:root {
  --bg: #0a0a0a;
  --bg-elevated: #0f0f0f;
  --card: #111111;
  --border: #1a1a1a;
  --border-hover: #2a2a2a;
  --text: #e0e0e0;
  --text-dim: #888;
  --teal: #00D4AA;
  --teal-hover: #00eabb;
  --teal-glow: rgba(0, 212, 170, 0.15);
  --teal-border: rgba(0, 212, 170, 0.25);
  --red: #ff4d4d;
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }

/* ── NAV ─────────────────────────────────────────────── */

.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 10, 10, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-brand {
  font-family: 'Montserrat', sans-serif;
  font-weight: 800;
  font-size: 0.95rem;
  color: #fff;
  letter-spacing: -0.3px;
}

.nav-brand span { color: var(--teal); }

.nav-links {
  display: flex;
  gap: 6px;
  align-items: center;
}

.nav-link {
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-dim);
  padding: 6px 12px;
  border-radius: 8px;
  transition: all 0.2s;
}

.nav-link:hover,
.nav-link.active {
  color: var(--teal);
  background: var(--teal-glow);
}

.nav-link.nav-cta {
  color: #000;
  background: var(--teal);
  font-weight: 600;
}

.nav-link.nav-cta:hover {
  background: var(--teal-hover);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text);
  font-size: 1.4rem;
  cursor: pointer;
  padding: 4px;
}

/* ── PAGE CONTAINER ──────────────────────────────────── */

.page-wrap {
  max-width: 1080px;
  margin: 0 auto;
  padding: 48px 24px;
}

.page-narrow {
  max-width: 720px;
  margin: 0 auto;
  padding: 48px 24px;
}

/* ── HERO ────────────────────────────────────────────── */

.hero {
  text-align: center;
  padding: 48px 0 40px;
}

.hero-label {
  display: inline-block;
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 0.6rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--text-dim);
  margin-bottom: 16px;
}

.hero h1 {
  font-family: 'Montserrat', sans-serif;
  font-weight: 800;
  font-size: clamp(2rem, 5vw, 2.75rem);
  line-height: 1.1;
  color: #fff;
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}

.hero h1 .accent { color: var(--teal); }

.hero .subtitle {
  font-size: 1.05rem;
  color: var(--text-dim);
  line-height: 1.65;
  max-width: 560px;
  margin: 0 auto;
}

/* ── BADGE ───────────────────────────────────────────── */

.badge {
  display: inline-block;
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 0.6rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--teal);
  padding: 5px 12px;
  border: 1px solid var(--teal-border);
  border-radius: 20px;
  background: var(--teal-glow);
}

/* ── SECTION ─────────────────────────────────────────── */

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  margin-top: 8px;
}

.section-title {
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--text-dim);
}

.section-link {
  font-size: 0.78rem;
  color: var(--teal);
  font-weight: 500;
  transition: color 0.2s;
}

.section-link:hover { color: var(--teal-hover); }

/* ── PEPTIDE CARD (PepPedia style) ───────────────────── */

.peptide-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 16px;
  margin-bottom: 40px;
}

.peptide-card {
  display: flex;
  flex-direction: column;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px;
  transition: all 0.25s;
  cursor: pointer;
}

.peptide-card:hover {
  border-color: var(--teal);
  background: var(--teal-glow);
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(0, 212, 170, 0.08);
}

.card-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 12px;
}

.card-abbr {
  font-family: 'Montserrat', sans-serif;
  font-weight: 800;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--teal);
}

.card-research {
  font-size: 0.62rem;
  font-weight: 600;
  color: var(--text-dim);
  padding: 3px 8px;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.04);
  white-space: nowrap;
}

.card-name {
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 1.05rem;
  color: #fff;
  margin-bottom: 6px;
  line-height: 1.3;
}

.card-desc {
  font-size: 0.82rem;
  color: var(--text-dim);
  line-height: 1.55;
  margin-bottom: 14px;
  flex: 1;
}

.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 14px;
}

.tag {
  font-size: 0.62rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 4px 10px;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-dim);
}

.tag.teal {
  background: var(--teal-glow);
  color: var(--teal);
}

.card-uses {
  padding-top: 12px;
  border-top: 1px solid var(--border);
}

.card-uses-label {
  font-size: 0.58rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-dim);
  margin-bottom: 6px;
}

.card-uses-list {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 8px;
}

.card-uses-list span {
  font-size: 0.72rem;
  color: var(--text);
}

.card-uses-list span::after {
  content: '·';
  margin-left: 8px;
  color: var(--border-hover);
}

.card-uses-list span:last-child::after { content: ''; }

.card-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}

.card-link {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--teal);
  display: flex;
  align-items: center;
  gap: 4px;
}

