/* ==========================================================================
   PaedsCalc Official Stylesheet — Apple-Inspired Clinical Design System
   Minimal, Modern, High-Contrast Point-of-Care Presentation
   Senior Product Designer Polish: Zero Clutter, Zero Noise, Pure Flow
   ========================================================================== */

:root {
  /* Brand & Core Palette */
  --primary: #0284c7;
  --primary-hover: #0369a1;
  --primary-light: #f0f9ff;
  --primary-border: #bae6fd;
  --primary-surface: rgba(2, 132, 199, 0.05);

  /* Typography Colors */
  --text-primary: #0f172a;
  --text-secondary: #334155;
  --text-muted: #64748b;
  --text-subtle: #94a3b8;

  /* Surfaces & Backgrounds */
  --bg-page: #ffffff;
  --bg-subtle: #f8fafc;
  --bg-card: #ffffff;
  --bg-card-subtle: #f1f5f9;

  /* Borders & Dividers */
  --border-light: #f1f5f9;
  --border: #e2e8f0;
  --border-strong: #cbd5e1;

  /* Layout & Radii */
  --radius-xs: 6px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-full: 9999px;

  /* Restrained Shadows */
  --shadow-subtle: 0 1px 2px 0 rgba(0, 0, 0, 0.04);
  --shadow-card: 0 4px 20px -2px rgba(15, 23, 42, 0.05);
  --shadow-elevated: 0 12px 32px -4px rgba(15, 23, 42, 0.07);

  /* Fonts */
  --font-main: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-main);
  background-color: var(--bg-page);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* ================= UTILITY WRAPPERS ================= */
.pc-container {
  width: 100%;
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
}

@media (max-width: 640px) {
  .pc-container {
    padding: 0 18px;
  }
}

/* Section Headings */
.pc-section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 36px auto;
}

.pc-section-kicker {
  display: inline-block;
  font-size: 0.74rem;
  font-weight: 750;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--primary);
  margin-bottom: 8px;
}

.pc-section-title {
  font-size: clamp(1.65rem, 3.4vw, 2.25rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  line-height: 1.2;
  margin-bottom: 8px;
  text-wrap: balance;
}

.pc-section-sub {
  font-size: clamp(0.92rem, 1.6vw, 1.04rem);
  color: var(--text-secondary);
  line-height: 1.5;
  font-weight: 450;
  text-wrap: balance;
}

@media (max-width: 768px) {
  .pc-section-header {
    margin-bottom: 24px;
  }
}

/* ================= 01 — HEADER ================= */
.pc-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.85);
  transition: all 0.2s ease;
}

.pc-header-inner {
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.pc-brand-group {
  display: flex;
  align-items: center;
  gap: 12px;
}

.pc-logo-link {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
}

.pc-logo-img {
  height: 26px;
  width: auto;
  display: block;
}

.pc-nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.pc-nav-link {
  font-size: 0.92rem;
  font-weight: 550;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.15s ease;
}

.pc-nav-link:hover {
  color: var(--primary);
}

.pc-header-cta-group {
  display: flex;
  align-items: center;
  gap: 12px;
}

.pc-btn-header-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 18px;
  border-radius: var(--radius-full);
  background: var(--primary);
  color: #ffffff;
  font-size: 0.88rem;
  font-weight: 650;
  text-decoration: none;
  transition: background 0.15s ease, transform 0.1s ease;
}

.pc-btn-header-cta:hover {
  background: var(--primary-hover);
  transform: translateY(-1px);
}

.pc-mobile-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  color: var(--text-primary);
  border-radius: var(--radius-xs);
}

.pc-mobile-toggle svg {
  display: block;
}

/* Mobile Drawer */
.pc-mobile-drawer {
  display: none;
  position: absolute;
  top: 64px;
  left: 0;
  width: 100%;
  background: #ffffff;
  border-bottom: 1px solid var(--border);
  box-shadow: 0 16px 28px rgba(0, 0, 0, 0.06);
  padding: 20px 24px 28px 24px;
}

