/* ==========================================================================
   GUTDIAN — Tinh bột kháng từ chuối xanh
   ========================================================================== */

:root {
  --green: #0F3A2F;
  --gold: #C9A96E;
  --dark-green: #0B2E25;
  --darker-green: #071F19;
  --cream: #F7F2E8;
  --text: #2F3B36;
  --sage: #E6EBE3;
  --tan: #EFE7D6;
  --tan-2: #F5EBCF;
  --card-border: #E2D6BF;
  --muted: #45524C;
  --muted-2: #5A6660;
  --muted-3: #8FA79A;
  --brown: #8A6A36;
  --light-green: #B5CF6B;
  --olive: #7FA04A;
  --gold-soft: #E0B43C;
  --hero-text: #D9E2DC;
  --hero-text-2: #C9D5CE;
  --hero-text-3: #B7C6BD;
  --hero-text-4: #A9BBB1;
  --font-display: 'Playfair Display', Georgia, serif;
  --font-body: 'Be Vietnam Pro', system-ui, -apple-system, sans-serif;
  --container-px: 96px;
}

/* ---------- Reset & base ---------- */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--cream);
  font-family: var(--font-body);
  color: var(--text);
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: var(--green); text-decoration: none; }
a:hover { color: #164A3A; }
button { font-family: inherit; }
h1, h2 { margin: 0; font-family: var(--font-display); }
p { margin: 0; }
.gd-page { width: 100%; display: flex; flex-direction: column; background: var(--cream); }
.gd-container { box-sizing: border-box; padding-left: var(--container-px); padding-right: var(--container-px); }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}
.skip-link {
  position: absolute; left: 12px; top: -60px; z-index: 200;
  background: var(--gold); color: var(--dark-green); padding: 10px 18px;
  border-radius: 8px; font-weight: 700; transition: top .2s ease;
}
.skip-link:focus { top: 12px; }

/* ---------- Animations ---------- */
@keyframes gd-spin { to { transform: rotate(360deg); } }
@keyframes gd-spin-rev { to { transform: rotate(-360deg); } }
@keyframes gd-float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-14px); } }
@keyframes gd-pulse { 0%, 100% { opacity: .55; transform: scale(1); } 50% { opacity: .9; transform: scale(1.08); } }
@keyframes gd-shine { 0% { background-position: -160% 0; } 60%, 100% { background-position: 260% 0; } }
@keyframes gd-marquee { to { transform: translateX(-50%); } }
@keyframes gd-travel { 0% { left: 0%; opacity: 0; } 6% { opacity: 1; } 94% { opacity: 1; } 100% { left: 100%; opacity: 0; } }
@keyframes gd-twinkle { 0%, 100% { opacity: .15; transform: scale(.6); } 50% { opacity: 1; transform: scale(1); } }
@keyframes gd-sheen { 0% { transform: translateX(-120%) skewX(-18deg); } 55%, 100% { transform: translateX(320%) skewX(-18deg); } }
@keyframes gd-fade-up { from { opacity: 0; transform: translateY(28px); } to { opacity: 1; transform: translateY(0); } }

.gd-ring {
  background: conic-gradient(from 0deg, transparent 0deg, transparent 220deg, rgba(201,169,110,.15) 250deg, #E9D3A0 300deg, #FFF6DD 330deg, #C9A96E 345deg, transparent 360deg);
  -webkit-mask: radial-gradient(farthest-side, transparent calc(100% - 3px), #000 calc(100% - 2px));
  mask: radial-gradient(farthest-side, transparent calc(100% - 3px), #000 calc(100% - 2px));
  animation: gd-spin 5s linear infinite;
}
.gd-ring2 {
  background: conic-gradient(from 180deg, transparent 0deg, transparent 260deg, rgba(181,207,107,.6) 320deg, #E6F2B8 345deg, transparent 360deg);
  -webkit-mask: radial-gradient(farthest-side, transparent calc(100% - 2px), #000 calc(100% - 1px));
  mask: radial-gradient(farthest-side, transparent calc(100% - 2px), #000 calc(100% - 1px));
  animation: gd-spin-rev 9s linear infinite;
}
.gd-dash { animation: gd-spin 60s linear infinite; }
.gd-orbit { animation: gd-spin 12s linear infinite; }
.gd-glow {
  background: radial-gradient(closest-side, rgba(201,169,110,.55), rgba(201,169,110,.12) 55%, transparent);
  animation: gd-pulse 4.5s ease-in-out infinite;
}
.gd-float-anim { animation: gd-float 6s ease-in-out infinite; }
.gd-float-anim-2 { animation: gd-float 7s ease-in-out -2s infinite; }
.gd-float-anim-3 { animation: gd-float 5.5s ease-in-out -4s infinite; }
.gd-shine {
  background: linear-gradient(105deg, transparent 35%, rgba(255,250,230,.75) 50%, transparent 65%);
  background-size: 220% 100%;
  -webkit-mask: url(../images/product-cut.webp) center/contain no-repeat;
  mask: url(../images/product-cut.webp) center/contain no-repeat;
  mix-blend-mode: soft-light;
  animation: gd-shine 4.8s ease-in-out infinite;
}
.gd-marquee-track { animation: gd-marquee 32s linear infinite; }
.gd-travel { animation: gd-travel 5s ease-in-out infinite; }
.gd-tw1 { animation: gd-twinkle 2.6s ease-in-out infinite; }
.gd-tw2 { animation: gd-twinkle 3.4s ease-in-out -1s infinite; }
.gd-tw3 { animation: gd-twinkle 2.2s ease-in-out -1.6s infinite; }
.gd-border-spin { animation: gd-spin 6s linear infinite; }
.gd-sheen-el { animation: gd-sheen 3.6s ease-in-out infinite; }

