/* ═══════════════════════════════════════════
   PeptideDataSource — styles.css
   ═══════════════════════════════════════════ */

/* ─── VARIABLES ─── */
:root {
  --ink:        #2b2a2e;
  --navy:       #222754;
  --sky:        #5ab8ff;
  --mist:       #d7e3ff;
  --neon:       #4afbff;
  --white:      #ffffff;
  --bg:         #ffffff;
  --card-bg:    #f7f9ff;
  --border:     rgba(34,39,84,.10);
  --radius:     14px;
  --transition: .3s cubic-bezier(.4,0,.2,1);
}

/* ─── RESET ─── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: 'Montserrat', sans-serif;
  font-size: 15px;
  line-height: 1.65;
  overflow-x: hidden;
}

/* ─── NAVBAR ─── */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 40px;
  height: 64px;
  background: rgba(255,255,255,.88);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border);
}
.nav-logo {
  font-family: 'Montserrat', sans-serif;
  font-weight: 800;
  font-size: 1.1rem;
  color: var(--navy);
  letter-spacing: -.01em;
  display: flex; align-items: center; gap: 10px;
  text-decoration: none;
}
.nav-logo img.logo-icon {
  width: 32px; height: 32px;
  object-fit: contain;
  display: block;
  filter: drop-shadow(0 0 6px rgba(74,251,255,.35));
}
.nav-links { display: flex; gap: 6px; list-style: none; }
.nav-links a {
  color: var(--ink);
  font-size: 1rem; font-weight: 600;
  text-decoration: none;
  padding: 7px 16px;
  border-radius: 8px;
  position: relative;
  transition: color .2s ease, background .2s ease, box-shadow .2s ease;
}
.nav-links a::after {
  content: '';
  position: absolute; bottom: 4px; left: 16px; right: 16px;
  height: 2px; border-radius: 2px;
  background: linear-gradient(90deg, var(--sky), var(--neon));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .25s cubic-bezier(.4,0,.2,1);
}
.nav-links a:hover {
  color: var(--navy);
  background: var(--mist);
  box-shadow: 0 2px 12px rgba(90,184,255,.18);
}
.nav-links a:hover::after { transform: scaleX(1); }

.nav-search {
  display: flex; align-items: center;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  padding: 6px 14px;
  gap: 8px;
  background: var(--card-bg);
}
.nav-search input {
  border: none; background: transparent;
  font-family: 'Montserrat', sans-serif;
  font-size: .85rem; color: var(--ink);
  outline: none; width: 200px;
}
.nav-search input::placeholder { color: #aab; }
.nav-search svg { color: #aab; flex-shrink: 0; }

/* ─── HERO ─── */
.hero {
  padding: 140px 40px 80px;
  position: relative;
  overflow: hidden;
}
.hero-grid-bg {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(90,184,255,.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(90,184,255,.06) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
}
.hero-glow {
  position: absolute; top: -60px; right: -80px;
  width: 600px; height: 600px; border-radius: 50%;
  background: radial-gradient(circle, rgba(74,251,255,.12) 0%, transparent 70%);
  pointer-events: none;
}
.hero-inner { max-width: 780px; position: relative; }

@keyframes pulse {
  0%,100% { opacity: 1; transform: scale(1); }
  50% { opacity: .4; transform: scale(.8); }
}

h1 {
  font-family: 'Montserrat', sans-serif;
  font-size: clamp(2.4rem, 5vw, 3.8rem);
  font-weight: 600;
  line-height: 1.05;
  color: var(--navy);
  letter-spacing: -.02em;
  margin-bottom: 20px;
}
h1 em {
  font-style: normal;
  background: linear-gradient(135deg, var(--sky) 0%, var(--neon) 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-sub {
  font-size: 1.05rem; color: #555; max-width: 520px;
  margin-bottom: 36px; font-weight: 300;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

.btn-primary {
  background: var(--navy);
  color: #fff;
  padding: 12px 26px;
  border-radius: 10px;
  font-family: 'Montserrat', sans-serif;
  font-size: .9rem; font-weight: 500;
  text-decoration: none;
  display: inline-flex; align-items: center; gap: 8px;
  transition: background var(--transition), transform var(--transition);
}
.btn-primary:hover { background: #1a1e45; transform: translateY(-1px); }

