/* ══════════════════════════════════════════════════════════
   AImedicina — Main Styles
   ══════════════════════════════════════════════════════════ */

/* ─── Variables ──────────────────────────────────────────── */
:root {
  --primary:    #2563eb;
  --primary-d:  #1d4ed8;
  --secondary:  #06b6d4;
  --accent:     #7c3aed;
  --success:    #10b981;
  --warning:    #f59e0b;
  --danger:     #ef4444;

  --bg:         #f0f7ff;
  --bg-card:    #ffffff;
  --bg-header:  rgba(255,255,255,0.85);

  --text:       #0f172a;
  --text-muted: #64748b;
  --text-light: #94a3b8;

  --border:     #e2e8f0;
  --border-focus: #2563eb;

  --shadow-sm:  0 1px 3px rgba(0,0,0,.08);
  --shadow:     0 4px 20px rgba(37,99,235,.10);
  --shadow-lg:  0 8px 40px rgba(37,99,235,.18);

  --radius:     12px;
  --radius-sm:  8px;
  --radius-lg:  20px;

  --font: 'Inter', system-ui, -apple-system, sans-serif;
  --transition: .2s ease;
}

/* ─── Reset ──────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
img { max-width: 100%; display: block; }
a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-d); }
ul { list-style: none; }

/* ─── Typography ─────────────────────────────────────────── */
h1 { font-size: clamp(1.8rem, 4vw, 2.8rem); font-weight: 800; line-height: 1.2; }
h2 { font-size: clamp(1.4rem, 3vw, 2rem);   font-weight: 700; background: linear-gradient(135deg, #1e3a8a, #0e7490); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
h3 { font-size: 1.2rem; font-weight: 600; }
h4 { font-size: 1rem;   font-weight: 600; }

/* ─── Layout ─────────────────────────────────────────────── */
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.section    { padding: 64px 0; }
.section-sm { padding: 24px 0; }
main { flex: 1; }

/* ─── Animated Logo ──────────────────────────────────────── */
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  user-select: none;
}
.logo-icon {
  width: 40px; height: 40px;
  position: relative;
  flex-shrink: 0;
}
.logo-icon svg { width: 100%; height: 100%; }

/* EKG pulse path animation */
.ekg-path {
  stroke-dasharray: 120;
  stroke-dashoffset: 120;
  animation: ekg-draw 2s ease forwards, ekg-pulse 4s ease 2s infinite;
}
@keyframes ekg-draw {
  to { stroke-dashoffset: 0; }
}
@keyframes ekg-pulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.4; }
}

/* Circle rings pulse */
.logo-ring {
  animation: ring-pulse 3s ease-in-out infinite;
  transform-origin: center;
}
.logo-ring:nth-child(2) { animation-delay: .5s; }
.logo-ring:nth-child(3) { animation-delay: 1s; }
@keyframes ring-pulse {
  0%, 100% { transform: scale(1);   opacity: .6; }
  50%       { transform: scale(1.1); opacity: 1;  }
}

.logo-text-wrap { display: flex; flex-direction: column; line-height: 1; }
.logo-ai {
  font-size: 1.5rem;
  font-weight: 900;
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -1px;
}
.logo-medicina {
  font-size: .65rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 3px;
  margin-top: -2px;
}

/* ─── Header ─────────────────────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg-header);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow var(--transition);
}
.site-header.scrolled { box-shadow: var(--shadow); }

.header-inner {
  display: flex;
  align-items: center;
  gap: 24px;
  height: 70px;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: 16px;
}
.main-nav a {
  padding: 7px 14px;
  border-radius: var(--radius-sm);
  font-size: .9rem;
  text-decoration: underline;
  text-underline-offset: 3px;
  font-weight: 500;
  color: var(--text-muted);
  transition: background var(--transition), color var(--transition);
}
.main-nav a:hover, .main-nav a.active {
  background: rgba(37,99,235,.08);
  color: var(--primary);
}

.header-actions { margin-left: auto; display: flex; align-items: center; gap: 12px; }

