/* Import modern Google font */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800;900&display=swap');

:root {
  /* Dark Theme Variables (Default Premium) */
  --bg-color-1: #060d22;
  --bg-color-2: #0f1c3f;
  --bg-gradient: radial-gradient(circle at 18% 15%, var(--bg-color-2), var(--bg-color-1) 70%);
  --panel-bg: rgba(15, 28, 63, 0.45);
  --panel-border: rgba(255, 255, 255, 0.08);
  --panel-shadow: 0 16px 45px rgba(3, 8, 25, 0.6);
  --text-main: #f3f5fa;
  --text-muted: #8d9bbd;
  --text-inverse: #060d22;
  --line-color: rgba(255, 255, 255, 0.08);
  --input-bg: rgba(10, 20, 46, 0.6);
  --input-border: rgba(255, 255, 255, 0.12);
  --input-focus: var(--color-cyan);
  --header-bg: rgba(6, 13, 34, 0.75);
  --footer-bg: rgba(6, 13, 34, 0.5);
  
  /* Modular Accent Colors (Tailored HSL) */
  --color-navy: #1f6f8b;
  --color-blue: #3282b8;
  --color-cyan: #48cae4;
  --color-orange: #f77f00;
  --color-purple: #9d4edd;
  --color-gold: #ffb703;
  --color-red: #d62828;
  --color-green: #2a9d8f;

  /* Card Colors Dark */
  --card-adult-bg: linear-gradient(135deg, rgba(31, 111, 139, 0.2) 0%, rgba(50, 130, 184, 0.1) 100%);
  --card-ped-bg: linear-gradient(135deg, rgba(247, 127, 0, 0.18) 0%, rgba(247, 127, 0, 0.06) 100%);
  --card-calc-bg: linear-gradient(135deg, rgba(157, 78, 221, 0.18) 0%, rgba(157, 78, 221, 0.06) 100%);
  --card-fav-bg: linear-gradient(135deg, rgba(255, 183, 3, 0.18) 0%, rgba(255, 183, 3, 0.06) 100%);

  --font-sans: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --glass-blur: blur(14px);
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Light Theme Variables */
[data-theme="light"] {
  --bg-color-1: #edf2f7;
  --bg-color-2: #f8fafc;
  --bg-gradient: linear-gradient(135deg, #edf2f7 0%, #e2e8f0 100%);
  --panel-bg: rgba(255, 255, 255, 0.75);
  --panel-border: rgba(0, 0, 0, 0.06);
  --panel-shadow: 0 16px 40px rgba(15, 23, 42, 0.08);
  --text-main: #0f172a;
  --text-muted: #64748b;
  --text-inverse: #ffffff;
  --line-color: rgba(0, 0, 0, 0.08);
  --input-bg: rgba(255, 255, 255, 0.9);
  --input-border: rgba(0, 0, 0, 0.12);
  --input-focus: #0f172a;
  --header-bg: rgba(237, 242, 247, 0.75);
  --footer-bg: rgba(237, 242, 247, 0.5);

  /* Card Colors Light */
  --card-adult-bg: linear-gradient(135deg, rgba(31, 111, 139, 0.08) 0%, rgba(50, 130, 184, 0.04) 100%);
  --card-ped-bg: linear-gradient(135deg, rgba(247, 127, 0, 0.08) 0%, rgba(247, 127, 0, 0.03) 100%);
  --card-calc-bg: linear-gradient(135deg, rgba(157, 78, 221, 0.08) 0%, rgba(157, 78, 221, 0.03) 100%);
  --card-fav-bg: linear-gradient(135deg, rgba(255, 183, 3, 0.08) 0%, rgba(255, 183, 3, 0.03) 100%);
}

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

html, body {
  width: 100%;
  min-height: 100%;
  font-family: var(--font-sans);
  color: var(--text-main);
  background: #040914;
  overflow-x: hidden;
  -webkit-tap-highlight-color: transparent;
}

/* Fixed Background Image Element (Official Ambulance & Flowcharts Graphic bg.jpg) */
.app-bg {
  position: fixed;
  top: -20px;
  left: -20px;
  right: -20px;
  bottom: -20px;
  background: url('./bg.jpg') center center / cover no-repeat !important;
  filter: blur(10px) brightness(0.42) saturate(1.25);
  transform: scale(1.04);
  z-index: 0;
  pointer-events: none;
}

.app-bg-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 35% 25%, rgba(6, 13, 34, 0.45) 0%, rgba(3, 8, 20, 0.85) 100%);
  z-index: 0;
  pointer-events: none;
}

.app {
  position: relative;
  z-index: 1;
}

body.viewer-active {
  overflow: hidden;
}

.visitor-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: 20px;
  background: rgba(72, 202, 228, 0.08);
  border: 1px solid rgba(72, 202, 228, 0.25);
  color: var(--color-cyan);
  font-size: 13.5px;
  font-weight: 700;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  margin-top: 10px;
  backdrop-filter: blur(8px);
}

/* App Shell Layout */
.app {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* Header & Top Bar */
.topbar {
  height: 80px;
  padding: 0 clamp(16px, 4vw, 56px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--header-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--panel-border);
  position: sticky;
  top: 0;
  z-index: 40;
  transition: all var(--transition-normal);
}

.brand {
  display: flex;
  align-items: center;
  gap: 16px;
  font-weight: 800;
  letter-spacing: -0.02em;
  text-decoration: none;
  color: var(--text-main);
}