.pc-mobile-drawer.open {
  display: block;
}

.pc-mobile-nav-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 22px;
}

.pc-mobile-nav-item {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  text-decoration: none;
  padding: 8px 0;
  border-bottom: 1px solid var(--border-light);
}

.pc-mobile-drawer-btn {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  padding: 13px;
  border-radius: var(--radius-md);
  background: var(--primary);
  color: #ffffff;
  font-size: 0.98rem;
  font-weight: 700;
  text-decoration: none;
}

@media (max-width: 820px) {
  .pc-nav-links {
    display: none;
  }
  .pc-header-cta-group .pc-btn-header-cta {
    display: none;
  }
  .pc-mobile-toggle {
    display: block;
  }
}

/* ================= 02 — HERO ================= */
.pc-hero-section {
  padding: 68px 0 80px 0;
  background: linear-gradient(180deg, #ffffff 0%, var(--bg-subtle) 100%);
  border-bottom: 1px solid var(--border);
}

.pc-hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 52px;
  align-items: center;
}

.pc-hero-content {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.pc-hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  background: #f0f9ff;
  border: 1px solid #bae6fd;
  color: #0369a1;
  font-size: 0.8rem;
  font-weight: 700;
  margin-bottom: 22px;
}

.pc-hero-headline {
  font-size: clamp(2.35rem, 5.2vw, 3.6rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.12;
  color: var(--text-primary);
  margin-bottom: 18px;
  text-wrap: balance;
}

.pc-headline-accent {
  color: var(--primary);
  display: inline-block;
}

.pc-hero-sub {
  font-size: clamp(1.05rem, 2vw, 1.2rem);
  line-height: 1.55;
  color: var(--text-secondary);
  font-weight: 450;
  max-width: 480px;
  margin-bottom: 30px;
}

.pc-hero-cta-wrap {
  display: flex;
  flex-direction: column;
  gap: 16px;
  width: 100%;
  max-width: 420px;
}

.pc-hero-btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 15px 28px;
  border-radius: var(--radius-md);
  background: var(--primary);
  color: #ffffff;
  font-size: 1.02rem;
  font-weight: 700;
  text-decoration: none;
  box-shadow: 0 4px 14px rgba(2, 132, 199, 0.24);
  transition: all 0.15s ease;
}

.pc-hero-btn-primary:hover {
  background: var(--primary-hover);
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(2, 132, 199, 0.32);
}

.pc-hero-trust-line {
  font-size: 0.84rem;
  color: var(--text-muted);
  font-weight: 550;
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 4px;
}

.pc-hero-trust-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #10b981;
  display: inline-block;
}

/* Hero Right: Real PaedsCalc UI Card */
.pc-hero-visual {
  display: flex;
  justify-content: center;
  width: 100%;
}

.pc-app-window-card {
  width: 100%;
  max-width: 510px;
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-elevated);
  overflow: hidden;
}

.pc-window-topbar {
  background: #f8fafc;
  padding: 10px 16px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.pc-window-dots {
  display: flex;
  gap: 6px;
}

.pc-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
}
.pc-dot.red { background: #ef4444; }
.pc-dot.yellow { background: #f59e0b; }
.pc-dot.green { background: #10b981; }

.pc-window-title {
  font-size: 0.76rem;
  font-weight: 750;
  color: var(--text-muted);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.pc-window-body {
  padding: 22px 20px;
}

/* Stepper & Selector Preview in Hero Card */
.pc-preview-field-group {
  margin-bottom: 16px;
}

.pc-preview-label {
  display: block;
  font-size: 0.74rem;
  font-weight: 750;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.pc-preview-weight-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: #f8fafc;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 4px 8px;
}

.pc-preview-stepper-btn {
  width: 46px;
  height: 46px;
  border-radius: var(--radius-sm);
  background: #ffffff;
  border: 1px solid var(--border);
  color: var(--text-primary);
  font-size: 1.18rem;
  font-weight: 750;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  user-select: none;
  transition: background 0.15s;
}

.pc-preview-stepper-btn:hover {
  background: #f1f5f9;
}

.pc-preview-weight-val {
  font-size: 1.62rem;
  font-weight: 850;
  color: var(--text-primary);
  display: flex;
  align-items: baseline;
  gap: 3px;
}

