/* Amplifying Life Ltd — Shared Stylesheet
   Design foundation: Website/Concepts/amplifying-life-concept.html */

/* CSS Variables */
:root {
  --bg:       #08080f;
  --bg2:      #0e0e1c;
  --bg3:      #14142a;
  --card:     #111120;
  --border:   rgba(255, 255, 255, 0.07);
  --text:     #e8e8f0;
  --muted:    #7878a0;
  --red:      #ff1800;
  --blue:     #0820ff;
  --gold:     #f5a623;
  --violet:   #9b59ff;
  --green:    #22cc66;
  --spectrum: linear-gradient(
    90deg,
    #ff1800 0%,
    #ff8800 20%,
    #ffe000 40%,
    #22cc66 60%,
    #0820ff 80%,
    #9b59ff 100%
  );
}

/* Import Fonts */
@import url("https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700;800&family=Inter:wght@400;500;600;700&display=swap");

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.6;
  font-size: 16px;
  overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 1rem;
}

h1 {
  font-size: clamp(52px, 8vw, 96px);
  font-weight: 900;
  letter-spacing: -3px;
  line-height: 1.0;
}

h2 {
  font-size: clamp(28px, 4vw, 48px);
  font-weight: 800;
  letter-spacing: -1px;
}

h3 {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.3px;
}

p {
  margin-bottom: 1rem;
  color: var(--text);
}

a {
  color: var(--blue);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

/* Container */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 48px;
}

/* ─── NAV ─── */
header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(8, 8, 15, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}

nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 0;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-family: "Space Grotesk", sans-serif;
  font-size: 18px;
  letter-spacing: -0.3px;
  color: inherit;
  text-decoration: none;
}

.nav-brand svg {
  width: 26px;
  height: auto;
}

.nav-brand .r { color: var(--red); }
.nav-brand .b { color: var(--blue); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
  list-style: none;
}

.nav-links a {
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.3px;
  color: var(--muted);
  transition: color 0.2s ease;
}

.nav-links a:hover {
  color: var(--text);
}

.nav-links a.active {
  color: var(--text);
}

.nav-cta {
  background: var(--blue);
  color: #fff !important;
  padding: 9px 22px;
  border-radius: 22px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.3px;
  transition: opacity 0.2s, transform 0.2s;
}

.nav-cta:hover {
  opacity: 0.85;
  transform: translateY(-1px);
  color: #fff !important;
}

/* Hamburger menu button */
.nav-hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}

.nav-hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--text);
  border-radius: 1px;
  transition: transform 0.3s, opacity 0.3s;
}

/* Active hamburger — X shape */
.nav-hamburger.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-hamburger.active span:nth-child(2) {
  opacity: 0;
}

.nav-hamburger.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile nav overlay */
.nav-links.open {
  display: flex !important;
}

/* When mobile menu is open, raise header above all page content and clear its background */
@media (max-width: 768px) {
  header.menu-open {
    z-index: 9999;
    background: transparent;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    border-bottom: none;
  }
}

/* ─── HERO ─── */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 120px 48px 80px;
  position: relative;
  overflow: hidden;
  text-align: center;
}

/* Radial background glow */
.hero::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -60%);
  width: 900px;
  height: 900px;
  border-radius: 50%;
  background: radial-gradient(ellipse, rgba(232, 32, 32, 0.08) 0%, rgba(34, 68, 255, 0.06) 40%, transparent 70%);
  pointer-events: none;
}

.hero-eyebrow {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--text);
  margin-bottom: 20px;
}

/* AL Mark in hero — large, bold, centred */
.hero-mark {
  width: 360px;
  height: 300px;
  margin: 0 auto 8px;
}

.hero-mark svg {
  width: 100%;
  height: 100%;
}

/* Floating spectrum line */
.spectrum-line {
  width: 320px;
  height: 3px;
  border-radius: 2px;
  background: var(--spectrum);
  margin: 0 auto 48px;
  box-shadow: 0 0 20px rgba(232, 32, 32, 0.4), 0 0 40px rgba(34, 68, 255, 0.3);
  animation: pulse-line 3s ease-in-out infinite alternate;
}