.card-link svg {
  width: 14px;
  height: 14px;
  transition: transform 0.2s;
}

.peptide-card:hover .card-link svg {
  transform: translateX(2px);
}

/* ── ENCYCLOPEDIA PAGE ───────────────────────────────── */

.ency-header {
  margin-bottom: 32px;
}

.ency-back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.78rem;
  color: var(--text-dim);
  margin-bottom: 20px;
  transition: color 0.2s;
}

.ency-back:hover { color: var(--teal); }

.ency-back svg { width: 14px; height: 14px; }

.ency-badge-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}

.ency-title {
  font-family: 'Montserrat', sans-serif;
  font-weight: 800;
  font-size: clamp(1.5rem, 4vw, 2rem);
  color: #fff;
  margin-bottom: 10px;
  line-height: 1.15;
  letter-spacing: -0.5px;
}

.ency-subtitle {
  font-size: 0.95rem;
  color: var(--text-dim);
  line-height: 1.65;
  margin-bottom: 20px;
}

.ency-tags { margin-bottom: 24px; }

/* ── CONTENT SECTIONS ────────────────────────────────── */

.content-section {
  margin-bottom: 36px;
}

.content-section h2 {
  font-family: 'Montserrat', sans-serif;
  font-weight: 800;
  font-size: 1.15rem;
  color: #fff;
  margin-bottom: 16px;
  padding-top: 8px;
}

.content-section h3 {
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 0.95rem;
  color: #fff;
  margin-bottom: 10px;
  margin-top: 20px;
}

.content-section p {
  font-size: 0.88rem;
  line-height: 1.7;
  color: var(--text);
  margin-bottom: 12px;
}

.content-section strong { color: #fff; }

/* ── DATA TABLE ──────────────────────────────────────── */

.data-table-wrap {
  overflow-x: auto;
  margin: 16px 0;
  border-radius: 12px;
  border: 1px solid var(--border);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.82rem;
}

.data-table th {
  background: var(--bg-elevated);
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--text-dim);
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.data-table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  color: var(--text);
  line-height: 1.5;
}

.data-table tr:last-child td { border-bottom: none; }

.data-table td strong { color: #fff; }
.data-table td .teal { color: var(--teal); font-weight: 600; }

/* ── TIMELINE ────────────────────────────────────────── */

.ency-timeline {
  margin: 16px 0;
}

.tl-item {
  display: flex;
  gap: 16px;
  margin-bottom: 16px;
}

.tl-marker {
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 24px;
}

.tl-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--teal);
  box-shadow: 0 0 8px var(--teal-glow);
  flex-shrink: 0;
}

.tl-line {
  width: 1px;
  flex: 1;
  background: var(--border);
  margin-top: 6px;
}

.tl-content { flex: 1; }

.tl-label {
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 0.82rem;
  color: #fff;
  margin-bottom: 4px;
}

.tl-text {
  font-size: 0.82rem;
  color: var(--text-dim);
  line-height: 1.55;
}

/* ── INFO BOX ────────────────────────────────────────── */

.info-box {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 22px 24px;
  margin: 20px 0;
}

.info-box.teal-border {
  border-color: var(--teal-border);
  background: var(--teal-glow);
}

.info-box h4 {
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 0.82rem;
  color: #fff;
  margin-bottom: 10px;
}

.info-box p {
  font-size: 0.82rem;
  color: var(--text-dim);
  line-height: 1.6;
  margin-bottom: 8px;
}

.info-box p:last-child { margin-bottom: 0; }

.info-box ul {
  list-style: none;
  padding: 0;
}

.info-box li {
  position: relative;
  padding-left: 18px;
  margin-bottom: 8px;
  font-size: 0.82rem;
  color: var(--text-dim);
  line-height: 1.55;
}

.info-box li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 7px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--teal);
}

/* ── LIST (bullets) ──────────────────────────────────── */

.bullet-list {
  list-style: none;
  padding: 0;
  margin: 12px 0;
}

.bullet-list li {
  position: relative;
  padding-left: 22px;
  margin-bottom: 10px;
  font-size: 0.86rem;
  line-height: 1.6;
  color: var(--text);
}

.bullet-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--teal);
}

.bullet-list li strong { color: #fff; }

/* ── NUMBERED LIST ───────────────────────────────────── */

.numbered-list {
  list-style: none;
  padding: 0;
  margin: 12px 0;
  counter-reset: num;
}

.numbered-list li {
  position: relative;
  padding-left: 32px;
  margin-bottom: 12px;
  font-size: 0.86rem;
  line-height: 1.6;
  color: var(--text);
  counter-increment: num;
}

.numbered-list li::before {
  content: counter(num);
  position: absolute;
  left: 0;
  top: 0;
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 0.78rem;
  color: var(--teal);
  width: 22px;
  height: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--teal-glow);
  border-radius: 6px;
}

