/* ========================================
   NanoAgroTech — Design System
   Concept: Nano-tech precision meets agricultural depth
   Palette: Deep chlorophyll green + charcoal + cyan/teal accent
   Typography: Space Grotesk (display) + Pretendard (body/Korean)
   ======================================== */

/* --- Design Tokens --- */
:root {
  --color-bg: #fafbf9;
  --color-surface: #ffffff;
  --color-surface-2: #f3f5f0;
  --color-surface-offset: #edf0ea;
  --color-surface-dynamic: #e5e9e1;
  --color-divider: #e0e3da;
  --color-border: #d6dad0;

  --color-text: #14201a;
  --color-text-muted: #6b7568;
  --color-text-faint: #aab2a6;
  --color-text-inverse: #f5f8f3;

  --color-primary: #1a6b3d;
  --color-primary-hover: #145230;
  --color-primary-active: #0f3d24;
  --color-primary-highlight: #d4e9d8;
  --color-primary-light: #3a8a55;

  --color-accent: #0d9488;
  --color-accent-hover: #0b7a70;
  --color-accent-highlight: #c9e8e2;

  --color-charcoal: #1a1f1c;
  --color-charcoal-2: #222824;
  --color-charcoal-3: #2d3530;

  --color-success: #2d9c3a;
  --color-success-highlight: #d0edce;

  --radius-sm: 0.375rem;
  --radius-md: 0.625rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --radius-2xl: 2rem;
  --radius-full: 9999px;

  --shadow-sm: 0 1px 3px rgba(20, 32, 26, 0.06);
  --shadow-md: 0 4px 16px rgba(20, 32, 26, 0.08);
  --shadow-lg: 0 12px 40px rgba(20, 32, 26, 0.12);
  --shadow-xl: 0 24px 60px rgba(20, 32, 26, 0.16);

  --font-display: 'Space Grotesk', 'Pretendard', sans-serif;
  --font-body: 'Pretendard', 'Noto Sans KR', sans-serif;

  --transition: 200ms cubic-bezier(0.16, 1, 0.3, 1);
}

:root {
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.75vw, 1.5rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1.25vw, 2.25rem);
  --text-2xl: clamp(2rem, 1.2rem + 2.5vw, 3.5rem);

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  --content-default: 960px;
  --content-wide: 1200px;
  --content-full: 100%;
}

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

html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  min-height: 100dvh;
  line-height: 1.6;
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text);
  background-color: var(--color-bg);
  overflow-x: hidden;
}

img, picture, video, canvas, svg { display: block; max-width: 100%; height: auto; }
ul[role='list'], ol[role='list'] { list-style: none; }
input, button, textarea, select { font: inherit; color: inherit; }

h1, h2, h3, h4, h5, h6 {
  text-wrap: balance;
  line-height: 1.2;
  font-family: var(--font-display);
  font-weight: 600;
}

p, li, figcaption { text-wrap: pretty; max-width: 72ch; }

::selection { background: color-mix(in oklab, var(--color-primary) 25%, transparent); color: var(--color-text); }
:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 3px; border-radius: var(--radius-sm); }
button { cursor: pointer; background: none; border: none; }
a { color: inherit; text-decoration: none; transition: color var(--transition); }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* --- Layout --- */
.container { width: 100%; max-width: var(--content-wide); margin-inline: auto; padding-inline: var(--space-6); }
.section { padding-block: clamp(var(--space-12), 6vw, var(--space-24)); }

/* --- Buttons --- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-size: var(--text-sm); font-weight: 600; font-family: var(--font-body);
  border-radius: var(--radius-full);
  transition: all var(--transition);
  white-space: nowrap; border: 2px solid transparent;
  letter-spacing: -0.01em;
}
.btn--primary { background: var(--color-primary); color: var(--color-text-inverse); }
.btn--primary:hover { background: var(--color-primary-hover); transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn--ghost { background: transparent; color: var(--color-text); border-color: var(--color-border); }
.btn--ghost:hover { border-color: var(--color-primary); color: var(--color-primary); }
.btn--sm { padding: var(--space-2) var(--space-4); font-size: var(--text-xs); }
.btn--block { width: 100%; }

/* --- Header --- */
.header {
  position: sticky; top: 0; z-index: 100;
  background: color-mix(in oklab, var(--color-bg) 88%, transparent);
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.header--scrolled { border-bottom-color: var(--color-divider); box-shadow: var(--shadow-sm); }
.header__inner { display: flex; align-items: center; justify-content: space-between; gap: var(--space-4); height: 72px; }

/* Logo */
.logo { display: flex; align-items: center; gap: var(--space-2); color: var(--color-primary); font-weight: 700; font-size: var(--text-lg); font-family: var(--font-display); flex-shrink: 0; }
.logo__mark { flex-shrink: 0; color: var(--color-primary); }
.logo__img { height: 36px; width: auto; border-radius: var(--radius-sm); display: block; }
.logo__img--footer { height: 32px; }
.logo--light { color: #a8c9b5; }
.logo--light .logo__mark { color: #a8c9b5; }

/* Nav */
.nav { display: flex; align-items: center; }
.nav__list { display: flex; align-items: center; gap: var(--space-1); }
.nav__link {
  display: inline-flex; align-items: center; gap: var(--space-1);
  padding: var(--space-2) var(--space-3); font-size: var(--text-sm); font-weight: 500;
  border-radius: var(--radius-full); color: var(--color-text);
  transition: color var(--transition), background var(--transition);
}
.nav__link:hover { color: var(--color-primary); background: var(--color-primary-highlight); }

/* Nav Dropdown */
.nav__item--dropdown { position: relative; }
.nav__link--dropdown { cursor: pointer; }
.nav__link--dropdown:hover {
  color: var(--color-accent);
  background: rgba(13, 148, 136, 0.12);
}
.nav__dropdown {
  position: absolute; top: 100%; left: 50%; transform: translateX(-50%) translateY(-12px);
  min-width: 280px;
  background: var(--color-surface); border: 1px solid var(--color-divider);
  border-radius: var(--radius-lg); box-shadow: 0 12px 40px rgba(0,0,0,0.18), 0 4px 12px rgba(0,0,0,0.08);
  padding: var(--space-2); margin-top: 8px;
  opacity: 0; visibility: hidden;
  transition: opacity 0.25s ease, transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.25s;
  z-index: 100;
}
.nav__dropdown::before {
  content: ''; position: absolute; top: -6px; left: 50%; transform: translateX(-50%) rotate(45deg);
  width: 12px; height: 12px; background: var(--color-surface);
  border-left: 1px solid var(--color-divider); border-top: 1px solid var(--color-divider);
  border-radius: 2px 0 0 0;
}
.nav__item--dropdown:hover .nav__dropdown,
.nav__item--dropdown:focus-within .nav__dropdown {
  opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0);
}
.nav__dropdown-link {
  display: flex; align-items: center; gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-sm); font-weight: 600; color: var(--color-text);
  border-radius: var(--radius-md);
  transition: color 0.2s ease, background 0.2s ease, transform 0.2s ease;
  position: relative; overflow: hidden;
}
.nav__dropdown-link::before {
  content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 3px;
  background: var(--dropdown-accent, var(--color-accent));
  border-radius: 3px; transform: scaleY(0); transition: transform 0.2s ease;
}
.nav__dropdown-link:hover {
  color: var(--dropdown-accent, var(--color-accent));
  background: var(--color-primary-highlight);
  transform: translateX(4px);
}
.nav__dropdown-link:hover::before { transform: scaleY(1); }
.nav__dropdown-icon {
  width: 36px; height: 36px; border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
  font-size: 18px;
}
.nav__dropdown-text { display: flex; flex-direction: column; gap: 2px; }
.nav__dropdown-name { font-size: var(--text-sm); font-weight: 700; }
.nav__dropdown-desc { font-size: 11px; font-weight: 400; color: var(--color-text-faint); }

