/* ==========================================================================
   Nexorin - Luxury Aesthetic Design System & Main Stylesheet
   Version: 04.5 (รูปแบบที่ 4 Fully Responsive Design)
   Brand Colors: Tiffany Blue (#0ABAB5), Aqua Glow (#38D9D6), Graphite Gray (#2D3033)
   Typography: Montserrat (EN Headings), Prompt (TH Headings & Body)
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Montserrat:ital,wght@0,300;0,400;0,500;0,600;0,700;1,300;1,400;1,500;1,600;1,700&family=Prompt:ital,wght@0,200;0,300;0,400;0,500;0,600;0,700;1,200;1,300;1,400;1,500&display=swap');

:root {
  /* Brand Color Tokens */
  --color-primary: #0ABAB5;
  /* Tiffany Blue */
  --color-primary-accent: #38D9D6;
  /* Bright Aqua Accent */
  --color-primary-hover: #089c98;
  --color-primary-light: rgba(10, 186, 181, 0.1);
  --color-primary-glow: rgba(10, 186, 181, 0.35);

  --color-text-main: #4B5563;
  /* Slate Charcoal */
  --color-text-heading: #1F2937;
  /* Deep Charcoal */
  --color-text-muted: #6B7280;

  --color-bg-base: #FFFFFF;
  --color-bg-surface: #FFFFFF;
  --color-bg-light-gray: #F4F6F8;
  /* Premium Soft Slate Gray */
  --color-bg-subtle-gray: #EBF0F5;
  /* Soft Slate Gray Accent */
  --color-bg-ice: #E8F8F8;
  /* Soft Ice Cyan for Promise Card */
  --color-bg-dark: #2D3033;
  /* Dark Footer */

  /* Glassmorphism Tokens */
  --glass-bg: rgba(255, 255, 255, 0.9);
  --glass-border: rgba(255, 255, 255, 0.7);
  --glass-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);

  /* Typography */
  --font-heading: 'Montserrat', 'Prompt', sans-serif;
  --font-body: 'Prompt', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

/* ==========================================================================
   Language Typography System
   - ภาษาไทย (TH): ใช้ฟอนต์ Prompt ในทุกองค์ประกอบของเว็บไซต์ตามดีไซน์หลัก
   - ภาษาอังกฤษ (EN): ใช้ฟอนต์ Montserrat
   ========================================================================== */
html[lang="th"],
html[lang="th"] * {
  font-family: 'Prompt', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif !important;
}

html[lang="en"] {
  --font-heading: 'Montserrat', sans-serif;
  --font-body: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

html[lang="en"],
html[lang="en"] * {
  font-family: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif !important;
}

/* Reset & Base Setup */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  color: var(--color-text-main);
  background-color: var(--color-bg-base);
  font-family: var(--font-body);
  line-height: 1.6;
}

body {
  overflow-x: hidden;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

body.menu-open {
  overflow: hidden;
}

/* Container */
.container-custom {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 max(24px, env(safe-area-inset-right)) 0 max(24px, env(safe-area-inset-left));
}

/* Typography Utilities */
h1,
h2,
h3,
h4,
.font-heading {
  font-family: var(--font-heading);
  color: var(--color-text-heading);
  line-height: 1.3;
}

.font-thai-heading {
  font-family: 'Prompt', sans-serif;
  font-weight: 600;
}

.section-tag {
  font-family: 'Montserrat', 'Prompt', sans-serif;
  color: var(--color-primary);
  font-size: clamp(1.2rem, 2.5vw, 1.7rem);
  font-weight: 500;
  letter-spacing: 0.02em;
  display: inline-block;
  margin-bottom: 14px;
}

/* Main Content Area */
.site-main {
  padding-top: 80px;
  flex: 1 0 auto;
}

/* Navbar */
.navbar-sticky {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
  padding-top: env(safe-area-inset-top);
  transition: all 0.3s ease;
}

.navbar-container {
  display: flex;
  align-items: center;
  height: 80px;
  width: 100%;
  max-width: 1920px;
  margin: 0 auto;
  padding: 0 clamp(32px, 4vw, 64px);
  box-sizing: border-box;
}

.navbar-brand-link {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  z-index: 1002;
  flex-shrink: 0;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.navbar-brand-link:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

.navbar-brand-logo {
  height: 38px;
  width: auto;
  object-fit: contain;
  display: block;
}

.desktop-nav {
  display: flex;
  align-items: center;
  gap: clamp(16px, 1.8vw, 24px);
  margin-left: auto;
}

.desktop-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-left: clamp(20px, 2.2vw, 32px);
  flex-shrink: 0;
}

.nav-link {
  text-decoration: none;
  color: var(--color-text-main);
  font-size: 0.92rem;
  font-weight: 400;
  transition: color 0.25s ease;
  white-space: nowrap;
}

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

.lang-pill-btn {
  background: transparent;
  border: 1px solid rgba(0, 0, 0, 0.15);
  border-radius: 20px;
  padding: 6px 16px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-main);
  cursor: pointer;
  transition: all 0.2s ease;
  min-height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  -webkit-tap-highlight-color: transparent;
}

.lang-pill-btn:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.btn-join {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 24px;
  background: linear-gradient(135deg, #42D5CE 0%, #16B8B3 100%);
  color: #FFFFFF;
  font-size: 0.92rem;
  font-weight: 500;
  border-radius: 30px;
  text-decoration: none;
  box-shadow: 0 4px 14px rgba(10, 186, 181, 0.3);
  transition: all 0.3s ease;
  white-space: nowrap;
  border: none;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

.btn-join:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(10, 186, 181, 0.45);
}

/* Mobile Hamburger Button with 44x44px accessible touch target */
.mobile-menu-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: transparent;
  border: none;
  cursor: pointer;
  z-index: 1002;
  padding: 0;
  border-radius: 8px;
  -webkit-tap-highlight-color: transparent;
  transition: background-color 0.2s ease;
}

.mobile-menu-toggle:hover {
  background-color: rgba(10, 186, 181, 0.08);
}

.hamburger-box {
  width: 26px;
  height: 18px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.hamburger-bar {
  width: 100%;
  height: 2px;
  background-color: var(--color-text-heading);
  border-radius: 2px;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.mobile-menu-toggle.active .hamburger-bar:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
  background-color: var(--color-primary);
}

.mobile-menu-toggle.active .hamburger-bar:nth-child(2) {
  opacity: 0;
}

.mobile-menu-toggle.active .hamburger-bar:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
  background-color: var(--color-primary);
}