.brand-logo {
  width: 52px;
  height: 52px;
  object-fit: contain;
  filter: drop-shadow(0 4px 10px rgba(0, 0, 0, 0.2));
  transition: transform var(--transition-normal);
}

.brand:hover .brand-logo {
  transform: rotate(5deg) scale(1.05);
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.brand-title {
  font-size: 20px;
  font-weight: 900;
  background: linear-gradient(135deg, var(--text-main) 30%, var(--color-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.brand-subtitle {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-muted);
  margin-top: 3px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.top-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Buttons */
.btn {
  border: 0;
  border-radius: 14px;
  padding: 12px 20px;
  font-weight: 700;
  font-size: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  cursor: pointer;
  transition: all var(--transition-normal);
  font-family: var(--font-sans);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-main);
  border: 1px solid var(--panel-border);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.12);
  transform: translateY(-2px);
}

.btn-solid {
  background: var(--text-main);
  color: var(--text-inverse);
  box-shadow: 0 4px 15px rgba(0,0,0,0.15);
}

.btn-solid:hover {
  background: var(--text-muted);
  transform: translateY(-2px);
}

.btn-theme-toggle {
  width: 44px;
  height: 44px;
  padding: 0;
  border-radius: 50%;
  font-size: 18px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-main);
  border: 1px solid var(--panel-border);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-normal);
}

.btn-theme-toggle:hover {
  transform: rotate(20deg) scale(1.05);
  background: rgba(255, 255, 255, 0.12);
}

/* Home Welcome Screen */
.welcome-screen {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 40px 24px;
  position: relative;
  overflow: hidden;
}

.welcome-hero {
  text-align: center;
  max-width: 900px;
  margin-bottom: 48px;
  z-index: 10;
}

.welcome-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: 99px;
  background: rgba(72, 202, 228, 0.1);
  border: 1px solid rgba(72, 202, 228, 0.2);
  color: var(--color-cyan);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 24px;
  animation: pulseBadge 3s infinite alternate;
}

@keyframes pulseBadge {
  0% { transform: scale(1); box-shadow: 0 0 0 0 rgba(72, 202, 228, 0.2); }
  100% { transform: scale(1.03); box-shadow: 0 0 10px 4px rgba(72, 202, 228, 0.1); }
}

.welcome-hero h1 {
  font-size: clamp(32px, 6.5vw, 64px);
  font-weight: 900;
  letter-spacing: -0.04em;
  line-height: 1.05;
  margin-bottom: 16px;
  background: linear-gradient(135deg, var(--text-main) 20%, var(--text-muted) 80%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.welcome-hero p {
  font-size: clamp(15px, 2vw, 18px);
  color: var(--text-muted);
  font-weight: 400;
  max-width: 600px;
  margin: 0 auto;
}

/* Category Grid */
.category-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(280px, 350px));
  gap: 24px;
  width: 100%;
  max-width: 1100px;
  z-index: 10;
  margin-bottom: 32px;
}

.category-card {
  border: 1px solid var(--panel-border);
  border-radius: 28px;
  padding: 32px;
  background: var(--panel-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  box-shadow: var(--panel-shadow);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  text-align: left;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);
}

.category-card.adult { background: var(--card-adult-bg); }
.category-card.pediatric { background: var(--card-ped-bg); }
.category-card.calculations { background: var(--card-calc-bg); }
.category-card.starred-section { background: var(--card-fav-bg); }

.category-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 6px;
  transition: all var(--transition-normal);
}

.category-card.adult::before { background: linear-gradient(90deg, var(--color-navy), var(--color-blue)); }
.category-card.pediatric::before { background: linear-gradient(90deg, var(--color-orange), var(--color-cyan)); }
.category-card.calculations::before { background: linear-gradient(90deg, var(--color-purple), var(--color-cyan)); }

.category-card.adult:hover { border-color: rgba(72, 202, 228, 0.4); transform: translateY(-8px); }
.category-card.pediatric:hover { border-color: rgba(247, 127, 0, 0.4); transform: translateY(-8px); }
.category-card.calculations:hover { border-color: rgba(157, 78, 221, 0.4); transform: translateY(-8px); }

.category-icon {
  width: 64px;
  height: 64px;
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  margin-bottom: 24px;
  transition: all var(--transition-normal);
}

.category-card.adult .category-icon { background: rgba(50, 130, 184, 0.15); color: var(--color-cyan); }
.category-card.pediatric .category-icon { background: rgba(247, 127, 0, 0.15); color: var(--color-orange); }
.category-card.calculations .category-icon { background: rgba(157, 78, 221, 0.15); color: var(--color-purple); }

.category-card:hover .category-icon {
  transform: scale(1.1) rotate(5deg);
}

.category-card h2 {
  font-size: 24px;
  font-weight: 800;
  margin-bottom: 8px;
  color: var(--text-main);
  letter-spacing: -0.02em;
}

.category-card p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.45;
}

.category-arrow {
  margin-top: auto;
  padding-top: 24px;
  font-size: 20px;
  color: var(--text-muted);
  align-self: flex-end;
  transition: transform var(--transition-normal);
}

.category-card:hover .category-arrow {
  transform: translateX(6px);
  color: var(--text-main);
}

.disclaimer {
  max-width: 750px;
  font-size: 11px;
  color: var(--text-muted);
  text-align: center;
  line-height: 1.5;
  margin-top: 24px;
  z-index: 10;
  opacity: 0.8;
}

/* Catalog Screen */
.catalog-screen {
  padding: 40px clamp(16px, 4vw, 56px) 80px;
  max-width: 1400px;
  width: 100%;
  margin: 0 auto;
}