/* Per-product accent colors */
.nav__dropdown-link[data-product="yeoprok"] { --dropdown-accent: #16a34a; }
.nav__dropdown-link[data-product="yeoprok"] .nav__dropdown-icon { background: rgba(22, 163, 74, 0.12); color: #16a34a; }
.nav__dropdown-link[data-product="hwangje"] { --dropdown-accent: #d97706; }
.nav__dropdown-link[data-product="hwangje"] .nav__dropdown-icon { background: rgba(217, 119, 6, 0.12); color: #d97706; }
.nav__dropdown-link[data-product="yangaeg"] { --dropdown-accent: #7c3aed; }
.nav__dropdown-link[data-product="yangaeg"] .nav__dropdown-icon { background: rgba(124, 58, 237, 0.12); color: #7c3aed; }
.nav__dropdown-link[data-product="yeomryu"] { --dropdown-accent: #0891b2; }
.nav__dropdown-link[data-product="yeomryu"] .nav__dropdown-icon { background: rgba(8, 145, 178, 0.12); color: #0891b2; }

/* Dropdown header label */
.nav__dropdown-header {
  font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em;
  color: var(--color-text-faint); padding: var(--space-2) var(--space-4) var(--space-1);
}

.nav__close, .nav__toggle { display: none; }

/* Header actions */
.header__actions { display: flex; align-items: center; gap: var(--space-2); }

/* Language Switcher */
.lang-switcher {
  display: flex; align-items: center; gap: 1px;
  background: var(--color-divider); border-radius: var(--radius-full); padding: 2px;
}
.lang-btn {
  padding: 4px 10px; font-size: 11px; font-weight: 700; letter-spacing: 0.02em;
  border-radius: var(--radius-full); color: var(--color-text-faint);
  transition: color 0.2s ease, background 0.2s ease;
  cursor: pointer; text-decoration: none; display: inline-block;
}
.lang-btn:hover { color: var(--color-text); }
.lang-btn--active {
  background: var(--color-primary); color: #fff;
}

/* --- Hero --- */
.hero {
  position: relative; min-height: 92vh;
  display: flex; align-items: center; overflow: hidden;
}
.hero__bg {
  position: absolute; inset: 0;
  background: linear-gradient(135deg, #0a1f15 0%, #14301e 30%, #1a4d2e 60%, #0d2e1a 100%);
}
.hero__bg.has-image {
  background-size: cover; background-position: center;
}
.hero__overlay {
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(10,15,12,0.5) 0%, rgba(10,20,15,0.7) 100%);
}
.hero__grid-pattern {
  position: absolute; inset: 0; opacity: 0.06;
  background-image:
    linear-gradient(rgba(45, 212, 191, 0.5) 1px, transparent 1px),
    linear-gradient(90deg, rgba(45, 212, 191, 0.5) 1px, transparent 1px);
  background-size: 60px 60px;
}
.hero__content { position: relative; z-index: 2; }
.hero__inner { max-width: 720px; padding-block: var(--space-20); }
.hero__badge {
  display: inline-flex; align-items: center; gap: var(--space-2);
  padding: var(--space-1) var(--space-4);
  background: rgba(45, 212, 191, 0.12); backdrop-filter: blur(8px);
  border: 1px solid rgba(45, 212, 191, 0.3);
  border-radius: var(--radius-full);
  font-size: var(--text-sm); font-weight: 500;
  margin-bottom: var(--space-5); color: #5eead4;
}
.hero__badge-dot {
  width: 8px; height: 8px; border-radius: var(--radius-full);
  background: #2dd4bf; box-shadow: 0 0 8px #2dd4bf;
  animation: pulse-dot 2s ease-in-out infinite;
}
@keyframes pulse-dot { 0%, 100% { opacity: 0.5; } 50% { opacity: 1; } }

.hero__title {
  font-size: var(--text-2xl); color: #fff; font-weight: 700;
  line-height: 1.15; margin-bottom: var(--space-5);
  letter-spacing: -0.02em;
}
.hero__title-accent {
  background: linear-gradient(135deg, #2dd4bf 0%, #5fb87f 100%);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}
.hero__desc {
  font-size: var(--text-lg); color: rgba(255,255,255,0.78);
  max-width: 560px; margin-bottom: var(--space-8); line-height: 1.55;
}
.hero__actions { display: flex; gap: var(--space-3); flex-wrap: wrap; }
.hero .btn--ghost { color: #fff; border-color: rgba(255,255,255,0.3); }
.hero .btn--ghost:hover { border-color: #fff; background: rgba(255,255,255,0.08); color: #fff; }

.hero__scroll {
  position: absolute; bottom: var(--space-8); left: 50%; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: var(--space-2);
  color: rgba(255,255,255,0.4); font-size: var(--text-xs); letter-spacing: 0.1em;
  z-index: 2;
}

/* --- Trust Strip --- */
.trust {
  background: var(--color-charcoal);
  padding-block: var(--space-10);
  border-bottom: 1px solid rgba(255,255,255,0.05);
}
.trust__grid {
  display: flex; align-items: center; justify-content: space-between;
  gap: var(--space-4); flex-wrap: wrap;
}
.trust__item { text-align: center; flex: 1; min-width: 140px; }
.trust__num {
  font-size: var(--text-2xl); font-weight: 700; color: #5fb87f;
  font-family: var(--font-display);
}
.trust__suffix { font-size: var(--text-xl); color: #2dd4bf; font-weight: 700; font-family: var(--font-display); }
.trust__label {
  display: block; font-size: var(--text-xs); color: rgba(255,255,255,0.5);
  margin-top: var(--space-1);
}
.trust__note { font-size: 0.6em; vertical-align: super; color: #2dd4bf; }
.trust__divider {
  width: 1px; height: 40px; background: rgba(255,255,255,0.1);
}
.trust__disclaimer {
  font-size: var(--text-xs); color: rgba(255,255,255,0.3);
  text-align: center; margin-top: var(--space-4);
}

/* --- Section Head --- */
.section__head { margin-bottom: var(--space-12); }
.section__head--center { text-align: center; max-width: 720px; margin-inline: auto; }
.section__eyebrow {
  display: inline-block; font-size: var(--text-xs); font-weight: 600;
  color: var(--color-accent); text-transform: uppercase;
  letter-spacing: 0.12em; margin-bottom: var(--space-3);
  font-family: var(--font-display);
}
.section__title {
  font-size: var(--text-xl); font-weight: 600; margin-bottom: var(--space-4);
  color: var(--color-text); letter-spacing: -0.02em;
}
.section__title--sm { font-size: var(--text-lg); }
.section__desc { font-size: var(--text-base); color: var(--color-text-muted); line-height: 1.7; }