/* Mobile Nav Drawer */
.mobile-nav-drawer {
  position: fixed;
  top: 80px;
  left: 0;
  right: 0;
  bottom: 0;
  height: calc(100dvh - 80px);
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  z-index: 1001;
  display: flex;
  flex-direction: column;
  transform: translateY(-100%);
  opacity: 0;
  pointer-events: none;
  transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

.mobile-nav-drawer.open {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}

.mobile-nav-inner {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 100%;
  padding: 24px 24px calc(30px + env(safe-area-inset-bottom)) 24px;
}

.mobile-nav-links {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.mobile-nav-link {
  text-decoration: none;
  color: var(--color-text-heading);
  font-size: 1.1rem;
  font-weight: 500;
  padding: 14px 0;
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
  transition: color 0.2s ease, padding-left 0.2s ease;
  -webkit-tap-highlight-color: transparent;
}

.mobile-nav-link:hover {
  color: var(--color-primary);
  padding-left: 8px;
}

.mobile-nav-footer {
  margin-top: 36px;
  padding-top: 20px;
  border-top: 1px solid rgba(0, 0, 0, 0.08);
}

/* Hero Section */
.hero-wrapper {
  width: 100%;
  position: relative;
  background-color: #0b1118;
  overflow: hidden;
}

.hero-video-container,
.hero-image-container {
  width: 100%;
  max-width: 100%;
  margin: 0 auto;
  overflow: hidden;
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  background-color: #0b1118;
  min-height: 520px;
}

.hero-video-container video,
.hero-image-container video,
.hero-banner-video,
.hero-image-container img {
  width: 100%;
  height: 100%;
  min-height: 520px;
  max-height: 680px;
  display: block;
  object-fit: cover;
  object-position: center center;
  pointer-events: none;
}

/* Hero Video Scrim Overlay */
.hero-video-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg,
      rgba(15, 23, 42, 0.45) 0%,
      rgba(15, 23, 42, 0.35) 45%,
      rgba(15, 23, 42, 0.65) 100%);
  pointer-events: none;
  z-index: 1;
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.hero-video-overlay.is-hidden {
  opacity: 0;
}

/* Hero Content Floating Overlay */
.hero-content-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
  padding: 40px 24px;
  text-align: center;
  pointer-events: none;
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.8s ease;
}

.hero-content-overlay.is-hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.hero-content-inner {
  max-width: 880px;
  width: 100%;
  margin: 0 auto;
  pointer-events: auto;
  padding: 36px 32px;
  border-radius: 24px;
  background: rgba(15, 23, 42, 0.32);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.14);
  box-shadow: 0 20px 48px rgba(0, 0, 0, 0.28);
  transition: transform 0.8s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.hero-content-overlay.is-hidden .hero-content-inner {
  transform: translateY(16px) scale(0.98);
  opacity: 0;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 18px;
  border-radius: 999px;
  background: rgba(10, 186, 181, 0.18);
  border: 1px solid rgba(56, 217, 214, 0.5);
  margin-bottom: 18px;
}

.hero-badge-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: #38D9D6;
  box-shadow: 0 0 10px #38D9D6;
}

.hero-brand-name {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  color: #FFFFFF;
  text-transform: uppercase;
}

.hero-main-title {
  font-family: var(--font-heading);
  font-size: clamp(1.85rem, 3.8vw, 3.2rem);
  font-weight: 500;
  line-height: 1.25;
  color: #FFFFFF;
  margin: 0 auto 10px auto;
  letter-spacing: -0.01em;
  text-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

.hero-title-accent {
  color: #38D9D6;
  font-weight: 600;
}

.hero-sub-tagline {
  font-family: var(--font-body);
  font-size: clamp(1rem, 1.8vw, 1.25rem);
  font-weight: 300;
  color: rgba(255, 255, 255, 0.92);
  margin: 0 auto 20px auto;
  letter-spacing: 0.01em;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.45);
}

.hero-desc-lead {
  font-family: var(--font-body);
  font-size: clamp(0.92rem, 1.6vw, 1.1rem);
  font-weight: 300;
  color: rgba(243, 244, 246, 0.92);
  line-height: 1.85;
  max-width: 740px;
  margin: 0 auto;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.4);
}

/* Quote & Philosophy Section */
.quote-section {
  padding: 90px 0;
  position: relative;
  background: linear-gradient(180deg, var(--color-bg-light-gray) 0%, #FFFFFF 100%);
  overflow: hidden;
}

.topo-lines-bg {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 100%;
  height: 100%;
  pointer-events: none;
  opacity: 0.55;
  z-index: 1;
}

.quote-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 880px;
  margin: 0 auto;
}

.quote-heading {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 3.4vw, 3rem);
  font-weight: 400;
  line-height: 1.35;
  color: #2D3748;
  margin-bottom: 28px;
  letter-spacing: -0.01em;
}

.quote-science {
  color: #38C7C2;
  font-style: italic;
  font-weight: 500;
}

.philosophy-badge-wrapper {
  display: flex;
  justify-content: center;
  margin-bottom: 24px;
}

.philosophy-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 18px;
  background: rgba(10, 186, 181, 0.08);
  border: 1px solid rgba(10, 186, 181, 0.25);
  border-radius: 999px;
  box-shadow: 0 4px 16px rgba(10, 186, 181, 0.06);
}

.philosophy-badge-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-primary);
  box-shadow: 0 0 10px var(--color-primary);
  animation: pulseGlow 2.5s infinite;
}

.philosophy-badge span {
  font-family: var(--font-heading);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--color-primary);
  text-transform: uppercase;
}

.quote-desc-container {
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-width: 820px;
  margin: 0 auto;
}

.quote-desc {
  font-size: clamp(0.96rem, 1.8vw, 1.08rem);
  color: #4A5568;
  line-height: 1.85;
  margin: 0 auto;
}

.quote-desc.quote-desc-sub {
  color: #64748B;
  font-size: clamp(0.92rem, 1.7vw, 1.02rem);
}

/* Vision Section */
.vision-section {
  padding: 80px 0 100px 0;
  background-color: #F8FCFC;
}

.vision-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 50px;
}

.vision-title {
  font-size: clamp(1.8rem, 2.8vw, 2.7rem);
  font-weight: 600;
  color: #1A202C;
  margin-bottom: 24px;
  line-height: 1.25;
}