/* Search trigger button */
.btn-search-trigger {
  display: flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  border: none;
  border-radius: 50px;
  padding: 10px 22px;
  font-size: .9rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition);
  box-shadow: 0 4px 15px rgba(37,99,235,.35);
  position: relative;
  overflow: hidden;
}
.btn-search-trigger::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--secondary), var(--primary));
  opacity: 0;
  transition: opacity var(--transition);
}
.btn-search-trigger:hover::before { opacity: 1; }
.btn-search-trigger span, .btn-search-trigger svg { position: relative; z-index: 1; }
.btn-search-trigger:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(37,99,235,.45);
}
.btn-search-trigger:active { transform: translateY(0); }

/* pulse dot on search btn */
.btn-search-trigger .pulse-dot {
  width: 8px; height: 8px;
  background: #fff;
  border-radius: 50%;
  animation: dot-pulse 2s ease-in-out infinite;
}
@keyframes dot-pulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50%       { transform: scale(1.5); opacity: .6; }
}

/* burger */
.burger { display: none; background: none; border: none; cursor: pointer; padding: 4px; }
.burger span {
  display: block; width: 24px; height: 2px;
  background: var(--text);
  margin: 5px 0;
  border-radius: 2px;
  transition: var(--transition);
}

/* ─── Buttons ────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 22px;
  border-radius: var(--radius-sm);
  font-size: .9rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 2px 8px rgba(37,99,235,.3);
}
.btn-primary:hover { background: var(--primary-d); transform: translateY(-1px); box-shadow: 0 4px 14px rgba(37,99,235,.4); color: #fff; }
.btn-outline {
  background: transparent;
  color: var(--primary);
  border: 1.5px solid var(--primary);
}
.btn-outline:hover { background: rgba(37,99,235,.06); color: var(--primary); }
.btn-ghost {
  background: transparent;
  color: var(--text-muted);
}
.btn-ghost:hover { background: var(--border); color: var(--text); }
.btn-sm { padding: 6px 14px; font-size: .82rem; }
.btn-lg { padding: 14px 32px; font-size: 1rem; }

/* ─── Hero (full-screen with search) ────────────────────── */
.hero-full {
  position: relative;
  min-height: 540px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: linear-gradient(145deg, #0f172a 0%, #1e3a8a 50%, #0e7490 100%);
  padding: 80px 0 72px;
}

/* Animated canvas particles */
.hero-canvas {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  pointer-events: none;
  z-index: 0;
  opacity: .6;
}

/* Glowing orbs */
.hero-orb {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  z-index: 0;
  filter: blur(80px);
}
.hero-orb-1 {
  width: 500px; height: 500px;
  top: -150px; right: -100px;
  background: radial-gradient(circle, rgba(6,182,212,.35) 0%, transparent 70%);
  animation: orb-drift 12s ease-in-out infinite;
}
.hero-orb-2 {
  width: 400px; height: 400px;
  bottom: -120px; left: -80px;
  background: radial-gradient(circle, rgba(37,99,235,.4) 0%, transparent 70%);
  animation: orb-drift 16s ease-in-out infinite reverse;
}
.hero-orb-3 {
  width: 300px; height: 300px;
  top: 50%; left: 50%;
  transform: translate(-50%,-50%);
  background: radial-gradient(circle, rgba(124,58,237,.2) 0%, transparent 70%);
  animation: orb-drift 10s ease-in-out infinite 3s;
}
@keyframes orb-drift {
  0%, 100% { transform: translate(0,0) scale(1); }
  33%       { transform: translate(40px,-30px) scale(1.1); }
  66%       { transform: translate(-20px,20px) scale(.95); }
}

/* Centered content */
.hero-centered {
  position: relative;
  z-index: 1;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255,255,255,.1);
  color: rgba(255,255,255,.9);
  border: 1px solid rgba(255,255,255,.2);
  border-radius: 50px;
  padding: 5px 16px;
  font-size: .8rem;
  font-weight: 600;
  margin-bottom: 24px;
  letter-spacing: .5px;
  backdrop-filter: blur(10px);
}
.hero-badge .dot {
  width: 7px; height: 7px;
  background: #34d399;
  border-radius: 50%;
  animation: dot-pulse 2s infinite;
  box-shadow: 0 0 6px #34d399;
}