.btn-secondary {
  background: transparent;
  color: var(--navy);
  border: 1.5px solid var(--border);
  padding: 12px 26px;
  border-radius: 10px;
  font-family: 'Montserrat', sans-serif;
  font-size: .9rem; font-weight: 500;
  text-decoration: none;
  display: inline-flex; align-items: center; gap: 8px;
  transition: border-color var(--transition), background var(--transition);
}
.btn-secondary:hover { border-color: var(--sky); background: var(--mist); }

/* ─── SECTION WRAPPER ─── */
.section { padding: 80px 40px; }
.section-max { max-width: 1160px; margin: 0 auto; }

.section-label {
  font-family: 'DM Mono', monospace;
  font-size: .72rem; letter-spacing: .1em;
  color: var(--sky); text-transform: uppercase;
  margin-bottom: 10px;
}
h2 {
  font-family: 'Montserrat', sans-serif;
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 600; color: var(--navy);
  letter-spacing: -.015em;
  margin-bottom: 12px;
}
.section-desc {
  color: #666; font-weight: 300;
  font-size: .95rem; max-width: 540px;
  margin-bottom: 48px;
}

/* ─── CATEGORY TABS ─── */
.cat-tabs {
  display: flex; gap: 8px; flex-wrap: wrap;
  margin-bottom: 40px;
}
.cat-tab {
  padding: 8px 18px; border-radius: 100px;
  font-size: .82rem; font-weight: 500;
  cursor: pointer; border: 1.5px solid var(--border);
  background: var(--white); color: #555;
  transition: all var(--transition);
  font-family: 'Montserrat', sans-serif;
}
.cat-tab:hover { border-color: var(--sky); color: var(--navy); background: var(--mist); }
.cat-tab.active {
  background: var(--navy); color: #fff;
  border-color: var(--navy);
}

/* ─── PEPTIDE GRID ─── */
.peptide-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}
.peptide-card {
  background: var(--card-bg);
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  cursor: pointer;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
  position: relative;
  overflow: hidden;
}
.peptide-card::before {
  content: '';
  position: absolute; top: 0; left: 0;
  width: 3px; height: 100%;
  background: linear-gradient(to bottom, var(--sky), var(--neon));
  opacity: 0;
  transition: opacity var(--transition);
}
.peptide-card:hover {
  border-color: rgba(90,184,255,.4);
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(34,39,84,.08);
}
.peptide-card:hover::before { opacity: 1; }

.card-cat {
  font-family: 'DM Mono', monospace;
  font-size: .68rem; letter-spacing: .08em;
  color: var(--sky); text-transform: uppercase;
  margin-bottom: 10px;
}
.card-name {
  font-family: 'Montserrat', sans-serif;
  font-size: 1.15rem; font-weight: 600;
  color: var(--navy); margin-bottom: 6px;
}
.card-aka {
  font-family: 'DM Mono', monospace;
  font-size: .73rem; color: #999;
  margin-bottom: 12px;
}
.card-desc {
  font-size: .85rem; color: #555;
  line-height: 1.6; margin-bottom: 16px;
}
.card-tags {
  display: flex; flex-wrap: wrap; gap: 6px;
}
.tag {
  background: var(--mist);
  color: var(--navy);
  font-size: .72rem; font-weight: 500;
  padding: 3px 10px; border-radius: 100px;
  border: 1px solid rgba(90,184,255,.2);
}

/* ─── MODAL ─── */
.modal-overlay {
  display: none; position: fixed; inset: 0; z-index: 200;
  background: rgba(34,39,84,.45);
  backdrop-filter: blur(6px);
  align-items: center; justify-content: center;
  padding: 20px;
}
.modal-overlay.open { display: flex; }
.modal {
  background: var(--white);
  border-radius: 20px;
  max-width: 680px; width: 100%;
  max-height: 88vh; overflow-y: auto;
  padding: 40px;
  position: relative;
  animation: modalIn .3s cubic-bezier(.34,1.56,.64,1);
}
@keyframes modalIn {
  from { opacity: 0; transform: scale(.92) translateY(20px); }
  to   { opacity: 1; transform: scale(1) translateY(0); }
}
.modal-close {
  position: absolute; top: 18px; right: 18px;
  width: 36px; height: 36px; border-radius: 50%;
  border: 1.5px solid var(--border);
  background: var(--card-bg);
  display: flex; align-items: center; justify-content: center;
  cursor: pointer; font-size: 1.1rem; color: #888;
  transition: all var(--transition);
}
.modal-close:hover { background: var(--mist); color: var(--navy); }
.modal-badge {
  display: inline-block;
  font-family: 'DM Mono', monospace;
  font-size: .7rem; letter-spacing: .08em;
  color: var(--sky); text-transform: uppercase;
  background: var(--mist);
  padding: 4px 12px; border-radius: 100px;
  margin-bottom: 16px;
}
.modal h3 {
  font-family: 'Montserrat', sans-serif;
  font-size: 1.8rem; font-weight: 600;
  color: var(--navy); margin-bottom: 4px;
}
.modal-aka {
  font-family: 'DM Mono', monospace;
  font-size: .78rem; color: #aaa;
  margin-bottom: 20px;
}
.modal-section-title {
  font-family: 'Montserrat', sans-serif;
  font-size: .85rem; font-weight: 700;
  color: var(--navy); text-transform: uppercase;
  letter-spacing: .05em; margin: 24px 0 10px;
  display: flex; align-items: center; gap: 8px;
}
.modal-section-title::after {
  content: ''; flex: 1; height: 1px; background: var(--border);
}
.modal p { font-size: .9rem; color: #555; line-height: 1.7; }
.modal ul { padding-left: 18px; }
.modal ul li { font-size: .88rem; color: #555; margin-bottom: 6px; line-height: 1.6; }