.catalog-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 40px;
}

.catalog-header h1 {
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 900;
  letter-spacing: -0.03em;
  margin-bottom: 8px;
}

.catalog-header p {
  color: var(--text-muted);
  font-size: 15px;
}

/* Search Wrapper */
.search-wrapper {
  position: relative;
  width: min(440px, 100%);
}

.search-input {
  width: 100%;
  border: 1px solid var(--input-border);
  border-radius: 18px;
  padding: 16px 20px 16px 48px;
  background: var(--input-bg);
  color: var(--text-main);
  outline: none;
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: 15px;
  box-shadow: 0 8px 30px rgba(0,0,0,0.05);
  backdrop-filter: var(--glass-blur);
  transition: all var(--transition-normal);
}

.search-input:focus {
  border-color: var(--color-cyan);
  box-shadow: 0 0 0 4px rgba(72, 202, 228, 0.15);
}

.search-icon-svg {
  position: absolute;
  left: 18px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
  width: 18px;
  height: 18px;
}

/* Mobile Category Picker */
.mobile-nav-picker {
  display: none;
  margin-bottom: 24px;
}

.mobile-nav-picker label {
  display: block;
  font-size: 12px;
  font-weight: 800;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 8px;
}

.mobile-select {
  width: 100%;
  border: 1px solid var(--input-border);
  border-radius: 16px;
  padding: 14px 40px 14px 16px;
  background: var(--input-bg);
  color: var(--text-main);
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 15px;
  outline: none;
  appearance: none;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%238d9bbd' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'><polyline points='6 9 12 15 18 9'></polyline></svg>");
  background-repeat: no-repeat;
  background-position: calc(100% - 16px) center;
  background-size: 18px;
}

/* Catalog Body Grid */
.catalog-body {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 40px;
}

/* Sidebar Nav */
.sidebar-nav {
  position: sticky;
  top: 110px;
  align-self: start;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.sidebar-nav-btn {
  border: 0;
  background: transparent;
  border-radius: 12px;
  text-align: left;
  padding: 12px 16px;
  color: var(--text-muted);
  font-size: 13px;
  font-weight: 700;
  font-family: var(--font-sans);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.sidebar-nav-btn:hover {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-main);
}

.sidebar-nav-btn.active {
  background: var(--panel-bg);
  color: var(--text-main);
  border: 1px solid var(--panel-border);
  box-shadow: 0 4px 15px rgba(0,0,0,0.05);
}

/* Grid Sections & Topics */
.topic-sections {
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.topic-section {
  scroll-margin-top: 110px;
}

.section-title {
  font-size: 14px;
  font-weight: 800;
  text-transform: uppercase;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.section-title::after {
  content: '';
  height: 1px;
  flex: 1;
  background: var(--line-color);
}

.topic-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}

/* Interactive Topic Cards */
.topic-card {
  border: 1px solid var(--panel-border);
  background: var(--panel-bg);
  border-radius: 20px;
  padding: 20px;
  text-align: left;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 128px;
  cursor: pointer;
  position: relative;
  transition: all var(--transition-normal);
}

.topic-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--panel-shadow);
  border-color: rgba(255, 255, 255, 0.2);
}

.pediatric-theme .topic-card:hover {
  border-color: rgba(247, 127, 0, 0.35);
}

.topic-card-title {
  font-weight: 700;
  font-size: 16px;
  line-height: 1.35;
  color: var(--text-main);
  margin-bottom: 12px;
  padding-right: 28px; /* Safe space for favorite star */
}

.topic-card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
}

.page-pill {
  border-radius: 99px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--panel-border);
  padding: 6px 12px;
  font-size: 11px;
  font-weight: 700;
  color: var(--text-muted);
}

.pediatric-theme .page-pill {
  background: rgba(247, 127, 0, 0.08);
  color: #ffaa66;
}

/* Bookmark/Star Icon */
.btn-star {
  position: absolute;
  top: 16px;
  right: 16px;
  background: transparent;
  border: 0;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 20px;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  z-index: 5;
}

.btn-star:hover {
  color: var(--color-gold);
  transform: scale(1.2);
}

.btn-star.starred {
  color: var(--color-gold);
  filter: drop-shadow(0 0 6px rgba(255, 183, 3, 0.4));
}

.empty-state {
  padding: 64px 32px;
  text-align: center;
  color: var(--text-muted);
  background: var(--panel-bg);
  border: 1px dashed var(--panel-border);
  border-radius: 24px;
}

/* Calculations Screen */
.calc-screen {
  padding: 40px clamp(16px, 4vw, 56px) 80px;
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
}

.calc-hero {
  margin-bottom: 32px;
}

.calc-hero h1 {
  font-size: clamp(28px, 4.5vw, 48px);
  font-weight: 900;
  letter-spacing: -0.03em;
  margin-bottom: 8px;
}

.calc-hero p {
  color: var(--text-muted);
  font-size: 15px;
}

.calc-alert {
  background: rgba(247, 127, 0, 0.08);
  border-left: 4px solid var(--color-orange);
  border-radius: 14px;
  padding: 16px 20px;
  margin-bottom: 32px;
  color: #ffb17a;
  font-size: 13.5px;
  line-height: 1.45;
  display: flex;
  align-items: center;
  gap: 12px;
}

.patient-input-card {
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  border-radius: 24px;
  padding: 24px;
  box-shadow: var(--panel-shadow);
  margin-bottom: 32px;
}

