/* ====================================================
   THE PEP SMART — Brand Stylesheet
   Palette: Deep navy/space backgrounds, electric teal
   primary, gold accent. Scientific, premium, modern.
   ==================================================== */

/* ---- FONTS ---- */
@import url('https://fonts.googleapis.com/css2?family=DM+Serif+Display:ital@0;1&family=DM+Sans:ital,opsz,wght@0,9..40,300..700;1,9..40,300..700&display=swap');

/* ---- TOKENS ---- */
:root {
  --font-display: 'DM Serif Display', Georgia, serif;
  --font-body: 'DM Sans', 'Helvetica Neue', sans-serif;

  --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);
  --text-3xl:  clamp(2.5rem,   1rem    + 4vw,    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;

  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.875rem;
  --radius-xl: 1.25rem;
  --radius-full: 9999px;

  --transition: 180ms cubic-bezier(0.16, 1, 0.3, 1);

  --content-default: 1160px;
  --content-narrow:  720px;
}

/* ---- LIGHT MODE ---- */
:root, [data-theme="light"] {
  --color-bg:           #F4F6F9;
  --color-surface:      #FFFFFF;
  --color-surface-2:    #EEF1F6;
  --color-border:       #D3D9E4;
  --color-text:         #0F1624;
  --color-text-muted:   #5B6478;
  --color-text-faint:   #9BA5B7;

  --color-primary:      #00B4D8;
  --color-primary-dark: #0077A8;
  --color-primary-glow: rgba(0, 180, 216, 0.18);

  --color-accent-2:     #FFB703;
  --color-accent-2-dim: rgba(255, 183, 3, 0.15);

  --shadow-sm: 0 1px 3px rgba(15, 22, 36, 0.07);
  --shadow-md: 0 4px 16px rgba(15, 22, 36, 0.10);
  --shadow-lg: 0 12px 40px rgba(15, 22, 36, 0.14);
}

/* ---- DARK MODE (default) ---- */
[data-theme="dark"] {
  --color-bg:           #080E1A;
  --color-surface:      #0E1625;
  --color-surface-2:    #131D30;
  --color-border:       #1E2A3F;
  --color-text:         #E2E8F3;
  --color-text-muted:   #7D8FA8;
  --color-text-faint:   #3D4E65;

  --color-primary:      #00C8F0;
  --color-primary-dark: #0099C0;
  --color-primary-glow: rgba(0, 200, 240, 0.15);

  --color-accent-2:     #FFB703;
  --color-accent-2-dim: rgba(255, 183, 3, 0.12);

  --shadow-sm: 0 1px 3px rgba(0,0,0,0.35);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.45);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.55);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg:           #080E1A;
    --color-surface:      #0E1625;
    --color-surface-2:    #131D30;
    --color-border:       #1E2A3F;
    --color-text:         #E2E8F3;
    --color-text-muted:   #7D8FA8;
    --color-text-faint:   #3D4E65;
    --color-primary:      #00C8F0;
    --color-primary-dark: #0099C0;
    --color-primary-glow: rgba(0, 200, 240, 0.15);
    --color-accent-2:     #FFB703;
    --color-accent-2-dim: rgba(255, 183, 3, 0.12);
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.35);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.45);
    --shadow-lg: 0 12px 40px rgba(0,0,0,0.55);
  }
}

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

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

body {
  min-height: 100dvh;
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  transition: background-color 0.3s ease, color 0.3s ease;
}

img, picture, svg { display: block; max-width: 100%; }
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: 1.15; font-family: var(--font-display); }
p, li { text-wrap: pretty; }
button { cursor: pointer; background: none; border: none; }

::selection { background: var(--color-primary-glow); color: var(--color-primary); }
:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 3px; border-radius: var(--radius-sm); }

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

/* ====== LAYOUT UTILS ====== */
.container {
  width: 100%;
  max-width: var(--content-default);
  margin-inline: auto;
  padding-inline: clamp(var(--space-6), 5vw, var(--space-16));
}

