@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@300;400;500;600;700&family=Inter:wght@300;400;500;600&display=swap');

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

:root {
  --color-bg: #0F172A;
  --color-surface: #F8FAFC;
  --color-mid: #334155;
  --color-accent: #38BDF8;
  --color-border: rgba(248, 250, 252, 0.12);
  --color-border-light: rgba(51, 65, 85, 0.4);
  --color-text-muted: #94A3B8;
  --color-text-light: #CBD5E1;
  --font-heading: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
  --max-width: 1440px;
  --container: 1200px;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  background-color: var(--color-bg);
  color: var(--color-surface);
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.3s ease;
}

a:hover {
  color: var(--color-accent);
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.2rem, 5vw, 4rem); }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.8rem); }
h3 { font-size: clamp(1.1rem, 2vw, 1.5rem); }

p {
  font-family: var(--font-body);
  line-height: 1.75;
  color: var(--color-text-light);
}

ul, ol {
  padding-left: 1.5rem;
}

li {
  margin-bottom: 0.5rem;
  color: var(--color-text-light);
  line-height: 1.7;
}

/* ===================== LAYOUT ===================== */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 2rem;
}

.container-wide {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem;
}

.section {
  padding: 7rem 0;
}

.section-sm {
  padding: 4rem 0;
}

.divider {
  width: 100%;
  height: 1px;
  background: var(--color-border);
  margin: 0;
}

/* ===================== HEADER ===================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(15, 23, 42, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  transition: background 0.3s ease;
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem;
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.site-logo {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--color-surface);
  text-decoration: none;
}

.site-logo span {
  color: var(--color-accent);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
  padding: 0;
  margin: 0;
}

.nav-links a {
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 400;
  letter-spacing: 0.02em;
  color: var(--color-text-muted);
  text-transform: uppercase;
  text-decoration: none;
  transition: color 0.25s ease;
  padding: 0.25rem 0;
  border-bottom: 1px solid transparent;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--color-surface);
  border-bottom-color: var(--color-accent);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 1px;
  background: var(--color-surface);
  transition: all 0.3s ease;
}

/* ===================== FOOTER ===================== */
.site-footer {
  background: var(--color-bg);
  border-top: 1px solid var(--color-border);
  padding: 4rem 0 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 3rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid var(--color-border);
}

.footer-brand .site-logo {
  display: inline-block;
  margin-bottom: 1rem;
}

.footer-brand p {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  max-width: 280px;
}

.footer-col h4 {
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: 1.25rem;
}

.footer-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-col ul li {
  margin-bottom: 0.6rem;
}

.footer-col ul li a {
  font-size: 0.875rem;
  color: var(--color-text-light);
  transition: color 0.25s ease;
}

.footer-col ul li a:hover {
  color: var(--color-surface);
}

.footer-contact-item {
  display: flex;
  flex-direction: column;
  margin-bottom: 0.75rem;
}

.footer-contact-item span.label {
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: 0.2rem;
}

.footer-contact-item span.val {
  font-size: 0.875rem;
  color: var(--color-text-light);
}

.footer-hours {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-top: 0.5rem;
}

.footer-bottom {
  padding-top: 2rem;
  display: flex;
  align-items: flex-start;
  flex-direction: column;
  gap: 1rem;
}

.footer-disclaimer {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  max-width: 900px;
}

.footer-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.footer-copyright {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.footer-editorial-note {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--color-accent);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* ===================== HERO ===================== */
.hero {
  padding-top: 68px;
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.25;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg, rgba(15,23,42,0.97) 45%, rgba(15,23,42,0.5) 100%);
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 700px;
}

.hero-label {
  display: inline-block;
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-accent);
  font-family: var(--font-body);
  font-weight: 500;
  margin-bottom: 1.5rem;
  padding: 0.35rem 0.75rem;
  border: 1px solid rgba(56, 189, 248, 0.3);
}

.hero h1 {
  margin-bottom: 1.5rem;
  color: var(--color-surface);
}

.hero h1 em {
  font-style: normal;
  color: var(--color-accent);
}

.hero-lead {
  font-size: 1.05rem;
  color: var(--color-text-light);
  max-width: 540px;
  margin-bottom: 2.5rem;
  line-height: 1.75;
}