.pc-preview-weight-val span {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text-muted);
}

.pc-preview-chips-row {
  display: flex;
  gap: 5px;
  margin-top: 8px;
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.pc-preview-chips-row::-webkit-scrollbar {
  display: none;
}

.pc-preview-chip {
  flex: 1;
  min-width: 50px;
  padding: 6px 4px;
  border-radius: var(--radius-xs);
  background: #f8fafc;
  border: 1px solid var(--border);
  font-size: 0.74rem;
  font-weight: 650;
  color: var(--text-secondary);
  text-align: center;
  cursor: pointer;
  white-space: nowrap;
}

.pc-preview-chip.active {
  background: #e0f2fe;
  border-color: #7dd3fc;
  color: #0369a1;
}

/* Regimen Tag Strip */
.pc-regimen-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 16px;
}

.pc-tag-pill {
  font-size: 0.74rem;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: var(--radius-xs);
  background: #f1f5f9;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  white-space: nowrap;
}

/* LARGE SKY BLUE HERO CONTAINER (Option B) */
.pc-sky-hero-card {
  background: rgba(240, 249, 255, 0.75);
  border: 2px solid #38bdf8;
  border-radius: var(--radius-lg);
  padding: 20px 18px;
  text-align: center;
  margin-bottom: 16px;
}

.pc-sky-hero-label {
  display: block;
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #0369a1;
  margin-bottom: 4px;
}

.pc-sky-hero-num {
  font-size: clamp(3rem, 7vw, 3.5rem);
  font-weight: 900;
  line-height: 1;
  letter-spacing: -0.04em;
  color: #0284c7;
  margin-bottom: 8px;
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 5px;
}

.pc-sky-hero-unit {
  font-size: 1.45rem;
  font-weight: 700;
  color: #0369a1;
}

.pc-sky-hero-mg-badge {
  display: inline-block;
  background: #ffffff;
  border: 1px solid #bae6fd;
  color: #0369a1;
  font-size: 0.82rem;
  font-weight: 750;
  padding: 3px 12px;
  border-radius: var(--radius-full);
}

.pc-preview-freq-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.82rem;
  padding: 8px 10px;
  background: #f8fafc;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  border: 1px solid var(--border-light);
  gap: 8px;
}

.pc-preview-freq-val {
  font-weight: 700;
  color: var(--text-primary);
  text-align: right;
}

@media (max-width: 960px) {
  .pc-hero-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 42px;
  }
  .pc-hero-visual {
    width: 100%;
    min-width: 0;
  }
  .pc-hero-content {
    min-width: 0;
  }
}

@media (max-width: 480px) {
  .pc-container {
    padding: 0 16px;
  }
  .pc-hero-section {
    padding: 36px 0 48px 0;
  }
  .pc-hero-headline {
    font-size: 1.95rem;
    line-height: 1.15;
  }
  .pc-hero-sub {
    font-size: 1rem;
    margin-bottom: 24px;
  }
  .pc-hero-btn-primary {
    width: 100%;
    padding: 14px 20px;
  }
  .pc-window-body {
    padding: 14px 12px;
  }
  .pc-preview-freq-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 3px;
  }
  .pc-preview-freq-val {
    text-align: left;
  }
  .pc-sky-hero-card {
    padding: 14px 10px;
  }
  .pc-sky-hero-num {
    font-size: 2.6rem;
  }
}

/* ================= 03 — PRODUCT PROOF ================= */
.pc-proof-section {
  padding: 60px 0 68px 0;
  background: #ffffff;
}

.pc-proof-pipeline {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 10px;
}

.pc-proof-step {
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 16px 12px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: transform 0.15s ease, border-color 0.15s ease;
  min-width: 0;
}

.pc-proof-step:hover {
  transform: translateY(-2px);
  border-color: var(--primary-border);
}

.pc-step-num-pill {
  font-size: 0.68rem;
  font-weight: 800;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 6px;
}

.pc-step-name {
  font-size: 0.8rem;
  font-weight: 750;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.pc-step-content {
  margin-top: 2px;
}