.section {
  padding-block: clamp(var(--space-16), 8vw, var(--space-24));
}
.section--alt { background: var(--color-surface); }

.section-header {
  text-align: center;
  max-width: 640px;
  margin-inline: auto;
  margin-bottom: clamp(var(--space-12), 5vw, var(--space-20));
}

.eyebrow {
  display: inline-block;
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-3);
}

.section-title {
  font-size: var(--text-2xl);
  font-family: var(--font-display);
  color: var(--color-text);
  margin-bottom: var(--space-4);
}

.section-sub {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.7;
  max-width: 56ch;
  margin-inline: auto;
}

.body-text {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.75;
  max-width: 58ch;
}

/* ====== BUTTONS ====== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.65em 1.5em;
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  border-radius: var(--radius-full);
  border: 1.5px solid transparent;
  text-decoration: none;
  transition: all var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-primary);
  color: #080E1A;
  border-color: var(--color-primary);
}
.btn-primary:hover {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  box-shadow: 0 0 20px var(--color-primary-glow);
  transform: translateY(-1px);
}

.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.btn-outline:hover {
  background: var(--color-primary-glow);
  box-shadow: 0 0 16px var(--color-primary-glow);
}

.btn-ghost {
  color: var(--color-text-muted);
  padding: var(--space-2);
  border-radius: var(--radius-md);
}
.btn-ghost:hover { color: var(--color-text); background: var(--color-surface-2); }

.btn-lg { padding: 0.8em 2em; font-size: var(--text-base); }
.btn-full { width: 100%; justify-content: center; }

/* ====== HEADER ====== */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in srgb, var(--color-bg) 85%, transparent);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow 0.3s ease;
}
.header--scrolled { box-shadow: var(--shadow-md); }

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  height: 68px;
  max-width: var(--content-default);
  margin-inline: auto;
  padding-inline: clamp(var(--space-6), 5vw, var(--space-16));
}

.logo-link { text-decoration: none; flex-shrink: 0; }
.logo-svg { width: 160px; height: 36px; }
.logo-svg--sm { width: 150px; height: 34px; }

.nav { display: none; }
@media (min-width: 900px) { .nav { display: block; } }

.nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  list-style: none;
}

.nav-link {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color var(--transition);
}
.nav-link:hover { color: var(--color-primary); }

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

/* Hamburger */
.hamburger {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-2);
  border-radius: var(--radius-sm);
}
.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: all 0.25s ease;
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
@media (min-width: 900px) { .hamburger { display: none; } }

/* Mobile nav */
.mobile-nav {
  display: none;
  border-top: 1px solid var(--color-border);
  background: var(--color-surface);
  padding: var(--space-6) clamp(var(--space-6), 5vw, var(--space-16));
}
.mobile-nav.open { display: block; }
.mobile-nav-list { list-style: none; display: flex; flex-direction: column; gap: var(--space-4); }
.mobile-nav-link {
  font-size: var(--text-base);
  font-weight: 500;
  color: var(--color-text-muted);
  text-decoration: none;
  padding: var(--space-2) 0;
  border-bottom: 1px solid var(--color-border);
  display: block;
}
.mobile-nav-link:hover { color: var(--color-primary); }

/* ====== HERO ====== */
.hero {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

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

.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
}
.hero-orb-1 {
  width: 600px;
  height: 600px;
  top: -20%;
  left: -10%;
  background: radial-gradient(circle, var(--color-primary-glow) 0%, transparent 70%);
  opacity: 0.6;
  animation: float 12s ease-in-out infinite;
}
.hero-orb-2 {
  width: 400px;
  height: 400px;
  bottom: 0;
  right: 5%;
  background: radial-gradient(circle, var(--color-accent-2-dim) 0%, transparent 70%);
  opacity: 0.5;
  animation: float 16s ease-in-out infinite reverse;
}