.btn {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.85rem 2rem;
  border: 1px solid var(--color-surface);
  color: var(--color-surface);
  background: transparent;
  cursor: pointer;
  transition: background 0.3s ease, color 0.3s ease, border-color 0.3s ease;
  text-decoration: none;
}

.btn:hover {
  background: var(--color-surface);
  color: var(--color-bg);
  border-color: var(--color-surface);
}

.btn-accent {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.btn-accent:hover {
  background: var(--color-accent);
  color: var(--color-bg);
}

.btn-group {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* ===================== SECTION HEADER ===================== */
.section-label {
  display: inline-block;
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-accent);
  font-family: var(--font-body);
  font-weight: 500;
  margin-bottom: 1rem;
}

.section-header {
  margin-bottom: 4rem;
}

.section-header h2 {
  margin-bottom: 1rem;
}

.section-header p {
  max-width: 540px;
  font-size: 1rem;
}

/* ===================== ASYMMETRIC GRID ===================== */
.asymmetric-grid {
  display: grid;
  grid-template-columns: 30% 70%;
  gap: 0;
  border-top: 1px solid var(--color-border);
}

.asym-left {
  padding: 3rem 2.5rem 3rem 0;
  border-right: 1px solid var(--color-border);
}

.asym-right {
  padding: 3rem 0 3rem 3rem;
}

/* ===================== TWO-COLUMN ===================== */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.two-col.reverse {
  direction: rtl;
}

.two-col.reverse > * {
  direction: ltr;
}

.two-col-img {
  position: relative;
  overflow: hidden;
}

.two-col-img img {
  width: 100%;
  height: 480px;
  object-fit: cover;
  display: block;
}

/* ===================== FORMULA BUILDER ===================== */
.formula-section {
  background: var(--color-bg);
  padding: 7rem 0;
}

.formula-workspace {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 3rem;
  align-items: start;
}

.formula-categories {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.formula-category {
  border: 1px solid var(--color-border);
  padding: 1.5rem;
}

.formula-category h3 {
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 1rem;
  font-family: var(--font-body);
  font-weight: 500;
}

.ingredient-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 0.75rem;
}

.ingredient-card {
  border: 1px solid var(--color-border);
  padding: 0.85rem 1rem;
  cursor: pointer;
  transition: border-color 0.25s ease, background 0.25s ease;
  background: transparent;
  text-align: left;
  width: 100%;
}

.ingredient-card:hover {
  border-color: rgba(56, 189, 248, 0.4);
  background: rgba(56, 189, 248, 0.04);
}

.ingredient-card.selected {
  border-color: var(--color-accent);
  background: rgba(56, 189, 248, 0.08);
}

.ingredient-card .ing-name {
  font-family: var(--font-body);
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--color-surface);
  display: block;
  margin-bottom: 0.2rem;
}

.ingredient-card .ing-role {
  font-size: 0.72rem;
  color: var(--color-text-muted);
}

/* Flask panel */
.flask-panel {
  position: sticky;
  top: 88px;
  border: 1px solid var(--color-border);
  padding: 2rem;
  background: rgba(51, 65, 85, 0.08);
}

.flask-title {
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: 1.5rem;
  font-family: var(--font-body);
}

.flask-visual {
  position: relative;
  width: 120px;
  margin: 0 auto 1.5rem;
}

.flask-svg {
  width: 100%;
  height: auto;
}

.flask-fill {
  transition: height 0.6s ease, y 0.6s ease;
}

.flask-ingredients-list {
  list-style: none;
  padding: 0;
  margin: 0 0 1.5rem;
  min-height: 80px;
}

.flask-ingredients-list li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.82rem;
  color: var(--color-text-light);
  margin-bottom: 0.4rem;
  padding: 0.35rem 0;
  border-bottom: 1px solid var(--color-border);
  animation: fadeInItem 0.3s ease;
}

.flask-ingredients-list li::before {
  content: '';
  display: block;
  width: 6px;
  height: 6px;
  background: var(--color-accent);
  flex-shrink: 0;
}

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

.flask-empty-msg {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  text-align: center;
  padding: 1.5rem 0;
  font-style: italic;
}

/* Stability meter */
.stability-block {
  border-top: 1px solid var(--color-border);
  padding-top: 1.25rem;
  margin-top: 0.5rem;
}