/* --- Technology --- */
.tech { background: var(--color-bg); }
.tech__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-5); margin-bottom: var(--space-16); }
.tech__card {
  background: var(--color-surface); border: 1px solid var(--color-divider);
  border-radius: var(--radius-xl); overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.tech__card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--color-primary); }
.tech__card--featured {
  border-color: var(--color-accent);
  background: linear-gradient(180deg, var(--color-accent-highlight) 0%, var(--color-surface) 20%);
}
.tech__visual {
  height: 160px; display: flex; align-items: center; justify-content: center;
  padding: var(--space-4); color: var(--color-primary);
  background: linear-gradient(135deg, var(--color-surface-2) 0%, var(--color-surface-offset) 100%);
}
.tech__visual--2 { color: var(--color-accent); }
.tech__visual--3 { color: var(--color-primary-light); }
.tech__body { padding: var(--space-6); }
.tech__num {
  display: inline-block; font-size: var(--text-xs); font-weight: 700;
  color: var(--color-accent); font-family: var(--font-display);
  margin-bottom: var(--space-2); letter-spacing: 0.1em;
}
.tech__title { font-size: var(--text-lg); font-weight: 600; margin-bottom: var(--space-2); color: var(--color-text); }
.tech__desc { font-size: var(--text-sm); color: var(--color-text-muted); line-height: 1.6; margin-bottom: var(--space-4); }
.tech__tags { display: flex; flex-wrap: wrap; gap: var(--space-2); }
.tech__tags li {
  font-size: var(--text-xs); font-weight: 500; color: var(--color-primary);
  background: var(--color-primary-highlight); padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
}

/* Tech diagram */
.tech__diagram {
  background: var(--color-surface); border: 1px solid var(--color-divider);
  border-radius: var(--radius-2xl); overflow: hidden;
  box-shadow: var(--shadow-md);
}
.tech__diagram-content { display: grid; grid-template-columns: 1fr 1fr; }
.tech__diagram-img {
  min-height: 360px;
  background: linear-gradient(135deg, #1a2e1a 0%, #2d5a3e 40%, #1a4d2e 100%);
  background-size: cover; background-position: center;
}
.tech__diagram-img.has-image { background: url('') center/cover; }
.tech__diagram-text { padding: var(--space-12); display: flex; flex-direction: column; justify-content: center; }
.tech__diagram-title { font-size: var(--text-lg); font-weight: 600; margin-bottom: var(--space-3); color: var(--color-text); }
.tech__diagram-desc { font-size: var(--text-sm); color: var(--color-text-muted); line-height: 1.7; margin-bottom: var(--space-6); }
.tech__steps { display: flex; flex-direction: column; gap: var(--space-4); }
.tech__step { display: flex; align-items: center; gap: var(--space-3); }
.tech__step-num {
  font-size: var(--text-xs); font-weight: 700; color: var(--color-accent);
  font-family: var(--font-display); flex-shrink: 0; min-width: 56px;
}
.tech__step-text { font-size: var(--text-sm); color: var(--color-text); font-weight: 500; }

/* --- Products --- */
.products { background: var(--color-surface-2); }
.products__grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-5); }
.product-card {
  background: var(--color-surface); border: 1px solid var(--color-divider);
  border-radius: var(--radius-xl); overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  position: relative;
}
.product-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--color-primary); }
.product-card--featured { border-color: var(--color-accent); }
.product-card__badge {
  position: absolute; top: var(--space-3); right: var(--space-3); z-index: 2;
  background: var(--color-accent); color: #fff;
  font-size: var(--text-xs); font-weight: 600;
  padding: var(--space-1) var(--space-3); border-radius: var(--radius-full);
}
.product-card__img {
  height: 180px; position: relative; overflow: hidden;
  background: linear-gradient(135deg, #1a3a2a 0%, #2d6a3e 50%, #4a8f5a 100%);
  display: flex; align-items: flex-end; padding: var(--space-4);
}
.product-card__img--yeoprok { background: linear-gradient(135deg, #1a3a2a 0%, #2d6a3e 50%, #4a8f5a 100%); }
.product-card__img--hwangje { background: linear-gradient(135deg, #2a1a3a 0%, #5a3a7a 50%, #8f6ab8 100%); }
.product-card__img--yangaeg { background: linear-gradient(135deg, #3a1414 0%, #7a2626 50%, #b84545 100%); }
.product-card__img--yeomryu { background: linear-gradient(135deg, #3a2410 0%, #8a5a1f 50%, #d4953f 100%); }
.product-card__bottle {
  position: absolute; z-index: 1; bottom: 0; left: 50%;
  transform: translateX(-50%);
  height: 94%; width: auto; object-fit: contain;
  filter: drop-shadow(0 10px 18px rgba(0,0,0,0.28));
  pointer-events: none;
}
.product-card__tag {
  position: relative; z-index: 2;
  font-size: var(--text-xs); font-weight: 600; color: #fff;
  background: rgba(255,255,255,0.15); backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,0.25);
  padding: var(--space-1) var(--space-3); border-radius: var(--radius-full);
}
.product-card__body { padding: var(--space-5); }
.product-card__name {
  font-size: var(--text-base); font-weight: 700; color: var(--color-text);
  margin-bottom: var(--space-2); font-family: var(--font-display);
  letter-spacing: -0.01em;
}
.product-card__sub { font-size: var(--text-sm); font-weight: 400; color: var(--color-text-muted); }
.product-card__desc { font-size: var(--text-sm); color: var(--color-text-muted); line-height: 1.6; margin-bottom: var(--space-4); }
.product-card__specs {
  display: flex; flex-direction: column; gap: var(--space-2);
  margin-bottom: var(--space-4); padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--color-divider);
}
.product-card__spec { display: flex; justify-content: space-between; align-items: center; }
.product-card__spec-label { font-size: var(--text-xs); color: var(--color-text-faint); }
.product-card__spec-value { font-size: var(--text-sm); font-weight: 500; color: var(--color-text); }
.product-card__link { font-size: var(--text-sm); font-weight: 600; color: var(--color-primary); }
.product-card__link:hover { color: var(--color-primary-hover); }

/* --- Proof --- */
.proof { background: var(--color-bg); }
.proof__grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: var(--space-8); margin-bottom: var(--space-16); }
.proof__chart-card {
  background: var(--color-surface); border: 1px solid var(--color-divider);
  border-radius: var(--radius-xl); padding: var(--space-8);
}
.proof__chart-title { font-size: var(--text-lg); font-weight: 600; margin-bottom: var(--space-6); color: var(--color-text); }
.proof__note { font-size: 0.6em; vertical-align: super; color: var(--color-accent); }
.proof__bars { display: flex; flex-direction: column; gap: var(--space-4); }
.proof__bar-row { display: flex; align-items: center; gap: var(--space-3); }
.proof__bar-label { font-size: var(--text-sm); font-weight: 500; min-width: 60px; color: var(--color-text); }
.proof__bar-track {
  flex: 1; height: 36px; background: var(--color-surface-2);
  border-radius: var(--radius-md); overflow: hidden; position: relative;
  display: flex; align-items: center;
}
.proof__bar {
  height: 100%; border-radius: var(--radius-md);
  width: 0; transition: width 1.2s cubic-bezier(0.16, 1, 0.3, 1);
}
.proof__bar--1 { background: linear-gradient(90deg, var(--color-primary), var(--color-primary-light)); }
.proof__bar--2 { background: linear-gradient(90deg, var(--color-primary), var(--color-primary-light)); }
.proof__bar--3 { background: linear-gradient(90deg, var(--color-primary), var(--color-primary-light)); }
.proof__bar--4 { background: linear-gradient(90deg, var(--color-primary), var(--color-primary-light)); }
.proof__bar--5 { background: linear-gradient(90deg, var(--color-primary), var(--color-primary-light)); }
.proof__bar-value {
  position: absolute; right: var(--space-3);
  font-size: var(--text-sm); font-weight: 700; color: var(--color-text);
}
.proof__chart-note { font-size: var(--text-xs); color: var(--color-text-faint); margin-top: var(--space-4); }

