/* ============================================
   SUNYUAN Natural Colors — Bright & Vivid
   Natural pigment spectrum aesthetic
   ============================================ */

/* ---------- Design Tokens ---------- */
:root {
  /* Canvas & Surfaces — bright, warm, natural */
  --white: #FFFFFF;
  --canvas: #FAFBF7;
  --canvas-alt: #F5F8F0;

  /* Bright Section Colors (replacing all dark sections) */
  --bright-yellow: #FFF8E1;
  --bright-yellow-deep: #FFD54F;
  --bright-green: #E8F5E9;
  --bright-green-deep: #66BB6A;
  --bright-orange: #FFF3E0;
  --bright-orange-deep: #FFB74D;
  --bright-pink: #FCE4EC;
  --bright-pink-deep: #EC407A;

  /* Deep Natural (footer — forest green, not navy) */
  --deep-natural: #1B3A2B;
  --deep-natural-card: #244A36;

  /* Text */
  --ink: #1A2E1A;
  --ink-secondary: #4A5A4A;
  --ink-muted: #7A8A7A;
  --ink-light: #AAB8AA;
  --ink-on-bright: #1A2E1A;
  --ink-on-deep: #E8F5E9;
  --ink-on-deep-secondary: #A5C9B0;

  /* Primary — vivid natural green */
  --primary: #2E7D32;
  --primary-dark: #1B5E20;
  --primary-light: #43A047;
  --primary-tint: #E8F5E9;

  /* Natural Color Spectrum (vivid, from blog1.jpg) */
  --color-red: #E53935;
  --color-red-tint: #FFEBEE;
  --color-orange: #FB8C00;
  --color-orange-tint: #FFF3E0;
  --color-yellow: #FDD835;
  --color-yellow-tint: #FFF9C4;
  --color-green: #43A047;
  --color-green-tint: #E8F5E9;
  --color-blue: #1E88E5;
  --color-blue-tint: #E3F2FD;
  --color-purple: #8E24AA;
  --color-purple-tint: #F3E5F5;

  /* Borders */
  --border-subtle: #E8EDE5;
  --border-strong: #D0D8CC;

  /* Typography */
  --font-display: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Courier New', monospace;

  /* Spacing */
  --space-xs: 8px;
  --space-sm: 16px;
  --space-md: 24px;
  --space-lg: 32px;
  --space-xl: 48px;
  --space-2xl: 64px;
  --space-3xl: 80px;
  --space-4xl: 120px;

  /* Radius */
  --radius-card: 20px;
  --radius-button: 10px;

  /* Shadows */
  --shadow-card: 0 2px 12px rgba(26, 46, 26, 0.06);
  --shadow-elevated: 0 8px 32px rgba(26, 46, 26, 0.10);
  --shadow-glow: 0 4px 24px rgba(46, 125, 50, 0.20);

  /* Layout */
  --max-width: 1280px;
  --nav-height: 72px;

  /* Transitions */
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --duration: 0.3s;
}

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

html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  color: var(--ink);
  background: var(--white);
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: color var(--duration) var(--ease); }
a:hover { color: var(--primary); }

/* ---------- Typography ---------- */
.display, h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--ink);
}

h1 { font-size: clamp(2rem, 5vw, 3.25rem); }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.25rem); }
h3 { font-size: clamp(1.125rem, 2vw, 1.375rem); font-weight: 600; }

.kicker {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--primary);
}

.mono { font-family: var(--font-mono); font-weight: 500; }

/* ---------- Layout Utilities ---------- */
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 var(--space-2xl); }
.section { padding: var(--space-4xl) 0; position: relative; }
.section--alt { background: var(--canvas); }
.section--yellow { background: var(--bright-yellow); }
.section--green { background: var(--bright-green); }
.section--orange { background: var(--bright-orange); }
.section--deep { background: var(--deep-natural); color: var(--ink-on-deep); }
.section--deep h1, .section--deep h2, .section--deep h3 { color: var(--ink-on-deep); }

.section-header { max-width: 760px; margin-bottom: var(--space-xl); }
.section-header--center { margin-left: auto; margin-right: auto; text-align: center; }
.section-header p { margin-top: var(--space-sm); color: var(--ink-secondary); font-size: 1.0625rem; line-height: 1.7; }
.section--deep .section-header p { color: var(--ink-on-deep-secondary); }