.stability-label {
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-bottom: 0.5rem;
}

.stability-label strong {
  color: var(--color-surface);
  font-family: var(--font-heading);
  font-size: 0.9rem;
}

.stability-bar-bg {
  width: 100%;
  height: 3px;
  background: var(--color-border);
  margin-bottom: 1rem;
}

.stability-bar-fill {
  height: 3px;
  background: var(--color-accent);
  transition: width 0.6s ease;
  width: 0%;
}

.stability-note {
  font-size: 0.78rem;
  color: var(--color-text-muted);
  line-height: 1.5;
  min-height: 2.5rem;
}

/* ===================== BALANCE CHART ===================== */
.balance-section {
  background: #0a1120;
  padding: 7rem 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.balance-chart-wrap {
  display: none;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: 2rem;
}

.balance-chart-wrap.visible {
  display: flex;
}

.balance-row {
  display: grid;
  grid-template-columns: 130px 1fr 50px;
  align-items: center;
  gap: 1rem;
}

.balance-row-label {
  font-size: 0.78rem;
  color: var(--color-text-light);
  text-align: right;
  font-family: var(--font-body);
}

.balance-bar-bg {
  height: 6px;
  background: var(--color-border);
  position: relative;
}

.balance-bar-fill {
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  background: var(--color-accent);
  transition: width 0.8s ease;
  width: 0%;
}

.balance-pct {
  font-size: 0.78rem;
  color: var(--color-text-muted);
  text-align: right;
}

.balance-placeholder {
  border: 1px dashed var(--color-border);
  padding: 2.5rem;
  text-align: center;
  color: var(--color-text-muted);
  font-size: 0.85rem;
}

/* ===================== PHOTO GRID ===================== */
.photo-row {
  display: grid;
  gap: 0;
}

.photo-row-3 {
  grid-template-columns: 1fr 1fr 1fr;
}

.photo-row-2 {
  grid-template-columns: 3fr 2fr;
}

.photo-row-2r {
  grid-template-columns: 2fr 3fr;
}

.photo-cell {
  overflow: hidden;
  position: relative;
}

.photo-cell img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.6s ease;
}

.photo-cell:hover img {
  transform: scale(1.02);
}

.photo-cell-h400 { height: 400px; }
.photo-cell-h500 { height: 500px; }
.photo-cell-h300 { height: 300px; }
.photo-cell-h350 { height: 350px; }

/* ===================== STAT STRIP ===================== */
.stat-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.stat-item {
  padding: 2.5rem 2rem;
  border-right: 1px solid var(--color-border);
  text-align: center;
}

.stat-item:last-child {
  border-right: none;
}

.stat-number {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-surface);
  display: block;
  margin-bottom: 0.4rem;
  letter-spacing: -0.04em;
}

.stat-unit {
  font-size: 1rem;
  color: var(--color-accent);
}

.stat-desc {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

/* ===================== INGREDIENT INFO BLOCKS ===================== */
.info-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border: 1px solid var(--color-border);
}

.info-cell {
  padding: 2.5rem 2rem;
  border-right: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.info-cell:nth-child(3n) {
  border-right: none;
}

.info-cell h3 {
  font-size: 1rem;
  margin-bottom: 0.75rem;
  color: var(--color-surface);
}

.info-cell p {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  line-height: 1.65;
}

/* ===================== POPULAR FORMULAS ===================== */
.formula-gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border: 1px solid var(--color-border);
}

.formula-card {
  padding: 2rem;
  border-right: 1px solid var(--color-border);
  cursor: pointer;
  transition: background 0.25s ease;
}

.formula-card:last-child {
  border-right: none;
}

.formula-card:hover {
  background: rgba(56, 189, 248, 0.04);
}

.formula-card-label {
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 0.75rem;
  font-family: var(--font-body);
}

.formula-card h3 {
  font-size: 1rem;
  margin-bottom: 0.75rem;
}

.formula-card ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.formula-card ul li {
  font-size: 0.78rem;
  color: var(--color-text-muted);
  padding: 0.25rem 0;
  border-bottom: 1px solid var(--color-border);
}

.formula-card ul li:last-child {
  border-bottom: none;
}

.formula-card-btn {
  display: inline-block;
  margin-top: 1.25rem;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 2px;
  transition: color 0.25s ease, border-color 0.25s ease;
}