.proof__cards { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-4); }
.proof__card {
  background: var(--color-surface); border: 1px solid var(--color-divider);
  border-radius: var(--radius-lg); padding: var(--space-6);
  display: flex; flex-direction: column; align-items: center; text-align: center;
  transition: transform var(--transition), box-shadow var(--transition);
}
.proof__card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.proof__card-icon {
  width: 48px; height: 48px; display: flex; align-items: center; justify-content: center;
  background: var(--color-accent-highlight); color: var(--color-accent);
  border-radius: var(--radius-md); margin-bottom: var(--space-3);
}
.proof__card-value { font-size: var(--text-xl); font-weight: 700; color: var(--color-primary); font-family: var(--font-display); }
.proof__card-label { font-size: var(--text-xs); color: var(--color-text-muted); margin-top: var(--space-1); }

/* Application Guide */
.app-guide {
  background: var(--color-surface); border: 1px solid var(--color-divider);
  border-radius: var(--radius-2xl); padding: var(--space-12);
}
.app-guide .section__head { margin-bottom: var(--space-8); }
.app-guide__timeline {
  display: flex; align-items: center; gap: var(--space-2);
}
.app-guide__phase {
  display: flex; flex-direction: column; align-items: center; gap: var(--space-2);
  text-align: center; flex-shrink: 0; min-width: 140px;
}
.app-guide__phase-dot {
  width: 16px; height: 16px; border-radius: var(--radius-full);
  background: var(--color-primary); border: 3px solid var(--color-bg);
  box-shadow: 0 0 0 2px var(--color-primary); position: relative; z-index: 1;
}
.app-guide__phase-label { font-size: var(--text-sm); font-weight: 600; color: var(--color-text); }
.app-guide__phase-product {
  font-size: var(--text-xs); color: var(--color-accent); font-weight: 500;
  font-family: var(--font-display);
}
.app-guide__line {
  flex: 1; height: 2px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  min-width: 20px; margin-bottom: var(--space-10);
}

/* --- R&D --- */
.rnd { background: var(--color-surface-2); }
.rnd__grid { display: grid; grid-template-columns: 1fr 1.3fr; gap: var(--space-12); align-items: start; }
.rnd__visual {
  min-height: 500px;
  background: linear-gradient(135deg, #1a2e1a 0%, #2d5a3e 40%, #1a4d2e 100%);
  background-size: cover; background-position: center;
  border-radius: var(--radius-2xl);
  position: sticky; top: 100px;
}
.rnd__content { padding-block: var(--space-4); }
.rnd__process { display: flex; flex-direction: column; gap: 0; margin-block: var(--space-8); }
.rnd__process-item {
  display: flex; align-items: flex-start; gap: var(--space-4);
  padding: var(--space-4); border-left: 2px solid var(--color-divider);
  position: relative; transition: border-color var(--transition);
}
.rnd__process-item:hover { border-left-color: var(--color-primary); }
.rnd__process-item:not(:last-child) { padding-bottom: var(--space-4); }
.rnd__process-item::before {
  content: ''; position: absolute; left: -6px; top: var(--space-5);
  width: 10px; height: 10px; border-radius: var(--radius-full);
  background: var(--color-surface); border: 2px solid var(--color-primary);
}
.rnd__process-num {
  font-size: var(--text-xs); font-weight: 700; color: var(--color-accent);
  font-family: var(--font-display); min-width: 24px;
}
.rnd__process-label {
  font-size: var(--text-sm); font-weight: 600; color: var(--color-text);
  display: block; margin-bottom: var(--space-1);
}
.rnd__process-desc { font-size: var(--text-xs); color: var(--color-text-muted); }

.rnd__certs { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-3); margin-top: var(--space-8); }
.rnd__cert {
  display: flex; align-items: center; gap: var(--space-2);
  padding: var(--space-3); background: var(--color-surface);
  border: 1px solid var(--color-divider); border-radius: var(--radius-md);
  font-size: var(--text-sm); color: var(--color-text); font-weight: 500;
}
.rnd__cert svg { color: var(--color-success); flex-shrink: 0; }

/* --- B2B --- */
.b2b { background: var(--color-bg); }
.b2b__grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-5); }
.b2b__card {
  background: var(--color-surface); border: 1px solid var(--color-divider);
  border-radius: var(--radius-xl); padding: var(--space-8);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.b2b__card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--color-accent); }
.b2b__icon {
  width: 56px; height: 56px; display: flex; align-items: center; justify-content: center;
  background: var(--color-accent-highlight); color: var(--color-accent);
  border-radius: var(--radius-lg); margin-bottom: var(--space-4);
}
.b2b__title { font-size: var(--text-base); font-weight: 600; margin-bottom: var(--space-2); color: var(--color-text); }
.b2b__desc { font-size: var(--text-sm); color: var(--color-text-muted); line-height: 1.6; }

/* --- Contact --- */
.contact { background: var(--color-surface-2); }
.contact__grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: var(--space-12); }
.contact__channels { display: flex; flex-direction: column; gap: var(--space-4); margin-block: var(--space-6); }
.contact__channel { display: flex; align-items: flex-start; gap: var(--space-3); }
.contact__channel-icon {
  width: 44px; height: 44px; display: flex; align-items: center; justify-content: center;
  background: var(--color-primary-highlight); color: var(--color-primary);
  border-radius: var(--radius-md); flex-shrink: 0;
}
.contact__channel-label { display: block; font-size: var(--text-xs); color: var(--color-text-faint); margin-bottom: 2px; }
.contact__channel-value { display: block; font-size: var(--text-sm); color: var(--color-text); font-weight: 500; }
.contact__map { border-radius: var(--radius-xl); overflow: hidden; border: 1px solid var(--color-divider); height: 100%; min-height: 480px; box-shadow: var(--shadow-md, 0 4px 16px rgba(0,0,0,0.08)); }
.contact__map img { width: 100%; height: 100%; object-fit: cover; display: block; }

/* Contact form */
.contact__form {
  background: var(--color-surface); border: 1px solid var(--color-divider);
  border-radius: var(--radius-xl); padding: var(--space-8);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-4); }
.form-group { margin-bottom: var(--space-4); }
.form-label {
  display: block; font-size: var(--text-sm); font-weight: 600;
  margin-bottom: var(--space-2); color: var(--color-text);
}
.form-required { color: var(--color-accent); }
.form-input {
  width: 100%; padding: var(--space-3) var(--space-4);
  background: var(--color-surface-2); border: 1px solid var(--color-border);
  border-radius: var(--radius-md); font-size: var(--text-sm);
  color: var(--color-text); transition: border-color var(--transition), background var(--transition);
}
.form-input:focus { outline: none; border-color: var(--color-primary); background: var(--color-surface); }
.form-input::placeholder { color: var(--color-text-faint); }
.form-textarea { resize: vertical; min-height: 120px; }
.form-note { font-size: var(--text-xs); color: var(--color-text-faint); margin-top: var(--space-3); text-align: center; }