.patient-input-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group label {
  font-size: 12px;
  font-weight: 800;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.form-group input, .form-group select {
  width: 100%;
  border: 1px solid var(--input-border);
  border-radius: 14px;
  padding: 14px;
  background: var(--input-bg);
  color: var(--text-main);
  outline: none;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 15px;
  transition: all var(--transition-normal);
}

.form-group input:focus, .form-group select:focus {
  border-color: var(--color-purple);
  box-shadow: 0 0 0 3px rgba(157, 78, 221, 0.15);
}

/* Vital Signs / Reference Panel */
.vitals-panel {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 32px;
}

.vital-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--panel-border);
  border-radius: 18px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.vital-label {
  font-size: 10px;
  font-weight: 800;
  text-transform: uppercase;
  color: var(--text-muted);
  letter-spacing: 0.06em;
  margin-bottom: 6px;
}

.vital-value {
  font-size: 22px;
  font-weight: 800;
  color: var(--color-cyan);
}

/* Tabs */
.calc-tabs {
  display: flex;
  gap: 12px;
  margin-bottom: 24px;
  border-bottom: 1px solid var(--line-color);
  padding-bottom: 8px;
  overflow-x: auto;
}

.calc-tab {
  border: 0;
  background: transparent;
  color: var(--text-muted);
  font-size: 16px;
  font-weight: 700;
  padding: 10px 16px;
  cursor: pointer;
  font-family: var(--font-sans);
  position: relative;
  white-space: nowrap;
  transition: all var(--transition-fast);
}

.calc-tab:hover {
  color: var(--text-main);
}

.calc-tab.active {
  color: var(--color-purple);
}

.calc-tab.active::after {
  content: '';
  position: absolute;
  bottom: -9px;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--color-purple);
  border-radius: 3px;
}

/* Calculation Panel Content */
.calc-panel {
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  border-radius: 24px;
  padding: 32px;
  box-shadow: var(--panel-shadow);
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.calc-panel h2 {
  font-size: 22px;
  font-weight: 800;
  color: var(--text-main);
}

/* Utility Classes */
.hidden {
  display: none !important;
}

/* Drugs Calculator Layout */
.drug-calc-row {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 20px;
  align-items: flex-end;
}

.calc-result-box {
  background: linear-gradient(135deg, rgba(157, 78, 221, 0.08) 0%, rgba(72, 202, 228, 0.04) 100%);
  border: 1px solid rgba(157, 78, 221, 0.25);
  border-radius: 20px;
  padding: 24px;
  margin-top: 12px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  animation: slideUp 0.3s ease-out;
}

@keyframes slideUp {
  from { transform: translateY(12px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

.calc-result-title {
  font-size: 18px;
  font-weight: 800;
  color: var(--text-main);
}

.dose-display {
  font-size: clamp(32px, 5.5vw, 44px);
  font-weight: 900;
  color: #c084fc;
  letter-spacing: -0.03em;
}

.dose-details-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
}

.detail-box {
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--panel-border);
  border-radius: 14px;
  padding: 14px;
}

.detail-box span {
  display: block;
  font-size: 10px;
  font-weight: 800;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-bottom: 4px;
}

.detail-box strong {
  display: block;
  font-size: 14px;
  font-weight: 700;
  color: var(--text-main);
}

.drug-sources {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 4px;
}

.btn-pdf-source {
  border: 0;
  background: rgba(157, 78, 221, 0.12);
  color: #c084fc;
  border-radius: 8px;
  padding: 6px 10px;
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-pdf-source:hover {
  background: rgba(157, 78, 221, 0.22);
}

.warning-alert {
  background: rgba(214, 40, 40, 0.1);
  border: 1px solid var(--color-red);
  border-radius: 14px;
  padding: 14px 16px;
  color: #ff7676;
  font-weight: 600;
  font-size: 13px;
}

.drug-note {
  font-size: 12.5px;
  color: var(--text-muted);
  line-height: 1.5;
  border-top: 1px solid var(--line-color);
  padding-top: 16px;
}

/* Airway Page Cards */
.airway-cards-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.airway-card {
  border: 1px solid var(--panel-border);
  background: rgba(255,255,255,0.02);
  border-radius: 18px;
  padding: 20px;
}

.airway-card h3 {
  font-size: 14px;
  font-weight: 800;
  text-transform: uppercase;
  color: var(--text-muted);
  letter-spacing: 0.04em;
  margin-bottom: 12px;
}

.airway-value {
  font-size: 32px;
  font-weight: 900;
  color: #c084fc;
  margin-bottom: 8px;
}

.airway-meta {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.45;
}

/* Fullscreen Viewer */
.viewer-screen {
  position: fixed;
  inset: 0;
  z-index: 50;
  background: #030816;
  display: grid;
  grid-template-rows: 72px 1fr;
}

.viewer-screen.hidden {
  display: none !important;
}

.viewer-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  background: #070e1e;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.viewer-title-box {
  min-width: 0;
  flex: 1;
  text-align: center;
  padding: 0 16px;
}

.viewer-title-box strong {
  display: block;
  font-size: 15px;
  font-weight: 800;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  color: #fff;
}

.viewer-title-box small {
  display: block;
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 2px;
}

.viewer-nav-actions {
  display: flex;
  gap: 8px;
}

.btn-viewer {
  border: 0;
  color: #fff;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 12px;
  padding: 10px 14px;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  transition: all var(--transition-fast);
}