@keyframes float {
  0%, 100% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-30px) scale(1.05); }
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--color-border) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-border) 1px, transparent 1px);
  background-size: 60px 60px;
  opacity: 0.15;
  mask-image: radial-gradient(ellipse 80% 70% at 50% 0%, black 0%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 50% 0%, black 0%, transparent 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  padding-block: clamp(var(--space-20), 10vw, var(--space-24));
  max-width: 700px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: var(--color-primary-glow);
  border: 1px solid color-mix(in srgb, var(--color-primary) 40%, transparent);
  color: var(--color-primary);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-radius: var(--radius-full);
  padding: var(--space-2) var(--space-5);
  margin-bottom: var(--space-6);
}
.badge-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-primary);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(0.85); }
}

.hero-heading {
  font-size: clamp(2.8rem, 1rem + 5vw, 5.5rem);
  font-family: var(--font-display);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--color-text);
  margin-bottom: var(--space-6);
}
.hero-heading em {
  font-style: italic;
  color: var(--color-primary);
}

.hero-sub {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  line-height: 1.65;
  max-width: 52ch;
  margin-bottom: var(--space-10);
}

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-bottom: var(--space-12);
}

.hero-stats {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-6);
}
.stat { display: flex; flex-direction: column; }
.stat-num {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  color: var(--color-primary);
  line-height: 1;
}
.stat-label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  letter-spacing: 0.04em;
  margin-top: var(--space-1);
}
.stat-divider {
  width: 1px;
  height: 40px;
  background: var(--color-border);
}

/* Hero molecule decoration */
.hero-molecule {
  position: absolute;
  right: -60px;
  top: 50%;
  transform: translateY(-50%);
  width: clamp(280px, 40vw, 500px);
  opacity: 0.55;
  animation: spin-slow 60s linear infinite;
  z-index: 1;
  pointer-events: none;
}
@keyframes spin-slow {
  from { transform: translateY(-50%) rotate(0deg); }
  to   { transform: translateY(-50%) rotate(360deg); }
}

@media (max-width: 900px) {
  .hero-molecule { display: none; }
  .hero-content { max-width: 100%; }
}

/* ====== TRUST BAR ====== */
.trust-bar {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  padding-block: var(--space-5);
}

.trust-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: var(--space-5);
}

.trust-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  white-space: nowrap;
}
.trust-item svg { color: var(--color-primary); flex-shrink: 0; }

.trust-sep {
  width: 1px;
  height: 20px;
  background: var(--color-border);
  display: none;
}
@media (min-width: 700px) { .trust-sep { display: block; } }

/* ====== PRODUCTS ====== */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--space-6);
}

.product-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}
.product-card:hover {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 1px var(--color-primary), var(--shadow-lg);
  transform: translateY(-3px);
}

.product-card--featured {
  background: linear-gradient(135deg, var(--color-surface) 0%, color-mix(in srgb, var(--color-primary) 6%, var(--color-surface)) 100%);
  border-color: color-mix(in srgb, var(--color-primary) 40%, var(--color-border));
  grid-column: span 1;
}
@media (min-width: 700px) {
  .product-card--featured { grid-column: span 2; flex-direction: row; gap: var(--space-8); }
  .product-card--featured .product-card-content { flex: 1; }
}

.product-card--custom {
  border: 1.5px dashed color-mix(in srgb, var(--color-accent-2) 50%, var(--color-border));
  background: var(--color-accent-2-dim);
}
.product-card--custom:hover {
  border-color: var(--color-accent-2);
  box-shadow: 0 0 0 1px var(--color-accent-2), var(--shadow-lg);
}

.product-icon { flex-shrink: 0; }

.product-tag {
  display: inline-block;
  background: var(--color-primary-glow);
  color: var(--color-primary);
  border: 1px solid color-mix(in srgb, var(--color-primary) 30%, transparent);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-radius: var(--radius-full);
  padding: 2px 10px;
  margin-bottom: var(--space-2);
}