.gd-reveal { opacity: 0; transform: translateY(28px); transition: opacity .7s ease, transform .7s ease; }
.gd-reveal.is-visible { opacity: 1; transform: translateY(0); }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .gd-ring, .gd-ring2, .gd-dash, .gd-orbit, .gd-glow,
  .gd-float-anim, .gd-float-anim-2, .gd-float-anim-3,
  .gd-shine, .gd-marquee-track, .gd-travel,
  .gd-tw1, .gd-tw2, .gd-tw3, .gd-border-spin, .gd-sheen-el {
    animation: none !important;
  }
  .gd-reveal { opacity: 1; transform: none; transition: none; }
}

/* ---------- Buttons ---------- */
.gd-btn {
  position: relative;
  overflow: hidden;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  border-radius: 999px;
  font-weight: 700;
  border: none;
  cursor: pointer;
  font-family: inherit;
}
.gd-btn-sheen {
  position: absolute; top: 0; left: 0; width: 40%; height: 100%;
}
.gd-btn > span:last-child { position: relative; }
.gd-btn-gold {
  background: var(--gold);
  color: var(--dark-green);
}
.gd-btn-outline-light {
  border: 1px solid rgba(247,242,232,.4);
  color: var(--cream);
  background: transparent;
}
.gd-btn-outline-light-2 {
  border: 1px solid rgba(247,242,232,.35);
  color: var(--cream);
  background: transparent;
}
.gd-btn-green {
  background: var(--green);
  color: var(--cream);
}

/* ---------- Header ---------- */
.gd-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: 80px;
  box-sizing: border-box;
  padding: 0 var(--container-px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--dark-green);
}
.gd-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}
.gd-logo-badge {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
}
.gd-logo-badge-lg { width: 64px; height: 64px; }
.gd-logo-mark { width: 100%; height: 100%; object-fit: contain; display: block; }
.gd-logo-text {
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 700;
  letter-spacing: 3px;
  color: var(--cream);
}
.gd-footer-logo-row { display: flex; align-items: center; gap: 18px; }
.gd-nav {
  display: flex;
  align-items: center;
  gap: 36px;
  font-size: 15px;
  font-weight: 500;
}
.gd-nav-link { color: var(--hero-text); text-decoration: none; }
.gd-nav-link:hover { color: var(--cream); }
.gd-nav-cta {
  height: 46px;
  padding: 0 26px;
  font-size: 15px;
}
.gd-burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  background: transparent;
  border: 1px solid rgba(247,242,232,.3);
  border-radius: 10px;
  cursor: pointer;
}
.gd-burger span {
  display: block;
  width: 20px;
  height: 2px;
  margin: 0 auto;
  background: var(--cream);
  transition: transform .25s ease, opacity .25s ease;
}
.gd-burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.gd-burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.gd-burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.gd-nav-mobile { display: none; }

/* ---------- Hero ---------- */
.gd-hero {
  position: relative;
  background: var(--dark-green);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.gd-hero-blob-1 {
  position: absolute; left: -200px; top: -240px; width: 720px; height: 720px;
  border-radius: 50%;
  background: radial-gradient(closest-side, rgba(22,74,58,0.9), transparent);
}
.gd-hero-blob-2 {
  position: absolute; right: -160px; bottom: -300px; width: 900px; height: 900px;
  border-radius: 50%;
  background: radial-gradient(closest-side, rgba(201,169,110,0.16), transparent);
}
.gd-hero-inner {
  position: relative;
  box-sizing: border-box;
  padding: 40px var(--container-px) 110px;
  display: flex;
  align-items: center;
  gap: 40px;
}
.gd-hero-copy {
  width: 560px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: 30px;
  min-width: 0;
}
.gd-badge {
  align-self: flex-start;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 18px 8px 8px;
  border-radius: 999px;
  border: 1px solid rgba(201,169,110,0.4);
  background: rgba(201,169,110,0.08);
}
.gd-badge-tag {
  padding: 4px 12px;
  border-radius: 999px;
  background: var(--gold);
  color: var(--dark-green);
  font-size: 13px;
  font-weight: 700;
}
.gd-badge-text { font-size: 14px; color: #E9DDC3; }
.gd-hero h1 {
  font-size: 68px;
  line-height: 1.05;
  font-weight: 700;
  color: var(--cream);
}
.gd-hero h1 em {
  font-style: italic;
  font-weight: 600;
  color: var(--gold);
}
.gd-hero-lead {
  font-size: 19px;
  line-height: 1.7;
  color: var(--hero-text-2);
  font-weight: 300;
}
.gd-hero-slogan {
  position: relative;
  padding-left: 24px;
  border-left: 2px solid var(--gold);
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 600;
  font-size: 27px;
  line-height: 1.45;
  color: var(--gold);
  letter-spacing: .2px;
}
.gd-hero-slogan-mark {
  margin-right: 2px;
  font-style: normal;
  font-weight: 700;
  color: rgba(201,169,110,.55);
}
.gd-hero-ctas { display: flex; gap: 16px; align-items: center; flex-wrap: wrap; }
.gd-hero-cta-primary { height: 58px; padding: 0 32px; font-size: 16px; box-shadow: 0 10px 40px rgba(201,169,110,0.35); }
.gd-hero-cta-secondary { height: 58px; padding: 0 28px; font-size: 16px; font-weight: 500; }
.gd-hero-checks { display: flex; gap: 36px; padding-top: 8px; flex-wrap: wrap; }
.gd-check { display: flex; align-items: center; gap: 10px; }
.gd-check span { font-size: 15px; color: var(--hero-text); }