.vision-desc {
  font-size: clamp(0.92rem, 1.8vw, 0.98rem);
  color: #4A5568;
  line-height: 1.9;
}

.vision-img-frame {
  width: 100%;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.07);
}

.vision-img-frame img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

/* Core Values Section (N-E-X-O-R-I-N Acronym) */
.values-section {
  padding: 100px 0 110px 0;
  background: radial-gradient(circle at 50% 0%, rgba(232, 248, 248, 0.7) 0%, #FFFFFF 65%);
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid rgba(10, 186, 181, 0.1);
}

.values-ambient-glow {
  position: absolute;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(56, 217, 214, 0.08) 0%, transparent 70%);
  pointer-events: none;
  z-index: 1;
}

.values-glow-left {
  top: -100px;
  left: -150px;
}

.values-glow-right {
  bottom: -150px;
  right: -150px;
}

.values-header {
  text-align: center;
  max-width: 960px;
  margin: 0 auto 16px auto;
  position: relative;
  z-index: 2;
}

.values-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 18px;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid rgba(10, 186, 181, 0.25);
  border-radius: 999px;
  box-shadow: 0 4px 18px rgba(10, 186, 181, 0.08);
  margin-bottom: 12px;
}

.values-badge-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-primary);
  box-shadow: 0 0 10px var(--color-primary);
  animation: pulseGlow 2.5s infinite;
}

.values-badge span {
  font-family: var(--font-heading);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--color-primary);
  text-transform: uppercase;
}

.values-title {
  font-size: clamp(1.6rem, 2.4vw, 2.25rem);
  font-weight: 600;
  color: #1A202C;
  margin-bottom: 8px;
  line-height: 1.35;
}

.values-subtitle {
  font-size: clamp(0.86rem, 1.1vw, 0.95rem);
  color: #5A6578;
  line-height: 1.6;
  max-width: 720px;
  margin: 0 auto 14px auto;
}

.values-decoder-bar {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 8px 10px;
  max-width: 1240px;
  margin: 0 auto;
}

.decoder-pill {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 5px 14px 5px 5px;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(10, 186, 181, 0.22);
  border-radius: 999px;
  box-shadow: 0 3px 12px rgba(10, 186, 181, 0.05);
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  text-decoration: none;
  cursor: pointer;
  user-select: none;
  line-height: 1.35;
}

.decoder-pill:hover {
  transform: translateY(-2px);
  border-color: var(--color-primary);
  background: #FFFFFF;
  box-shadow: 0 6px 18px rgba(10, 186, 181, 0.15);
}

.decoder-char {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-accent) 100%);
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.8rem;
  box-shadow: 0 2px 6px rgba(10, 186, 181, 0.25);
  flex-shrink: 0;
}

.decoder-name {
  font-family: var(--font-heading);
  font-size: 0.82rem;
  font-weight: 600;
  color: #1F2937;
  letter-spacing: -0.01em;
  line-height: 1.35;
}

.decoder-thai {
  font-family: var(--font-body);
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--color-primary);
  line-height: 1.35;
  margin-left: 2px;
}

/* ==========================================================================
   Stacking Cards System (N-E-X-O-R-I-N Core Values)
   Luminous Frosted Glass Deck & Continuous Smooth Mouse-Wheel Progression
   ========================================================================== */

.stacking-cards-section {
  position: relative;
  background: radial-gradient(circle at 50% 0%, rgba(232, 248, 248, 0.85) 0%, var(--color-bg-light-gray) 70%);
  overflow: visible;
  border-bottom: 1px solid rgba(10, 186, 181, 0.12);
}

/* Sticky Viewport on Desktop for Continuous Pinned Scroll */
@media (min-width: 900px) {
  .stacking-cards-section {
    height: 420vh;
    /* Smooth mouse scroll track with comfortable dwell time */
  }

  .stacking-sticky-viewport {
    position: sticky;
    top: 0;
    height: 100vh;
    max-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    padding: max(38px, 4.5vh) 0 max(24px, 2.5vh) 0;
    box-sizing: border-box;
  }

  .stacking-sticky-viewport .container-custom {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    height: auto;
    width: 100%;
    max-width: 1320px;
    box-sizing: border-box;
  }

  .stacking-cards-stage {
    position: relative;
    width: 100%;
    max-width: 1200px;
    height: clamp(450px, 54vh, 520px);
    margin: 14px auto 0 auto;
    perspective: 1200px;
    flex-shrink: 0;
  }

  .stacking-card-item {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    will-change: transform, opacity;
    transform-style: preserve-3d;
  }
}

/* Stacking Card Box (Aspect-Video / Luxury Deck Frosted Glass) */
.stacking-card-box {
  box-sizing: border-box;
  width: 100%;
  max-width: 1200px;
  height: 100%;
  border-radius: 28px;
  padding: 24px 38px;
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1.5px solid rgba(10, 186, 181, 0.26);
  box-shadow: 0 18px 44px -10px rgba(10, 186, 181, 0.14),
    0 6px 20px -4px rgba(0, 0, 0, 0.04),
    inset 0 1px 0 rgba(255, 255, 255, 0.95);
  position: relative;
  overflow: hidden;
  transform-style: preserve-3d;
  will-change: transform;
  transition: box-shadow 0.4s ease, border-color 0.4s ease;
}

/* สำหรับจอ Desktop ขนาดใหญ่ (>= 1440px) ให้การ์ดยาวโอ่อ่าและโปร่งสบายตาขั้นสุด */
@media (min-width: 1440px) {
  .stacking-sticky-viewport .container-custom {
    max-width: 1400px;
  }

  .stacking-cards-stage {
    max-width: 1260px;
    height: clamp(480px, 56vh, 560px);
    margin-top: 18px;
  }

  .stacking-card-box {
    max-width: 1260px;
    padding: 28px 44px;
    gap: 36px;
  }

  .stacking-desc {
    max-width: 520px;
    font-size: 0.98rem;
  }
}

/* Specular Sheen Following Mouse Cursor */
.stacking-card-box::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: radial-gradient(650px circle at var(--sheen-x, 50%) var(--sheen-y, 50%),
      rgba(255, 255, 255, 0.65) 0%,
      rgba(56, 217, 214, 0.14) 40%,
      transparent 70%);
  opacity: 0;
  pointer-events: none;
  z-index: 1;
  transition: opacity 0.4s ease;
}