/* ---------- Header / Navigation ---------- */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-height);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--space-2xl);
  background: transparent;
  transition: background var(--duration) var(--ease), box-shadow var(--duration) var(--ease);
}

.header.scrolled {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 rgba(26, 46, 26, 0.06);
}

/* Nav text: dark on light hero */
.nav__link, .logo__text { color: var(--ink); transition: color var(--duration) var(--ease); }
.nav__link { font-size: 0.875rem; font-weight: 500; position: relative; }
.nav__link:hover { color: var(--primary); }
.nav__link.active { color: var(--primary); font-weight: 600; }
.nav__link.active::after {
  content: ''; position: absolute; bottom: -6px; left: 0; right: 0;
  height: 2px; background: var(--primary); border-radius: 1px;
}

.logo { display: flex; align-items: center; gap: 12px; }
.logo__img { height: 36px; width: auto; display: block; }
.logo__text {
  font-family: var(--font-body);
  font-size: 1.0625rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--ink);
}

.nav { display: flex; align-items: center; gap: 32px; }
.nav__links { display: flex; gap: 28px; }

.lang-switch { display: flex; align-items: center; gap: 6px; font-size: 0.8125rem; }
.lang-switch a { padding: 4px 8px; border-radius: 4px; color: var(--ink-secondary); font-weight: 500; transition: all var(--duration) var(--ease); }
.lang-switch a.active { color: var(--primary); font-weight: 600; background: var(--primary-tint); }
.lang-switch span { color: var(--ink-light); }

.nav__cta {
  display: inline-flex;
  align-items: center;
  padding: 10px 22px;
  border-radius: var(--radius-button);
  background: var(--primary);
  color: var(--white);
  font-size: 0.8125rem;
  font-weight: 600;
  transition: all var(--duration) var(--ease);
}

.nav__cta:hover { background: var(--primary-dark); color: var(--white); transform: translateY(-1px); box-shadow: var(--shadow-glow); }

/* ---------- Hero — bright, vivid, blog1.jpg shows through ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--bright-yellow);
}

.hero__bg { position: absolute; inset: 0; z-index: 0; }
.hero__bg img { width: 100%; height: 100%; object-fit: cover; object-position: center; }

/* Light overlay — lets the colorful blog1.jpg show through */
.hero__overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(135deg,
    rgba(255, 255, 255, 0.92) 0%,
    rgba(255, 255, 255, 0.80) 50%,
    rgba(255, 248, 225, 0.60) 100%);
}

.hero__content {
  position: relative;
  z-index: 2;
  max-width: 760px;
  padding: 0 var(--space-2xl);
  margin-top: var(--nav-height);
}

.hero__kicker { color: var(--color-orange); margin-bottom: var(--space-md); }

.hero__title {
  font-size: clamp(2.5rem, 5.5vw, 3.75rem);
  font-weight: 700;
  color: var(--ink);
  line-height: 1.2;
  margin-bottom: var(--space-md);
}

.hero__subtitle {
  font-size: 1.0625rem;
  color: var(--ink-secondary);
  line-height: 1.7;
  max-width: 600px;
  margin-bottom: var(--space-lg);
}

.hero__ctas { display: flex; gap: var(--space-sm); flex-wrap: wrap; }

/* Side spectrum dots */
.hero__spectrum {
  position: absolute; right: var(--space-2xl); top: 50%;
  transform: translateY(-50%); z-index: 2;
  display: flex; flex-direction: column; gap: 6px;
}
.hero__spectrum-dot { width: 16px; height: 16px; border-radius: 50%; box-shadow: 0 2px 8px rgba(0,0,0,0.1); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 14px 28px; border-radius: var(--radius-button);
  font-size: 0.875rem; font-weight: 600; font-family: var(--font-body);
  cursor: pointer; border: none; transition: all var(--duration) var(--ease); white-space: nowrap;
}

.btn--primary { background: var(--primary); color: var(--white); }
.btn--primary:hover { background: var(--primary-dark); color: var(--white); transform: translateY(-1px); box-shadow: var(--shadow-glow); }