/* --- Form Status Messages --- */
.form-status { display: none; padding: var(--space-3) var(--space-4); border-radius: var(--radius-md); font-size: var(--text-sm); margin-bottom: var(--space-3); }
.form-status--info { display: block; background: rgba(13, 148, 136, 0.1); border: 1px solid rgba(13, 148, 136, 0.3); color: var(--color-accent); }
.form-status--success { display: block; background: rgba(22, 163, 74, 0.1); border: 1px solid rgba(22, 163, 74, 0.3); color: #16a34a; }
.form-status--warning { display: block; background: rgba(245, 158, 11, 0.1); border: 1px solid rgba(245, 158, 11, 0.3); color: #d97706; }
.form-status--error { display: block; background: rgba(239, 68, 68, 0.1); border: 1px solid rgba(239, 68, 68, 0.3); color: #dc2626; }

/* --- Footer --- */
.footer { background: #0a0f0c; color: #808a7c; }
.footer__top { display: grid; grid-template-columns: 2fr 1fr 1fr 1.5fr; gap: var(--space-8); padding-block: var(--space-16); }
.footer__col--brand .logo { color: #5fb87f; margin-bottom: var(--space-4); }
.footer__col--brand .logo__mark { color: #5fb87f; }
.footer__col--brand .logo__img { background: #fff; padding: 2px 6px; border-radius: var(--radius-sm); }
.footer__desc { font-size: var(--text-sm); line-height: 1.7; margin-bottom: var(--space-5); max-width: 320px; }
.footer__heading { font-size: var(--text-sm); font-weight: 600; color: #d2d8cc; margin-bottom: var(--space-4); font-family: var(--font-display); }
.footer__links { display: flex; flex-direction: column; gap: var(--space-2); }
.footer__links a, .footer__links li { font-size: var(--text-sm); color: #808a7c; transition: color var(--transition); }
.footer__links a:hover { color: #5fb87f; }
.footer__social { display: flex; gap: var(--space-2); }
.footer__social-link {
  width: 38px; height: 38px; display: flex; align-items: center; justify-content: center;
  background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-full); color: #808a7c; transition: all var(--transition);
}
.footer__social-link:hover { background: var(--color-primary); border-color: var(--color-primary); color: #fff; }
.footer__bottom { border-top: 1px solid rgba(255,255,255,0.06); padding-block: var(--space-5); }
.footer__bottom-inner { display: flex; align-items: center; justify-content: space-between; gap: var(--space-4); flex-wrap: wrap; }
.footer__copyright { font-size: var(--text-xs); }
.footer__legal { display: flex; gap: var(--space-4); }
.footer__legal a { font-size: var(--text-xs); color: #808a7c; }
.footer__legal a:hover { color: #5fb87f; }

/* --- Back to Top --- */
.back-to-top {
  position: fixed; bottom: var(--space-6); right: var(--space-6);
  width: 48px; height: 48px; display: flex; align-items: center; justify-content: center;
  background: var(--color-primary); color: var(--color-text-inverse);
  border-radius: var(--radius-full); box-shadow: var(--shadow-lg);
  opacity: 0; visibility: hidden; transform: translateY(20px);
  transition: all var(--transition); z-index: 50;
}
.back-to-top--visible { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top:hover { background: var(--color-primary-hover); transform: translateY(-2px); }

/* --- Scroll Reveal --- */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal--visible { opacity: 1; transform: translateY(0); }

/* --- Responsive --- */
@media (max-width: 1024px) {
  .tech__grid { grid-template-columns: 1fr 1fr; }
  .tech__card--featured { grid-column: 1 / -1; }
  .tech__diagram-content { grid-template-columns: 1fr; }
  .tech__diagram-img { min-height: 240px; }
  .products__grid { grid-template-columns: 1fr 1fr; }
  .proof__grid { grid-template-columns: 1fr; }
  .b2b__grid { grid-template-columns: 1fr 1fr; }
  .rnd__grid { grid-template-columns: 1fr; }
  .rnd__visual { min-height: 300px; position: relative; top: 0; }
  .footer__top { grid-template-columns: 1fr 1fr; }
  .footer__col--brand { grid-column: 1 / -1; }
}

@media (max-width: 768px) {
  .container { padding-inline: var(--space-4); }

  .nav {
    position: fixed; top: 0; right: -100%;
    width: 82%; max-width: 340px; height: 100dvh;
    background: var(--color-surface); box-shadow: var(--shadow-xl);
    flex-direction: column; align-items: flex-start; justify-content: flex-start;
    padding: var(--space-16) var(--space-6);
    transition: right 0.3s cubic-bezier(0.16, 1, 0.3, 1); z-index: 200;
  }
  .nav--open { right: 0; }
  .nav__list { flex-direction: column; align-items: flex-start; width: 100%; gap: var(--space-1); }
  .nav__link { width: 100%; }
  .nav__close { display: flex; position: absolute; top: var(--space-4); right: var(--space-4); color: var(--color-text); }
  .nav__toggle { display: flex; }
  .header__actions .btn--sm { display: none; }

  /* Mobile dropdown: card-style, colorful, eye-catching */
  .nav__dropdown {
    position: static; opacity: 1; visibility: visible; transform: none;
    box-shadow: none; border: none;
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    margin: var(--space-2) 0 var(--space-3);
    padding: var(--space-2);
    min-width: 100%;
    display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-2);
  }
  .nav__dropdown::before { display: none; }
  .nav__dropdown-header {
    display: block; grid-column: 1 / -1;
    text-align: center; font-size: 11px; font-weight: 700;
    text-transform: uppercase; letter-spacing: 0.08em;
    color: var(--color-text-faint);
    padding: var(--space-1) 0;
  }
  .nav__dropdown-link {
    flex-direction: column; align-items: center; text-align: center;
    gap: var(--space-1); padding: var(--space-3) var(--space-2);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-divider);
    background: var(--color-bg);
    color: var(--color-text);
    transition: background 0.2s ease, border-color 0.2s ease;
  }
  .nav__dropdown-link:hover { transform: none; border-color: var(--dropdown-accent, var(--color-accent)); }
  .nav__dropdown-link::before { display: none; }
  .nav__dropdown-text { align-items: center; gap: 1px; }
  .nav__dropdown-icon { width: 40px; height: 40px; font-size: 22px; }
  .nav__dropdown-name { font-size: var(--text-sm); }
  .nav__dropdown-desc { font-size: 10px; text-align: center; line-height: 1.3; }

  .hero { min-height: 80vh; }
  .hero__inner { padding-block: var(--space-12); }
  .hero__scroll { display: none; }

  .trust__grid { gap: var(--space-6); }
  .trust__divider { display: none; }
  .trust__item { min-width: 45%; }

  .tech__grid { grid-template-columns: 1fr; }
  .tech__card--featured { grid-column: auto; }