/* product stage */
.gd-stage {
  position: relative;
  flex-grow: 1;
  height: 640px;
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 0;
}
.gd-stage-glow { position: absolute; width: 620px; height: 620px; border-radius: 50%; }
.gd-stage-dash { position: absolute; width: 600px; height: 600px; border-radius: 50%; border: 1px dashed rgba(201,169,110,0.35); }
.gd-stage-ring { position: absolute; width: 560px; height: 560px; border-radius: 50%; }
.gd-stage-ring2 { position: absolute; width: 500px; height: 500px; border-radius: 50%; }
.gd-stage-orbit { position: absolute; width: 600px; height: 600px; }
.gd-stage-orbit-dot {
  position: absolute; left: 50%; top: -7px; width: 14px; height: 14px; margin-left: -7px;
  border-radius: 50%; background: #FFF3D1; box-shadow: 0 0 18px 6px rgba(233,211,160,0.9);
}
.gd-tw {
  position: absolute; border-radius: 50%;
}
.gd-tw1 { left: 12%; top: 16%; width: 8px; height: 8px; background: #FFF3D1; box-shadow: 0 0 12px 4px rgba(233,211,160,0.8); }
.gd-tw2 { right: 10%; top: 26%; width: 6px; height: 6px; background: #E6F2B8; box-shadow: 0 0 12px 4px rgba(181,207,107,0.8); }
.gd-tw3 { left: 22%; bottom: 12%; width: 7px; height: 7px; background: #FFF3D1; box-shadow: 0 0 12px 4px rgba(233,211,160,0.8); }
.gd-product-wrap { position: relative; width: 680px; height: 319px; max-width: 100%; }
.gd-product-shadow {
  position: absolute; left: 8%; right: 8%; bottom: -26px; height: 40px; border-radius: 50%;
  background: radial-gradient(closest-side, rgba(0,0,0,0.55), transparent);
}
.gd-product-img {
  position: relative; width: 100%; height: 100%; object-fit: contain; display: block;
  filter: drop-shadow(0 30px 40px rgba(0,0,0,0.45));
}
.gd-shine-overlay { position: absolute; left: 0; top: 0; width: 100%; height: 100%; }
.gd-float-card {
  position: absolute;
  display: flex; align-items: center; gap: 12px;
  padding: 14px 20px; border-radius: 18px;
  background: rgba(247,242,232,0.1);
  border: 1px solid rgba(247,242,232,0.18);
  backdrop-filter: blur(12px);
}
.gd-float-card-1 { left: 0; top: 60px; }
.gd-float-card-2 { right: 0; bottom: 70px; }
.gd-float-card-num { font-family: var(--font-display); font-size: 28px; font-weight: 700; color: var(--gold); }
.gd-float-card-label { font-size: 13px; line-height: 1.4; color: var(--hero-text); }

/* ---------- Marquee ---------- */
.gd-marquee {
  height: 64px;
  background: var(--gold);
  overflow: hidden;
  display: flex;
  align-items: center;
}
.gd-marquee-track {
  display: flex;
  flex-shrink: 0;
  white-space: nowrap;
  font-family: var(--font-display);
  font-size: 22px;
  font-style: italic;
  font-weight: 600;
  color: var(--dark-green);
}
.gd-marquee-track span { padding: 0 28px; }
.gd-marquee-track span.gd-dot { padding: 0; }

/* ---------- Stat section ---------- */
.gd-stat-section {
  box-sizing: border-box;
  padding: 90px var(--container-px);
  display: flex;
  gap: 32px;
  align-items: stretch;
  flex-wrap: wrap;
}
.gd-stat-hero-card {
  position: relative;
  width: 620px;
  flex: 1 1 480px;
  border-radius: 32px;
  overflow: hidden;
  padding: 2px;
  box-sizing: border-box;
  display: flex;
}
.gd-border-spin-bg {
  position: absolute; left: 50%; top: 50%; width: 1200px; height: 1200px; margin: -600px 0 0 -600px;
  background: conic-gradient(from 0deg, transparent 0 60%, var(--gold) 80%, #FFF1CC 88%, transparent 100%);
}
.gd-stat-hero-inner {
  position: relative;
  flex-grow: 1;
  border-radius: 30px;
  background: var(--green);
  padding: 52px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.gd-eyebrow-gold { font-size: 13px; font-weight: 600; letter-spacing: 3px; color: var(--gold); }
.gd-stat-big-row { display: flex; align-items: baseline; gap: 14px; flex-wrap: wrap; }
.gd-stat-big { font-family: var(--font-display); font-size: 120px; line-height: 0.95; font-weight: 800; color: var(--cream); }
.gd-stat-unit { font-size: 28px; font-weight: 600; color: var(--gold); }
.gd-stat-caption { font-size: 20px; font-weight: 600; color: var(--cream); }
.gd-stat-note { font-size: 14px; line-height: 1.7; color: var(--hero-text-4); }