.btn--secondary { background: transparent; color: var(--ink); border: 1.5px solid var(--ink); }
.btn--secondary:hover { background: var(--ink); color: var(--white); }

.btn--orange { background: var(--color-orange); color: var(--white); }
.btn--orange:hover { background: #E65100; color: var(--white); transform: translateY(-1px); }

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

/* ---------- Card Grid ---------- */
.grid { display: grid; gap: var(--space-md); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--2 { grid-template-columns: repeat(2, 1fr); }

/* ---------- Product Highlight Cards ---------- */
.card {
  background: var(--white);
  border-radius: var(--radius-card);
  padding: var(--space-lg);
  box-shadow: var(--shadow-card);
  border: 1px solid var(--border-subtle);
  transition: transform var(--duration) var(--ease), box-shadow var(--duration) var(--ease), border-color var(--duration) var(--ease);
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow-elevated); border-color: var(--primary-light); }

.card__icon {
  width: 56px; height: 56px; border-radius: 14px;
  display: flex; align-items: center; justify-content: center; margin-bottom: var(--space-md);
}
.card__icon--red { background: var(--color-red-tint); }
.card__icon--orange { background: var(--color-orange-tint); }
.card__icon--yellow { background: var(--color-yellow-tint); }
.card__icon--green { background: var(--color-green-tint); }
.card__icon--blue { background: var(--color-blue-tint); }
.card__icon--purple { background: var(--color-purple-tint); }

.card__dot { width: 24px; height: 24px; border-radius: 50%; }
.card__dot--red { background: var(--color-red); }
.card__dot--orange { background: var(--color-orange); }
.card__dot--yellow { background: var(--color-yellow); }
.card__dot--green { background: var(--color-green); }
.card__dot--blue { background: var(--color-blue); }
.card__dot--purple { background: var(--color-purple); }

.card__title { font-size: 1.25rem; font-weight: 600; margin-bottom: var(--space-xs); }
.card__desc { font-size: 0.875rem; color: var(--ink-secondary); line-height: 1.6; }

/* ---------- Spectrum Strip Divider ---------- */
.spectrum-strip { display: flex; height: 6px; width: 100%; }
.spectrum-strip__cell { flex: 1; }

/* ---------- Split Section ---------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-xl); position: relative; }

.split__image {
  width: 100%; height: 360px; border-radius: var(--radius-card);
  overflow: hidden; background: var(--canvas); margin-bottom: var(--space-md); position: relative;
}

.split__label { font-size: 0.6875rem; font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase; margin-bottom: var(--space-xs); }
.split__label--green { color: var(--color-green); }
.split__label--blue { color: var(--color-blue); }

.split__title { font-size: 1.5rem; font-weight: 600; margin-bottom: var(--space-xs); }
.split__desc { font-size: 0.9375rem; color: var(--ink-secondary); line-height: 1.65; }

/* ---------- Certifications — bright yellow section ---------- */
.cert-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: var(--space-sm); }

.cert-card {
  background: var(--white);
  border-radius: 14px;
  padding: var(--space-lg);
  text-align: center;
  display: flex; flex-direction: column; align-items: center; gap: var(--space-xs);
  box-shadow: var(--shadow-card);
  border: 1px solid rgba(255, 255, 255, 0.6);
  transition: transform var(--duration) var(--ease), box-shadow var(--duration) var(--ease);
}
.cert-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-elevated); }

.cert-card__badge { width: 80px; height: 80px; margin-bottom: 4px; }
.cert-card__badge svg { width: 100%; height: 100%; }
.cert-card__name { font-size: 0.9375rem; font-weight: 600; color: var(--ink); }
.cert-card__desc { font-size: 0.75rem; color: var(--ink-muted); line-height: 1.4; }

.trust-row {
  display: flex; justify-content: space-between; align-items: center;
  padding-top: var(--space-md); margin-top: var(--space-md);
  border-top: 1px solid rgba(26, 46, 26, 0.10);
}
.trust-row span { font-size: 0.8125rem; color: var(--ink-secondary); }