@keyframes pulse-line {
  from {
    opacity: 0.7;
    width: 280px;
  }
  to {
    opacity: 1.0;
    width: 360px;
  }
}

.hero h1 {
  margin-bottom: 28px;
}

.hero-subtitle {
  font-size: clamp(16px, 2.5vw, 20px);
  color: var(--muted);
  max-width: 640px;
  margin: 0 auto 48px;
  line-height: 1.7;
  font-weight: 400;
}

.hero-subtitle strong {
  color: var(--text);
}

.hero-ctas {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* Wavelength strip at hero bottom */
.wavelength-strip {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--spectrum);
  opacity: 0.5;
}

/* ─── BUTTONS ─── */
.btn {
  padding: 14px 32px;
  border-radius: 28px;
  font-weight: 600;
  font-size: 15px;
  letter-spacing: 0.2px;
  cursor: pointer;
  transition: all 0.2s ease;
  border: none;
  font-family: "Inter", sans-serif;
  text-decoration: none;
  display: inline-block;
}

.btn-primary {
  background: var(--blue);
  color: #fff;
  box-shadow: 0 4px 24px rgba(8, 32, 255, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(8, 32, 255, 0.5);
  color: #fff;
}

.btn-outline {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
}

.btn-outline:hover {
  border-color: rgba(255, 255, 255, 0.25);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
}

/* ─── SECTIONS ─── */
section {
  padding: 100px 48px;
  max-width: 1280px;
  margin: 0 auto;
}

.section-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 14px;
}

.section-title {
  font-size: clamp(28px, 4vw, 48px);
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 16px;
  max-width: 800px;
}

.section-sub {
  font-size: 17px;
  color: var(--muted);
  max-width: 600px;
  line-height: 1.7;
}

/* Full-width section wrapper (for bg colours spanning full width) */
.section-full {
  padding: 100px 48px;
}

.section-full .section-inner {
  max-width: 1280px;
  margin: 0 auto;
}

/* ─── SPECTRUM DIVIDER ─── */
.spectrum-divider {
  height: 1px;
  background: var(--spectrum);
  opacity: 0.2;
  margin: 0;
}

/* ─── 4 PILLARS CARDS ─── */
.pillars-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
  margin-top: 56px;
}

.pillar-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 36px 32px;
  position: relative;
  overflow: hidden;
  transition: transform 0.25s, border-color 0.25s;
  cursor: default;
}

.pillar-card:hover {
  transform: translateY(-4px);
}

.pillar-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
}

/* Card colour variants */
.pillar-card.book::before    { background: linear-gradient(90deg, #f5a623, #9b59ff); }
.pillar-card.book:hover      { border-color: rgba(245, 166, 35, 0.3); }
.pillar-card.product::before { background: linear-gradient(90deg, #ff1800, #ff8800); }
.pillar-card.product:hover   { border-color: rgba(232, 32, 32, 0.35); }
.pillar-card.rd::before      { background: linear-gradient(90deg, #2244ff, #22cc66); }
.pillar-card.rd:hover        { border-color: rgba(34, 68, 255, 0.3); }
.pillar-card.reports::before { background: linear-gradient(90deg, #9b59ff, #2244ff); }
.pillar-card.reports:hover   { border-color: rgba(155, 89, 255, 0.3); }

/* Glow blob behind each card */
.pillar-glow {
  position: absolute;
  top: -30px;
  right: -30px;
  width: 160px;
  height: 160px;
  border-radius: 50%;
  opacity: 0.08;
  pointer-events: none;
}