.stacking-card-box:hover::before {
  opacity: 1;
}

.stacking-card-box:hover {
  border-color: rgba(10, 186, 181, 0.45);
  box-shadow: 0 22px 50px -10px rgba(10, 186, 181, 0.2),
    0 8px 24px -4px rgba(0, 0, 0, 0.05),
    inset 0 1px 0 rgba(255, 255, 255, 1);
}

/* Light Frosted Glass Tints (Pure White & Tiffany/Ice Cyan Undertones) */
.stack-light-1 {
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.98) 0%, rgba(242, 253, 252, 0.94) 100%);
}

.stack-light-2 {
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.98) 0%, rgba(235, 250, 249, 0.94) 100%);
}

.stack-light-3 {
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.98) 0%, rgba(228, 248, 247, 0.94) 100%);
}

.stack-light-4 {
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.98) 0%, rgba(238, 251, 250, 0.94) 100%);
}

.stack-light-5 {
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.98) 0%, rgba(232, 248, 247, 0.94) 100%);
}

.stack-light-6 {
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.98) 0%, rgba(225, 246, 245, 0.94) 100%);
}

.stack-light-7 {
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.98) 0%, rgba(216, 244, 243, 0.95) 100%);
}

/* Outro Climax Box */
.stack-outro-box {
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.98) 0%, rgba(222, 247, 246, 0.96) 100%);
  border: 1.5px solid rgba(10, 186, 181, 0.38);
  box-shadow: 0 25px 60px -10px rgba(10, 186, 181, 0.2), 0 0 0 1px rgba(56, 217, 214, 0.25);
  justify-content: center;
  text-align: center;
}

/* Left Content Section */
.stacking-content {
  flex: 1.1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  z-index: 2;
}

.stacking-icon-wrap {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(10, 186, 181, 0.12) 0%, rgba(56, 217, 214, 0.22) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 10px;
  border: 1.5px solid rgba(10, 186, 181, 0.35);
  box-shadow: 0 4px 14px rgba(10, 186, 181, 0.12);
}

.stacking-letter {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 700;
  color: #0ABAB5;
  line-height: 1;
}

.stacking-tag-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 8px;
}

.stacking-letter-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  background: rgba(10, 186, 181, 0.08);
  border: 1px solid rgba(10, 186, 181, 0.24);
  border-radius: 999px;
  font-family: var(--font-heading);
  font-size: 0.74rem;
  font-weight: 600;
  color: #088F8B;
  text-transform: uppercase;
}

.stacking-meaning-badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 12px;
  background: linear-gradient(135deg, rgba(10, 186, 181, 0.12), rgba(56, 217, 214, 0.2));
  border: 1px solid rgba(10, 186, 181, 0.32);
  border-radius: 999px;
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 600;
  color: #088F8B;
}

.stacking-title {
  font-family: var(--font-heading);
  font-size: clamp(1.35rem, 1.8vw, 1.75rem);
  font-weight: 700;
  color: #1F2937;
  margin-bottom: 12px;
  line-height: 1.35;
}

.stacking-letter-prefix {
  color: #0ABAB5;
}

.stacking-desc {
  font-family: var(--font-body);
  font-size: clamp(0.85rem, 1.05vw, 0.94rem);
  color: #4B5563;
  line-height: 1.75;
  max-width: 460px;
}

/* Right Image Section */
.stacking-image-wrap {
  width: 46%;
  height: 100%;
  max-height: 100%;
  border-radius: 18px;
  overflow: hidden;
  position: relative;
  box-shadow: 0 8px 24px rgba(10, 186, 181, 0.08);
  border: 1px solid rgba(10, 186, 181, 0.18);
  aspect-ratio: 16 / 10;
}

.stacking-image-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10, 186, 181, 0.08) 0%, transparent 60%);
  border-radius: 18px;
  z-index: 2;
  pointer-events: none;
}

.stacking-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  border-radius: 18px;
  transition: transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

.stacking-card-box:hover .stacking-img {
  transform: scale(1.04);
}

/* Outro Content inside Final Stack Card */
.stacking-outro-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 14px 24px;
  max-width: 720px;
  margin: 0 auto;
}

.stacking-outro-title {
  font-family: var(--font-heading);
  font-size: clamp(1.55rem, 2.4vw, 2.2rem);
  font-weight: 700;
  color: #1F2937;
  line-height: 1.25;
  margin-bottom: 8px;
}

.stacking-outro-highlight {
  color: #0ABAB5;
  font-style: italic;
  font-weight: 600;
}

.stacking-outro-desc {
  font-family: var(--font-body);
  font-size: clamp(0.85rem, 1.05vw, 0.94rem);
  color: #4B5563;
  line-height: 1.6;
  max-width: 580px;
  margin: 0 auto;
}

/* Active Highlight for Decoder Pills */
.decoder-pill.active {
  background: linear-gradient(135deg, #0ABAB5 0%, #089E9A 100%);
  border-color: #0ABAB5;
  box-shadow: 0 4px 18px rgba(10, 186, 181, 0.38);
  transform: translateY(-2px);
}

.decoder-pill.active .decoder-char {
  background: #FFFFFF;
  color: #0ABAB5;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.14);
}

.decoder-pill.active .decoder-name {
  color: #FFFFFF;
  font-weight: 700;
}

.decoder-pill.active .decoder-thai {
  color: rgba(255, 255, 255, 0.95);
}

/* Responsive Styles for Stacking Cards */
@media (max-width: 899px) {
  .stacking-cards-section {
    height: auto !important;
    padding: 50px 0 45px 0 !important;
    overflow: visible !important;
    overflow-x: clip !important;
    width: 100% !important;
    max-width: 100vw !important;
  }

  .values-ambient-glow {
    display: none !important;
  }

  .values-subtitle {
    margin-bottom: 20px !important;
  }

  /* Horizontal Touch-Scroll Decoder Bar on Mobile (Strictly Contained) */
  .values-decoder-bar {
    display: flex !important;
    flex-wrap: nowrap !important;
    overflow-x: auto !important;
    -webkit-overflow-scrolling: touch !important;
    justify-content: flex-start !important;
    gap: 10px !important;
    padding: 6px 4px 14px 4px !important;
    margin: 0 auto 18px auto !important;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
    scrollbar-width: none !important;
  }

  .values-decoder-bar::-webkit-scrollbar {
    display: none !important;
  }

  .decoder-pill {
    flex-shrink: 0 !important;
    white-space: nowrap !important;
    padding: 6px 16px 6px 6px !important;
  }