.product-name {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  color: var(--color-text);
  line-height: 1.2;
}

.product-desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.65;
}

.product-specs {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-top: var(--space-2);
}
.product-specs li {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.product-specs li::before {
  content: '';
  display: inline-block;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--color-primary);
  flex-shrink: 0;
}

.product-btn { margin-top: auto; align-self: flex-start; }

/* ====== SCIENCE ====== */
.science-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(var(--space-12), 6vw, var(--space-20));
  align-items: start;
}
@media (min-width: 900px) { .science-layout { grid-template-columns: 1fr 1fr; } }

.process-steps {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
  margin-top: var(--space-10);
}

.process-step {
  display: flex;
  gap: var(--space-6);
  align-items: flex-start;
}

.step-num {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-style: italic;
  color: var(--color-primary);
  opacity: 0.4;
  line-height: 1;
  min-width: 2.5rem;
  flex-shrink: 0;
}

.step-title {
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-2);
}

.step-desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.65;
}

/* Science visual */
.science-visual { display: flex; justify-content: center; }

.spps-diagram {
  background: var(--color-surface-2, var(--color-surface));
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  width: 100%;
  max-width: 420px;
}

.spps-chain {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-1);
  margin-bottom: var(--space-4);
  justify-content: center;
}

.spps-bead {
  background: var(--color-surface);
  border: 1.5px solid var(--color-primary);
  color: var(--color-primary);
  font-size: 0.65rem;
  font-weight: 700;
  padding: 4px 8px;
  border-radius: var(--radius-full);
}

.spps-aa {
  padding: 6px 10px;
  border-radius: var(--radius-md);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.04em;
}
.spps-aa--1 { background: var(--color-primary-glow); color: var(--color-primary); border: 1px solid color-mix(in srgb, var(--color-primary) 25%, transparent); }
.spps-aa--2 { background: var(--color-accent-2-dim); color: var(--color-accent-2); border: 1px solid color-mix(in srgb, var(--color-accent-2) 25%, transparent); }
.spps-aa--3 { background: var(--color-surface); color: var(--color-text-muted); border: 1px solid var(--color-border); }

.spps-bond {
  width: 10px;
  height: 2px;
  background: var(--color-border);
  border-radius: 1px;
}

.spps-label {
  text-align: center;
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  margin-bottom: var(--space-6);
}

.analysis-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}

.analysis-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  text-align: center;
}

.analysis-chart {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  gap: 4px;
  height: 60px;
  margin-bottom: var(--space-2);
}
.hplc-bar {
  width: 14px;
  background: var(--color-border);
  border-radius: 2px 2px 0 0;
  transition: height 1s ease;
}

.analysis-label { font-size: 0.65rem; color: var(--color-text-faint); margin-bottom: var(--space-1); }
.analysis-purity { font-size: var(--text-xs); font-weight: 700; color: var(--color-primary); }

.ms-display {
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-1);
  flex-direction: column;
}
.ms-val {
  font-family: var(--font-display);
  font-size: 1.4rem;
  color: var(--color-accent-2);
  line-height: 1;
}
.ms-unit { font-size: 0.65rem; color: var(--color-text-faint); }

/* ====== QUALITY ====== */
.quality-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-5);
}

.quality-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.quality-card:hover {
  border-color: color-mix(in srgb, var(--color-primary) 50%, var(--color-border));
  box-shadow: var(--shadow-md);
}

.quality-icon {
  width: 56px;
  height: 56px;
  background: var(--color-primary-glow);
  border: 1px solid color-mix(in srgb, var(--color-primary) 25%, transparent);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-5);
}

.quality-title {
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-3);
}

.quality-desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.65;
}

/* ====== ABOUT ====== */
.about-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(var(--space-12), 6vw, var(--space-20));
  align-items: center;
}
@media (min-width: 900px) { .about-layout { grid-template-columns: 1fr 1fr; } }