.hero-title {
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  font-weight: 900;
  color: #fff;
  line-height: 1.15;
  margin-bottom: 18px;
  letter-spacing: -1px;
}
.hero-title .gradient-text {
  background: linear-gradient(135deg, #67e8f9, #a78bfa);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  font-size: 1.05rem;
  color: rgba(255,255,255,.7);
  margin-bottom: 40px;
  max-width: 520px;
  line-height: 1.7;
}

/* ─── Hero search form ───────────────────────────────────── */
.hero-search-form { width: 100%; max-width: 620px; margin-bottom: 36px; }

.hero-search-wrap {
  display: flex;
  align-items: center;
  background: rgba(255,255,255,.97);
  border-radius: 60px;
  box-shadow: 0 8px 40px rgba(0,0,0,.3), 0 0 0 1px rgba(255,255,255,.15);
  overflow: hidden;
  transition: box-shadow .25s;
}
.hero-search-wrap:focus-within {
  box-shadow: 0 8px 40px rgba(0,0,0,.35), 0 0 0 3px rgba(6,182,212,.5);
}

.hero-search-icon {
  padding: 0 4px 0 22px;
  color: var(--text-light);
  flex-shrink: 0;
  display: flex;
  align-items: center;
}
.hero-search-input {
  flex: 1;
  height: 60px;
  border: none;
  outline: none;
  font-family: var(--font);
  font-size: 1rem;
  color: var(--text);
  background: transparent;
  padding: 0 14px;
}
.hero-search-input::placeholder { color: var(--text-light); }

.hero-search-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 5px;
  padding: 0 24px;
  height: 50px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  border: none;
  border-radius: 50px;
  font-family: var(--font);
  font-size: .95rem;
  font-weight: 700;
  cursor: pointer;
  transition: transform .2s, box-shadow .2s, opacity .2s;
  white-space: nowrap;
  box-shadow: 0 4px 14px rgba(37,99,235,.4);
}
.hero-search-btn:hover {
  transform: scale(1.03);
  box-shadow: 0 6px 20px rgba(37,99,235,.5);
}
.hero-search-btn:active { transform: scale(.99); }
.hero-search-btn.loading { opacity: .7; pointer-events: none; }

.hero-search-hints {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 14px;
  font-size: .8rem;
  color: rgba(255,255,255,.5);
}
.hero-hint-tag {
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.2);
  color: rgba(255,255,255,.8);
  border-radius: 50px;
  padding: 3px 12px;
  font-size: .78rem;
  font-weight: 500;
  cursor: pointer;
  transition: background .15s;
  font-family: var(--font);
}
.hero-hint-tag:hover { background: rgba(255,255,255,.2); color: #fff; }

/* ─── Hero stats ─────────────────────────────────────────── */
.hero-stats {
  display: flex;
  align-items: center;
  gap: 0;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 60px;
  padding: 14px 32px;
  backdrop-filter: blur(10px);
  flex-wrap: wrap;
  justify-content: center;
}
.hero-stat-item { text-align: center; padding: 0 20px; }
.hero-stat-num {
  font-size: 1.8rem;
  font-weight: 900;
  color: #fff;
  display: block;
  line-height: 1.1;
  letter-spacing: -1px;
}
.hero-stat-label { font-size: .72rem; color: rgba(255,255,255,.55); font-weight: 500; text-transform: uppercase; letter-spacing: .8px; }
.hero-stat-sep { width: 1px; height: 40px; background: rgba(255,255,255,.15); flex-shrink: 0; }

/* Keep old classes for other pages */
.hero { padding: 80px 0 64px; position: relative; overflow: hidden; }
.hero-content { position: relative; z-index: 1; max-width: 640px; }

/* floating cards (kept for compat) */
.hero-visual { display: none; }
.hero-card-float { display: none; }
@keyframes float-up {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-10px); }
}