.pc-step-val-large {
  font-size: 1.25rem;
  font-weight: 850;
  color: var(--text-primary);
  line-height: 1.2;
}

.pc-step-val-blue {
  color: var(--primary);
}

.pc-step-detail {
  font-size: 0.74rem;
  color: var(--text-muted);
  margin-top: 4px;
  font-weight: 500;
  line-height: 1.35;
}

.pc-proof-step.highlight {
  background: #f0f9ff;
  border: 1.5px solid #38bdf8;
}

.pc-proof-step.highlight .pc-step-name {
  color: #0369a1;
}

@media (max-width: 1024px) {
  .pc-proof-pipeline {
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
  }
}

@media (max-width: 580px) {
  .pc-proof-section {
    padding: 40px 0;
  }
  .pc-proof-pipeline {
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
  }
  .pc-proof-step {
    padding: 12px 10px;
  }
  .pc-step-val-large {
    font-size: 1.1rem;
  }
  .pc-step-detail {
    font-size: 0.7rem;
  }
}

/* ================= 04 — CORE WORKFLOW ================= */
.pc-workflow-section {
  padding: 54px 0;
  background: var(--bg-subtle);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.pc-workflow-track {
  display: flex;
  align-items: stretch;
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-subtle);
  padding: 8px;
  gap: 0;
}

.pc-workflow-stage {
  flex: 1;
  min-width: 0;
  padding: 22px 18px;
  border-radius: var(--radius-lg);
  text-decoration: none;
  color: inherit;
  transition: all 0.15s ease;
  display: flex;
  flex-direction: column;
}

.pc-workflow-stage:hover {
  background: #f8fafc;
}

.pc-workflow-step-num {
  font-size: 0.72rem;
  font-weight: 850;
  color: var(--primary);
  font-family: var(--font-mono);
  margin-bottom: 10px;
  display: inline-block;
  background: var(--primary-light);
  border: 1px solid var(--primary-border);
  padding: 2px 7px;
  border-radius: var(--radius-xs);
  width: fit-content;
}

.pc-workflow-title {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-bottom: 6px;
  transition: color 0.15s ease;
}

.pc-workflow-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.5;
  font-weight: 450;
}

.pc-workflow-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--border-strong);
  font-size: 1.15rem;
  font-weight: 600;
  padding: 0 4px;
  user-select: none;
  opacity: 0.65;
}

@media (max-width: 860px) {
  .pc-workflow-track {
    flex-direction: column;
    padding: 10px;
    gap: 4px;
  }
  .pc-workflow-stage {
    padding: 15px 14px;
    background: #f8fafc;
    border: 1px solid var(--border-light);
  }
  .pc-workflow-arrow {
    transform: rotate(90deg);
    padding: 2px 0;
    font-size: 0.95rem;
    color: var(--primary);
    opacity: 0.75;
  }
}

@media (max-width: 580px) {
  .pc-workflow-section {
    padding: 36px 0;
  }
}

/* ================= 05 — WEIGHT REFERENCE ================= */
.pc-weight-section {
  padding: 54px 0;
  background: #ffffff;
}

.pc-weight-card {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 32px;
  box-shadow: var(--shadow-card);
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 36px;
  align-items: center;
}

.pc-weight-text-side h2 {
  font-size: clamp(1.65rem, 3vw, 2.05rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  line-height: 1.2;
  margin-bottom: 10px;
}

.pc-weight-text-side p {
  font-size: 0.98rem;
  color: var(--text-secondary);
  line-height: 1.55;
  margin-bottom: 20px;
}

.pc-btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: var(--radius-md);
  border: 1.5px solid var(--border-strong);
  background: #ffffff;
  color: var(--text-primary);
  font-size: 0.88rem;
  font-weight: 650;
  text-decoration: none;
  transition: all 0.15s ease;
}

.pc-btn-outline:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--primary-light);
}

.pc-weight-demo-side {
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 18px 16px;
}

.pc-weight-pipeline-visual {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.pc-weight-pipe-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  gap: 8px;
}