.btn-viewer:hover {
  background: rgba(255, 255, 255, 0.12);
}

.btn-viewer:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.pdf-stage {
  width: 100%;
  height: 100%;
  overflow: auto;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 16px;
  background: #090e1c;
  position: relative;
  touch-action: none; /* Block default zoom/pinch to use custom zoom handler */
}

.pdf-stage-image {
  max-width: 100%;
  height: auto;
  display: block;
  border-radius: 12px;
  box-shadow: 0 15px 40px rgba(0,0,0,0.5);
  transform-origin: 0 0;
  will-change: transform;
  user-select: none;
  -webkit-user-select: none;
  pointer-events: auto;
}

.pdf-stage-image.zoom-animating {
  transition: transform var(--transition-normal);
}

.viewer-loader {
  position: absolute;
  inset: 0;
  background: rgba(3, 8, 22, 0.95);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  z-index: 10;
}

.viewer-loader.hidden {
  display: none !important;
}

.spinner {
  width: 48px;
  height: 48px;
  border: 4px solid rgba(255, 255, 255, 0.1);
  border-top-color: var(--color-cyan);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Footer Downloader */
.site-footer {
  display: flex;
  justify-content: center;
  padding: 24px;
  background: var(--footer-bg);
  border-top: 1px solid var(--line-color);
  backdrop-filter: var(--glass-blur);
}

.site-footer.hidden {
  display: none !important;
}

.btn-download-all {
  background: linear-gradient(135deg, var(--bg-color-2), #060d22);
  color: var(--text-main);
  border: 1px solid var(--panel-border);
  box-shadow: 0 8px 30px rgba(0,0,0,0.15);
  width: min(100%, 400px);
}

.btn-download-all:hover {
  border-color: var(--color-cyan);
  box-shadow: 0 8px 30px rgba(72, 202, 228, 0.15);
}

/* Media Queries (Responsive Adjustments) */
@media (max-width: 960px) {
  .catalog-body {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  
  .sidebar-nav {
    display: none;
  }

  .mobile-nav-picker {
    display: block;
  }

  .category-grid {
    grid-template-columns: 1fr;
    max-width: 450px;
  }
  
  .vitals-panel {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 680px) {
  .topbar {
    height: 72px;
    padding: 0 16px;
  }
  
  .brand-logo {
    width: 42px;
    height: 42px;
  }
  
  .brand-title {
    font-size: 17px;
  }
  
  .brand-subtitle {
    font-size: 9.5px;
  }

  .welcome-screen {
    padding: 24px 16px 40px;
  }

  .welcome-hero h1 {
    font-size: 36px;
  }

  .category-card {
    padding: 24px;
    border-radius: 20px;
  }

  .catalog-screen, .calc-screen {
    padding: 24px 16px 80px;
  }

  .catalog-header {
    flex-direction: column;
    align-items: stretch;
    gap: 16px;
    margin-bottom: 24px;
  }

  .search-wrapper {
    width: 100%;
  }

  .calc-panel {
    padding: 20px;
    border-radius: 18px;
  }

  .drug-calc-row {
    grid-template-columns: 1fr;
  }

  .calc-tab {
    font-size: 14px;
    padding: 8px 10px;
  }

  .btn-star {
    font-size: 22px;
  }

  /* Fullscreen mobile adjustments for Viewer */
  .viewer-screen {
    grid-template-rows: 96px 1fr;
  }

  .viewer-bar {
    height: 96px;
    padding: 8px;
    display: grid;
    grid-template-columns: 1fr repeat(3, 44px);
    grid-template-rows: 38px 44px;
    grid-template-areas:
      "title title title title"
      "back prev next open";
    gap: 4px;
  }

  .viewer-title-box {
    grid-area: title;
  }

  #backBtn {
    grid-area: back;
    justify-content: flex-start;
  }

  #prevPage {
    grid-area: prev;
  }

  #nextPage {
    grid-area: next;
  }

  #openPdf {
    grid-area: open;
  }

  .btn-viewer {
    height: 40px;
    padding: 0;
    justify-content: center;
  }
  
  .pdf-stage {
    padding: 8px;
  }
}

/* Desktop Nav Links */
.desktop-nav-links {
  display: flex;
  gap: 6px;
  margin: 0 16px;
}

@media (max-width: 960px) {
  .desktop-nav-links {
    display: none;
  }
}

.nav-btn {
  background: transparent;
  border: 0;
  border-radius: 12px;
  padding: 10px 16px;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 13.5px;
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.nav-btn:hover {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-main);
}

.nav-btn.active {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-main);
  box-shadow: inset 0 2px 4px rgba(0,0,0,0.1);
}

/* Mobile Bottom Nav Bar */
.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: 68px;
  background: var(--header-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-top: 1px solid var(--panel-border);
  display: none;
  grid-template-columns: repeat(5, 1fr);
  z-index: 45;
  box-shadow: 0 -6px 25px rgba(3, 8, 25, 0.4);
  padding-bottom: env(safe-area-inset-bottom);
}

@media (max-width: 960px) {
  .bottom-nav {
    display: grid;
  }
  
  body {
    padding-bottom: 80px;
  }
}

.bottom-nav-item {
  background: transparent;
  border: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  color: var(--text-muted);
  cursor: pointer;
  font-family: var(--font-sans);
  transition: all var(--transition-fast);
}

.bottom-nav-item .nav-icon {
  font-size: 20px;
  line-height: 1.1;
  transition: transform var(--transition-fast);
}