.dosage-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 12px; margin-top: 10px;
}
.dosage-item {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 10px; padding: 14px 16px;
}
.dosage-label { font-size: .72rem; color: #999; margin-bottom: 4px; font-family: 'DM Mono', monospace; }
.dosage-val { font-size: .95rem; font-weight: 600; color: var(--navy); }

.modal-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; }

.disclaimer-box {
  margin-top: 28px;
  background: rgba(90,184,255,.07);
  border: 1px solid rgba(90,184,255,.2);
  border-radius: 10px; padding: 14px 18px;
  font-size: .8rem; color: #666; line-height: 1.6;
}

/* ─── CATEGORIES OVERVIEW ─── */
.categories-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 16px;
}
.cat-card {
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  background: var(--card-bg);
  cursor: pointer;
  transition: all var(--transition);
  text-align: left;
}
.cat-card:hover {
  border-color: var(--sky);
  background: var(--mist);
  transform: translateY(-2px);
}
.cat-icon {
  width: 44px; height: 44px; border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem; margin-bottom: 14px;
}
.cat-card-name {
  font-family: 'Montserrat', sans-serif;
  font-weight: 700; font-size: .95rem;
  color: var(--navy); margin-bottom: 6px;
}
.cat-card-count {
  font-size: .78rem; color: #999;
  font-family: 'DM Mono', monospace;
}

/* ─── HOW TO READ ─── */
.howto-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 20px;
}
.howto-card {
  background: var(--navy);
  border-radius: var(--radius); padding: 28px 24px;
  color: #fff;
}
.howto-num {
  font-family: 'Montserrat', sans-serif;
  font-size: 2.4rem; font-weight: 800;
  color: rgba(74,251,255,.25); line-height: 1;
  margin-bottom: 16px;
}
.howto-title {
  font-family: 'Montserrat', sans-serif;
  font-size: 1rem; font-weight: 700;
  color: #fff; margin-bottom: 8px;
}
.howto-desc { font-size: .85rem; color: rgba(255,255,255,.6); line-height: 1.6; }

/* ─── DIVIDER ─── */
.divider {
  height: 1px; background: var(--border);
  margin: 0 40px;
}

/* ─── FOOTER ─── */
footer {
  padding: 40px;
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 20px;
  border-top: 1px solid var(--border);
}
.footer-brand {
  font-family: 'Montserrat', sans-serif;
  font-weight: 800; color: var(--navy);
  font-size: .95rem;
}
.footer-note { font-size: .78rem; color: #aaa; max-width: 480px; }

/* ─── UTILITIES ─── */
.hidden { display: none !important; }
mark { background: rgba(74,251,255,.3); color: inherit; border-radius: 2px; }