/* ─── Section Headers ────────────────────────────────────── */
.section-header {
  text-align: center;
  margin-bottom: 48px;
}
.section-header h2 { margin-bottom: 10px; }
.section-header p { color: var(--text-muted); font-size: 1.05rem; }
.section-tag {
  display: inline-block;
  background: rgba(37,99,235,.1);
  color: var(--primary);
  border-radius: 50px;
  padding: 3px 12px;
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 10px;
}

/* ─── Cards ──────────────────────────────────────────────── */
.card {
  background: var(--bg-card);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  overflow: hidden;
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(37,99,235,.2);
}
.card-body { padding: 24px; }

/* Category cards */
.categories-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 20px;
}
.category-card {
  display: block;
  text-decoration: none;
  background: var(--bg-card);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  padding: 24px 20px;
  text-align: center;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.category-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  transform: scaleX(0);
  transition: transform var(--transition);
}
.category-card:hover::before { transform: scaleX(1); }
.category-card:hover {
  border-color: rgba(37,99,235,.25);
  box-shadow: var(--shadow);
  transform: translateY(-4px);
}
.category-icon {
  font-size: 2.2rem;
  margin-bottom: 12px;
  display: block;
}
.category-name {
  display: inline-block;
  font-size: .8rem;
  font-weight: 700;
  color: #2563eb;
  background: rgba(37,99,235,.1);
  border: 1px solid rgba(37,99,235,.2);
  padding: 3px 12px;
  border-radius: 20px;
  margin-bottom: 8px;
}
.category-desc {
  font-size: .8rem;
  color: var(--text-muted);
  line-height: 1.4;
}
.category-count {
  display: inline-block;
  margin-top: 10px;
  background: var(--bg);
  color: var(--text-muted);
  border: 1px solid var(--border);
  font-size: .75rem;
  font-weight: 500;
  padding: 2px 10px;
  border-radius: 50px;
}

/* Drug cards */
.drugs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}
.drug-card {
  display: block;
  text-decoration: none;
  background: var(--bg-card);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  padding: 20px;
  transition: all var(--transition);
}
.drug-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow);
  border-color: rgba(37,99,235,.2);
}
.drug-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 10px;
}
.drug-card-name {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.drug-card-cat {
  font-size: .72rem;
  background: rgba(6,182,212,.1);
  color: var(--secondary);
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 50px;
  white-space: nowrap;
  flex-shrink: 0;
}
.drug-card-desc {
  font-size: .85rem;
  color: var(--text-muted);
  line-height: 1.5;
  margin-bottom: 14px;
}
.drug-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}
.drug-card-count {
  font-size: .78rem;
  color: var(--text-light);
  display: flex;
  align-items: center;
  gap: 4px;
}

/* ─── Drug Detail Page ───────────────────────────────────── */
.drug-hero {
  background: linear-gradient(135deg, #f0f7ff 0%, #e0f2fe 100%);
  padding: 48px 0 40px;
  border-bottom: 1px solid var(--border);
}
.drug-hero-inner { display: flex; align-items: flex-start; gap: 32px; }
.drug-hero-icon {
  width: 80px; height: 80px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.2rem;
  flex-shrink: 0;
  box-shadow: 0 8px 24px rgba(37,99,235,.3);
}
.drug-hero-info { flex: 1; }
.drug-category-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(37,99,235,.1);
  color: var(--primary);
  border-radius: 50px;
  padding: 4px 14px;
  font-size: .8rem;
  font-weight: 600;
  margin-bottom: 12px;
  text-decoration: none;
}
.drug-category-badge:hover { background: rgba(37,99,235,.18); color: var(--primary); }

.drug-sections { padding: 40px 0; }
.drug-sections-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 28px;
}
.drug-section {
  background: var(--bg-card);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  padding: 14px 20px 18px;
  margin-bottom: 0;
}
.drug-section-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}
.drug-section-icon {
  width: 32px; height: 32px;
  background: rgba(37,99,235,.1);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  flex-shrink: 0;
}
.drug-section p { font-size: .9rem; color: var(--text-muted); line-height: 1.7; }