.bottom-nav-item .nav-label {
  font-size: 10px;
  font-weight: 700;
}

.bottom-nav-item:hover, .bottom-nav-item.active {
  color: var(--text-main);
}

.bottom-nav-item.active .nav-icon {
  transform: scale(1.18);
  filter: drop-shadow(0 0 5px rgba(255, 255, 255, 0.25));
}

/* EKG Monitor Simulator Styling */
.ecg-monitor-container {
  width: 100%;
  position: relative;
  background: #020612;
  border: 2px solid rgba(72, 202, 228, 0.2);
  border-radius: 20px;
  overflow: hidden;
  box-shadow: inset 0 0 30px rgba(0,0,0,0.9), var(--panel-shadow);
}

.ecg-canvas {
  width: 100%;
  height: 200px;
  display: block;
}

.ecg-monitor-meta {
  position: absolute;
  top: 12px;
  right: 18px;
  left: 18px;
  display: flex;
  justify-content: space-between;
  pointer-events: none;
  font-family: monospace;
  font-weight: 900;
  font-size: 15px;
  color: #00ffcc;
  text-shadow: 0 0 8px rgba(0,255,200,0.6);
}

#ecgStatus {
  text-transform: uppercase;
}

#ecgStatus.normal {
  color: #00ffaa;
  text-shadow: 0 0 8px rgba(0,255,170,0.6);
}

#ecgStatus.warning {
  color: #ffaa00;
  text-shadow: 0 0 8px rgba(255,170,0,0.6);
}

#ecgStatus.danger {
  color: #ff3344;
  text-shadow: 0 0 8px rgba(255,51,68,0.7);
}

/* Brand Logo Circular Crop */
.brand-logo {
  width: 52px;
  height: 52px;
  object-fit: cover;
  border-radius: 50%;
  border: 2px solid var(--color-red);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.25);
  transition: transform var(--transition-normal);
}

/* AI ECG Upload Box Styles */
.ai-ecg-upload-box {
  border: 2px dashed rgba(157, 78, 221, 0.3);
  border-radius: 18px;
  padding: 24px;
  text-align: center;
  cursor: pointer;
  background: var(--input-bg);
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  position: relative;
  min-height: 120px;
}

.ai-ecg-upload-box:hover {
  border-color: var(--color-purple);
  background: rgba(157, 78, 221, 0.05);
}

.ekg-sub-panel.hidden {
  display: none !important;
}

/* Chatbot Screen Styling */
.chat-message {
  max-width: 85%;
  padding: 12px 16px;
  border-radius: 16px;
  font-size: 14px;
  line-height: 1.5;
  font-family: var(--font-sans);
  word-wrap: break-word;
  animation: fadeIn 0.2s ease-out;
}

.chat-message.assistant {
  align-self: flex-start;
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  color: var(--text-main);
  border-bottom-left-radius: 4px;
  box-shadow: var(--card-shadow);
}

.chat-message.user {
  align-self: flex-end;
  background: var(--color-purple);
  color: #ffffff;
  border-bottom-right-radius: 4px;
  box-shadow: 0 4px 15px rgba(157, 78, 221, 0.25);
}

.chat-chip {
  background: rgba(157, 78, 221, 0.12);
  border: 1px solid rgba(157, 78, 221, 0.25);
  color: #c084fc;
  border-radius: 12px;
  padding: 6px 12px;
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition-fast);
  font-family: var(--font-sans);
  margin-top: 4px;
}

.chat-chip:hover {
  background: var(--color-purple);
  color: #ffffff;
  border-color: var(--color-purple);
  transform: translateY(-1px);
}

@media (min-width: 960px) {
  .category-grid.four-cols {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* Footer & Instagram Section Styling */
.site-footer {
  padding: 32px 24px 110px 24px;
  background: rgba(6, 13, 34, 0.65);
  backdrop-filter: blur(12px);
  border-top: 1px solid var(--panel-border);
  margin-top: 40px;
}

.footer-container {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  text-align: center;
}

.footer-instagram-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 22px;
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(225, 48, 108, 0.15) 0%, rgba(253, 29, 29, 0.15) 50%, rgba(245, 96, 64, 0.15) 100%);
  border: 1px solid rgba(225, 48, 108, 0.35);
  color: #ff6b8b;
  text-decoration: none;
  font-size: 14px;
  font-weight: 700;
  transition: all var(--transition-fast);
  box-shadow: 0 4px 15px rgba(225, 48, 108, 0.15);
}

.footer-instagram-btn:hover {
  background: linear-gradient(135deg, #e1306c 0%, #fd1d1d 50%, #f56040 100%);
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(225, 48, 108, 0.4);
}

.footer-info-box {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--panel-border);
  border-radius: 14px;
  padding: 14px 18px;
  font-size: 12.5px;
  line-height: 1.5;
  color: var(--text-muted);
  max-width: 750px;
}

.footer-info-box strong {
  color: var(--text-main);
  display: block;
  margin-bottom: 4px;
}

.footer-visitor-text {
  font-size: 13px;
  font-weight: 700;
  color: var(--color-cyan);
}

/* Independent Resmi Gazete Approval Bar */
.resmi-gazete-bar {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 20px;
  border-radius: 99px;
  background: rgba(255, 183, 3, 0.1);
  border: 1px solid rgba(255, 183, 3, 0.3);
  color: var(--color-gold);
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 24px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  backdrop-filter: blur(8px);
  text-align: center;
}