.about-values {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  margin-top: var(--space-8);
}

.value-item {
  display: flex;
  gap: var(--space-4);
  align-items: flex-start;
}

.value-icon {
  width: 36px;
  height: 36px;
  background: var(--color-primary-glow);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  flex-shrink: 0;
}

.value-item strong {
  display: block;
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-1);
}
.value-item p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* About badge stack */
.about-badge-stack {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}

.about-badge {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-8) var(--space-6);
  text-align: center;
  transition: border-color var(--transition), transform var(--transition);
}
.about-badge:hover { border-color: var(--color-primary); transform: translateY(-2px); }

.about-badge--accent {
  background: var(--color-primary-glow);
  border-color: color-mix(in srgb, var(--color-primary) 30%, transparent);
}

.about-badge-num {
  display: block;
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: var(--space-2);
}
.about-badge--accent .about-badge-num { color: var(--color-primary); }

.about-badge-text {
  display: block;
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-text-muted);
  letter-spacing: 0.04em;
}

/* ====== TESTIMONIALS ====== */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-6);
}

.testimonial-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.testimonial-card:hover {
  border-color: color-mix(in srgb, var(--color-primary) 40%, var(--color-border));
  box-shadow: var(--shadow-md);
}

.testimonial-stars {
  color: var(--color-accent-2);
  font-size: 1rem;
  letter-spacing: 2px;
}

.testimonial-quote {
  font-size: var(--text-sm);
  font-style: italic;
  color: var(--color-text-muted);
  line-height: 1.75;
  flex: 1;
  quotes: "\201C" "\201D";
}
.testimonial-quote::before { content: open-quote; color: var(--color-primary); font-size: 1.4em; line-height: 0; vertical-align: -0.3em; margin-right: 2px; }

.testimonial-author {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.testimonial-avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--color-primary-glow);
  border: 1.5px solid color-mix(in srgb, var(--color-primary) 35%, transparent);
  color: var(--color-primary);
  font-weight: 700;
  font-size: var(--text-xs);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.testimonial-author strong { display: block; font-size: var(--text-sm); color: var(--color-text); }
.testimonial-author span { display: block; font-size: var(--text-xs); color: var(--color-text-faint); }

/* ====== CONTACT ====== */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(var(--space-12), 6vw, var(--space-20));
  align-items: start;
}
@media (min-width: 900px) { .contact-layout { grid-template-columns: 1fr 1.3fr; } }

.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  margin-top: var(--space-8);
}

.contact-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}
.contact-item a { color: var(--color-primary); text-decoration: none; }
.contact-item a:hover { text-decoration: underline; }

.contact-note {
  margin-top: var(--space-8);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-accent-2);
  border-radius: var(--radius-md);
  padding: var(--space-5);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  line-height: 1.6;
}
.contact-note strong { color: var(--color-accent-2); display: block; margin-bottom: var(--space-1); }

/* Form */
.contact-form-wrap {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: clamp(var(--space-8), 4vw, var(--space-12));
}

.contact-form { display: flex; flex-direction: column; gap: var(--space-5); }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-4); }
@media (max-width: 500px) { .form-row { grid-template-columns: 1fr; } }

.form-group { display: flex; flex-direction: column; gap: var(--space-2); }

.form-label {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-text-muted);
  letter-spacing: 0.04em;
}

.form-input {
  background: var(--color-bg);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-sm);
  color: var(--color-text);
  transition: border-color var(--transition), box-shadow var(--transition);
  appearance: none;
}
.form-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-glow);
}
.form-input::placeholder { color: var(--color-text-faint); }

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

.form-disclaimer {
  text-align: center;
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  margin-top: var(--space-1);
}

/* ====== FOOTER ====== */
.footer {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
}