/* ---------- Product Detail Cards ---------- */
.product-card {
  background: var(--white); border-radius: var(--radius-card); padding: var(--space-xl);
  display: flex; flex-direction: column; gap: var(--space-md);
  box-shadow: var(--shadow-card); border: 1px solid var(--border-subtle);
  transition: transform var(--duration) var(--ease), box-shadow var(--duration) var(--ease);
}
.product-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-elevated); }

.product-card__header { display: flex; align-items: center; gap: var(--space-sm); }
.product-card__swatch { width: 12px; height: 36px; border-radius: 4px; flex-shrink: 0; }
.product-card__swatch--yellow { background: var(--color-yellow); }
.product-card__swatch--red { background: var(--color-red); }
.product-card__swatch--gradient { background: linear-gradient(90deg, var(--color-yellow), var(--color-red)); }

.product-card__label { font-size: 0.6875rem; font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-muted); }
.product-card__title { font-size: 1.5rem; font-weight: 600; }
.product-card__desc { font-size: 0.875rem; color: var(--ink-secondary); line-height: 1.6; }

.product-card__features {
  list-style: none; display: flex; flex-direction: column; gap: 10px;
  padding-top: var(--space-sm); border-top: 1px solid var(--border-subtle);
}
.product-card__features li { font-size: 0.8125rem; color: var(--ink); padding-left: 20px; position: relative; }
.product-card__features li::before {
  content: ''; position: absolute; left: 0; top: 8px;
  width: 6px; height: 6px; border-radius: 50%; background: var(--primary);
}

/* ---------- Breeding Section ---------- */
.breeding { display: grid; grid-template-columns: 560px 1fr; gap: var(--space-xl); align-items: center; }

.breeding__image {
  width: 100%; height: 420px; border-radius: var(--radius-card);
  overflow: hidden; background: var(--canvas); position: relative;
}
.breeding__image img { width: 100%; height: 100%; object-fit: cover; position: relative; z-index: 1; }

.breeding__text p { font-size: 1.0625rem; color: var(--ink); line-height: 1.7; margin-bottom: var(--space-md); }

.breeding__quote { padding-left: var(--space-md); border-left: 3px solid var(--color-red); margin-top: var(--space-lg); }
.breeding__quote p {
  font-family: var(--font-display); font-size: 1.125rem; font-weight: 500;
  color: var(--ink-secondary); line-height: 1.6; margin: 0;
}

/* ---------- Variety Cards ---------- */
.variety-card {
  background: var(--white); border-radius: var(--radius-card); padding: var(--space-xl);
  display: flex; flex-direction: column; gap: var(--space-md);
  box-shadow: var(--shadow-card); border: 1px solid var(--border-subtle);
}

.variety-card__header { display: flex; align-items: center; gap: var(--space-md); }
.variety-card__swatch { width: 28px; height: 28px; border-radius: 50%; flex-shrink: 0; }
.variety-card__swatch--red { background: var(--color-red); }
.variety-card__swatch--purple { background: var(--color-purple); }

.variety-card__kicker { font-size: 0.6875rem; font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-muted); }
.variety-card__title { font-size: 1.5rem; font-weight: 600; }
.variety-card__desc { font-size: 0.875rem; color: var(--ink-secondary); line-height: 1.6; }

.variety-card__specs { display: flex; flex-direction: column; gap: var(--space-xs); padding-top: var(--space-md); border-top: 1px solid var(--border-subtle); }
.variety-card__spec { display: flex; justify-content: space-between; align-items: center; }
.variety-card__spec-label { font-size: 0.8125rem; color: var(--ink-secondary); }
.variety-card__spec-value { font-family: var(--font-mono); font-size: 0.8125rem; font-weight: 500; color: var(--ink); }

/* ---------- Spectrum Bar ---------- */
.spectrum { text-align: center; }
.spectrum__bar {
  width: 100%; height: 80px; border-radius: 14px; margin: var(--space-md) 0;
  background: linear-gradient(90deg,
    var(--color-purple) 0%, var(--color-blue) 30%, var(--color-green) 50%,
    var(--color-yellow) 70%, var(--color-orange) 85%, var(--color-red) 100%);
  box-shadow: var(--shadow-card);
}
.spectrum__labels { display: flex; justify-content: space-between; align-items: center; }
.spectrum__labels span { font-family: var(--font-mono); font-size: 0.8125rem; font-weight: 500; color: var(--ink); }
.spectrum__range { font-size: 0.75rem; color: var(--ink-muted); }