.book .pillar-glow    { background: radial-gradient(circle, #f5a623, transparent 70%); }
.product .pillar-glow { background: radial-gradient(circle, #ff1800, transparent 70%); }
.rd .pillar-glow      { background: radial-gradient(circle, #2244ff, transparent 70%); }
.reports .pillar-glow { background: radial-gradient(circle, #9b59ff, transparent 70%); }

.pillar-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin-bottom: 24px;
}

.book .pillar-icon    { background: rgba(245, 166, 35, 0.12); }
.product .pillar-icon { background: rgba(232, 32, 32, 0.12); }
.rd .pillar-icon      { background: rgba(34, 68, 255, 0.12); }
.reports .pillar-icon { background: rgba(155, 89, 255, 0.12); }

.pillar-tag {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 12px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 14px;
}

.book .pillar-tag    { background: rgba(245, 166, 35, 0.15); color: #f5a623; }
.product .pillar-tag { background: rgba(232, 32, 32, 0.15); color: #ff6655; }
.rd .pillar-tag      { background: rgba(34, 68, 255, 0.15); color: #668aff; }
.reports .pillar-tag { background: rgba(155, 89, 255, 0.15); color: #bb88ff; }

.pillar-title {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.3px;
  margin-bottom: 10px;
}

.pillar-desc {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.7;
  margin: 0;
}

.pillar-link {
  display: inline-block;
  margin-top: 16px;
  font-size: 14px;
  font-weight: 600;
}

.pillar-link.gold   { color: var(--gold); }
.pillar-link.red    { color: var(--red); }
.pillar-link.blue   { color: var(--blue); }
.pillar-link.violet { color: var(--violet); }

/* ─── WAVELENGTH SCIENCE STRIP ─── */
.light-strip {
  background: var(--bg2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 80px 48px;
}

.light-strip-inner {
  max-width: 1280px;
  margin: 0 auto;
}

.wavelengths {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 2px;
  margin-top: 48px;
  border-radius: 16px;
  overflow: hidden;
}

.wl {
  padding: 28px 20px;
  text-align: center;
  transition: transform 0.2s;
  cursor: default;
}

.wl:hover {
  transform: scaleY(1.04);
}

.wl-nm {
  font-size: 28px;
  font-weight: 800;
  letter-spacing: -1px;
  font-family: "Space Grotesk", sans-serif;
}

.wl-name {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin: 4px 0;
}

.wl-use {
  font-size: 11px;
  opacity: 0.7;
  line-height: 1.5;
}

.wl.w630  { background: rgba(255, 50, 50, 0.12); }
.wl.w630 .wl-nm { color: #ff4040; }
.wl.w660  { background: rgba(220, 30, 30, 0.18); }
.wl.w660 .wl-nm { color: #ff1800; }
.wl.w810  { background: rgba(200, 0, 80, 0.12); }
.wl.w810 .wl-nm { color: #cc4488; }
.wl.w850  { background: rgba(130, 0, 130, 0.12); }
.wl.w850 .wl-nm { color: #aa44cc; }
.wl.w940  { background: rgba(80, 0, 160, 0.12); }
.wl.w940 .wl-nm { color: #8833bb; }

/* ─── BOOK SECTION ─── */
.book-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
  max-width: 1280px;
  margin: 0 auto;
  padding: 100px 48px;
}

.book-cover-wrap {
  position: relative;
  display: flex;
  justify-content: center;
}

.book-cover-wrap::before {
  content: '';
  position: absolute;
  inset: -40px;
  border-radius: 50%;
  background: radial-gradient(ellipse, rgba(155, 89, 255, 0.12), rgba(245, 166, 35, 0.08), transparent 70%);
  animation: book-glow 5s ease-in-out infinite alternate;
}

@keyframes book-glow {
  from { transform: scale(0.95); opacity: 0.7; }
  to   { transform: scale(1.05); opacity: 1.0; }
}

.book-cover-img {
  width: 100%;
  max-width: 320px;
  border-radius: 12px;
  box-shadow: 0 32px 80px rgba(0, 0, 0, 0.6), 0 0 60px rgba(155, 89, 255, 0.15);
  position: relative;
  z-index: 2;
}