.pc-pipe-label {
  font-size: 0.74rem;
  font-weight: 750;
  text-transform: uppercase;
  color: var(--text-muted);
}

.pc-pipe-val {
  font-size: 0.95rem;
  font-weight: 750;
  color: var(--text-primary);
  text-align: right;
}

.pc-pipe-arrow {
  text-align: center;
  color: var(--text-subtle);
  font-size: 0.8rem;
  line-height: 1;
}

@media (max-width: 860px) {
  .pc-weight-section {
    padding: 36px 0;
  }
  .pc-weight-card {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 22px 18px;
  }
}

/* ================= 06 — CLINICAL TOOLS ================= */
.pc-tools-section {
  padding: 46px 0;
  background: var(--bg-subtle);
  border-top: 1px solid var(--border);
}

.pc-tools-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
}

.pc-tool-item {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 12px 13px;
  box-shadow: var(--shadow-subtle);
  display: flex;
  flex-direction: column;
  transition: all 0.15s ease;
}

.pc-tool-item:hover {
  transform: translateY(-2px);
  border-color: var(--primary-border);
  box-shadow: var(--shadow-card);
}

.pc-tool-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
}

.pc-tool-icon {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-xs);
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.pc-tool-icon svg {
  width: 16px;
  height: 16px;
}

.pc-tool-name {
  font-size: 0.94rem;
  font-weight: 750;
  color: var(--text-primary);
  line-height: 1.25;
}

.pc-tool-desc {
  font-size: 0.79rem;
  color: var(--text-muted);
  line-height: 1.42;
}

@media (max-width: 960px) {
  .pc-tools-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 9px;
  }
}

@media (max-width: 600px) {
  .pc-tools-section {
    padding: 30px 0;
  }
  .pc-tools-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 7px;
  }
  .pc-tool-item {
    padding: 10px 9px;
  }
  .pc-tool-name {
    font-size: 0.86rem;
  }
  .pc-tool-desc {
    font-size: 0.73rem;
    line-height: 1.35;
  }
}

/* ================= 07 — CLINICAL SAFEGUARDS ================= */
.pc-safeguards-section {
  padding: 48px 0;
  background: #ffffff;
  border-top: 1px solid var(--border);
}

.pc-safeguards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.pc-safeguard-card {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 18px 18px;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-subtle);
  transition: all 0.15s ease;
}

.pc-safeguard-card:hover {
  transform: translateY(-2px);
  border-color: var(--primary-border);
  box-shadow: var(--shadow-card);
}

.pc-safeguard-badge {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 750;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: #0369a1;
  background: #f0f9ff;
  border: 1px solid #bae6fd;
  padding: 2px 7px;
  border-radius: var(--radius-xs);
  width: fit-content;
  margin-bottom: 8px;
}

.pc-safeguard-title {
  font-size: 1.05rem;
  font-weight: 750;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.pc-safeguard-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

@media (max-width: 860px) {
  .pc-safeguards-section {
    padding: 32px 0;
  }
  .pc-safeguards-grid {
    grid-template-columns: 1fr;
    gap: 10px;
  }
  .pc-safeguard-card {
    padding: 16px 14px;
  }
}

/* ================= 08 — OFFLINE / PRIVACY ================= */
.pc-privacy-section {
  padding: 44px 0;
  background: var(--bg-subtle);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.pc-privacy-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.pc-privacy-item {
  text-align: center;
  padding: 18px 14px;
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-subtle);
}

.pc-privacy-tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 850;
  letter-spacing: 0.08em;
  color: var(--primary);
  margin-bottom: 6px;
}

.pc-privacy-title {
  font-size: 1.08rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.pc-privacy-desc {
  font-size: 0.86rem;
  color: var(--text-secondary);
  line-height: 1.45;
  max-width: 300px;
  margin: 0 auto;
}

@media (max-width: 768px) {
  .pc-privacy-section {
    padding: 30px 0;
  }
  .pc-privacy-grid {
    grid-template-columns: 1fr;
    gap: 10px;
  }
  .pc-privacy-item {
    padding: 14px 12px;
  }
}

/* ================= 09 — REFERENCES ================= */
.pc-refs-section {
  padding: 44px 0;
  background: #ffffff;
}