  .stacking-sticky-viewport {
    position: relative !important;
    height: auto !important;
    overflow: visible !important;
    padding: 0 !important;
    width: 100% !important;
    max-width: 100% !important;
  }

  .stacking-cards-stage {
    position: relative !important;
    width: 100% !important;
    max-width: 100% !important;
    height: auto !important;
    display: flex !important;
    flex-direction: column !important;
    gap: 0 !important;
    margin-top: 20px !important;
    padding: 0 0 30px 0 !important;
    box-sizing: border-box !important;
    overflow: visible !important;
  }

  .stacking-counter {
    display: none !important;
  }

  /* Stacking Cards Item on Mobile: Smooth Scroll-Driven Upward Motion */
  .stacking-card-item {
    position: relative !important;
    top: auto !important;
    inset: auto !important;
    width: 100% !important;
    max-width: 100% !important;
    height: auto !important;
    margin-bottom: 24px !important;
    box-sizing: border-box !important;
    overflow: visible !important;
    will-change: transform, opacity;
    transform-origin: center center;
    scroll-margin-top: 86px;
  }

  .stacking-card-box {
    width: 100% !important;
    max-width: 100% !important;
    flex-direction: column-reverse !important;
    height: auto !important;
    padding: 24px 18px !important;
    gap: 18px !important;
    box-sizing: border-box !important;
    border-radius: 24px !important;
    background: rgba(255, 255, 255, 0.96) !important;
    backdrop-filter: blur(20px) !important;
    -webkit-backdrop-filter: blur(20px) !important;
    border: 1.5px solid rgba(10, 186, 181, 0.28) !important;
    box-shadow: 0 12px 32px -8px rgba(10, 186, 181, 0.14),
      0 4px 14px -2px rgba(15, 23, 42, 0.04),
      inset 0 1px 0 rgba(255, 255, 255, 0.95) !important;
    overflow: hidden !important;
  }

  .stacking-content {
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
    overflow: hidden !important;
  }

  .stacking-image-wrap {
    width: 100% !important;
    max-width: 100% !important;
    height: auto !important;
    aspect-ratio: 16 / 9 !important;
    border-radius: 16px !important;
    box-sizing: border-box !important;
    overflow: hidden !important;
  }

  .stacking-img {
    width: 100% !important;
    max-width: 100% !important;
    height: 100% !important;
    object-fit: cover !important;
    border-radius: 16px !important;
    display: block !important;
  }

  .stacking-title {
    font-size: 1.35rem !important;
    word-break: break-word !important;
    overflow-wrap: break-word !important;
  }

  .stacking-desc {
    max-width: none !important;
  }
}

@media (max-width: 640px) {
  .stacking-cards-section {
    padding: 45px 0 35px 0 !important;
  }

  .stacking-card-box {
    padding: 18px 14px !important;
    border-radius: 20px !important;
    gap: 14px !important;
  }

  .stacking-image-wrap {
    border-radius: 14px !important;
  }

  .stacking-img {
    border-radius: 14px !important;
  }

  .stacking-icon-wrap {
    width: 40px !important;
    height: 40px !important;
    margin-bottom: 10px !important;
  }

  .stacking-letter {
    font-size: 1.15rem !important;
  }

  .stacking-title {
    font-size: 1.25rem !important;
    word-break: break-word !important;
    overflow-wrap: break-word !important;
    margin-bottom: 8px !important;
  }

  .stacking-tag-row {
    gap: 6px !important;
    margin-bottom: 8px !important;
  }

  .stacking-letter-badge,
  .stacking-meaning-badge {
    font-size: 0.74rem !important;
    padding: 3px 8px !important;
  }

  .stacking-desc {
    font-size: 0.88rem !important;
    line-height: 1.65 !important;
  }

  .stacking-outro-content {
    padding: 16px 12px !important;
  }

  .stacking-outro-title {
    font-size: 1.55rem !important;
  }

  .stacking-outro-desc {
    font-size: 0.88rem !important;
  }
}

/* Fallback for ultra-short mobile viewports (e.g. landscape mode) */
@media (max-width: 899px) and (max-height: 520px) {
  .stacking-card-item {
    position: relative !important;
    top: auto !important;
    margin-bottom: 20px !important;
  }
}

/* Mission Section */
.mission-section {
  padding: 90px 0;
  background-color: var(--color-bg-light-gray);
  position: relative;
}

.mission-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 40px;
  align-items: center;
}

.mission-pill-card {
  background: #FFFFFF;
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 36px;
  padding: 18px 28px;
  margin-bottom: 16px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.03);
  transition: all 0.3s ease;
}

.mission-pill-card:hover {
  transform: translateX(6px);
  border-color: rgba(10, 186, 181, 0.4);
  box-shadow: 0 8px 24px rgba(10, 186, 181, 0.08);
}

.mission-pill-title {
  font-size: clamp(0.95rem, 2vw, 1.05rem);
  font-weight: 600;
  color: #1F2937;
  margin-bottom: 6px;
}

.mission-pill-desc {
  font-size: clamp(0.82rem, 1.8vw, 0.88rem);
  color: #6B7280;
  line-height: 1.6;
}

.mission-media-frame {
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.08);
}

.mission-media-frame img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

/* Expertise Section */
.expertise-section {
  padding: 90px 0;
  background: linear-gradient(180deg, var(--color-bg-light-gray) 0%, #F8FCFC 100%);
}

.expertise-header {
  text-align: right;
  margin-bottom: 50px;
}

.expertise-title {
  font-size: clamp(1.8rem, 3vw, 2.7rem);
  font-weight: 600;
  color: #1A202C;
}

.expertise-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 40px;
  align-items: center;
}

.expertise-media-frame {
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.08);
}

.expertise-media-frame img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

.expertise-card {
  background: #FFFFFF;
  border-radius: 20px;
  padding: 18px 24px;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 18px;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.03);
  border: 1px solid rgba(0, 0, 0, 0.06);
  transition: all 0.3s ease;
}

.expertise-card:hover {
  transform: translateY(-4px);
  border-color: rgba(10, 186, 181, 0.35);
  box-shadow: 0 10px 28px rgba(10, 186, 181, 0.08);
}

.expertise-icon-box {
  width: 52px;
  height: 52px;
  min-width: 52px;
  border-radius: 50%;
  background: rgba(10, 186, 181, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
}

.expertise-icon-box svg {
  width: 26px;
  height: 26px;
  fill: var(--color-primary);
  stroke: var(--color-primary);
}