/* ---------- Factory Visit — bright green section ---------- */
.visit { display: grid; grid-template-columns: 600px 1fr; min-height: 480px; }

.visit__image { overflow: hidden; background: var(--bright-green); }
.visit__image img { width: 100%; height: 100%; object-fit: cover; }

.visit__content {
  background: var(--bright-green);
  color: var(--ink);
  padding: var(--space-3xl);
  display: flex; flex-direction: column; justify-content: center; gap: var(--space-md);
}

.visit__kicker { color: var(--primary); }
.visit__title { color: var(--ink); }
.visit__desc { color: var(--ink-secondary); line-height: 1.7; }

/* ---------- Steps ---------- */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; }
.step { padding: var(--space-lg) var(--space-lg) var(--space-lg) 0; display: flex; flex-direction: column; gap: var(--space-md); }
.step__num { font-family: var(--font-display); font-size: 2.5rem; font-weight: 800; color: var(--primary); line-height: 1; }
.step__line { width: 40px; height: 1.5px; background: var(--border-strong); }
.step__title { font-size: 1.125rem; font-weight: 600; }
.step__desc { font-size: 0.875rem; color: var(--ink-secondary); line-height: 1.6; }

/* ---------- Final CTA — bright orange section ---------- */
.cta-final {
  text-align: center;
  background: linear-gradient(135deg, var(--bright-orange) 0%, var(--bright-yellow) 100%);
  color: var(--ink);
  position: relative;
  overflow: hidden;
}

.cta-final__inner { max-width: 900px; margin: 0 auto; position: relative; z-index: 2; }
.cta-final__kicker { color: var(--color-orange); }
.cta-final__title {
  font-size: clamp(2rem, 4vw, 3.25rem);
  font-weight: 700; color: var(--ink); margin: var(--space-sm) 0;
}
.cta-final__desc { font-size: 1rem; color: var(--ink-secondary); line-height: 1.7; max-width: 680px; margin: 0 auto var(--space-lg); }
.cta-final__buttons { display: flex; gap: var(--space-sm); justify-content: center; flex-wrap: wrap; }

/* ---------- Footer — deep forest green ---------- */
.footer {
  background: var(--deep-natural);
  color: var(--ink-on-deep-secondary);
  padding: var(--space-3xl) var(--space-2xl) var(--space-lg);
  position: relative;
}

.footer__spectrum { position: absolute; top: 0; left: 0; right: 0; height: 4px; display: flex; }
.footer__spectrum-cell { flex: 1; }

.footer__top {
  display: grid; grid-template-columns: 360px 1fr 1fr 1fr; gap: var(--space-2xl);
  max-width: var(--max-width); margin: 0 auto var(--space-xl); position: relative; z-index: 2;
}

.footer__brand { display: flex; flex-direction: column; gap: var(--space-md); }
.footer__logo { display: flex; align-items: center; gap: 12px; }
.footer__logo-img { height: 32px; width: auto; filter: brightness(0) invert(1); opacity: 0.9; }
.footer__logo-text { font-size: 1rem; font-weight: 700; letter-spacing: 0.12em; color: var(--ink-on-deep); }
.footer__tagline { font-size: 0.8125rem; color: var(--ink-on-deep-secondary); line-height: 1.6; }

.footer__col { display: flex; flex-direction: column; gap: var(--space-xs); }
.footer__col-title { font-size: 0.6875rem; font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase; color: var(--bright-green-deep); margin-bottom: var(--space-xs); }
.footer__col a { font-size: 0.8125rem; color: var(--ink-on-deep-secondary); transition: color var(--duration) var(--ease); }
.footer__col a:hover { color: var(--ink-on-deep); }

.footer__bottom {
  max-width: var(--max-width); margin: 0 auto;
  display: flex; justify-content: space-between; align-items: center;
  padding-top: var(--space-md); border-top: 1px solid rgba(255, 255, 255, 0.10);
}
.footer__bottom p { font-size: 0.75rem; color: var(--ink-on-deep-secondary); }

/* ---------- Scroll Animation ---------- */
.reveal { opacity: 0; transform: translateY(30px); transition: opacity 0.7s var(--ease), transform 0.7s var(--ease); }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ---------- Hamburger Menu ---------- */
.nav__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  z-index: 101;
}