.pc-refs-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-bottom: 24px;
}

.pc-ref-box {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 14px 12px;
  text-align: center;
  box-shadow: var(--shadow-subtle);
  transition: all 0.15s ease;
}

.pc-ref-box:hover {
  transform: translateY(-2px);
  border-color: var(--primary-border);
  box-shadow: var(--shadow-card);
}

.pc-ref-name {
  font-size: 0.94rem;
  font-weight: 750;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.pc-ref-sub {
  font-size: 0.76rem;
  color: var(--text-muted);
  line-height: 1.35;
}

.pc-refs-cta-wrap {
  text-align: center;
}

@media (max-width: 860px) {
  .pc-refs-section {
    padding: 30px 0;
  }
  .pc-refs-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
  }
  .pc-ref-box {
    padding: 12px 10px;
  }
}

/* ================= 10 — FINAL CTA ================= */
.pc-final-cta-section {
  padding: 84px 0 88px 0;
  background: linear-gradient(180deg, var(--bg-subtle) 0%, #ffffff 100%);
  border-top: 1px solid var(--border);
}

.pc-final-cta-card {
  text-align: center;
  max-width: 820px;
  margin: 0 auto;
}

.pc-final-cta-title {
  font-size: clamp(2rem, 4.4vw, 2.85rem);
  font-weight: 850;
  letter-spacing: -0.04em;
  color: var(--text-primary);
  line-height: 1.16;
  margin-bottom: 12px;
  text-wrap: balance;
}

.pc-final-cta-sub {
  font-size: clamp(1rem, 1.8vw, 1.18rem);
  color: var(--text-secondary);
  font-weight: 500;
  margin-bottom: 24px;
}

.pc-final-cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 15px 32px;
  border-radius: var(--radius-md);
  background: var(--primary);
  color: #ffffff;
  font-size: 1.02rem;
  font-weight: 700;
  text-decoration: none;
  box-shadow: 0 4px 18px rgba(2, 132, 199, 0.28);
  transition: all 0.15s ease;
}

.pc-final-cta-btn:hover {
  background: var(--primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(2, 132, 199, 0.36);
}

@media (max-width: 640px) {
  .pc-final-cta-section {
    padding: 56px 0;
  }
  .pc-final-cta-btn {
    width: 100%;
    justify-content: center;
  }
}

/* ================= 11 — FOOTER ================= */
.pc-footer {
  padding: 44px 0 32px 0;
  background: #ffffff;
  border-top: 1px solid var(--border);
  font-size: 0.88rem;
  color: var(--text-muted);
}

.pc-footer-inner {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.pc-footer-nav-hierarchy {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.pc-footer-links-primary {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  font-size: 0.94rem;
  font-weight: 650;
  color: var(--text-secondary);
}

.pc-footer-links-primary a {
  color: var(--text-primary);
  text-decoration: none;
  transition: color 0.15s ease;
}

.pc-footer-links-primary a:hover {
  color: var(--primary);
}

.pc-footer-links-secondary {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  font-size: 0.84rem;
  color: var(--text-muted);
}

.pc-footer-links-secondary a {
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.15s ease;
}

.pc-footer-links-secondary a:hover {
  color: var(--primary);
}

.pc-footer-dot {
  color: var(--border-strong);
  font-size: 0.65rem;
  user-select: none;
}

.pc-footer-disclaimer {
  max-width: 820px;
  font-size: 0.82rem;
  line-height: 1.6;
  color: var(--text-muted);
}

.pc-footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--border-light);
  padding-top: 20px;
  font-size: 0.82rem;
  color: var(--text-muted);
}

@media (max-width: 640px) {
  .pc-footer-links-primary,
  .pc-footer-links-secondary {
    gap: 8px;
  }
  .pc-footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
}