.formula-card:hover .formula-card-btn {
  color: var(--color-accent);
  border-color: var(--color-accent);
}

/* ===================== FAQ ACCORDION ===================== */
.faq-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 0;
  border-top: 1px solid var(--color-border);
}

.faq-rail {
  padding: 3rem 2rem 3rem 0;
  border-right: 1px solid var(--color-border);
  position: sticky;
  top: 88px;
  align-self: start;
}

.faq-rail-title {
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: 1.5rem;
  font-family: var(--font-body);
}

.faq-rail-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.faq-rail-list li {
  margin-bottom: 0;
  border-bottom: 1px solid var(--color-border);
}

.faq-rail-list a {
  display: block;
  padding: 0.75rem 0;
  font-size: 0.82rem;
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color 0.25s ease;
  line-height: 1.4;
}

.faq-rail-list a:hover,
.faq-rail-list a.active {
  color: var(--color-surface);
}

.faq-main {
  padding: 3rem 0 3rem 3rem;
}

.accordion-item {
  border-bottom: 1px solid var(--color-border);
}

.accordion-trigger {
  width: 100%;
  background: none;
  border: none;
  padding: 1.75rem 0;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1.5rem;
  cursor: pointer;
  text-align: left;
}

.accordion-trigger h3 {
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-surface);
  font-family: var(--font-body);
  line-height: 1.45;
  transition: color 0.25s ease;
}

.accordion-trigger:hover h3 {
  color: var(--color-accent);
}

.accordion-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  position: relative;
  margin-top: 2px;
}

.accordion-icon::before,
.accordion-icon::after {
  content: '';
  position: absolute;
  background: var(--color-text-muted);
  transition: all 0.3s ease;
}

.accordion-icon::before {
  width: 12px;
  height: 1px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.accordion-icon::after {
  width: 1px;
  height: 12px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.accordion-item.open .accordion-icon::after {
  opacity: 0;
  transform: translate(-50%, -50%) rotate(90deg);
}

.accordion-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}

.accordion-body-inner {
  padding-bottom: 1.75rem;
}

.accordion-body-inner p {
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--color-text-light);
  margin-bottom: 0.75rem;
}

.accordion-body-inner p:last-child {
  margin-bottom: 0;
}

.accordion-body-inner ul {
  margin: 0.75rem 0;
}

.accordion-body-inner ul li {
  font-size: 0.88rem;
  color: var(--color-text-light);
}

/* ===================== ABOUT PAGE ===================== */
.about-hero {
  padding-top: 68px;
  background: var(--color-bg);
  min-height: 65vh;
  display: flex;
  align-items: flex-end;
  position: relative;
  overflow: hidden;
}

.about-hero-content {
  position: relative;
  z-index: 2;
  padding-bottom: 5rem;
  padding-top: 4rem;
}

.insight-matrix {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border: 1px solid var(--color-border);
  margin-top: 4rem;
}

.matrix-cell {
  padding: 2.5rem 2rem;
  border-right: 1px solid var(--color-border);
}

.matrix-cell:last-child {
  border-right: none;
}

.matrix-num {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-accent);
  display: block;
  margin-bottom: 0.75rem;
  letter-spacing: -0.04em;
}

.matrix-cell h3 {
  font-size: 1rem;
  margin-bottom: 0.75rem;
  color: var(--color-surface);
}

.matrix-cell p {
  font-size: 0.84rem;
  color: var(--color-text-muted);
  line-height: 1.65;
}

/* ===================== CONTACT PAGE ===================== */
.contact-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: calc(100vh - 68px);
  padding-top: 68px;
}

.contact-info-panel {
  background: var(--color-mid);
  padding: 6rem 4rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.contact-form-panel {
  background: var(--color-bg);
  padding: 6rem 4rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.contact-info-panel h1 {
  font-size: clamp(2rem, 4vw, 3.5rem);
  margin-bottom: 1rem;
}

.contact-lead {
  font-size: 0.95rem;
  color: var(--color-text-light);
  max-width: 360px;
  line-height: 1.7;
  margin-bottom: 3rem;
}

.correspondence-grid {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.correspondence-item {
  border-top: 1px solid rgba(248, 250, 252, 0.15);
  padding-top: 1.25rem;
}