.drug-sidebar { display: flex; flex-direction: column; gap: 20px; }

.drug-symptoms-list {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: 8px;
  margin-top: 8px;
}
.tag {
  display: inline-block;
  padding: 5px 12px;
  border-radius: 50px;
  font-size: .8rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
}
.tag-symptom {
  background: rgba(6,182,212,.1);
  color: var(--secondary);
  border: 1px solid rgba(6,182,212,.2);
}
.tag-symptom:hover { background: rgba(6,182,212,.2); color: var(--secondary); }
.tag-disease {
  background: rgba(124,58,237,.1);
  color: var(--accent);
  border: 1px solid rgba(124,58,237,.2);
}
.tag-disease:hover { background: rgba(124,58,237,.2); color: var(--accent); }

.disclaimer {
  background: rgba(245,158,11,.08);
  border: 1px solid rgba(245,158,11,.25);
  border-radius: var(--radius);
  padding: 16px 20px;
  font-size: .82rem;
  color: var(--text-muted);
  display: flex;
  gap: 10px;
  align-items: flex-start;
}
.disclaimer-icon { font-size: 1.2rem; flex-shrink: 0; }

/* ─── Symptoms cloud ─────────────────────────────────────── */
.symptoms-cloud {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: center;
  gap: 10px;
  padding: 8px 0;
}
.symptom-tag {
  display: inline-block;
  padding: 8px 16px;
  border-radius: 50px;
  font-size: .875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
  border: 1.5px solid;
  text-decoration: none;
}
.symptom-tag.type-symptom {
  background: rgba(6,182,212,.08);
  color: #0891b2;
  border-color: rgba(6,182,212,.3);
}
.symptom-tag.type-symptom:hover {
  background: rgba(6,182,212,.18);
  transform: scale(1.04);
  box-shadow: 0 3px 10px rgba(6,182,212,.2);
}
.symptom-tag.type-disease {
  background: rgba(124,58,237,.08);
  color: #6d28d9;
  border-color: rgba(124,58,237,.3);
}
.symptom-tag.type-disease:hover {
  background: rgba(124,58,237,.18);
  transform: scale(1.04);
  box-shadow: 0 3px 10px rgba(124,58,237,.2);
}
/* varying sizes based on popularity */
.symptom-tag.size-lg { font-size: 1rem; padding: 10px 20px; }
.symptom-tag.size-md { font-size: .875rem; }
.symptom-tag.size-sm { font-size: .78rem; padding: 6px 12px; }

/* ─── Search Modal ───────────────────────────────────────── */
.search-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15,23,42,.65);
  backdrop-filter: blur(6px);
  z-index: 1000;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 80px 20px 20px;
  opacity: 0;
  visibility: hidden;
  transition: opacity .25s ease, visibility .25s ease;
}
.search-modal-overlay.active {
  opacity: 1;
  visibility: visible;
}
.search-modal {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 680px;
  max-height: calc(100vh - 120px);
  display: flex;
  flex-direction: column;
  box-shadow: 0 25px 80px rgba(15,23,42,.3);
  overflow: hidden;
  transform: translateY(-20px) scale(.97);
  transition: transform .25s ease;
}
.search-modal-overlay.active .search-modal {
  transform: translateY(0) scale(1);
}

.search-modal-header {
  padding: 28px 28px 20px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
}
.search-modal-header h3 {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-size: 1.2rem;
}
.search-close {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
  padding: 6px;
  border-radius: 8px;
  transition: background var(--transition);
  line-height: 0;
}
.search-close:hover { background: var(--border); }