  .products__grid { grid-template-columns: 1fr; }

  .proof__cards { grid-template-columns: 1fr 1fr; }

  .app-guide__timeline { flex-direction: column; gap: var(--space-4); }
  .app-guide__line { width: 2px; height: 20px; background: linear-gradient(180deg, var(--color-primary), var(--color-accent)); margin-bottom: 0; }

  .b2b__grid { grid-template-columns: 1fr; }

  .contact__grid { grid-template-columns: 1fr; }
  .contact__map { min-height: 320px; }
  .form-row { grid-template-columns: 1fr; }

  .footer__top { grid-template-columns: 1fr; }
  .footer__bottom-inner { flex-direction: column; text-align: center; }

  .back-to-top { bottom: var(--space-4); right: var(--space-4); width: 40px; height: 40px; }
}

.nav-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,0.5); z-index: 150;
  opacity: 0; visibility: hidden; transition: opacity 0.3s ease, visibility 0.3s ease;
}
.nav-overlay--visible { opacity: 1; visibility: visible; }

/* ========================================
   Product Detail Pages
   ======================================== */

/* Breadcrumb */
.breadcrumb {
  background: var(--color-surface-2);
  border-bottom: 1px solid var(--color-divider);
  padding-block: var(--space-3);
}
.breadcrumb__inner {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
}
.breadcrumb__link { color: var(--color-text-muted); }
.breadcrumb__link:hover { color: var(--color-primary); }
.breadcrumb__sep { color: var(--color-text-faint); }
.breadcrumb__current { color: var(--color-text); font-weight: 600; }

/* Product Hero */
.product-hero {
  padding-block: var(--space-12);
  background: var(--color-bg);
}
.product-hero__grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: var(--space-12);
  align-items: center;
}
.product-hero__visual { position: relative; }
.product-hero__img {
  aspect-ratio: 4/3;
  border-radius: var(--radius-2xl);
  overflow: hidden;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
}
.product-hero__img--yeoprok { background: linear-gradient(135deg, #1a3a2a 0%, #2d6a3e 50%, #4a8f5a 100%); }
.product-hero__img--hwangje { background: linear-gradient(135deg, #2a1a3a 0%, #5a3a7a 50%, #8f6ab8 100%); }
.product-hero__img--yangaeg { background: linear-gradient(135deg, #3a1414 0%, #7a2626 50%, #b84545 100%); }
.product-hero__img--yeomryu { background: linear-gradient(135deg, #3a2410 0%, #8a5a1f 50%, #d4953f 100%); }
.product-hero__bottle {
  position: relative; z-index: 1;
  height: 78%; width: auto; object-fit: contain;
  filter: drop-shadow(0 16px 28px rgba(0,0,0,0.3));
}
.product-hero__tag {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-accent);
  background: var(--color-accent-highlight);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-4);
  font-family: var(--font-display);
}
.product-hero__title {
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-2);
  letter-spacing: -0.02em;
}
.product-hero__subtitle {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  margin-bottom: var(--space-5);
  font-weight: 400;
}
.product-hero__desc {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: var(--space-6);
}
.product-hero__specs {
  display: flex;
  gap: var(--space-8);
  margin-bottom: var(--space-8);
  flex-wrap: wrap;
}
.product-hero__spec { display: flex; flex-direction: column; gap: var(--space-1); }
.product-hero__spec-label { font-size: var(--text-xs); color: var(--color-text-faint); }
.product-hero__spec-value { font-size: var(--text-sm); font-weight: 600; color: var(--color-text); }

/* Product Features */
.product-features { background: var(--color-surface-2); }
.product-features__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-5);
}
.product-features__card {
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  transition: transform var(--transition), box-shadow var(--transition);
}
.product-features__card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.product-features__icon {
  width: 56px; height: 56px;
  display: flex; align-items: center; justify-content: center;
  background: var(--color-primary-highlight); color: var(--color-primary);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-4);
}
.product-features__title { font-size: var(--text-base); font-weight: 600; margin-bottom: var(--space-2); color: var(--color-text); }
.product-features__desc { font-size: var(--text-sm); color: var(--color-text-muted); line-height: 1.6; }

/* Product Usage */
.product-usage { background: var(--color-bg); }
.product-usage__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}
.product-usage__step {
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  position: relative;
}
.product-usage__num {
  display: inline-flex; align-items: center; justify-content: center;
  width: 36px; height: 36px;
  background: var(--color-primary); color: var(--color-text-inverse);
  border-radius: var(--radius-full);
  font-size: var(--text-sm); font-weight: 700;
  font-family: var(--font-display);
  margin-bottom: var(--space-4);
}
.product-usage__title { font-size: var(--text-base); font-weight: 600; margin-bottom: var(--space-2); color: var(--color-text); }
.product-usage__desc { font-size: var(--text-sm); color: var(--color-text-muted); line-height: 1.6; }

/* Product Specs */
.product-specs { background: var(--color-surface-2); }
.product-specs__table {
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-xl);
  overflow: hidden;
}
.product-specs__row {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: var(--space-4);
  padding: var(--space-4) var(--space-6);
  border-bottom: 1px solid var(--color-divider);
}
.product-specs__row:last-child { border-bottom: none; }
.product-specs__label { font-size: var(--text-sm); font-weight: 600; color: var(--color-text-muted); }
.product-specs__value { font-size: var(--text-sm); color: var(--color-text); }

/* Other Products */
.product-others { background: var(--color-bg); }
.product-others__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
}
.product-others__card {
  display: flex; flex-direction: column;
  gap: var(--space-2);
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.product-others__card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--color-primary); }
.product-others__name { font-size: var(--text-lg); font-weight: 700; color: var(--color-text); font-family: var(--font-display); }
.product-others__desc { font-size: var(--text-sm); color: var(--color-text-muted); }

/* Product page responsive */
@media (max-width: 1024px) {
  .product-features__grid { grid-template-columns: repeat(2, 1fr); }
  .product-others__grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 768px) {
  .product-hero__grid { grid-template-columns: 1fr; }
  .product-features__grid { grid-template-columns: 1fr; }
  .product-usage__grid { grid-template-columns: 1fr; }
  .product-specs__row { grid-template-columns: 1fr; gap: var(--space-1); }
  .product-others__grid { grid-template-columns: 1fr; }
  .product-hero__specs { gap: var(--space-4); }
}

/* ========================================
   Technology Page Enhanced
   ======================================== */

/* Tech comparison table */
.tech-compare { background: var(--color-surface-2); }
.tech-compare__table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-xl);
  overflow: hidden;
}
.tech-compare__table th,
.tech-compare__table td {
  padding: var(--space-4) var(--space-5);
  text-align: left;
  font-size: var(--text-sm);
  border-bottom: 1px solid var(--color-divider);
}
.tech-compare__table th {
  background: var(--color-primary-highlight);
  color: var(--color-primary);
  font-weight: 700;
  font-family: var(--font-display);
}
.tech-compare__table th:first-child { width: 25%; }
.tech-compare__table th:nth-child(2) { color: var(--color-text-muted); }
.tech-compare__table th:nth-child(3) { color: var(--color-primary); }
.tech-compare__table td:first-child { font-weight: 600; color: var(--color-text); }
.tech-compare__table td:nth-child(2) { color: var(--color-text-muted); }
.tech-compare__table td:nth-child(3) { color: var(--color-text); font-weight: 500; }
.tech-compare__table tr:last-child td { border-bottom: none; }
.tech-compare__table tr:hover td { background: var(--color-surface-2); }