/* ─── HAMBURGER BUTTON ─── */
.nav-hamburger {
  display: none;
  flex-direction: column; justify-content: center; align-items: center;
  gap: 5px;
  width: 40px; height: 40px;
  background: none; border: none;
  cursor: pointer; padding: 4px;
  border-radius: 8px;
  transition: background var(--transition);
}
.nav-hamburger:hover { background: var(--mist); }
.nav-hamburger span {
  display: block; width: 22px; height: 2px;
  background: var(--navy); border-radius: 2px;
  transition: transform .3s ease, opacity .3s ease, width .3s ease;
}
.nav-hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; width: 0; }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ─── MOBILE DRAWER ─── */
.mobile-drawer {
  display: none;
  position: fixed; top: 64px; left: 0; right: 0;
  background: rgba(255,255,255,.97);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  z-index: 99;
  flex-direction: column;
  padding: 16px 20px 24px;
  gap: 4px;
  transform: translateY(-10px);
  opacity: 0;
  transition: transform .25s ease, opacity .25s ease;
  pointer-events: none;
}
.mobile-drawer.open {
  display: flex;
  transform: translateY(0);
  opacity: 1;
  pointer-events: all;
}
.mobile-drawer a {
  font-family: 'Montserrat', sans-serif;
  font-size: 1.05rem; font-weight: 600;
  color: var(--navy); text-decoration: none;
  padding: 12px 16px; border-radius: 10px;
  transition: background var(--transition);
  border-left: 3px solid transparent;
}
.mobile-drawer a:hover,
.mobile-drawer a.active {
  background: var(--mist);
  border-left-color: var(--sky);
}

/* ─── FLOATING SEARCH BUTTON ─── */
.fab-search {
  display: none;
  position: fixed; bottom: 24px; right: 24px; z-index: 200;
  width: 52px; height: 52px;
  border-radius: 50%;
  background: var(--navy);
  border: none; cursor: pointer;
  box-shadow: 0 4px 20px rgba(34,39,84,.3), 0 0 0 0 rgba(74,251,255,.4);
  align-items: center; justify-content: center;
  transition: transform .2s ease, box-shadow .2s ease;
  animation: fabPulse 3s infinite;
}
.fab-search:hover {
  transform: scale(1.08);
  box-shadow: 0 6px 28px rgba(34,39,84,.4), 0 0 0 8px rgba(74,251,255,.12);
}
.fab-search svg { color: #fff; }
@keyframes fabPulse {
  0%,100% { box-shadow: 0 4px 20px rgba(34,39,84,.3), 0 0 0 0 rgba(74,251,255,.3); }
  50%      { box-shadow: 0 4px 20px rgba(34,39,84,.3), 0 0 0 10px rgba(74,251,255,.0); }
}

/* ─── FLOATING SEARCH PANEL ─── */
.fab-search-panel {
  display: none;
  position: fixed; bottom: 88px; right: 20px; z-index: 200;
  width: calc(100vw - 40px); max-width: 380px;
  background: var(--white);
  border: 1.5px solid var(--border);
  border-radius: 16px;
  box-shadow: 0 12px 40px rgba(34,39,84,.15);
  padding: 16px 18px;
  flex-direction: column; gap: 10px;
  transform: scale(.94) translateY(10px);
  opacity: 0;
  transition: transform .25s ease, opacity .25s ease;
  pointer-events: none;
}
.fab-search-panel.open {
  display: flex;
  transform: scale(1) translateY(0);
  opacity: 1;
  pointer-events: all;
}
.fab-search-panel label {
  font-family: 'DM Mono', monospace;
  font-size: .68rem; letter-spacing: .1em;
  color: var(--sky); text-transform: uppercase;
}
.fab-search-panel input {
  width: 100%; border: 1.5px solid var(--border);
  border-radius: 10px; padding: 11px 16px;
  font-family: 'Montserrat', sans-serif;
  font-size: .95rem; color: var(--ink);
  outline: none; background: var(--card-bg);
  transition: border-color var(--transition);
}
.fab-search-panel input:focus { border-color: var(--sky); }
.fab-search-panel input::placeholder { color: #bbc; }
.fab-search-results {
  font-size: .82rem; color: #888;
  font-family: 'DM Mono', monospace;
  min-height: 18px;
}

/* ─── RESPONSIVE ─── */
@media (max-width: 768px) {
  nav { padding: 0 18px; }
  nav .nav-links  { display: none; }
  nav .nav-search { display: none; }
  .nav-hamburger  { display: flex; }
  .fab-search     { display: flex; }

  .hero { padding: 110px 24px 60px; text-align: center; }
  .hero-inner { margin: 0 auto; }
  .hero-actions { justify-content: center; }
  h1 { font-size: clamp(2rem, 8vw, 3rem); }
  .hero-sub { margin-left: auto; margin-right: auto; }

  .section { padding: 56px 20px; }
  .divider { margin: 0 20px; }
  footer { padding: 28px 20px; flex-direction: column; align-items: flex-start; }
  .dosage-grid { grid-template-columns: 1fr; }
}