.search-form-wrap {
  padding: 24px 28px;
}
.search-form-wrap.hidden { display: none; }
.search-input-group {
  display: flex;
  gap: 12px;
  align-items: center;
}
.search-input {
  flex: 1;
  height: 52px;
  border: 2px solid var(--border);
  border-radius: 50px;
  padding: 0 20px;
  font-size: 1rem;
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.search-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(37,99,235,.12);
}
.search-input::placeholder { color: var(--text-light); }
.search-submit {
  height: 52px;
  width: 52px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  transition: transform var(--transition), box-shadow var(--transition);
  flex-shrink: 0;
  box-shadow: 0 4px 12px rgba(37,99,235,.35);
}
.search-submit:hover {
  transform: scale(1.08);
  box-shadow: 0 6px 18px rgba(37,99,235,.45);
}
.search-len-warning {
  margin-top: 8px;
  padding: 8px 12px;
  background: rgba(239,68,68,.08);
  border: 1px solid rgba(239,68,68,.25);
  border-radius: 8px;
  font-size: .82rem;
  color: #dc2626;
  line-height: 1.4;
}
.search-hint {
  font-size: .8rem;
  color: var(--text-light);
  margin-top: 10px;
  padding: 0 4px;
}
.search-examples { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 14px; }
.search-example-tag {
  padding: 4px 12px;
  background: rgba(37,99,235,.07);
  color: var(--primary);
  border-radius: 50px;
  font-size: .8rem;
  font-weight: 500;
  cursor: pointer;
  transition: background var(--transition);
  border: none;
  font-family: var(--font);
}
.search-example-tag:hover { background: rgba(37,99,235,.14); }

/* Loading state */
.search-loading {
  display: none;
  padding: 40px 28px;
  text-align: center;
}
.search-loading.visible { display: block; }
.loading-spinner {
  width: 56px; height: 56px;
  margin: 0 auto 20px;
  position: relative;
}
.loading-spinner::before, .loading-spinner::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 3px solid transparent;
}
.loading-spinner::before {
  border-top-color: var(--primary);
  animation: spin .8s linear infinite;
}
.loading-spinner::after {
  border-bottom-color: var(--secondary);
  animation: spin 1.2s linear infinite reverse;
  inset: 6px;
}
@keyframes spin { to { transform: rotate(360deg); } }

.loading-phrase {
  font-size: 1rem;
  color: var(--text-muted);
  font-weight: 500;
  min-height: 1.5em;
  transition: opacity .3s ease;
}
.loading-dots::after {
  content: '';
  animation: dots 1.5s steps(4) infinite;
}
@keyframes dots {
  0%   { content: ''; }
  25%  { content: '.'; }
  50%  { content: '..'; }
  75%  { content: '...'; }
}

/* Results */
.search-results {
  display: none;
  padding: 24px 28px;
  flex: 1;
  min-height: 0;
  overflow-y: auto;
}
.search-results.visible { display: block; }

.result-drug {
  background: linear-gradient(135deg, rgba(37,99,235,.04), rgba(6,182,212,.04));
  border: 1px solid rgba(37,99,235,.15);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 16px;
}
.result-drug-name {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.result-drug-badge {
  font-size: .7rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 50px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  text-decoration: none;
  flex-shrink: 0;
}
.result-drug-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
}
.result-drug-desc {
  font-size: .9rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 14px;
}
.result-drug-sections {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 16px;
}
.result-drug-section {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-left: 3px solid var(--primary);
  border-radius: 6px;
  padding: 10px 14px;
}
.result-drug-section:nth-child(2) { border-left-color: #f59e0b; }
.result-drug-section:nth-child(3) { border-left-color: #10b981; }
.result-drug-section:nth-child(4) { border-left-color: #8b5cf6; }
.result-drug-section-title {
  font-size: .72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .8px;
  color: var(--text-light);
  margin-bottom: 4px;
}
.result-drug-section-text {
  font-size: .85rem;
  color: var(--text-muted);
  line-height: 1.5;
}
.result-drug-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: .85rem;
  font-weight: 600;
  color: var(--primary);
}
.result-drug-link:hover { color: var(--primary-d); }