.gd-stat-grid {
  flex: 1 1 420px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}
.gd-stat-tile {
  border-radius: 28px;
  padding: 36px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 18px;
}
.gd-stat-tile.sage { background: var(--sage); }
.gd-stat-tile.tan { background: var(--tan); }
.gd-stat-tile-num { font-family: var(--font-display); font-size: 48px; font-weight: 700; color: var(--green); }
.gd-stat-tile-text { font-size: 16px; line-height: 1.6; color: var(--muted); }
.gd-stat-wide {
  grid-column: span 2;
  border-radius: 28px;
  background: #FFFFFF;
  border: 1px solid var(--card-border);
  padding: 32px 36px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}
.gd-stat-wide-title { font-size: 20px; font-weight: 700; color: var(--green); }
.gd-stat-wide-sub { font-size: 15px; color: var(--muted-2); }
.gd-stat-wide-num { font-family: var(--font-display); font-size: 48px; font-weight: 700; color: var(--brown); }

/* ---------- Section headings (shared) ---------- */
.gd-section { box-sizing: border-box; padding: 90px var(--container-px); }
.gd-section-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 60px;
  flex-wrap: wrap;
}
.gd-eyebrow-brown { font-size: 13px; font-weight: 600; letter-spacing: 3px; color: var(--brown); }
.gd-h2 { font-size: 44px; line-height: 1.1; font-weight: 700; color: var(--green); }
.gd-h2-light { color: var(--cream); }
.gd-h2-light em { font-style: italic; color: var(--gold); }
.gd-section-lead { font-size: 17px; line-height: 1.75; color: var(--muted); }

/* ---------- Kien thuc / journey ---------- */
.gd-knowledge { background: var(--sage); display: flex; flex-direction: column; gap: 56px; }
.gd-knowledge-head-text { display: flex; flex-direction: column; gap: 18px; width: 620px; max-width: 100%; }
.gd-knowledge-lead { width: 560px; max-width: 100%; }
.gd-knowledge-lead b { color: var(--green); }
.gd-journey {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
}
.gd-journey-line {
  position: absolute; left: 12%; right: 12%; top: 44px; height: 2px;
  background: repeating-linear-gradient(90deg, var(--brown) 0 8px, transparent 8px 16px);
  opacity: 0.5;
}
.gd-journey-travel-track { position: absolute; left: 12%; right: 12%; top: 37px; height: 16px; }
.gd-journey-travel-dot {
  position: absolute; top: 0; width: 16px; height: 16px; margin-left: -8px; border-radius: 50%;
  background: var(--gold); box-shadow: 0 0 16px 6px rgba(201,169,110,0.7);
}
.gd-journey-step {
  position: relative;
  display: flex; flex-direction: column; align-items: center; gap: 18px; text-align: center;
}
.gd-journey-num {
  width: 88px; height: 88px; border-radius: 50%;
  background: var(--cream); border: 1px solid #C9D3C8;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display); font-size: 30px; font-weight: 700; color: var(--brown);
}
.gd-journey-num.is-final {
  background: var(--green); color: var(--gold);
  box-shadow: 0 0 0 8px rgba(15,58,47,0.12);
}
.gd-journey-title { font-size: 19px; font-weight: 700; color: var(--green); }
.gd-journey-desc { font-size: 15px; line-height: 1.6; color: var(--muted-2); padding: 0 12px; }

/* ---------- Science (dark) ---------- */
.gd-science {
  position: relative;
  background: var(--dark-green);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: 48px;
}
.gd-science-blob {
  position: absolute; right: -200px; top: -200px; width: 700px; height: 700px; border-radius: 50%;
  background: radial-gradient(closest-side, rgba(201,169,110,0.14), transparent);
}
.gd-science-head { position: relative; display: flex; flex-direction: column; gap: 18px; width: 760px; max-width: 100%; }
.gd-science-grid { position: relative; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 20px; }
.gd-science-card {
  border-radius: 24px; padding: 34px 30px;
  background: rgba(247,242,232,0.05); border: 1px solid rgba(247,242,232,0.12);
  display: flex; flex-direction: column; gap: 16px;
}
.gd-science-card-title { font-size: 20px; font-weight: 700; color: var(--cream); }
.gd-science-card-text { font-size: 15px; line-height: 1.7; color: var(--hero-text-3); }
.gd-science-footnote { position: relative; font-size: 14px; color: var(--muted-3); }

/* ---------- RS types ---------- */
.gd-rs-types { display: flex; flex-direction: column; gap: 44px; }
.gd-rs-grid { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 16px; }
.gd-rs-card {
  border-radius: 24px; padding: 30px 26px; background: #FFFFFF; border: 1px solid var(--card-border);
  display: flex; flex-direction: column; gap: 14px;
}
.gd-rs-card-num { font-family: var(--font-display); font-size: 36px; font-weight: 700; color: var(--brown); }
.gd-rs-card-title { font-size: 17px; font-weight: 700; color: var(--green); }
.gd-rs-card-text { font-size: 14px; line-height: 1.65; color: var(--muted-2); }
.gd-rs-card.is-featured {
  position: relative; overflow: hidden;
  background: var(--green);
  box-shadow: 0 24px 60px rgba(15,58,47,0.28);
  transform: translateY(-12px);
}
.gd-rs-card.is-featured .gd-rs-card-num { color: var(--gold); }
.gd-rs-card.is-featured .gd-rs-card-title { color: var(--cream); }
.gd-rs-card.is-featured .gd-rs-card-text { color: var(--hero-text-2); }
.gd-rs-featured-head { position: relative; display: flex; justify-content: space-between; align-items: center; }
.gd-rs-featured-tag {
  padding: 5px 12px; border-radius: 999px; background: var(--gold); color: var(--dark-green);
  font-size: 12px; font-weight: 700;
}
.gd-sheen-clip { position: relative; top: 0; left: 0; width: 45%; height: 100%; }