/* Tech detail section */
.tech-detail { background: var(--color-bg); }
.tech-detail__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-6);
}
.tech-detail__card {
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
}
.tech-detail__card h4 {
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-3);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.tech-detail__card h4 svg { color: var(--color-primary); flex-shrink: 0; }
.tech-detail__card p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: var(--space-3);
}
.tech-detail__list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.tech-detail__list li {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  padding: var(--space-1) 0;
  padding-left: var(--space-4);
  position: relative;
  line-height: 1.6;
}
.tech-detail__list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-primary);
  opacity: 0.6;
}

/* Tech stats */
.tech-stats { background: var(--color-surface-2); }
.tech-stats__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-5);
}
.tech-stats__card {
  text-align: center;
  padding: var(--space-6);
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-lg);
}
.tech-stats__value {
  font-size: var(--text-3xl);
  font-weight: 800;
  color: var(--color-primary);
  font-family: var(--font-display);
  line-height: 1;
  margin-bottom: var(--space-2);
}
.tech-stats__label {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  font-weight: 500;
}

/* Tech materials */
.tech-materials { background: var(--color-bg); }
.tech-materials__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
}
.tech-materials__card {
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  transition: transform var(--transition), box-shadow var(--transition);
}
.tech-materials__card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.tech-materials__icon {
  width: 48px; height: 48px;
  display: flex; align-items: center; justify-content: center;
  background: var(--color-primary-highlight);
  color: var(--color-primary);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-4);
}
.tech-materials__name { font-size: var(--text-base); font-weight: 700; color: var(--color-text); margin-bottom: var(--space-1); }
.tech-materials__type { font-size: var(--text-xs); color: var(--color-accent); margin-bottom: var(--space-3); font-family: var(--font-display); }
.tech-materials__desc { font-size: var(--text-sm); color: var(--color-text-muted); line-height: 1.6; margin-bottom: var(--space-3); }
.tech-materials__specs {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  padding-top: var(--space-3);
  border-top: 1px solid var(--color-divider);
}
.tech-materials__spec {
  display: flex;
  justify-content: space-between;
  font-size: var(--text-xs);
}
.tech-materials__spec-label { color: var(--color-text-faint); }
.tech-materials__spec-value { color: var(--color-text); font-weight: 600; }

/* Tech research */
.tech-research { background: var(--color-surface-2); }
.tech-research__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-5);
}
.tech-research__card {
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
}
.tech-research__year {
  font-size: var(--text-xs);
  color: var(--color-accent);
  font-weight: 700;
  font-family: var(--font-display);
  margin-bottom: var(--space-2);
}
.tech-research__title { font-size: var(--text-base); font-weight: 700; color: var(--color-text); margin-bottom: var(--space-2); }
.tech-research__desc { font-size: var(--text-sm); color: var(--color-text-muted); line-height: 1.6; }
.tech-research__tag {
  display: inline-block;
  font-size: var(--text-xs);
  color: var(--color-primary);
  background: var(--color-primary-highlight);
  padding: 2px var(--space-2);
  border-radius: var(--radius-sm);
  margin-top: var(--space-3);
}

/* Mechanism detail steps */
.tech-step-detail {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
  margin-top: var(--space-8);
}
.tech-step-detail__card {
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  position: relative;
}
.tech-step-detail__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px; height: 40px;
  background: var(--color-primary);
  color: var(--color-text-inverse);
  border-radius: var(--radius-full);
  font-size: var(--text-base);
  font-weight: 700;
  font-family: var(--font-display);
  margin-bottom: var(--space-4);
}
.tech-step-detail__title { font-size: var(--text-base); font-weight: 700; color: var(--color-text); margin-bottom: var(--space-2); }
.tech-step-detail__desc { font-size: var(--text-sm); color: var(--color-text-muted); line-height: 1.7; margin-bottom: var(--space-3); }
.tech-step-detail__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  padding-top: var(--space-3);
  border-top: 1px solid var(--color-divider);
}
.tech-step-detail__meta-item {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}
.tech-step-detail__meta-item strong { color: var(--color-text); }

/* Tech page responsive */
@media (max-width: 1024px) {
  .tech-stats__grid { grid-template-columns: repeat(2, 1fr); }
  .tech-materials__grid { grid-template-columns: repeat(2, 1fr); }
  .tech-research__grid { grid-template-columns: 1fr; }
  .tech-detail__grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .tech-compare__table { font-size: var(--text-xs); }
  .tech-compare__table th, .tech-compare__table td { padding: var(--space-3); }
  .tech-stats__grid { grid-template-columns: 1fr 1fr; }
  .tech-materials__grid { grid-template-columns: 1fr; }
  .tech-step-detail { grid-template-columns: 1fr; }
}

/* ========================================
   Enhanced Homepage Sections
   ======================================== */

/* Proof Detail Table */
.proof-detail {
  position: relative;
  margin-top: var(--space-8);
  overflow-x: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
}
.proof-detail__scroll-hint {
  display: none;
  text-align: right;
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-top: var(--space-2);
}
@media (max-width: 768px) {
  .proof-detail__scroll-hint {
    display: block;
  }
}
.proof-detail__table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--text-sm);
  min-width: 640px;
}
.proof-detail__table th {
  background: var(--color-surface-2);
  padding: var(--space-4);
  text-align: left;
  font-weight: 600;
  color: var(--color-text);
  border-bottom: 2px solid var(--color-primary);
  white-space: nowrap;
}
.proof-detail__table td {
  padding: var(--space-4);
  border-bottom: 1px solid var(--color-divider);
  color: var(--color-text-muted);
}
.proof-detail__table tr:last-child td { border-bottom: none; }
.proof-detail__table .proof-detail__crop {
  font-weight: 600;
  color: var(--color-text);
}
.proof-detail__table .proof-detail__up { color: var(--color-primary); font-weight: 600; }
.proof-detail__table .proof-detail__down { color: var(--color-accent); font-weight: 600; }

/* Farmer Testimonials */
.proof-testimonials {
  margin-top: var(--space-8);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
}
.proof-testimonial {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.proof-testimonial__quote {
  font-size: var(--text-sm);
  line-height: 1.7;
  color: var(--color-text-muted);
  flex: 1;
}
.proof-testimonial__quote::before {
  content: '"';
  font-size: 2.5rem;
  line-height: 0;
  color: var(--color-primary);
  opacity: 0.3;
  vertical-align: -0.5rem;
  margin-right: 0.25rem;
}
.proof-testimonial__author {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding-top: var(--space-3);
  border-top: 1px solid var(--color-divider);
}
.proof-testimonial__avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--color-primary-highlight);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  color: var(--color-primary);
  font-size: var(--text-sm);
  flex-shrink: 0;
}
.proof-testimonial__name {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
}
.proof-testimonial__meta {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

/* R&D Enhanced */
.rnd-equipment {
  margin-top: var(--space-6);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
}
.rnd-equipment__item {
  background: var(--color-surface-2);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  text-align: center;
}
.rnd-equipment__icon {
  width: 36px;
  height: 36px;
  margin: 0 auto var(--space-2);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
}
.rnd-equipment__name {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
}
.rnd-equipment__desc {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  margin-top: 2px;
}