.expertise-card-title {
  font-size: clamp(1rem, 2vw, 1.1rem);
  font-weight: 700;
  color: #111827;
  margin-bottom: 4px;
}

.expertise-card-desc {
  font-size: clamp(0.82rem, 1.8vw, 0.86rem);
  color: #6B7280;
  line-height: 1.5;
}

/* Promise Section */
.promise-section {
  padding: 90px 0 110px 0;
  background-color: #FFFFFF;
  position: relative;
}

.promise-card {
  background: linear-gradient(145deg, #F0FBFB 0%, #E2F6F5 100%);
  border: 1px solid rgba(10, 186, 181, 0.28);
  border-radius: 36px;
  padding: 64px 60px;
  box-shadow: 0 16px 40px rgba(10, 186, 181, 0.08), 0 2px 8px rgba(0, 0, 0, 0.02);
  position: relative;
  overflow: hidden;
}

.promise-badge-wrapper {
  display: flex;
  margin-bottom: 20px;
}

.promise-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 18px;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(10, 186, 181, 0.3);
  border-radius: 999px;
  box-shadow: 0 4px 14px rgba(10, 186, 181, 0.08);
}

.promise-badge-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-primary);
  box-shadow: 0 0 10px var(--color-primary);
  animation: pulseGlow 2.5s infinite;
}

.promise-badge span {
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--color-primary);
  text-transform: uppercase;
}

.promise-title {
  font-family: var(--font-heading);
  font-size: clamp(1.7rem, 2.8vw, 2.5rem);
  font-weight: 600;
  color: #1F2937;
  margin: 0 0 24px 0;
  line-height: 1.35;
  letter-spacing: -0.01em;
}

.promise-body {
  margin-bottom: 32px;
}

.promise-desc-p {
  font-size: clamp(0.96rem, 1.8vw, 1.06rem);
  color: #374151;
  line-height: 1.85;
  margin-bottom: 16px;
}

.promise-desc-p:last-child {
  margin-bottom: 0;
}

.promise-motto-box {
  padding: 24px 30px;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-left: 4px solid var(--color-primary);
  border-top: 1px solid rgba(10, 186, 181, 0.2);
  border-right: 1px solid rgba(10, 186, 181, 0.2);
  border-bottom: 1px solid rgba(10, 186, 181, 0.2);
  border-radius: 18px;
  box-shadow: 0 8px 24px rgba(10, 186, 181, 0.08);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.promise-motto-tag {
  font-size: 0.76rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--color-primary);
}

.promise-motto-text {
  font-family: var(--font-heading);
  font-size: clamp(1.04rem, 2vw, 1.25rem);
  font-weight: 600;
  color: #1A202C;
  line-height: 1.55;
  margin: 0;
}

.btn-discover {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 34px;
  background: linear-gradient(135deg, #42D5CE 0%, #16B8B3 100%);
  color: #FFFFFF;
  font-size: 0.95rem;
  font-weight: 500;
  border-radius: 30px;
  text-decoration: none;
  box-shadow: 0 6px 20px rgba(10, 186, 181, 0.35);
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
}

.btn-discover:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(10, 186, 181, 0.45);
}

/* Footer */
.footer-dark {
  background-color: #2D3033;
  color: #E5E7EB;
  padding: 70px 0 calc(30px + env(safe-area-inset-bottom)) 0;
  margin-top: auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1.2fr;
  gap: 48px;
  margin-bottom: 50px;
}

.footer-brand-title {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  font-weight: 700;
  color: #FFFFFF;
  letter-spacing: 0.08em;
  display: inline-block;
  margin-bottom: 18px;
}

.footer-brand-desc {
  color: #9CA3AF;
  font-size: 0.95rem;
  line-height: 1.75;
  max-width: 440px;
}

.footer-col-title {
  font-size: 1.05rem;
  font-weight: 600;
  color: #FFFFFF;
  margin-bottom: 20px;
}

.footer-links-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  font-size: 0.95rem;
}

.footer-link {
  text-decoration: none;
  color: #9CA3AF;
  transition: color 0.2s ease;
  display: inline-block;
}

.footer-link:hover {
  color: var(--color-primary);
}

.footer-bottom-bar {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 0.85rem;
  color: #9CA3AF;
}

.footer-legal-links {
  display: flex;
  gap: 24px;
  align-items: center;
}

.footer-legal-link {
  text-decoration: none;
  color: #9CA3AF;
  transition: color 0.2s ease;
}

.footer-legal-link:hover {
  color: #FFFFFF;
}

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */

/* Laptop / Medium Desktops (1024px - 1199px) */
@media (min-width: 1024px) and (max-width: 1199px) {
  .navbar-container {
    padding: 0 24px;
  }

  .desktop-nav {
    gap: 12px;
  }

  .nav-link {
    font-size: 0.82rem;
  }

  .desktop-actions {
    margin-left: 14px;
    gap: 12px;
  }

  .btn-join {
    padding: 8px 16px;
    font-size: 0.85rem;
  }
}

/* Tablet & Smaller Screens (<= 1080px) */
@media (max-width: 1080px) {
  .navbar-container {
    padding: 0 max(24px, env(safe-area-inset-right)) 0 max(24px, env(safe-area-inset-left));
    justify-content: space-between;
  }

  .desktop-nav,
  .desktop-actions {
    display: none !important;
  }

  .mobile-menu-toggle {
    display: flex;
    margin-left: auto;
  }

  .vision-grid,
  .mission-grid,
  .expertise-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .expertise-header {
    text-align: left;
    margin-bottom: 36px;
  }

  .vision-img-frame,
  .mission-media-frame,
  .expertise-media-frame {
    max-width: 600px;
    margin: 0 auto;
    max-height: 420px;
  }

  .vision-img-frame img,
  .mission-media-frame img,
  .expertise-media-frame img {
    height: 100%;
    max-height: 420px;
    object-fit: cover;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
  }
}

/* Mobile Devices (<= 767px) */
@media (max-width: 767px) {
  .site-main {
    padding-top: 68px;
  }

  .container-custom {
    padding: 0 max(18px, env(safe-area-inset-right)) 0 max(18px, env(safe-area-inset-left));
  }

  .navbar-container {
    height: 68px;
    padding: 0 max(18px, env(safe-area-inset-right)) 0 max(18px, env(safe-area-inset-left));
  }