/* ---------- Green vs ripe ---------- */
.gd-compare { display: flex; gap: 32px; align-items: stretch; flex-wrap: wrap; }
.gd-compare-media {
  position: relative; width: 560px; flex: 1 1 400px; border-radius: 32px; overflow: hidden; min-height: 520px;
}
.gd-compare-img { position: absolute; left: 0; top: 0; width: 100%; height: 100%; object-fit: cover; display: block; }
.gd-compare-media-fade {
  position: absolute; left: 0; right: 0; bottom: 0; height: 60%;
  background: linear-gradient(to top, rgba(11,46,37,0.92), transparent);
}
.gd-compare-media-text { position: absolute; left: 40px; right: 40px; bottom: 40px; display: flex; flex-direction: column; gap: 14px; }
.gd-compare-media-title { font-size: 42px; line-height: 1.1; font-weight: 700; color: var(--cream); }
.gd-compare-media-title em { font-style: italic; color: var(--light-green); }
.gd-compare-body { flex: 1 1 480px; display: flex; flex-direction: column; gap: 24px; min-width: 0; }
.gd-compare-lead { font-size: 17px; line-height: 1.75; color: var(--muted); }
.gd-compare-grid { flex-grow: 1; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.gd-compare-card { border-radius: 28px; padding: 32px; display: flex; flex-direction: column; gap: 20px; }
.gd-compare-card.green-card { background: var(--sage); border: 2px solid var(--olive); }
.gd-compare-card.ripe-card { background: var(--tan-2); }
.gd-compare-card-head { display: flex; align-items: center; gap: 12px; }
.gd-compare-dot { width: 14px; height: 14px; border-radius: 50%; }
.gd-compare-dot.green { background: var(--olive); }
.gd-compare-dot.ripe { background: var(--gold-soft); }
.gd-compare-card-head span.label { font-size: 20px; font-weight: 700; color: var(--green); }
.gd-compare-list { display: flex; flex-direction: column; gap: 14px; font-size: 15px; line-height: 1.6; color: var(--muted); }
.gd-compare-list span { padding-bottom: 14px; border-bottom: 1px solid #C9D3C8; }
.gd-compare-card.ripe-card .gd-compare-list span { border-bottom-color: #E2D2A8; }
.gd-compare-list span:last-child { border-bottom: none; padding-bottom: 0; }

/* ---------- Product section ---------- */
.gd-product-section { background: var(--tan); display: flex; gap: 60px; align-items: center; flex-wrap: wrap; }
.gd-product-media { position: relative; width: 520px; height: 520px; flex-shrink: 0; max-width: 100%; }
.gd-product-media-img {
  position: absolute; left: 0; top: 0; width: 420px; height: 420px; max-width: 80%; max-height: 80%;
  border-radius: 32px; overflow: hidden;
}
.gd-product-media-img img { width: 100%; height: 100%; object-fit: cover; }
.gd-product-badge {
  position: absolute; right: 0; bottom: 0; width: 220px; max-width: 55%;
  box-sizing: border-box; padding: 24px; border-radius: 24px; background: var(--green);
  display: flex; flex-direction: column; gap: 8px;
  box-shadow: 0 24px 50px rgba(11,46,37,0.3);
}
.gd-product-badge-label { font-size: 13px; font-weight: 600; letter-spacing: 2px; color: var(--gold); }
.gd-product-badge-num { font-family: var(--font-display); font-size: 40px; font-weight: 700; color: var(--cream); }
.gd-product-badge-sub { font-size: 15px; color: var(--hero-text-2); }
.gd-product-body { flex: 1 1 460px; display: flex; flex-direction: column; gap: 22px; min-width: 0; }
.gd-product-lead { font-size: 17px; line-height: 1.75; color: var(--muted); }
.gd-product-specs { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.gd-product-spec { border-radius: 20px; background: var(--cream); padding: 20px; display: flex; flex-direction: column; gap: 6px; }
.gd-product-spec-label { font-size: 12px; font-weight: 600; letter-spacing: 2px; color: var(--brown); }
.gd-product-spec-val { font-size: 19px; font-weight: 700; color: var(--green); }
.gd-product-footnote { font-size: 14px; color: var(--muted-2); }

/* ---------- Tips ---------- */
.gd-tips { display: flex; gap: 56px; flex-wrap: wrap; }
.gd-tips-side { width: 400px; flex: 1 1 320px; display: flex; flex-direction: column; gap: 22px; }
.gd-tips-title { font-size: 40px; line-height: 1.1; font-weight: 700; color: var(--green); }
.gd-tips-lead { font-size: 16px; line-height: 1.75; color: var(--muted); }
.gd-warning-box {
  margin-top: 8px; padding: 22px 24px; border-radius: 20px; background: var(--green);
  display: flex; gap: 14px; align-items: flex-start;
}
.gd-warning-box svg { flex-shrink: 0; }
.gd-warning-box span { font-size: 14px; line-height: 1.6; color: var(--hero-text); }
.gd-tips-grid { flex: 2 1 520px; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.gd-tip-card {
  border-radius: 24px; padding: 32px; background: #FFFFFF; border: 1px solid var(--card-border);
  display: flex; flex-direction: column; gap: 14px;
}
.gd-tip-icon { width: 52px; height: 52px; border-radius: 16px; background: var(--sage); display: flex; align-items: center; justify-content: center; }
.gd-tip-title { font-size: 19px; font-weight: 700; color: var(--green); }
.gd-tip-text { font-size: 15px; line-height: 1.65; color: var(--muted-2); }