/* B2B Enhanced */
.b2b__card--expanded .b2b__features {
  list-style: none;
  padding: 0;
  margin: var(--space-4) 0 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.b2b__card--expanded .b2b__features li {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  padding-left: 1.25rem;
  position: relative;
}
.b2b__card--expanded .b2b__features li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.5em;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--color-accent);
}
.b2b__card--expanded .b2b__cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-primary);
  text-decoration: none;
  margin-top: auto;
  padding-top: var(--space-3);
  border-top: 1px solid var(--color-divider);
}
.b2b__card--expanded .b2b__cta:hover { color: var(--color-accent); }
.b2b__card--expanded {
  display: flex;
  flex-direction: column;
}

/* Company Info / About Section */
.about {
  padding: var(--space-8) 0;
  background: var(--color-surface);
}
.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-8);
  align-items: center;
}
.about__content h2 { margin-bottom: var(--space-4); }
.about__stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
  margin-top: var(--space-5);
}
.about__stat {
  padding: var(--space-4);
  background: var(--color-surface-2);
  border-radius: var(--radius-md);
  border-left: 3px solid var(--color-primary);
}
.about__stat-num {
  font-family: 'Space Grotesk', sans-serif;
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1;
}
.about__stat-label {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-top: var(--space-1);
}
.about__visual {
  background: linear-gradient(135deg, var(--color-primary-highlight), var(--color-accent-highlight));
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}
.about__milestone {
  display: flex;
  gap: var(--space-3);
  align-items: flex-start;
}
.about__milestone-year {
  font-family: 'Space Grotesk', sans-serif;
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--color-primary);
  flex-shrink: 0;
  width: 60px;
}
.about__milestone-text {
  font-size: var(--text-sm);
  color: var(--color-text);
  line-height: 1.5;
}

/* Team Section */
.team {
  padding: var(--space-8) 0;
  background: var(--color-surface);
  border-top: 1px solid var(--color-divider);
}
.team__header { margin-bottom: var(--space-8); }
.team__grid {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}
.team__card {
  display: flex;
  gap: var(--space-6);
  align-items: flex-start;
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}
.team__card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.team__photo {
  flex-shrink: 0;
  width: 120px;
  height: 120px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-surface-offset);
  display: flex;
  align-items: center;
  justify-content: center;
}
.team__photo img { width: 100%; height: 100%; object-fit: cover; display: block; }
.team__photo--placeholder svg { width: 52px; height: 52px; color: var(--color-text-faint); }
.team__info { flex: 1; min-width: 0; }
.team__name {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text);
}
.team__position {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-primary);
  margin-top: var(--space-1);
  margin-bottom: var(--space-3);
}
.team__career {
  display: flex;
  flex-direction: column;
  gap: var(--space-1-5, 0.375rem);
  list-style: none;
  padding: 0;
  margin: 0;
}
.team__career li {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
  padding-left: var(--space-4);
  position: relative;
}
.team__career li::before {
  content: '';
  position: absolute;
  left: 2px;
  top: 0.65em;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--color-primary);
}

/* Field Proof Section (10-farm showcase) */
.field-proof {
  padding: var(--space-8) 0;
  background: var(--color-surface);
  border-top: 1px solid var(--color-divider);
}
.field-proof__header { margin-bottom: var(--space-8); }
.field-proof__grid {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}
.field-proof__card {
  display: flex;
  gap: var(--space-6);
  align-items: stretch;
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}
.field-proof__card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.field-proof__image {
  flex-shrink: 0;
  width: 260px;
  aspect-ratio: 4 / 3;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--color-surface-offset);
}
.field-proof__image img { width: 100%; height: 100%; object-fit: cover; display: block; }
.field-proof__body { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.field-proof__title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text);
}
.field-proof__meta {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-primary);
  margin-top: var(--space-1);
  margin-bottom: var(--space-3);
}
.field-proof__desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: var(--space-4);
}
.field-proof__stats {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: auto;
}
.field-proof__stat {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-text);
  background: var(--color-surface-offset);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  padding: var(--space-1) var(--space-3);
  white-space: nowrap;
}
.field-proof__note {
  margin-top: var(--space-6);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  text-align: center;
}

/* FAQ Section */
.faq {
  padding: var(--space-8) 0;
  background: var(--color-surface-2);
}
.faq__list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.faq__item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.faq__item summary {
  padding: var(--space-4) var(--space-5);
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-text);
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.faq__item summary::-webkit-details-marker { display: none; }
.faq__item summary::after {
  content: '+';
  font-size: var(--text-xl);
  color: var(--color-primary);
  transition: transform 0.2s;
}
.faq__item[open] summary::after { transform: rotate(45deg); }
.faq__answer {
  padding: 0 var(--space-5) var(--space-4);
  font-size: var(--text-sm);
  line-height: 1.7;
  color: var(--color-text-muted);
}

/* Responsive for enhanced sections */
@media (max-width: 1024px) {
  .proof-testimonials { grid-template-columns: 1fr; }
  .rnd-equipment { grid-template-columns: repeat(2, 1fr); }
  .about__grid { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .proof-detail__table { font-size: var(--text-xs); }
  .rnd-equipment { grid-template-columns: 1fr; }
  .about__stats { grid-template-columns: 1fr; }
  .team__card { flex-direction: column; align-items: center; text-align: center; }
  .team__career { text-align: left; }
  .field-proof__card { flex-direction: column; }
  .field-proof__image { width: 100%; }
  .field-proof__stats { justify-content: flex-start; }
}

/* ========================================
   Enhanced Product Detail Pages
   ======================================== */

/* Product Tech Connection */
.product-tech {
  padding: var(--space-8) 0;
  background: var(--color-surface-2);
}
.product-tech__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
}
.product-tech__card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.product-tech__icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: var(--color-primary-highlight);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
}
.product-tech__title {
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-text);
}
.product-tech__desc {
  font-size: var(--text-sm);
  line-height: 1.6;
  color: var(--color-text-muted);
}
.product-tech__link {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-primary);
  text-decoration: none;
  margin-top: auto;
}
.product-tech__link:hover { color: var(--color-accent); }

/* Product Effect Data */
.product-effect {
  padding: var(--space-8) 0;
  background: var(--color-surface);
}
.product-effect__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
}
.product-effect__item {
  text-align: center;
  padding: var(--space-5);
  background: var(--color-surface-2);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-divider);
}
.product-effect__num {
  font-family: 'Space Grotesk', sans-serif;
  font-size: var(--text-3xl);
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1;
}
.product-effect__label {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-top: var(--space-2);
}
.product-effect__note {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  margin-top: var(--space-3);
}

/* Product CTA */
.product-cta {
  padding: var(--space-8) 0;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-hover) 100%);
  text-align: center;
  color: var(--color-text-inverse);
}
.product-cta h2 { color: var(--color-text-inverse); margin-bottom: var(--space-3); }
.product-cta p { color: rgba(255,255,255,0.85); margin-bottom: var(--space-5); max-width: 600px; margin-left: auto; margin-right: auto; }
.product-cta .btn { background: var(--color-surface); color: var(--color-primary); border: none; }
.product-cta .btn:hover { background: var(--color-text-inverse); }

@media (max-width: 1024px) {
  .product-tech__grid { grid-template-columns: 1fr; }
  .product-effect__grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .product-effect__grid { grid-template-columns: 1fr; }
}