.nav__toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--ink);
  border-radius: 1px;
  transition: all var(--duration) var(--ease);
  margin: 0 auto;
}

.nav__toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__toggle.open span:nth-child(2) { opacity: 0; }
.nav__toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.nav__mobile {
  display: none;
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  background: var(--white);
  flex-direction: column;
  padding: var(--space-md) var(--space-md) var(--space-lg);
  gap: var(--space-xs);
  box-shadow: 0 8px 32px rgba(26, 46, 26, 0.12);
  border-top: 1px solid var(--border-subtle);
  z-index: 99;
  max-height: calc(100vh - var(--nav-height));
  overflow-y: auto;
}

.nav__mobile.open { display: flex; }

.nav__mobile a {
  padding: 12px 16px;
  border-radius: 8px;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--ink);
  transition: background var(--duration) var(--ease);
}

.nav__mobile a:hover, .nav__mobile a.active {
  background: var(--primary-tint);
  color: var(--primary);
}

.nav__mobile .lang-switch-mobile {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 12px 16px;
  border-top: 1px solid var(--border-subtle);
  margin-top: var(--space-xs);
}

.nav__mobile .lang-switch-mobile a {
  padding: 4px 10px;
  border-radius: 4px;
  font-size: 0.8125rem;
}

.nav__mobile .lang-switch-mobile a.active {
  background: var(--primary);
  color: var(--white);
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
  .grid--3 { grid-template-columns: repeat(2, 1fr); }
  .cert-grid { grid-template-columns: repeat(3, 1fr); }
  .split { grid-template-columns: 1fr; }
  .breeding { grid-template-columns: 1fr; }
  .breeding__image { height: 320px; }
  .visit { grid-template-columns: 1fr; }
  .visit__image { height: 320px; }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .footer__top { grid-template-columns: 1fr 1fr; gap: var(--space-lg); }
  .nav__links { display: none; }
  .lang-switch { display: none; }
  .nav__toggle { display: flex; }
  .hero__spectrum { display: none; }
  .hero__content { max-width: 100%; }
  .trust-row { flex-wrap: wrap; gap: var(--space-sm); justify-content: center; }
}

@media (max-width: 640px) {
  :root {
    --space-4xl: 80px;
    --space-3xl: 56px;
    --space-2xl: 40px;
  }
  .container { padding: 0 20px; }
  .section { padding: 56px 0; }
  .grid--4, .grid--3, .grid--2 { grid-template-columns: 1fr; }
  .cert-grid { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: 1fr; }
  .footer__top { grid-template-columns: 1fr; }
  .footer__bottom { flex-direction: column; gap: var(--space-xs); text-align: center; }
  .hero__content { padding: 0 20px; margin-top: 60px; }
  .header { padding: 0 20px; height: 60px; }
  .hero { min-height: 100vh; }
  .hero__title { font-size: 2rem; }
  .hero__subtitle { font-size: 0.9375rem; }
  .hero__ctas { flex-direction: column; width: 100%; }
  .hero__ctas .btn { width: 100%; }
  .section-header h2 { font-size: 1.5rem; }
  .section-header p { font-size: 0.9375rem; }
  .card { padding: 20px; }
  .card__title { font-size: 1.125rem; }
  .product-card { padding: 20px; }
  .product-card__title { font-size: 1.375rem; }
  .variety-card { padding: 20px; }
  .variety-card__title { font-size: 1.375rem; }
  .split__image { height: 240px; }
  .split__title { font-size: 1.375rem; }
  .breeding__image { height: 240px; }
  .visit__image { height: 240px; }
  .visit__content { padding: 40px 20px; }
  .visit__title { font-size: 1.5rem; }
  .step { padding: 20px 0; }
  .step__num { font-size: 2.25rem; }
  .cert-card { padding: 16px 12px; }
  .cert-card__badge { width: 56px; height: 56px; }
  .cert-card__name { font-size: 0.8125rem; }
  .cert-card__desc { font-size: 0.6875rem; }
  .spectrum__bar { height: 48px; }
  .cta-final__title { font-size: 1.75rem; }
  .cta-final__desc { font-size: 0.9375rem; }
  .cta-final__buttons { flex-direction: column; width: 100%; }
  .cta-final__buttons .btn { width: 100%; }
  .footer { padding: 40px 20px 20px; }
  .faq-item { padding: 16px; }
  .faq-item__q { font-size: 0.9375rem; }
  .faq-item__a { font-size: 0.875rem; }
  .app-tag { font-size: 0.75rem; padding: 6px 12px; }
  .btn { padding: 12px 24px; font-size: 0.8125rem; }
}