.correspondence-item .label {
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(248, 250, 252, 0.4);
  display: block;
  margin-bottom: 0.35rem;
  font-family: var(--font-body);
}

.correspondence-item .value {
  font-size: 0.95rem;
  color: var(--color-surface);
  font-family: var(--font-body);
}

.contact-photo-box {
  margin-top: 3rem;
  overflow: hidden;
}

.contact-photo-box img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  display: block;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: 0.6rem;
  font-family: var(--font-body);
}

.form-input,
.form-textarea {
  width: 100%;
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-surface);
  font-family: var(--font-body);
  font-size: 0.9rem;
  padding: 0.85rem 1rem;
  outline: none;
  transition: border-color 0.25s ease;
  -webkit-appearance: none;
}

.form-input:focus,
.form-textarea:focus {
  border-color: var(--color-accent);
}

.form-textarea {
  resize: vertical;
  min-height: 140px;
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--color-text-muted);
  opacity: 0.6;
}

/* ===================== POLICY PAGES ===================== */
.policy-page {
  padding-top: 68px;
}

.policy-hero {
  background: var(--color-bg);
  padding: 5rem 0 4rem;
  border-bottom: 1px solid var(--color-border);
}

.policy-hero h1 {
  margin-bottom: 0.75rem;
}

.policy-updated {
  font-size: 0.78rem;
  color: var(--color-text-muted);
  font-family: var(--font-body);
}

.policy-content {
  padding: 5rem 0;
  max-width: 780px;
}

.policy-content h2 {
  font-size: 1.25rem;
  margin-top: 3rem;
  margin-bottom: 1rem;
  color: var(--color-surface);
  padding-top: 2rem;
  border-top: 1px solid var(--color-border);
}

.policy-content h2:first-child {
  margin-top: 0;
  padding-top: 0;
  border-top: none;
}

.policy-content p {
  font-size: 0.92rem;
  color: var(--color-text-light);
  margin-bottom: 1rem;
  line-height: 1.8;
}

.policy-content ul,
.policy-content ol {
  margin: 1rem 0 1.25rem;
}

.policy-content li {
  font-size: 0.9rem;
  color: var(--color-text-light);
  line-height: 1.75;
  margin-bottom: 0.5rem;
}

.policy-content a {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ===================== 404 / THANK YOU ===================== */
.utility-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  text-align: center;
}

.utility-content {
  max-width: 480px;
}

.utility-code {
  font-family: var(--font-heading);
  font-size: 6rem;
  font-weight: 700;
  color: var(--color-border);
  line-height: 1;
  letter-spacing: -0.05em;
  display: block;
  margin-bottom: 1rem;
}

.utility-content h1 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.utility-content p {
  font-size: 0.9rem;
  margin-bottom: 2rem;
}

/* ===================== COOKIE BANNER ===================== */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  z-index: 9999;
  background: #1E293B;
  border-top: 1px solid var(--color-border);
  padding: 1.25rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
  transform: translateY(100%);
  transition: transform 0.4s ease;
}

.cookie-banner.visible {
  transform: translateY(0);
}

.cookie-text {
  font-size: 0.82rem;
  color: var(--color-text-light);
  line-height: 1.55;
  flex: 1;
  min-width: 240px;
}

.cookie-text a {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.cookie-actions {
  display: flex;
  gap: 0.75rem;
  flex-shrink: 0;
  flex-wrap: wrap;
}

.cookie-btn {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.6rem 1.25rem;
  border: 1px solid var(--color-border);
  background: transparent;
  color: var(--color-text-light);
  cursor: pointer;
  transition: all 0.25s ease;
}

.cookie-btn:hover {
  border-color: var(--color-surface);
  color: var(--color-surface);
}

.cookie-btn.accept {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.cookie-btn.accept:hover {
  background: var(--color-accent);
  color: var(--color-bg);
}

/* ===================== BREADCRUMB ===================== */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  list-style: none;
  padding: 0;
  margin: 0 0 2rem;
}

.breadcrumb li {
  font-size: 0.78rem;
  color: var(--color-text-muted);
  margin: 0;
}

.breadcrumb li + li::before {
  content: '/';
  margin-right: 0.5rem;
  opacity: 0.4;
}