/* ---------- Press ---------- */
.gd-press { background: var(--sage); display: flex; flex-direction: column; gap: 44px; }
.gd-press-lead { width: 480px; max-width: 100%; font-size: 15px; line-height: 1.7; color: var(--muted-2); }
.gd-press-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; }
.gd-press-card { border-radius: 24px; padding: 30px; background: var(--cream); display: flex; flex-direction: column; gap: 16px; }
.gd-press-logo { font-family: var(--font-display); font-size: 26px; font-weight: 700; color: var(--green); }
.gd-press-tag { font-size: 12px; font-weight: 700; letter-spacing: 2px; color: var(--brown); }
.gd-press-text { font-size: 15px; line-height: 1.6; color: var(--muted); }

/* ---------- Pricing ---------- */
.gd-pricing {
  position: relative; background: var(--dark-green); overflow: hidden;
  display: flex; flex-direction: column; align-items: center; gap: 48px;
}
.gd-pricing-blob {
  position: absolute; left: 50%; top: 40%; width: 1000px; height: 600px; margin-left: -500px;
  border-radius: 50%; background: radial-gradient(closest-side, rgba(201,169,110,0.16), transparent);
}
.gd-pricing-head { position: relative; display: flex; flex-direction: column; align-items: center; gap: 18px; text-align: center; }
.gd-pricing-grid { position: relative; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 28px; width: 1000px; max-width: 100%; }
.gd-price-card {
  border-radius: 32px; padding: 44px; background: rgba(247,242,232,0.05); border: 1px solid rgba(247,242,232,0.15);
  display: flex; flex-direction: column; gap: 22px;
}
.gd-price-label { font-size: 15px; font-weight: 700; letter-spacing: 2px; color: var(--hero-text); }
.gd-price-row { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; }
.gd-price-num { font-family: var(--font-display); font-size: 52px; font-weight: 700; color: var(--cream); }
.gd-price-num.dark { color: var(--green); }
.gd-price-unit { font-size: 18px; color: var(--hero-text-4); }
.gd-price-desc { font-size: 16px; color: var(--hero-text-3); }
.gd-price-desc.dark { color: var(--muted-2); }
.gd-price-cta {
  margin-top: 12px; text-decoration: none; display: flex; align-items: center; justify-content: center;
  height: 58px; border-radius: 999px; font-size: 16px; font-weight: 600;
}
.gd-price-card.is-featured { position: relative; border-radius: 32px; overflow: hidden; padding: 2px; display: flex; background: transparent; border: none; }
.gd-price-featured-border {
  position: absolute; left: 50%; top: 50%; width: 1000px; height: 1000px; margin: -500px 0 0 -500px;
  background: conic-gradient(from 0deg, transparent 0 60%, var(--gold) 80%, #FFF1CC 88%, transparent 100%);
}
.gd-price-featured-inner {
  position: relative; flex-grow: 1; border-radius: 30px; padding: 40px; background: var(--cream);
  display: flex; flex-direction: column; gap: 22px;
}
.gd-price-featured-head { display: flex; justify-content: space-between; align-items: center; gap: 10px; flex-wrap: wrap; }
.gd-price-save-tag { padding: 7px 14px; border-radius: 999px; background: var(--green); color: var(--gold); font-size: 13px; font-weight: 700; }
.gd-pricing-footnote { position: relative; margin: 0; font-size: 14px; color: var(--muted-3); text-align: center; }

/* ---------- FAQ ---------- */
.gd-faq { display: flex; gap: 60px; flex-wrap: wrap; }
.gd-faq-side { width: 380px; flex: 1 1 300px; display: flex; flex-direction: column; gap: 18px; }
.gd-faq-title { font-size: 40px; line-height: 1.1; font-weight: 700; color: var(--green); }
.gd-faq-lead { font-size: 16px; line-height: 1.7; color: var(--muted-2); }
.gd-faq-lead a { font-weight: 700; }
.gd-faq-list { flex: 2 1 520px; display: flex; flex-direction: column; gap: 12px; min-width: 0; }
.gd-faq-item { border-radius: 20px; background: #FFFFFF; border: 1px solid var(--card-border); overflow: hidden; }
.gd-faq-question {
  width: 100%; min-height: 72px; box-sizing: border-box; padding: 20px 28px;
  display: flex; align-items: center; justify-content: space-between; gap: 20px;
  background: transparent; border: 0; cursor: pointer; text-align: left;
  font-family: inherit; font-size: 17px; font-weight: 600; color: var(--green);
}
.gd-faq-icon {
  flex-shrink: 0; width: 34px; height: 34px; border-radius: 50%; background: var(--sage);
  display: flex; align-items: center; justify-content: center; font-size: 20px; color: var(--green);
  line-height: 1;
}
.gd-faq-answer {
  padding: 0 28px 24px; font-size: 16px; line-height: 1.75; color: var(--muted);
}
.gd-faq-answer[hidden] { display: none; }