  .mobile-nav-drawer {
    top: 68px;
    height: calc(100dvh - 68px);
  }

  .navbar-brand-logo {
    height: 30px;
  }

  .hero-video-container,
  .hero-image-container {
    min-height: 480px;
  }

  .hero-video-container video,
  .hero-image-container video,
  .hero-banner-video,
  .hero-image-container img {
    min-height: 480px;
    height: 480px;
    border-radius: 0;
    object-position: center center;
  }

  .hero-content-overlay {
    padding: 24px 16px;
  }

  .hero-content-inner {
    padding: 28px 20px;
    border-radius: 20px;
  }

  .hero-badge {
    margin-bottom: 14px;
    padding: 5px 14px;
  }

  .hero-main-title {
    margin-bottom: 8px;
  }

  .hero-sub-tagline {
    margin-bottom: 16px;
  }

  .quote-section {
    padding: 60px 0 50px 0;
  }

  .topo-lines-bg {
    opacity: 0.45;
  }

  .vision-section {
    padding: 50px 0 60px 0;
  }

  .mission-section {
    padding: 50px 0 60px 0;
  }

  .mission-pill-card {
    padding: 16px 20px;
    border-radius: 20px;
    margin-bottom: 12px;
  }

  .mission-pill-card:hover {
    transform: none;
  }

  .expertise-section {
    padding: 50px 0 60px 0;
  }

  .expertise-card {
    padding: 16px 18px;
    gap: 14px;
    border-radius: 16px;
  }

  .expertise-icon-box {
    width: 44px;
    height: 44px;
    min-width: 44px;
  }

  .expertise-icon-box svg {
    width: 22px;
    height: 22px;
  }

  .vision-img-frame,
  .mission-media-frame,
  .expertise-media-frame {
    max-height: 320px;
    border-radius: 16px;
  }

  .vision-img-frame img,
  .mission-media-frame img,
  .expertise-media-frame img {
    max-height: 320px;
  }

  .promise-section {
    padding: 50px 0 60px 0;
  }

  .promise-card {
    padding: 36px 20px;
    border-radius: 24px;
  }

  .promise-motto-box {
    padding: 20px 18px;
    border-radius: 14px;
    margin-top: 24px;
  }

  .btn-discover {
    width: 100%;
  }

  .footer-dark {
    padding: 50px 0 calc(24px + env(safe-area-inset-bottom)) 0;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer-bottom-bar {
    flex-direction: column;
    text-align: center;
    gap: 14px;
  }

  .footer-legal-links {
    justify-content: center;
    gap: 20px;
  }
}

/* Small Smartphone Displays (<= 480px) */
@media (max-width: 480px) {
  .navbar-container {
    padding: 0 max(16px, env(safe-area-inset-right)) 0 max(16px, env(safe-area-inset-left));
  }

  .container-custom {
    padding: 0 max(16px, env(safe-area-inset-right)) 0 max(16px, env(safe-area-inset-left));
  }

  .quote-heading {
    font-size: 1.55rem;
  }

  .vision-title,
  .expertise-title {
    font-size: 1.55rem;
  }

  .promise-title {
    font-size: 1.3rem;
  }

  .promise-card {
    padding: 28px 16px;
    border-radius: 20px;
  }

  .promise-motto-box {
    padding: 16px 14px;
    border-radius: 12px;
    margin-top: 18px;
  }

  .mission-pill-card {
    padding: 14px 16px;
    border-radius: 16px;
  }

  .expertise-card {
    padding: 14px 14px;
    gap: 12px;
  }

  .vision-img-frame,
  .mission-media-frame,
  .expertise-media-frame {
    max-height: 260px;
  }

  .vision-img-frame img,
  .mission-media-frame img,
  .expertise-media-frame img {
    max-height: 260px;
  }

  .hero-video-container,
  .hero-image-container,
  .hero-banner-video {
    min-height: 460px;
    height: 460px;
  }

  .hero-content-inner {
    padding: 24px 16px;
  }

  .hero-main-title {
    font-size: 1.55rem;
    line-height: 1.3;
  }

  .hero-sub-tagline {
    font-size: 0.92rem;
  }

  .hero-desc-lead {
    font-size: 0.88rem;
    line-height: 1.7;
  }
}

/* ==========================================================================
   Nexorin - Insights & News Section (#insights)
   ========================================================================== */
.insights-section {
  padding: 100px 0 90px;
  background: linear-gradient(180deg, var(--color-bg-light-gray) 0%, var(--color-bg-subtle-gray) 100%);
  position: relative;
  border-top: 1px solid rgba(0, 0, 0, 0.04);
}

.insights-header-wrapper {
  text-align: center;
  max-width: 780px;
  margin: 0 auto 56px;
}

.insights-badge-wrap {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: 999px;
  background: rgba(10, 186, 181, 0.08);
  border: 1px solid rgba(10, 186, 181, 0.25);
  margin-bottom: 16px;
}

.insights-badge-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: var(--color-primary);
  box-shadow: 0 0 10px var(--color-primary-glow);
}

.insights-badge-text {
  font-family: 'Montserrat', sans-serif;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--color-primary);
  text-transform: uppercase;
}

.insights-main-title {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 700;
  color: var(--color-text-heading);
  line-height: 1.25;
  margin-bottom: 14px;
}

.insights-sub-title {
  font-size: 1.05rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* Insights Articles Grid */
.insights-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 32px;
  margin-bottom: 0;
}

.article-card {
  background: #FFFFFF;
  border: 1px solid rgba(0, 0, 0, 0.06);
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.04);
  display: flex;
  flex-direction: column;
  cursor: pointer;
  outline: none;
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.35s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.35s ease;
}

.article-card:hover,
.article-card:focus-visible {
  transform: translateY(-6px);
  border-color: rgba(10, 186, 181, 0.4);
  box-shadow: 0 18px 40px rgba(10, 186, 181, 0.12);
}

.article-card-thumb-wrap {
  width: 100%;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  position: relative;
  background: #111827;
}

.article-card-thumb {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.article-card:hover .article-card-thumb {
  transform: scale(1.05);
}

.article-card-badge {
  position: absolute;
  top: 16px;
  left: 16px;
  padding: 5px 12px;
  border-radius: 999px;
  background: rgba(15, 23, 42, 0.7);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  color: var(--color-primary-accent);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  border: 1px solid rgba(10, 186, 181, 0.35);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.article-card-content {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.article-card-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  color: var(--color-text-muted);
  margin-bottom: 12px;
}