.breadcrumb a {
  color: var(--color-text-muted);
  transition: color 0.25s;
}

.breadcrumb a:hover {
  color: var(--color-surface);
}

.breadcrumb li:last-child {
  color: var(--color-surface);
}

/* ===================== MOBILE NAV ===================== */
.mobile-nav {
  display: none;
  position: fixed;
  top: 68px;
  left: 0;
  width: 100%;
  background: #0F172A;
  border-top: 1px solid var(--color-border);
  z-index: 999;
  padding: 1.5rem 2rem;
  flex-direction: column;
  gap: 1rem;
}

.mobile-nav.open {
  display: flex;
}

.mobile-nav a {
  font-size: 0.95rem;
  color: var(--color-text-light);
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--color-border);
}

.mobile-nav a:hover {
  color: var(--color-accent);
}

/* ===================== SURFACE SECTION ===================== */
.bg-surface {
  background: var(--color-surface);
  color: var(--color-bg);
}

.bg-surface h1,
.bg-surface h2,
.bg-surface h3 {
  color: var(--color-bg);
}

.bg-surface p,
.bg-surface li {
  color: #334155;
}

.bg-surface .section-label {
  color: #0369A1;
}

.bg-surface .divider {
  background: rgba(15, 23, 42, 0.12);
}

.bg-mid {
  background: #111827;
}

/* ===================== RESPONSIVE ===================== */
@media (max-width: 1100px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }
  .formula-workspace {
    grid-template-columns: 1fr;
  }
  .flask-panel {
    position: static;
    max-width: 480px;
  }
  .photo-row-3 {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 900px) {
  .asymmetric-grid {
    grid-template-columns: 1fr;
  }
  .asym-left {
    border-right: none;
    border-bottom: 1px solid var(--color-border);
    padding: 2.5rem 0;
  }
  .asym-right {
    padding: 2.5rem 0;
  }
  .two-col {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  .two-col.reverse {
    direction: ltr;
  }
  .two-col-img img {
    height: 320px;
  }
  .insight-matrix {
    grid-template-columns: 1fr;
  }
  .matrix-cell {
    border-right: none;
    border-bottom: 1px solid var(--color-border);
  }
  .faq-layout {
    grid-template-columns: 1fr;
  }
  .faq-rail {
    position: static;
    border-right: none;
    border-bottom: 1px solid var(--color-border);
    padding: 2rem 0;
  }
  .faq-main {
    padding: 2rem 0;
  }
  .contact-split {
    grid-template-columns: 1fr;
  }
  .contact-info-panel,
  .contact-form-panel {
    padding: 4rem 2rem;
  }
  .stat-strip {
    grid-template-columns: 1fr 1fr;
  }
  .info-grid {
    grid-template-columns: 1fr 1fr;
  }
  .info-cell:nth-child(3n) {
    border-right: 1px solid var(--color-border);
  }
  .info-cell:nth-child(2n) {
    border-right: none;
  }
  .formula-gallery {
    grid-template-columns: 1fr;
  }
  .formula-card {
    border-right: none;
    border-bottom: 1px solid var(--color-border);
  }
  .formula-card:last-child {
    border-bottom: none;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  .nav-toggle {
    display: flex;
  }
  h1 { font-size: clamp(1.8rem, 7vw, 2.8rem); }
  h2 { font-size: clamp(1.4rem, 5vw, 2rem); }
  .section { padding: 4rem 0; }
  .hero { min-height: 85vh; }
  .container { padding: 0 1.25rem; }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .photo-row-3,
  .photo-row-2,
  .photo-row-2r {
    grid-template-columns: 1fr;
  }
  .photo-cell-h400,
  .photo-cell-h500,
  .photo-cell-h300,
  .photo-cell-h350 { height: 260px; }
  .stat-strip {
    grid-template-columns: 1fr 1fr;
  }
  .info-grid {
    grid-template-columns: 1fr;
  }
  .info-cell {
    border-right: none;
  }
  .about-hero {
    min-height: 60vh;
  }
  .cookie-banner {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 480px) {
  .stat-strip {
    grid-template-columns: 1fr;
  }
  .stat-item {
    border-right: none;
    border-bottom: 1px solid var(--color-border);
  }
  .hero-content {
    max-width: 100%;
  }
}