.book-text .section-title {
  font-size: clamp(24px, 3.5vw, 42px);
}

.book-quote {
  margin: 28px 0;
  padding: 20px 24px;
  background: var(--card);
  border-left: 3px solid var(--gold);
  border-radius: 0 12px 12px 0;
  font-size: 16px;
  color: var(--text);
  line-height: 1.7;
  font-style: italic;
}

.book-quote cite {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  font-style: normal;
  color: var(--muted);
}

/* ─── PRODUCT SECTION ─── */
.product-section {
  background: var(--bg2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 100px 48px;
}

.product-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.product-visual {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 24px;
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.product-visual::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 50%, rgba(232, 32, 32, 0.15), transparent 65%);
  animation: product-pulse 3s ease-in-out infinite alternate;
}

@keyframes product-pulse {
  from { opacity: 0.5; }
  to   { opacity: 1.0; }
}

.product-placeholder {
  font-size: 80px;
  position: relative;
  z-index: 2;
  filter: drop-shadow(0 0 30px rgba(232, 32, 32, 0.6));
  animation: product-pulse 3s ease-in-out infinite alternate;
}

.product-specs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 36px;
}

.spec-item {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px 20px;
}

.spec-value {
  font-size: 22px;
  font-weight: 800;
  color: var(--red);
  letter-spacing: -0.5px;
  font-family: "Space Grotesk", sans-serif;
}

.spec-label {
  font-size: 12px;
  color: var(--muted);
  margin-top: 2px;
}

/* ─── QUOTE BANNER ─── */
.quote-banner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 80px 48px;
}

.quote-inner {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 60px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.quote-inner::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--spectrum);
}

.big-quote {
  font-size: clamp(22px, 3.5vw, 40px);
  font-weight: 700;
  letter-spacing: -0.5px;
  line-height: 1.35;
  max-width: 800px;
  margin: 0 auto 20px;
  font-family: "Space Grotesk", sans-serif;
}

.big-quote .highlight-r { color: var(--red); }
.big-quote .highlight-g { color: var(--gold); }
.big-quote .highlight-b { color: #668aff; }

.quote-author {
  color: var(--muted);
  font-size: 14px;
}

/* Accent colours for inline use */
.accent-red    { color: var(--red); }
.accent-gold   { color: var(--gold); }
.accent-blue   { color: var(--blue); }
.accent-green  { color: var(--green); }
.accent-violet { color: var(--violet); }

/* ─── AFFILIATIONS STRIP ─── */
.affiliations-strip {
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 48px 0;
  max-width: none;
  width: 100%;
}

.affiliations-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 3px;
  color: var(--muted);
  text-transform: uppercase;
  margin-bottom: 24px;
  text-align: center;
}

.affiliations-list {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 48px;
  flex-wrap: wrap;
  text-align: center;
}

.affiliations-list p {
  margin: 0;
  font-size: 14px;
  color: var(--muted);
  font-weight: 500;
  letter-spacing: 0.3px;
}

.affiliations-logos {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  max-width: 1280px;
  margin: 0 auto;
}

.affiliations-logos img {
  width: 100%;
  height: 90px;
  object-fit: contain;
  opacity: 1;
  transition: transform 0.3s ease;
}

.affiliations-logos img:hover {
  transform: scale(1.03);
}

/* ─── FORMS ─── */
form {
  max-width: 600px;
  margin: 0 auto;
}

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

label {
  display: block;
  font-weight: 500;
  margin-bottom: 0.5rem;
  font-size: 14px;
}

input[type="text"],
input[type="email"],
input[type="url"],
select,
textarea {
  width: 100%;
  padding: 12px 16px;
  background-color: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-family: "Inter", sans-serif;
  font-size: 15px;
  transition: all 0.2s ease;
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="url"]:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--blue);
  background-color: var(--bg2);
  box-shadow: 0 0 0 3px rgba(8, 32, 255, 0.1);
}

textarea {
  resize: vertical;
  min-height: 120px;
}

.form-note {
  font-size: 13px;
  color: var(--muted);
  margin-top: 1rem;
  text-align: center;
}