.article-card-dot {
  color: #D1D5DB;
}

.article-card-title {
  font-size: 1.18rem;
  font-weight: 600;
  color: var(--color-text-heading);
  line-height: 1.45;
  margin-bottom: 12px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color 0.2s ease;
}

.article-card:hover .article-card-title {
  color: var(--color-primary);
}

.article-card-summary {
  font-size: 0.92rem;
  color: var(--color-text-main);
  line-height: 1.65;
  margin-bottom: 20px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex: 1;
}

.article-card-footer {
  margin-top: auto;
  padding-top: 14px;
  border-top: 1px solid rgba(0, 0, 0, 0.05);
}

.article-card-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--color-primary);
  font-size: 0.9rem;
  font-weight: 600;
  transition: gap 0.25s ease;
}

.article-card:hover .article-card-btn {
  gap: 12px;
  color: var(--color-primary-hover);
}

.article-card-btn svg {
  transition: transform 0.25s ease;
}

.article-card:hover .article-card-btn svg {
  transform: translateX(3px);
}

/* Empty state */
.articles-empty-state {
  grid-column: 1 / -1;
  text-align: center;
  padding: 60px 20px;
  background: #FFFFFF;
  border-radius: 16px;
  border: 1px dashed rgba(0, 0, 0, 0.1);
  color: var(--color-text-muted);
}

/* Insights Action Bar (Admin Link) */
.insights-footer-action {
  text-align: center;
}

.btn-admin-access {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.03);
  border: 1px solid rgba(0, 0, 0, 0.08);
  color: var(--color-text-muted);
  font-size: 0.85rem;
  text-decoration: none;
  transition: all 0.2s ease;
}

.btn-admin-access:hover {
  background: rgba(10, 186, 181, 0.08);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* ==========================================================================
   Nexorin - Reading Glassmorphic Modal (#articleModal)
   ========================================================================== */
.article-modal {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.35s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.35s ease;
}

.article-modal.is-open {
  opacity: 1;
  visibility: visible;
}

.article-modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.72);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.article-modal-dialog {
  position: relative;
  width: 92%;
  max-width: 860px;
  max-height: 90vh;
  overflow-y: auto;
  background: #FFFFFF;
  border-radius: 24px;
  box-shadow: 0 25px 65px rgba(0, 0, 0, 0.3);
  border: 1px solid rgba(255, 255, 255, 0.4);
  display: flex;
  flex-direction: column;
  z-index: 10;
  transform: translateY(24px) scale(0.97);
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.article-modal.is-open .article-modal-dialog {
  transform: translateY(0) scale(1);
}

/* Custom Modal Scrollbar */
.article-modal-dialog::-webkit-scrollbar {
  width: 8px;
}

.article-modal-dialog::-webkit-scrollbar-track {
  background: #F1F5F9;
  border-radius: 0 24px 24px 0;
}

.article-modal-dialog::-webkit-scrollbar-thumb {
  background: #CBD5E1;
  border-radius: 999px;
}

.article-modal-dialog::-webkit-scrollbar-thumb:hover {
  background: var(--color-primary);
}

/* Modal Header */
.article-modal-header {
  position: sticky;
  top: 0;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 18px 28px;
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
  display: flex;
  align-items: center;
  justify-content: space-between;
  z-index: 20;
}

.article-modal-meta-row {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  flex-wrap: wrap;
}

.article-modal-category {
  color: var(--color-primary);
  font-weight: 600;
}

.article-modal-dot {
  color: #D1D5DB;
}

.article-modal-close {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid rgba(0, 0, 0, 0.08);
  background: #F8FAFC;
  color: #64748B;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s ease;
}

.article-modal-close:hover {
  background: #EF4444;
  border-color: #EF4444;
  color: #FFFFFF;
  transform: rotate(90deg);
}

/* Modal Body */
.article-modal-body {
  padding: 32px 36px 40px;
  flex: 1;
}

.article-modal-title {
  font-family: var(--font-heading);
  font-size: clamp(1.45rem, 3vw, 2rem);
  font-weight: 700;
  color: var(--color-text-heading);
  line-height: 1.35;
  margin-bottom: 24px;
}

.article-modal-cover-wrap {
  width: 100%;
  max-height: 400px;
  border-radius: 16px;
  overflow: hidden;
  margin-bottom: 32px;
  background: #0F172A;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
}

.article-modal-cover {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.article-modal-body-content {
  color: #374151;
  font-size: 1.02rem;
  line-height: 1.85;
}

.article-modal-body-content .article-lead {
  font-size: 1.15rem;
  line-height: 1.75;
  color: #1F2937;
  font-weight: 500;
  margin-bottom: 28px;
  padding-bottom: 20px;
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

.article-modal-body-content h3 {
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--color-text-heading);
  margin: 32px 0 14px;
  letter-spacing: -0.01em;
}

.article-modal-body-content p {
  margin-bottom: 18px;
  color: #4B5563;
}

.article-modal-body-content blockquote {
  margin: 28px 0;
  padding: 18px 24px;
  background: rgba(10, 186, 181, 0.05);
  border-left: 4px solid var(--color-primary);
  border-radius: 0 14px 14px 0;
  font-style: italic;
  color: #1F2937;
  font-size: 1.05rem;
  line-height: 1.7;
}

/* Modal Footer */
.article-modal-footer {
  padding: 20px 36px;
  background: #F8FAFC;
  border-top: 1px solid rgba(0, 0, 0, 0.06);
  border-radius: 0 0 24px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.article-modal-brand-tag {
  display: flex;
  flex-direction: column;
}

.article-modal-brand-tag span {
  font-family: 'Montserrat', sans-serif;
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: #111827;
}

.article-modal-brand-tag small {
  font-size: 0.75rem;
  color: var(--color-primary);
}

.article-modal-footer-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.btn-modal-action {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 18px;
  border-radius: 999px;
  border: 1px solid rgba(0, 0, 0, 0.1);
  background: #FFFFFF;
  color: #374151;
  font-family: inherit;
  font-size: 0.88rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-modal-action:hover {
  background: #F1F5F9;
  border-color: #CBD5E1;
}

.btn-modal-primary {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #FFFFFF;
}

.btn-modal-primary:hover {
  background: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
}

@media (max-width: 768px) {
  .insights-section {
    padding: 70px 0 60px;
  }

  .insights-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .article-modal-body {
    padding: 22px 20px 28px;
  }

  .article-modal-header {
    padding: 14px 20px;
  }

  .article-modal-footer {
    padding: 16px 20px;
  }
}