/* ============================================
   Product Page Styles
   ============================================ */

/* Product Hero */
.product-hero {
  padding-top: calc(var(--nav-height) + var(--space-3xl));
  padding-bottom: var(--space-3xl);
  position: relative;
  overflow: hidden;
}

.product-hero--red { background: linear-gradient(135deg, var(--color-red-tint) 0%, #FFF5F5 100%); }
.product-hero--yellow { background: linear-gradient(135deg, var(--color-yellow-tint) 0%, #FFFDE7 100%); }

.product-hero__content {
  display: grid;
  grid-template-columns: 1fr 400px;
  gap: var(--space-2xl);
  align-items: center;
}

.product-hero__info { max-width: 600px; }
.product-hero__name { font-size: clamp(2.5rem, 5vw, 3.5rem); margin: var(--space-sm) 0; }
.product-hero__desc { font-size: 1.0625rem; color: var(--ink-secondary); line-height: 1.7; margin-bottom: var(--space-lg); }

.product-hero__stats {
  display: flex;
  gap: var(--space-lg);
  flex-wrap: wrap;
}

.product-hero__stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.product-hero__stat-value {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--ink);
}

.product-hero__stat-label {
  font-size: 0.75rem;
  color: var(--ink-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* Product visual swatch */
.product-swatch {
  width: 360px;
  height: 360px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto;
  position: relative;
}

.product-swatch--red {
  background: radial-gradient(circle at 35% 35%, #FF6B6B 0%, var(--color-red) 40%, #B71C1C 100%);
  box-shadow: 0 20px 60px rgba(229, 57, 53, 0.30);
}

.product-swatch--yellow {
  background: radial-gradient(circle at 35% 35%, #FFF176 0%, var(--color-yellow) 40%, #F57F17 100%);
  box-shadow: 0 20px 60px rgba(253, 216, 53, 0.30);
}

.product-swatch__label {
  font-family: var(--font-display);
  font-size: 1.25rem;
  color: rgba(255, 255, 255, 0.95);
  text-align: center;
  font-weight: 600;
}

/* Spec Table */
.spec-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--white);
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.spec-table th,
.spec-table td {
  padding: var(--space-sm) var(--space-lg);
  text-align: left;
  border-bottom: 1px solid var(--border-subtle);
}

.spec-table th {
  background: var(--canvas);
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--ink);
  width: 40%;
}

.spec-table td {
  font-size: 0.875rem;
  color: var(--ink-secondary);
}

.spec-table td strong { color: var(--ink); font-weight: 600; }
.spec-table tr:last-child th, .spec-table tr:last-child td { border-bottom: none; }

/* Info cards row */
.info-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-md); }

.info-card {
  background: var(--white);
  border-radius: var(--radius-card);
  padding: var(--space-lg);
  box-shadow: var(--shadow-card);
  border: 1px solid var(--border-subtle);
  text-align: center;
}

.info-card__icon {
  width: 48px; height: 48px; border-radius: 12px;
  margin: 0 auto var(--space-sm);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem;
}

.info-card__title { font-size: 1rem; font-weight: 600; margin-bottom: var(--space-xs); }
.info-card__desc { font-size: 0.8125rem; color: var(--ink-secondary); line-height: 1.5; }

/* Application tags */
.app-tags { display: flex; flex-wrap: wrap; gap: var(--space-xs); }

.app-tag {
  padding: 8px 16px;
  border-radius: 20px;
  font-size: 0.8125rem;
  font-weight: 500;
  background: var(--white);
  border: 1px solid var(--border-subtle);
  color: var(--ink-secondary);
}