.resmi-gazete-bar .rg-icon {
  font-size: 18px;
}

/* Home Direct Embedded Interactive PDF Viewer Card */
.home-pdf-viewer-card {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto 36px auto;
  background: rgba(15, 28, 63, 0.7);
  border: 1px solid rgba(72, 202, 228, 0.3);
  border-radius: 24px;
  backdrop-filter: blur(16px);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.45);
  overflow: hidden;
}

.home-pdf-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  background: rgba(6, 13, 34, 0.75);
  border-bottom: 1px solid var(--panel-border);
  flex-wrap: wrap;
  gap: 12px;
}

.home-pdf-title {
  display: flex;
  align-items: center;
  gap: 12px;
}

.home-pdf-title .pdf-icon {
  font-size: 24px;
}

.home-pdf-title strong {
  display: block;
  font-size: 14px;
  color: var(--text-main);
}

.home-pdf-title small {
  display: block;
  font-size: 12px;
  color: var(--text-muted);
}

.home-pdf-controls {
  display: flex;
  align-items: center;
  gap: 10px;
}

.home-page-indicator {
  font-size: 13px;
  font-weight: 700;
  color: var(--color-cyan);
  padding: 4px 12px;
  border-radius: 8px;
  background: rgba(72, 202, 228, 0.1);
  border: 1px solid rgba(72, 202, 228, 0.2);
}

.home-pdf-stage {
  width: 100%;
  max-height: 600px;
  min-height: 380px;
  background: #030816;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: 16px;
}

.home-pdf-stage img {
  max-width: 100%;
  max-height: 570px;
  height: auto;
  object-fit: contain;
  border-radius: 12px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.6);
  cursor: pointer;
  transition: transform var(--transition-fast);
}

.home-pdf-stage img:hover {
  transform: scale(1.01);
}

/* Official Announcement Text Card under PDF Preview */
.official-notice-card {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto 36px auto;
  padding: 28px clamp(16px, 4vw, 32px);
  background: linear-gradient(135deg, rgba(15, 28, 63, 0.85) 0%, rgba(6, 13, 34, 0.9) 100%);
  border: 1px solid rgba(72, 202, 228, 0.25);
  border-radius: 24px;
  backdrop-filter: blur(16px);
  box-shadow: 0 16px 45px rgba(0, 0, 0, 0.4);
  text-align: left;
}

.notice-header {
  display: flex;
  align-items: center;
  gap: 16px;
  padding-bottom: 20px;
  margin-bottom: 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  flex-wrap: wrap;
}

.notice-logo {
  width: 54px;
  height: 54px;
  object-fit: contain;
  flex-shrink: 0;
}

.notice-header h3 {
  font-size: 15px;
  font-weight: 800;
  color: var(--color-cyan);
  margin-bottom: 4px;
  letter-spacing: 0.03em;
}

.notice-subtitle {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-muted);
}

.notice-body p {
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-main);
  margin-bottom: 14px;
}

.notice-body strong {
  color: #ffffff;
}

.official-link-box {
  margin: 16px 0;
  padding: 12px 16px;
  background: rgba(72, 202, 228, 0.08);
  border: 1px dashed rgba(72, 202, 228, 0.3);
  border-radius: 12px;
  font-size: 13px;
  color: var(--text-muted);
  word-break: break-all;
}

.official-link-box a {
  color: var(--color-cyan);
  font-weight: 700;
  text-decoration: underline;
}

.notice-footer-note {
  font-style: italic;
  color: var(--color-gold) !important;
  font-weight: 700;
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.pdf-badge-tag {
  position: absolute;
  bottom: 10px;
  left: 10px;
  right: 10px;
  background: rgba(6, 13, 34, 0.85);
  backdrop-filter: blur(8px);
  color: var(--color-cyan);
  font-size: 11.5px;
  font-weight: 800;
  padding: 6px 10px;
  border-radius: 8px;
  text-align: center;
  border: 1px solid rgba(72, 202, 228, 0.3);
}

.pdf-preview-info {
  flex: 1;
  min-width: 280px;
}

.resmi-gazete-badge {
  display: inline-block;
  padding: 6px 14px;
  border-radius: 99px;
  background: rgba(255, 183, 3, 0.12);
  border: 1px solid rgba(255, 183, 3, 0.3);
  color: var(--color-gold);
  font-size: 12px;
  font-weight: 800;
  margin-bottom: 12px;
}

.pdf-preview-info h2 {
  font-size: clamp(18px, 3vw, 24px);
  font-weight: 900;
  color: var(--text-main);
  line-height: 1.25;
  margin-bottom: 8px;
}

.pdf-preview-info p {
  font-size: 13.5px;
  color: var(--text-muted);
  line-height: 1.4;
  margin-bottom: 16px;
}

.pdf-thumbs-strip {
  display: flex;
  gap: 12px;
  margin-top: 14px;
  overflow-x: auto;
  padding-bottom: 6px;
}

.thumb-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  width: 100px;
  flex-shrink: 0;
  transition: transform var(--transition-fast);
}

.thumb-item:hover {
  transform: translateY(-3px);
}

.thumb-item img {
  width: 100px;
  height: 70px;
  object-fit: cover;
  border-radius: 10px;
  border: 1.5px solid rgba(255, 255, 255, 0.15);
  box-shadow: 0 4px 12px rgba(0,0,0,0.3);
}

.thumb-item:hover img {
  border-color: var(--color-cyan);
}

.thumb-item span {
  font-size: 11px;
  font-weight: 700;
  color: var(--text-main);
  text-align: center;
  white-space: nowrap;
}