/* ─── BADGE ─── */
.badge {
  display: inline-block;
  background-color: var(--bg3);
  border: 1px solid var(--border);
  color: var(--muted);
  padding: 4px 12px;
  border-radius: 12px;
  font-size: 11px;
  font-weight: 600;
  margin-top: 16px;
  letter-spacing: 0.5px;
}

/* ─── ROLE CARDS (Careers) ─── */
.role-card {
  background-color: var(--card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 36px 32px;
  margin-bottom: 24px;
  transition: all 0.25s ease;
  position: relative;
  overflow: hidden;
}

.role-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  width: 3px;
}

.role-card-red::before  { background: var(--red); }
.role-card-blue::before { background: var(--blue); }

.role-card:hover {
  border-color: rgba(255, 255, 255, 0.15);
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.5);
}

.role-meta {
  display: flex;
  gap: 24px;
  margin-bottom: 20px;
  flex-wrap: wrap;
  font-size: 13px;
}

.role-meta p {
  margin: 0;
  color: var(--muted);
}

.role-meta strong {
  color: var(--text);
}

.role-section {
  margin-bottom: 20px;
}

.role-section h4 {
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text);
}

.role-section ul {
  list-style: none;
  padding-left: 0;
}

.role-section li {
  margin-bottom: 6px;
  color: var(--muted);
  padding-left: 20px;
  position: relative;
  font-size: 14px;
  line-height: 1.6;
}

.role-section li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--blue);
}

/* ─── FOOTER ─── */
footer {
  background: var(--bg);
  border-top: 1px solid var(--border);
  padding: 60px 48px 40px;
  margin-top: 0;
}

.footer-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 48px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}

.footer-brand svg {
  width: 24px;
  height: 20px;
}

.footer-logo {
  font-size: 20px;
  font-weight: 800;
  font-family: "Space Grotesk", sans-serif;
}

.footer-logo .r { color: var(--red); }
.footer-logo .b { color: var(--blue); }

.footer-tagline {
  font-size: 13px;
  color: var(--muted);
  margin-top: 4px;
}

.footer-links-group {
  display: flex;
  gap: 64px;
}

.footer-col h4 {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text);
  margin-bottom: 16px;
}

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

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col a {
  color: var(--muted);
  font-size: 14px;
  transition: color 0.2s;
}

.footer-col a:hover {
  color: var(--text);
}

.footer-copy {
  color: var(--muted);
  font-size: 12px;
  width: 100%;
  text-align: center;
  padding-top: 32px;
  border-top: 1px solid var(--border);
  margin-top: 32px;
}

/* ─── GENERAL PURPOSE CLASSES ─── */
/* For inner pages that don't need full-viewport hero */
.page-hero {
  padding: 140px 48px 80px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -60%);
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(ellipse, rgba(232, 32, 32, 0.05) 0%, rgba(34, 68, 255, 0.04) 40%, transparent 70%);
  pointer-events: none;
}

.page-hero .spectrum-line {
  margin-bottom: 32px;
}

.page-hero h1 {
  font-size: clamp(52px, 8vw, 96px);
  font-weight: 900;
  letter-spacing: -3px;
  line-height: 1.0;
  margin-bottom: 24px;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.page-hero .hero-subtitle {
  margin-bottom: 32px;
}

/* Content section for inner pages */
.content-section {
  max-width: 1280px;
  margin: 0 auto;
  padding: 80px 48px;
}

.content-section p {
  font-size: 17px;
  color: var(--muted);
  max-width: 700px;
  line-height: 1.8;
}