.app-tag--red { background: var(--color-red-tint); color: #B71C1C; border-color: var(--color-red-tint); }
.app-tag--yellow { background: var(--color-yellow-tint); color: #E65100; border-color: var(--color-yellow-tint); }

/* FAQ */
.faq-list { display: flex; flex-direction: column; gap: var(--space-sm); }

.faq-item {
  background: var(--white);
  border-radius: var(--radius-card);
  padding: var(--space-lg);
  box-shadow: var(--shadow-card);
  border: 1px solid var(--border-subtle);
}

.faq-item__q {
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: var(--space-xs);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.faq-item__q::after {
  content: '+';
  font-size: 1.5rem;
  font-weight: 300;
  color: var(--ink-muted);
  transition: transform var(--duration) var(--ease);
}

.faq-item.open .faq-item__q::after { transform: rotate(45deg); }

.faq-item__a {
  font-size: 0.9375rem;
  color: var(--ink-secondary);
  line-height: 1.7;
  display: none;
}

.faq-item.open .faq-item__a { display: block; }

/* Plantation stats */
.plantation-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

.plantation-stat {
  text-align: center;
  padding: var(--space-lg);
  background: var(--white);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
}

.plantation-stat__num {
  font-family: var(--font-display);
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--primary);
}

.plantation-stat__label {
  font-size: 0.875rem;
  color: var(--ink-secondary);
  margin-top: var(--space-xs);
}

/* Product range cards */
.range-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-md); }

.range-card {
  background: var(--white);
  border-radius: var(--radius-card);
  padding: var(--space-lg);
  box-shadow: var(--shadow-card);
  border: 1px solid var(--border-subtle);
  text-align: center;
}

.range-card__swatch {
  width: 60px; height: 60px; border-radius: 50%;
  margin: 0 auto var(--space-sm);
}

.range-card__peak {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--ink);
  margin-bottom: var(--space-xs);
}

.range-card__desc {
  font-size: 0.8125rem;
  color: var(--ink-secondary);
}

/* Related product link */
.related-link {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-lg);
  background: var(--white);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  border: 1px solid var(--border-subtle);
  transition: transform var(--duration) var(--ease), box-shadow var(--duration) var(--ease);
}

.related-link:hover { transform: translateY(-4px); box-shadow: var(--shadow-elevated); }

.related-link__swatch { width: 48px; height: 48px; border-radius: 12px; flex-shrink: 0; }
.related-link__title { font-size: 1rem; font-weight: 600; color: var(--ink); }
.related-link__desc { font-size: 0.8125rem; color: var(--ink-secondary); }
.related-link__arrow { margin-left: auto; font-size: 1.5rem; color: var(--ink-muted); }

@media (max-width: 1024px) {
  .product-hero__content { grid-template-columns: 1fr; }
  .product-swatch { width: 240px; height: 240px; }
  .info-cards { grid-template-columns: 1fr 1fr; }
  .plantation-stats { grid-template-columns: 1fr; }
  .range-grid { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .product-hero { padding-top: 80px; }
  .product-hero__name { font-size: 2rem; }
  .product-hero__desc { font-size: 0.9375rem; }
  .product-hero__stats { flex-direction: row; gap: 20px; flex-wrap: wrap; }
  .product-hero__stat-value { font-size: 1.5rem; }
  .product-swatch { width: 180px; height: 180px; }
  .product-swatch__label { font-size: 1.125rem; }
  .info-cards { grid-template-columns: 1fr 1fr; gap: 12px; }
  .info-card { padding: 16px 12px; }
  .info-card__icon { width: 40px; height: 40px; font-size: 1.25rem; }
  .info-card__title { font-size: 0.9375rem; }
  .info-card__desc { font-size: 0.75rem; }
  .spec-table-wrapper { overflow-x: auto; -webkit-overflow-scrolling: touch; margin: 0 -20px; padding: 0 20px; }
  .spec-table { min-width: 400px; }
  .spec-table th, .spec-table td { padding: 10px 12px; font-size: 0.75rem; }
  .plantation-stat__num { font-size: 1.75rem; }
  .range-card__swatch { width: 48px; height: 48px; }
  .range-card__peak { font-size: 1rem; }
  .related-link { flex-wrap: wrap; padding: 16px; }
  .related-link__arrow { margin-left: 0; }
}