.result-symptom-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}
.result-symptom-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
}
.result-symptom-subtitle {
  font-size: .85rem;
  color: var(--text-muted);
  margin-top: 2px;
}
.result-drugs-list { display: flex; flex-direction: column; gap: 12px; }
.result-drug-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  transition: border-color var(--transition), box-shadow var(--transition);
  cursor: pointer;
  text-decoration: none;
  color: inherit;
}
.result-drug-item:hover {
  border-color: rgba(37,99,235,.3);
  box-shadow: var(--shadow-sm);
}
.result-drug-item-num {
  width: 28px; height: 28px;
  background: rgba(37,99,235,.1);
  color: var(--primary);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .78rem;
  font-weight: 800;
  flex-shrink: 0;
}
.result-drug-item-name {
  font-size: .95rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 3px;
}
.result-drug-item-desc {
  font-size: .82rem;
  color: var(--text-muted);
  line-height: 1.4;
}

.result-not-found {
  text-align: center;
  padding: 32px 20px;
  color: var(--text-muted);
}
.result-not-found svg { margin: 0 auto 16px; opacity: .4; }
.result-not-found p { font-size: .95rem; }

/* ─── Cookie banner ──────────────────────────────────────── */
.cookie-banner {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  z-index: 9999;
  background: var(--bg-card);
  border-top: 1px solid var(--border);
  box-shadow: 0 -4px 24px rgba(0,0,0,.08);
  padding: 14px 0;
}
.cookie-banner-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}
.cookie-banner-text {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  flex: 1;
  font-size: .875rem;
  color: var(--text-muted);
  line-height: 1.5;
  min-width: 240px;
}
.cookie-banner-actions {
  display: flex;
  gap: 8px;
  flex-shrink: 0;
}

/* ─── Footer CTA ─────────────────────────────────────────── */
.footer-cta {
  background: linear-gradient(135deg, #1e3a8a, #0e7490);
  color: #fff;
  padding: 48px 0;
}

/* ─── Footer ─────────────────────────────────────────────── */
.site-footer {
  background: #0f172a;
  color: #94a3b8;
  padding: 56px 0 28px;
  margin-top: auto;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.5fr;
  gap: 40px;
  margin-bottom: 40px;
}
.footer-brand .logo-ai { font-size: 1.6rem; }
.footer-brand .logo-medicina { color: #475569; }
.footer-tagline {
  margin-top: 12px;
  font-size: .85rem;
  line-height: 1.6;
  color: #64748b;
}
.footer-col h4 {
  color: #e2e8f0;
  font-size: .9rem;
  font-weight: 700;
  margin-bottom: 16px;
  letter-spacing: .3px;
}
.footer-links { display: flex; flex-direction: column; gap: 9px; }
.footer-links a {
  color: #64748b;
  font-size: .875rem;
  transition: color var(--transition);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.footer-links a:hover { color: #e2e8f0; }

/* Contact form in footer */
.footer-form { display: flex; flex-direction: column; gap: 10px; }
.footer-form input, .footer-form textarea {
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  color: #e2e8f0;
  font-family: var(--font);
  font-size: .85rem;
  outline: none;
  transition: border-color var(--transition);
  resize: none;
}
.footer-form input:focus, .footer-form textarea:focus {
  border-color: var(--primary);
}
.footer-form input::placeholder, .footer-form textarea::placeholder {
  color: #475569;
}
.footer-captcha {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: .85rem;
}
.footer-captcha-q {
  background: rgba(255,255,255,.08);
  padding: 6px 12px;
  border-radius: 6px;
  font-weight: 700;
  color: #e2e8f0;
  white-space: nowrap;
}
.footer-captcha input {
  width: 70px;
  text-align: center;
}
.footer-divider {
  border: none;
  border-top: 1px solid rgba(255,255,255,.06);
  margin: 0 0 20px;
}
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: .8rem;
  color: #475569;
  flex-wrap: wrap;
  gap: 8px;
}
.footer-disclaimer {
  font-size: .75rem;
  color: #374151;
  margin-top: 10px;
  line-height: 1.5;
}

/* ─── Misc ───────────────────────────────────────────────── */
.page-header {
  background: linear-gradient(135deg, #f0f7ff 0%, #e0f2fe 100%);
  padding: 28px 0;
  border-bottom: 1px solid var(--border);
  margin-bottom: 24px;
}
.page-header h1 { margin-bottom: 6px; }
.page-header p { color: var(--text-muted); }