.guide-panel-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
}

/* Modal Overlay & QR Code Dialog */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(3, 8, 22, 0.75);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  animation: fadeIn 0.2s ease-out;
}

.modal-overlay.hidden {
  display: none !important;
}

.modal-card {
  background: rgba(15, 28, 63, 0.85);
  border: 1px solid rgba(255, 255, 255, 0.15);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.6);
  border-radius: 28px;
  padding: 32px 24px;
  max-width: 440px;
  width: 100%;
  position: relative;
  text-align: center;
  backdrop-filter: blur(16px);
}

.modal-close-btn {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--panel-border);
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-main);
  font-size: 16px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.modal-close-btn:hover {
  background: rgba(255, 255, 255, 0.2);
}

.modal-header .modal-icon {
  font-size: 36px;
  margin-bottom: 10px;
}

.modal-header h3 {
  font-size: 22px;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 6px;
}

.modal-header p {
  font-size: 13.5px;
  color: var(--text-muted);
  line-height: 1.4;
  margin-bottom: 20px;
}

.qr-code-frame {
  background: #ffffff;
  padding: 16px;
  border-radius: 20px;
  display: inline-block;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
  margin-bottom: 20px;
}

.qr-code-frame img {
  width: 200px;
  height: 200px;
  display: block;
}

.qr-url-badge {
  font-size: 12px;
  font-weight: 700;
  color: #0f1c3f;
  margin-top: 8px;
  font-family: monospace;
}

.modal-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.modal-actions .btn {
  width: 100%;
}

/* ----------------------------------------------------
   COMPREHENSIVE MOBILE RESPONSIVE ADAPTATIONS
   ---------------------------------------------------- */

@media screen and (max-width: 768px) {
  /* Header & Top Bar */
  .topbar {
    height: auto;
    padding: 10px 14px;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: space-between;
  }

  .brand {
    gap: 8px;
  }

  .brand-logo {
    height: 36px !important;
    width: 36px !important;
  }

  .brand-logo.gif-logo {
    height: 42px !important;
    width: auto !important;
    max-width: 70px !important;
  }

  .brand-title {
    font-size: 14px;
  }

  .brand-subtitle {
    font-size: 10.5px;
  }

  .top-actions {
    gap: 6px;
  }

  .top-actions .btn {
    padding: 6px 10px !important;
    font-size: 12px !important;
  }

  /* Welcome Screen */
  .welcome-screen {
    padding: 16px 12px 90px 12px;
  }

  .resmi-gazete-bar {
    width: 100%;
    font-size: 11.5px;
    padding: 8px 12px;
    margin-bottom: 18px;
  }

  /* Home PDF Viewer Card */
  .home-pdf-viewer-card {
    border-radius: 18px;
    margin-bottom: 24px;
  }

  .home-pdf-bar {
    flex-direction: column;
    align-items: stretch;
    padding: 12px;
    gap: 10px;
  }

  .home-pdf-title strong {
    font-size: 13px;
  }

  .home-pdf-title small {
    font-size: 11px;
  }

  .home-pdf-controls {
    width: 100%;
    justify-content: space-between;
  }

  .home-page-indicator {
    font-size: 12px;
    padding: 3px 8px;
  }

  .home-pdf-stage {
    min-height: 280px;
    max-height: 450px;
    padding: 8px;
  }

  /* Official Notice Card */
  .official-notice-card {
    padding: 18px 14px;
    border-radius: 18px;
    margin-bottom: 24px;
  }

  .notice-header {
    gap: 10px;
    padding-bottom: 14px;
    margin-bottom: 14px;
  }

  .notice-logo {
    width: 42px;
    height: 42px;
  }

  .notice-header h3 {
    font-size: 13.5px;
  }

  .notice-subtitle {
    font-size: 11.5px;
  }

  .notice-body p {
    font-size: 13px;
    line-height: 1.5;
    margin-bottom: 10px;
  }

  .official-link-box {
    font-size: 11px;
    padding: 10px;
  }

  /* Category Grid */
  .category-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  /* Catalog Search & Layout */
  .catalog-screen {
    padding: 16px 12px 90px 12px;
  }

  .catalog-header {
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
  }

  .search-wrapper {
    width: 100%;
  }

  .search-input {
    width: 100%;
    font-size: 14px;
  }

  .audience-switcher {
    width: 100%;
  }

  .aud-pill {
    flex: 1;
    text-align: center;
    padding: 8px 10px !important;
    font-size: 12px !important;
  }

  /* Calculation Screen */
  .calc-screen {
    padding: 16px 12px 90px 12px;
  }

  .patient-input-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .vitals-panel {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .calc-tabs {
    flex-direction: column;
  }

  .calc-tab {
    width: 100%;
    text-align: center;
  }

  .airway-cards-grid {
    grid-template-columns: 1fr !important;
    gap: 12px !important;
  }

  /* Table overflow wrappers */
  .table-wrapper {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  /* Fullscreen Viewer Controls */
  .viewer-controls {
    padding: 8px 12px;
    gap: 8px;
    flex-wrap: wrap;
    justify-content: center;
  }

  .viewer-controls button {
    padding: 6px 10px;
    font-size: 12px;
  }
}

@media screen and (max-width: 480px) {
  .brand-text {
    display: none;
  }
  
  .resmi-gazete-bar {
    font-size: 11px;
  }

  .notice-header h3 {
    font-size: 12.5px;
  }

  .modal-card {
    padding: 24px 16px;
  }

  .qr-code-frame img {
    width: 160px;
    height: 160px;
  }
}