.footer-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(var(--space-10), 5vw, var(--space-16));
  padding-block: clamp(var(--space-16), 6vw, var(--space-20));
}
@media (min-width: 800px) { .footer-inner { grid-template-columns: 1.5fr 2fr; } }

.footer-brand { display: flex; flex-direction: column; gap: var(--space-4); }

.footer-tagline {
  font-family: var(--font-display);
  font-style: italic;
  font-size: var(--text-lg);
  color: var(--color-text);
  line-height: 1.4;
  margin-top: var(--space-2);
}

.footer-disclaimer {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  line-height: 1.6;
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-4);
  margin-top: var(--space-2);
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: var(--space-8);
}

.footer-col-title {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text);
  margin-bottom: var(--space-4);
}

.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: var(--space-3); }
.footer-col a {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color var(--transition);
}
.footer-col a:hover { color: var(--color-primary); }

.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding-block: var(--space-5);
}

.footer-bottom-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.footer-bottom p {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

.footer-legal-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-5);
}
.footer-legal-links a {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  text-decoration: none;
  transition: color var(--transition);
}
.footer-legal-links a:hover { color: var(--color-primary); }

/* ====== SCROLL ANIMATIONS ====== */
.fade-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-up.visible {
  opacity: 1;
  transform: none;
}
.fade-up:nth-child(2) { transition-delay: 0.1s; }
.fade-up:nth-child(3) { transition-delay: 0.2s; }
.fade-up:nth-child(4) { transition-delay: 0.3s; }
.fade-up:nth-child(5) { transition-delay: 0.4s; }
.fade-up:nth-child(6) { transition-delay: 0.5s; }

/* Active nav link */
.nav-link.active { color: var(--color-primary); }

/* ====== NEW LOGO STYLES (Concept D) ====== */
.logo-wrap {
  display: flex;
  flex-direction: column;
  gap: 3px;
  text-decoration: none;
}

/* Peptide chain icon */
.logo-chain {
  display: flex;
  align-items: center;
  gap: 0;
  height: 16px;
}

.lc-node {
  border-radius: 50%;
  background: var(--color-primary);
  flex-shrink: 0;
  display: block;
}
.lc-node--lg  { width: 14px; height: 14px; }
.lc-node--gold { width: 11px; height: 11px; background: var(--color-accent-2); }
.lc-node--md  { width: 9px;  height: 9px;  opacity: 0.65; }
.lc-node--sm  { width: 6px;  height: 6px;  opacity: 0.28; }

.lc-bond {
  display: block;
  height: 0;
  border-top: 2px dashed var(--color-primary);
  opacity: 0.45;
  flex-shrink: 0;
  margin: 0 2px;
}
.lc-bond        { width: 14px; }
.lc-bond--md    { width: 12px; }
.lc-bond--sm    { width: 10px; }

/* Wordmark */
.logo-text { display: flex; flex-direction: column; line-height: 1; }

.logo-the {
  font-family: 'Outfit', 'DM Sans', sans-serif;
  font-weight: 300;
  font-size: 8px;
  letter-spacing: 0.35em;
  color: var(--color-text-muted);
  line-height: 1;
  margin-bottom: 1px;
}

.logo-wordmark {
  display: flex;
  align-items: center;
  gap: 4px;
  line-height: 1;
}

.logo-pep {
  font-family: 'Outfit', 'DM Sans', sans-serif;
  font-weight: 800;
  font-size: 19px;
  color: var(--color-text);
  letter-spacing: -0.04em;
  line-height: 1;
}

.logo-dot {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--color-primary);
  display: inline-block;
  flex-shrink: 0;
  margin-bottom: 1px;
}

.logo-smart {
  font-family: 'Outfit', 'DM Sans', sans-serif;
  font-weight: 300;
  font-size: 19px;
  color: var(--color-primary);
  letter-spacing: -0.04em;
  line-height: 1;
}

/* Hide old SVG logo styles — no longer needed */
.logo-svg, .logo-svg--sm { display: none; }