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: .82rem;
  color: var(--text-muted);
  margin-bottom: 12px;
}
.breadcrumb a { color: var(--text-muted); }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb span { color: var(--text-light); }

.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 50px;
  font-size: .75rem;
  font-weight: 700;
}
.badge-primary { background: rgba(37,99,235,.12); color: var(--primary); }
.badge-secondary { background: rgba(6,182,212,.12); color: var(--secondary); }

.pagination {
  display: flex;
  justify-content: center;
  gap: 6px;
  padding: 32px 0;
}
.pagination a, .pagination span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px; height: 38px;
  border-radius: var(--radius-sm);
  font-size: .9rem;
  font-weight: 600;
  border: 1.5px solid var(--border);
  color: var(--text-muted);
  transition: all var(--transition);
}
.pagination a:hover { background: rgba(37,99,235,.08); border-color: var(--primary); color: var(--primary); }
.pagination span.current { background: var(--primary); border-color: var(--primary); color: #fff; }

/* ─── Error pages (403 / 404) ────────────────────────────── */
.error-page {
  min-height: calc(100vh - 200px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 60px 20px;
}
.error-page-inner {
  text-align: center;
  max-width: 520px;
  margin: 0 auto;
}
.error-icon-wrap {
  width: 100px;
  height: 100px;
  margin: 0 auto 28px;
  position: relative;
}
.error-svg {
  width: 100%;
  height: 100%;
  animation: error-svg-pulse 3s ease-in-out infinite;
}
@keyframes error-svg-pulse {
  0%, 100% { opacity: .85; transform: scale(1);   }
  50%       { opacity: 1;   transform: scale(1.06); }
}
.error-code {
  font-size: 6rem;
  font-weight: 900;
  line-height: 1;
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -4px;
  margin-bottom: 16px;
}
.error-title {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 14px;
}
.error-desc {
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1.75;
  margin-bottom: 32px;
}
.error-actions {
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 36px;
}
.error-actions .btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}
.error-links {
  display: flex;
  align-items: center;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
  font-size: .85rem;
  color: var(--text-muted);
  padding-top: 20px;
  border-top: 1px solid var(--border);
}
.error-links-label {
  color: var(--text-light);
  white-space: nowrap;
}
.error-links a {
  color: var(--primary);
  font-weight: 500;
}
.error-links a:hover { color: var(--primary-d); }

.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
}
.empty-state svg { margin: 0 auto 20px; opacity: .3; }
.empty-state h3 { margin-bottom: 8px; color: var(--text); }

/* alert */
.alert {
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  font-size: .875rem;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.alert-success { background: rgba(16,185,129,.1); color: #065f46; border: 1px solid rgba(16,185,129,.25); }
.alert-error   { background: rgba(239,68,68,.1);  color: #7f1d1d; border: 1px solid rgba(239,68,68,.25); }

/* ─── Responsive ─────────────────────────────────────────── */
@media (max-width: 1024px) {
  .hero-visual { display: none; }
  .drug-sections-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px; }
}
@media (max-width: 768px) {
  .hero-full { padding: 56px 0 52px; min-height: 480px; }
  .hero-title { letter-spacing: -.5px; }
  .hero-search-btn span { display: none; }
  .hero-search-btn { padding: 0 18px; }
  .hero-stats { gap: 0; padding: 12px 20px; }
  .hero-stat-item { padding: 0 14px; }
  .hero-stat-num { font-size: 1.4rem; }
  .main-nav { display: none; }
  .main-nav.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 70px; left: 0; right: 0;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
    padding: 12px;
    box-shadow: var(--shadow);
  }
  .burger { display: block; }
  .header-inner { position: relative; }
  .hero { padding: 48px 0; }
  .section { padding: 40px 0; }
  .categories-grid { grid-template-columns: repeat(2, 1fr); }
  .drugs-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .search-modal-overlay { padding: 40px 12px 12px; }
}
@media (max-width: 480px) {
  .categories-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .hero-stats { gap: 20px; }
}