title {
  font-family: var(--font-main);
  font-size: 2.4rem;
  font-weight: 900;
  color: var(--color-text-navy);
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.about-subtitle {
  font-size: 1rem;
  color: var(--color-text-muted);
  max-width: 680px;
  line-height: 1.6;
}

/* Profile Hero Glass Card (Clean & Subtle) */
.about-profile-hero-card {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 36px;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid #bddce7;
  border-radius: 24px;
  padding: 32px 36px;
  box-shadow: 0 10px 30px rgba(44, 93, 107, 0.08);
  align-items: center;
}

/* Left Photo Column */
/* Left Photo Column (3D Interactive Rotating Card) */
.about-photo-col {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 14px;
}

.photo-3d-wrapper {
  perspective: 1100px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: grab;
  touch-action: none;
  position: relative;
  user-select: none;
}

.photo-3d-wrapper.grabbing {
  cursor: grabbing !important;
}

.photo-3d-card {
  position: relative;
  transform-style: preserve-3d;
  will-change: transform;
  transition: transform 0.08s ease-out;
  animation: ambientPhotoRotate3D 7.5s ease-in-out infinite alternate;
}

.photo-3d-card.animating {
  transition: transform 0.55s cubic-bezier(0.34, 1.56, 0.64, 1) !important;
}

.photo-3d-card.is-interacting {
  animation: none !important;
}

@keyframes ambientPhotoRotate3D {
  0% {
    transform: rotateX(5deg) rotateY(-10deg) translateY(0px);
  }
  50% {
    transform: rotateX(-5deg) rotateY(10deg) translateY(-8px);
  }
  100% {
    transform: rotateX(7deg) rotateY(-6deg) translateY(0px);
  }
}

.about-photo-frame {
  position: relative;
  width: 210px;
  height: 260px;
  border-radius: 18px;
  overflow: hidden;
  border: 1px solid #bddce7;
  box-shadow: 0 12px 28px rgba(44, 93, 107, 0.12), 0 2px 8px rgba(56, 160, 196, 0.08);
  background: #f8fafc;
}

.photo-glass-glare {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 45%;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.3) 0%, transparent 60%);
  border-radius: 18px 18px 0 0;
  pointer-events: none;
  z-index: 2;
}

.about-photo-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  pointer-events: none;
  user-drag: none;
  -webkit-user-drag: none;
  user-select: none;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
}

.about-nim-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: #f0f7fa;
  border: 1px solid #bddce7;
  color: var(--color-text-navy);
  font-weight: 800;
  font-size: 0.86rem;
  letter-spacing: 0.05em;
  padding: 6px 16px;
  border-radius: 12px;
}

/* Right Information Column */
.about-info-col {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.about-author-header {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.about-author-role {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.about-author-name {
  font-size: 2.1rem;
  font-weight: 900;
  color: var(--color-text-navy);
  line-height: 1.15;
  letter-spacing: -0.02em;
}

/* Academic Meta Grid (3 clean columns) */
.about-meta-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 12px;
}

.about-meta-item {
  background: #f8fcfe;
  border: 1px solid #bddce7;
  border-radius: 12px;
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.about-meta-label {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.about-meta-val {
  font-size: 0.95rem;
  font-weight: 800;
  color: var(--color-text-navy);
}

/* Thesis Highlight Box */
.about-thesis-card {
  background: #f4fafc;
  border: 1px solid #bddce7;
  border-radius: 16px;
  padding: 18px 22px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.about-thesis-tag {
  display: inline-block;
  color: var(--color-primary);
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.about-thesis-title {
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--color-text-dark);
  line-height: 1.5;
}

.about-thesis-summary {
  font-size: 0.88rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* Research Pillars & Innovations Grid */
.about-section-header {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  margin-top: 8px;
}

.about-section-title {
  font-size: 1.7rem;
  font-weight: 900;
  color: var(--color-text-navy);
}

.about-pillars-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}

.about-pillar-card {
  background: rgba(255, 255, 255, 0.95);
  border: 1px solid #bddce7;
  border-radius: 18px;
  padding: 22px 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  box-shadow: 0 6px 18px rgba(44, 93, 107, 0.05);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.about-pillar-card:hover {
  transform: translateY(-3px);
  border-color: var(--color-primary);
  box-shadow: 0 10px 24px rgba(56, 160, 196, 0.15);
}

.about-pillar-number {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: rgba(56, 160, 196, 0.1);
  border: 1px solid #bddce7;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--color-primary);
}

.about-pillar-title {
  font-size: 1.02rem;
  font-weight: 800;
  color: var(--color-text-navy);
}

.about-pillar-desc {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

/* Action CTA Back to Simulator */
.about-cta-card {
  background: rgba(255, 255, 255, 0.95);
  border: 1px solid #bddce7;
  border-radius: 20px;
  padding: 28px 24px;
  text-align: center;
  color: var(--color-text-navy);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  box-shadow: 0 8px 24px rgba(44, 93, 107, 0.06);
}

.about-cta-title {
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--color-text-navy);
}

.about-cta-desc {
  font-size: 0.92rem;
  color: var(--color-text-muted);
  max-width: 560px;
  line-height: 1.5;
}

.btn-about-back {
  background: var(--color-primary);
  color: #ffffff;
  font-weight: 700;
  font-size: 0.9rem;
  padding: 10px 24px;
  border-radius: 20px;
  text-decoration: none;
  border: 1.5px solid var(--color-accent-border);
  box-shadow: 0 4px 12px rgba(56, 160, 196, 0.25);
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
}

.btn-about-back:hover {
  background: var(--color-primary-hover);
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(56, 160, 196, 0.35);
}

/* About Page Media Queries */
@media (max-width: 900px) {
  .about-profile-hero-card {
    grid-template-columns: 1fr;
    padding: 26px 20px;
    gap: 24px;
    text-align: center;
  }

  .about-author-header {
    align-items: center;
  }

  .about-author-name {
    font-size: 1.85rem;
  }

  .about-meta-grid {
    text-align: left;
  }
}

@media (max-width: 480px) {
  .about-viewport {
    padding: 24px 14px 44px;
    gap: 22px;
  }

  .about-title {
    font-size: 1.75rem;
  }

  .about-subtitle {
    font-size: 0.88rem;
  }

  .about-photo-frame {
    width: 170px;
    height: 215px;
  }

  .about-author-name {
    font-size: 1.55rem;
  }

  .about-thesis-title {
    font-size: 0.94rem;
  }

  .about-thesis-summary {
    font-size: 0.82rem;
  }

  .about-section-title {
    font-size: 1.35rem;
  }

  .about-cta-title {
    font-size: 1.25rem;
  }
}