/* ---------- Ha Tinh ---------- */
.gd-local { box-sizing: border-box; padding: 0 var(--container-px) 90px; display: flex; }
.gd-local-inner {
  position: relative; flex-grow: 1; border-radius: 36px; overflow: hidden; background: var(--green);
  padding: 56px; display: flex; gap: 56px; align-items: center; flex-wrap: wrap;
}
.gd-local-blob {
  position: absolute; right: -120px; top: -160px; width: 520px; height: 520px; border-radius: 50%;
  background: radial-gradient(closest-side, rgba(181,207,107,0.18), transparent);
}
.gd-local-copy { position: relative; width: 480px; flex: 1 1 380px; display: flex; flex-direction: column; gap: 20px; }
.gd-local-title { font-size: 38px; line-height: 1.15; font-weight: 700; color: var(--cream); }
.gd-local-lead { font-size: 16px; line-height: 1.75; color: var(--hero-text-2); }
.gd-local-note { font-size: 13px; line-height: 1.6; color: var(--muted-3); }
.gd-local-steps { position: relative; flex: 1 1 380px; display: flex; flex-direction: column; gap: 14px; min-width: 0; }
.gd-local-step {
  display: flex; align-items: center; gap: 24px; padding: 24px 26px; border-radius: 20px;
  background: rgba(247,242,232,0.06); border: 1px solid rgba(247,242,232,0.12);
}
.gd-local-step-num { font-family: var(--font-display); font-size: 30px; font-weight: 700; color: var(--gold); }
.gd-local-step-label { font-size: 16px; font-weight: 700; letter-spacing: 1.5px; color: var(--cream); }

/* ---------- Partners ---------- */
.gd-partners { box-sizing: border-box; padding: 0 var(--container-px) 90px; display: flex; flex-direction: column; gap: 40px; }
.gd-partners-lead { width: 480px; max-width: 100%; font-size: 16px; line-height: 1.7; color: var(--muted); }
.gd-partners-row { display: flex; gap: 20px; flex-wrap: wrap; }
.gd-partners-grid { flex: 3 1 560px; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.gd-partner-card { border-radius: 24px; padding: 30px; background: #FFFFFF; border: 1px solid var(--card-border); display: flex; flex-direction: column; gap: 14px; }
.gd-partner-num { font-family: var(--font-display); font-size: 32px; font-weight: 700; color: var(--brown); }
.gd-partner-title { font-size: 19px; font-weight: 700; color: var(--green); }
.gd-partner-text { font-size: 15px; line-height: 1.6; color: var(--muted-2); }
.gd-partner-qr {
  width: 260px; flex: 1 1 220px; box-sizing: border-box; padding: 28px; border-radius: 24px; background: var(--gold);
  display: flex; flex-direction: column; gap: 14px; align-items: center;
}
.gd-partner-qr-img { width: 150px; height: 150px; padding: 12px; box-sizing: border-box; background: #FFFFFF; border-radius: 16px; }
.gd-partner-qr-img img { width: 100%; height: 100%; }
.gd-partner-qr-text { font-size: 14px; line-height: 1.5; text-align: center; font-weight: 600; color: var(--dark-green); }

/* ---------- Footer ---------- */
.gd-footer { box-sizing: border-box; padding: 64px var(--container-px) 40px; background: var(--darker-green); display: flex; flex-direction: column; gap: 40px; }
.gd-footer-top { display: flex; justify-content: space-between; align-items: flex-start; gap: 48px; flex-wrap: wrap; }
.gd-footer-brand { display: flex; flex-direction: column; gap: 14px; }
.gd-footer-logo { font-family: var(--font-display); font-size: 46px; font-weight: 700; letter-spacing: 4px; color: var(--cream); }
.gd-footer-tagline { font-size: 18px; color: var(--hero-text-2); }
.gd-footer-company { display: flex; flex-direction: column; gap: 8px; padding-top: 20px; }
.gd-footer-company-name { font-size: 14px; font-weight: 700; letter-spacing: 1.5px; color: var(--hero-text); }
.gd-footer-phone { text-decoration: none; font-size: 28px; font-weight: 600; color: var(--gold); }
.gd-footer-fanpage { display: flex; gap: 20px; align-items: center; text-decoration: none; color: inherit; border-radius: 16px; transition: opacity .2s ease; }
.gd-footer-fanpage:hover { opacity: .85; }
.gd-footer-qr { width: 130px; height: 130px; padding: 10px; box-sizing: border-box; background: #FFFFFF; border-radius: 16px; flex-shrink: 0; }
.gd-footer-qr img { width: 100%; height: 100%; }
.gd-footer-fanpage-text { width: 200px; display: flex; flex-direction: column; gap: 8px; }
.gd-footer-fanpage-label { font-size: 13px; font-weight: 600; letter-spacing: 2px; color: var(--gold); }
.gd-footer-fanpage-desc { font-size: 15px; line-height: 1.5; color: var(--hero-text-2); }
.gd-footer-bottom {
  display: flex; justify-content: space-between; gap: 30px; padding-top: 24px;
  border-top: 1px solid #1F3F35; font-size: 13px; color: var(--muted-3); flex-wrap: wrap;
}

/* ---------- Back to top ---------- */
.gd-back-to-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 180;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: none;
  background: var(--gold);
  color: var(--dark-green);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 8px 24px rgba(0,0,0,0.28);
  opacity: 0;
  transform: translateY(12px);
  pointer-events: none;
  transition: opacity .25s ease, transform .25s ease, background .2s ease;
}
.gd-back-to-top.is-visible { opacity: 1; transform: translateY(0); pointer-events: auto; }
.gd-back-to-top:hover { background: #DCC291; }

@media (max-width: 600px) {
  .gd-back-to-top { right: 16px; bottom: 16px; width: 44px; height: 44px; }
}

@media (prefers-reduced-motion: reduce) {
  .gd-back-to-top { transition: opacity .01s linear; }
}

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 1200px) {
  :root { --container-px: 56px; }
  .gd-hero h1 { font-size: 54px; }
  .gd-h2 { font-size: 38px; }
  .gd-stat-big { font-size: 88px; }
  .gd-rs-grid { grid-template-columns: repeat(3, minmax(0,1fr)); }
  .gd-rs-card.is-featured { transform: none; order: -1; }
  .gd-science-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .gd-press-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .gd-journey { grid-template-columns: repeat(2, minmax(0,1fr)); row-gap: 40px; }
  .gd-journey-line, .gd-journey-travel-track { display: none; }
  .gd-partners-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
}