.numbered-list li strong { color: #fff; }

/* ── FORM CARD ───────────────────────────────────────── */

.form-card {
  background: var(--card);
  border: 1px solid var(--teal-border);
  border-radius: 16px;
  padding: 28px 24px;
  margin: 32px 0;
}

.form-card h3 {
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 1rem;
  color: #fff;
  margin-bottom: 6px;
}

.form-card .form-sub {
  font-size: 0.82rem;
  color: var(--text-dim);
  margin-bottom: 18px;
  line-height: 1.5;
}

.form-card label {
  display: block;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-dim);
  margin-bottom: 8px;
}

.form-card input[type="email"],
.form-card input[type="text"] {
  width: 100%;
  padding: 13px 16px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--bg);
  color: #fff;
  font-family: 'Inter', sans-serif;
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.2s;
  margin-bottom: 14px;
}

.form-card input:focus {
  border-color: var(--teal);
  box-shadow: 0 0 0 3px var(--teal-glow);
}

.form-card input::placeholder { color: #444; }

.form-card button,
.btn-primary {
  width: 100%;
  padding: 14px;
  border: none;
  border-radius: 10px;
  background: var(--teal);
  color: #000;
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 0.9rem;
  letter-spacing: 0.5px;
  cursor: pointer;
  transition: all 0.2s;
}

.form-card button:hover,
.btn-primary:hover {
  background: var(--teal-hover);
  box-shadow: 0 4px 20px rgba(0, 212, 170, 0.3);
  transform: translateY(-1px);
}

.form-card button:disabled {
  opacity: 0.6;
  cursor: wait;
}

.form-card .privacy {
  text-align: center;
  font-size: 0.7rem;
  color: #444;
  margin-top: 10px;
}

.form-card .success-msg {
  text-align: center;
  padding: 20px;
  color: var(--teal);
  font-weight: 600;
  font-size: 1rem;
  line-height: 1.6;
}

/* ── TOOL LINK CARD ──────────────────────────────────── */

.tool-link {
  display: block;
  text-align: center;
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--card);
  transition: all 0.2s;
  margin: 16px 0;
}

.tool-link:hover {
  border-color: var(--teal);
  background: var(--teal-glow);
}

.tool-link .tool-text {
  font-size: 0.85rem;
  color: var(--teal);
  font-weight: 600;
}

.tool-link .tool-sub {
  display: block;
  font-size: 0.72rem;
  color: var(--text-dim);
  font-weight: 400;
  margin-top: 3px;
}

/* ── FILTER BAR ──────────────────────────────────────── */

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 24px;
  align-items: center;
}

.filter-btn {
  font-family: 'Inter', sans-serif;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 7px 14px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-dim);
  cursor: pointer;
  transition: all 0.2s;
}

.filter-btn:hover {
  border-color: var(--teal-border);
  color: var(--text);
}

.filter-btn.active {
  border-color: var(--teal);
  background: var(--teal-glow);
  color: var(--teal);
}

.search-input {
  flex: 1;
  min-width: 200px;
  padding: 8px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--card);
  color: #fff;
  font-family: 'Inter', sans-serif;
  font-size: 0.82rem;
  outline: none;
  transition: border-color 0.2s;
}

.search-input:focus {
  border-color: var(--teal);
  box-shadow: 0 0 0 3px var(--teal-glow);
}

.search-input::placeholder { color: #444; }

/* ── FOOTER ──────────────────────────────────────────── */

.site-footer {
  text-align: center;
  padding: 24px;
  border-top: 1px solid var(--border);
  margin-top: 40px;
}

.site-footer a { text-decoration: none; }

.site-footer .handle {
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--teal);
  transition: color 0.2s;
}

.site-footer a:hover .handle { color: var(--teal-hover); }

.site-footer .tagline {
  font-size: 0.72rem;
  color: #444;
  margin-top: 4px;
}

.site-footer .footer-note {
  font-size: 0.65rem;
  color: #333;
  margin-top: 12px;
  line-height: 1.5;
}

/* ── RESPONSIVE ──────────────────────────────────────── */

@media (max-width: 640px) {
  .nav-links { display: none; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 56px;
    left: 0;
    right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    padding: 12px 24px 16px;
    gap: 4px;
  }
  .nav-toggle { display: block; }
  .peptide-grid { grid-template-columns: 1fr; }
  .page-wrap, .page-narrow { padding: 32px 16px; }
  .hero { padding: 32px 0 24px; }
  .hero h1 { font-size: clamp(1.6rem, 5vw, 2rem); }
  .form-card { padding: 22px 18px; }
}

@media (max-width: 420px) {
  .ency-badge-row { gap: 6px; }
  .data-table { font-size: 0.75rem; }
  .data-table th, .data-table td { padding: 10px 12px; }
}