.content-section p strong {
  color: var(--text);
  font-weight: 500;
}

/* Cards grid (generic) */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  margin-top: 48px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px 24px;
  position: relative;
  overflow: hidden;
  transition: transform 0.25s, border-color 0.25s;
}

.card:hover {
  transform: translateY(-3px);
  border-color: rgba(255, 255, 255, 0.12);
}

.card h3 {
  font-size: 18px;
  margin-bottom: 10px;
  margin-top: 0;
}

.card p {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.7;
  margin: 0;
}

.card-accent-blue { border-top: 2px solid var(--blue); }
.card-accent-red  { border-top: 2px solid var(--red); }
.card-accent-gold { border-top: 2px solid var(--gold); }
.card-accent-violet { border-top: 2px solid var(--violet); }

/* ─── RESPONSIVE ─── */
@media (max-width: 768px) {
  .container {
    padding: 0 24px;
  }

  h1 {
    font-size: clamp(36px, 10vw, 52px);
    letter-spacing: -2px;
  }

  h2 {
    font-size: clamp(24px, 6vw, 36px);
  }

  section {
    padding: 60px 24px;
  }

  .hero {
    padding: 100px 24px 60px;
    min-height: auto;
  }

  .hero-mark {
    width: 240px;
    height: 200px;
  }

  .spectrum-line {
    width: 200px;
  }

  @keyframes pulse-line {
    from { opacity: 0.7; width: 180px; }
    to   { opacity: 1.0; width: 240px; }
  }

  .hero-ctas {
    flex-direction: column;
    align-items: center;
    width: 100%;
  }

  .hero-ctas .btn {
    width: 100%;
    max-width: 300px;
    text-align: center;
  }

  .nav-links {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: #0a0a18;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    gap: 8px;
    z-index: 999;
    padding: 90px 24px 24px;
    overflow-y: auto;
    -webkit-transform: translateZ(0);
    transform: translateZ(0);
    -webkit-overflow-scrolling: touch;
  }

  .nav-links li {
    width: 100%;
    max-width: 340px;
    text-align: center;
    list-style: none;
  }

  .nav-links a {
    display: block;
    font-size: 22px;
    font-weight: 600;
    font-family: "Space Grotesk", sans-serif;
    color: #e8e8f0;
    letter-spacing: -0.3px;
    padding: 16px 24px;
    border-radius: 14px;
    background-color: #1a1a2e;
    border: 1px solid #2a2a44;
    transition: all 0.2s ease;
  }

  .nav-links a:hover {
    color: #ffffff;
    background-color: #222244;
    border-color: #3a3a5a;
  }

  .nav-links a.active {
    color: #ffffff;
    background-color: #0820ff;
    border-color: #0820ff;
  }

  .nav-hamburger {
    display: flex;
    position: relative;
    z-index: 1000;
  }

  .nav-cta {
    display: none;
  }

  nav {
    padding: 14px 0;
  }

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

  .book-section {
    grid-template-columns: 1fr;
    gap: 48px;
    padding: 60px 24px;
  }

  .product-inner {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .product-section,
  .light-strip {
    padding: 60px 24px;
  }

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

  .product-specs {
    grid-template-columns: 1fr 1fr;
  }

  .quote-banner {
    padding: 60px 24px;
  }

  .quote-inner {
    padding: 36px 24px;
    border-radius: 16px;
  }

  .big-quote {
    font-size: clamp(18px, 5vw, 28px);
  }

  footer {
    padding: 48px 24px 32px;
  }

  .footer-inner {
    flex-direction: column;
    gap: 32px;
  }

  .footer-links-group {
    gap: 32px;
  }

  .page-hero {
    padding: 100px 24px 60px;
  }

  .page-hero h1 {
    font-size: clamp(36px, 10vw, 52px);
    letter-spacing: -2px;
  }

  .content-section {
    padding: 60px 24px;
  }

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

  .affiliations-list {
    gap: 24px;
  }

  .affiliations-logos {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

  .affiliations-logos img {
    height: 60px;
  }
}