@media (max-width: 900px) {
  .gd-header { height: 72px; }
  .gd-nav { display: none; }
  .gd-burger { display: flex; }
  .gd-nav-mobile {
    position: fixed; top: 72px; left: 0; right: 0; z-index: 99;
    background: var(--dark-green); border-top: 1px solid rgba(247,242,232,0.1);
    display: flex; flex-direction: column; padding: 12px var(--container-px) 24px; gap: 4px;
    transform: translateY(-8px); opacity: 0; visibility: hidden;
    transition: transform .2s ease, opacity .2s ease, visibility .2s;
    max-height: calc(100vh - 72px); overflow-y: auto;
  }
  .gd-nav-mobile.is-open { transform: translateY(0); opacity: 1; visibility: visible; }
  .gd-nav-mobile a {
    padding: 14px 4px; color: var(--hero-text); font-size: 16px; font-weight: 500;
    border-bottom: 1px solid rgba(247,242,232,0.08);
  }
  .gd-nav-mobile .gd-nav-cta { margin-top: 12px; justify-content: center; }

  .gd-hero-inner { flex-direction: column; padding-bottom: 60px; }
  .gd-hero-copy { width: 100%; }
  .gd-hero h1 { font-size: 44px; }
  .gd-stage { width: 100%; height: 420px; order: -1; }
  .gd-stage-glow, .gd-stage-dash, .gd-stage-ring, .gd-stage-ring2, .gd-stage-orbit { transform: scale(.68); }
  .gd-product-wrap { width: 460px; height: 216px; }
  .gd-float-card { padding: 10px 14px; }
  .gd-float-card-num { font-size: 22px; }

  .gd-stat-section { padding-top: 64px; padding-bottom: 64px; }
  .gd-stat-hero-card { width: 100%; }
  .gd-stat-big { font-size: 72px; }
  .gd-stat-grid { grid-template-columns: 1fr; }
  .gd-stat-wide { grid-column: span 1; }

  .gd-section { padding-top: 64px; padding-bottom: 64px; }
  .gd-h2 { font-size: 32px; }
  .gd-section-lead { width: 100% !important; }
  .gd-knowledge-head-text, .gd-knowledge-lead { width: 100%; }
  .gd-journey { grid-template-columns: 1fr; }

  .gd-science-grid { grid-template-columns: 1fr; }
  .gd-rs-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }

  .gd-compare { flex-direction: column; }
  .gd-compare-media { width: 100%; min-height: 320px; }
  .gd-compare-grid { grid-template-columns: 1fr; }

  .gd-product-section { flex-direction: column; }
  .gd-product-media { width: 100%; max-width: 420px; height: auto; aspect-ratio: 1/1; margin: 0 auto; }
  .gd-product-specs { grid-template-columns: 1fr 1fr; }

  .gd-tips { flex-direction: column; }
  .gd-tips-side { width: 100%; }
  .gd-tips-grid { grid-template-columns: 1fr; }

  .gd-press-grid { grid-template-columns: 1fr; }
  .gd-press-lead { width: 100%; }

  .gd-pricing-grid { grid-template-columns: 1fr; width: 100%; }

  .gd-faq { flex-direction: column; }
  .gd-faq-side { width: 100%; }

  .gd-local-inner { flex-direction: column; padding: 40px; }
  .gd-local-copy { width: 100%; }

  .gd-partners-row { flex-direction: column; }
  .gd-partners-grid { grid-template-columns: 1fr; }
  .gd-partner-qr { width: 100%; }

  .gd-footer-top { flex-direction: column; }
  .gd-footer-bottom { flex-direction: column; gap: 10px; }

}

@media (max-width: 600px) {
  :root { --container-px: 20px; }
  .gd-logo-text { font-size: 20px; }
  .gd-hero h1 { font-size: 34px; }
  .gd-badge-text { font-size: 12px; }
  .gd-hero-lead { font-size: 16px; }
  .gd-hero-slogan { font-size: 20px; padding-left: 16px; }
  .gd-hero-cta-primary, .gd-hero-cta-secondary { height: 52px; padding: 0 22px; font-size: 14px; }
  .gd-hero-checks { gap: 18px 24px; }

  .gd-stage { height: 320px; }
  .gd-stage-glow, .gd-stage-dash, .gd-stage-ring, .gd-stage-ring2, .gd-stage-orbit { transform: scale(.48); }
  .gd-product-wrap { width: 300px; height: 141px; }
  .gd-float-card { display: none; }

  .gd-stat-big { font-size: 52px; }
  .gd-stat-hero-inner { padding: 32px; }
  .gd-stat-tile { padding: 26px; }
  .gd-stat-wide { flex-direction: column; align-items: flex-start; padding: 26px; }

  .gd-h2 { font-size: 26px; }
  .gd-rs-grid { grid-template-columns: 1fr; }
  .gd-product-specs { grid-template-columns: 1fr; }

  .gd-price-num { font-size: 40px; }
  .gd-price-featured-head { flex-direction: column; align-items: flex-start; }

  .gd-local-title { font-size: 28px; }
  .gd-footer-logo { font-size: 34px; }
  .gd-logo-badge-lg { width: 48px; height: 48px; }
  .gd-footer-logo-row { gap: 12px; }
  .gd-footer-fanpage { flex-direction: column; align-items: flex-start; }
}