/* ================= INTERACTIVE CARD LINK RESETS & HOVERS ================= */
a.pc-proof-step,
a.pc-workflow-stage,
a.pc-tool-item,
a.pc-safeguard-card,
a.pc-ref-box {
  text-decoration: none;
  color: inherit;
  cursor: pointer;
}

a.pc-proof-step:hover .pc-step-name {
  color: var(--primary);
}

a.pc-workflow-stage:hover .pc-workflow-title {
  color: var(--primary);
}

a.pc-tool-item:hover .pc-tool-name {
  color: var(--primary);
}

a.pc-safeguard-card:hover .pc-safeguard-title {
  color: var(--primary);
}

a.pc-ref-box:hover .pc-ref-name {
  color: var(--primary);
}

/* ================= LEGAL & REFERENCE SUBPAGE STYLES ================= */
.legal-page-header,
.pc-subpage-header {
  padding: 56px 24px 36px 24px;
  background: linear-gradient(180deg, #ffffff 0%, var(--bg-subtle) 100%);
  border-bottom: 1px solid var(--border);
  text-align: center;
}

.legal-content-wrap,
.pc-subpage-content {
  max-width: 820px;
  margin: 0 auto;
  padding: 48px 24px 80px 24px;
}

.legal-content-wrap h1,
.pc-subpage-header h1 {
  font-size: clamp(2rem, 4vw, 2.6rem);
  font-weight: 850;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  margin: 12px 0 8px;
}

.legal-content-wrap h2,
.pc-subpage-content h2 {
  font-size: 1.45rem;
  font-weight: 800;
  color: var(--text-primary);
  margin: 36px 0 14px 0;
  letter-spacing: -0.02em;
}

.legal-content-wrap p,
.pc-subpage-content p {
  font-size: 0.98rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 16px;
}

.legal-content-wrap ul,
.legal-content-wrap ol,
.pc-subpage-content ul,
.pc-subpage-content ol {
  margin: 0 0 20px 24px;
  color: var(--text-secondary);
  line-height: 1.7;
  font-size: 0.98rem;
}

.legal-content-wrap li,
.pc-subpage-content li {
  margin-bottom: 8px;
}

.legal-content-wrap strong,
.pc-subpage-content strong {
  color: var(--text-primary);
}

.callout-box,
.pc-callout-box {
  background: #f0f9ff;
  border: 1px solid #bae6fd;
  border-left: 4px solid var(--primary);
  padding: 16px 20px;
  border-radius: var(--radius-sm);
  margin-bottom: 28px;
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--text-body);
}

.badge-tag {
  display: inline-block;
  font-size: 0.76rem;
  font-weight: 750;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--primary);
  background: #f0f9ff;
  border: 1px solid #bae6fd;
  padding: 4px 10px;
  border-radius: var(--radius-full);
}

.ref-pill-grid,
.pc-subpage-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
  margin: 20px 0 32px 0;
}

.ref-card,
.pc-subpage-card {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px;
  box-shadow: var(--shadow-subtle);
}

.ref-card h4,
.pc-subpage-card h4 {
  font-size: 1.02rem;
  font-weight: 750;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.ref-card p,
.pc-subpage-card p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.55;
  margin-bottom: 0;
}

/* Subpage Legacy V3 Navbar & Footer Support */
.v3-navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}

.v3-nav-container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.v3-brand-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
}

.v3-logo-link {
  text-decoration: none;
  display: inline-flex;
  align-items: center;
}

.v3-logo-text {
  font-size: 1.5rem;
  font-weight: 850;
  color: var(--primary);
  letter-spacing: -0.03em;
}

.v3-status-pill {
  font-size: 11px;
  font-weight: 700;
  padding: 3px 9px;
  border-radius: var(--radius-full);
  background: #ecfdf5;
  color: #047857;
  border: 1px solid #a7f3d0;
  white-space: nowrap;
}

.v3-nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}

.v3-nav-item {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.15s ease;
}

.v3-nav-item:hover, .v3-nav-item.active {
  color: var(--primary);
}

.v3-btn-launch,
.v3-btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 18px;
  border-radius: var(--radius-full);
  background: var(--primary);
  color: #ffffff;
  font-size: 0.88rem;
  font-weight: 650;
  text-decoration: none;
  transition: background 0.15s ease, transform 0.1s ease;
}

.v3-btn-launch:hover,
.v3-btn-primary:hover {
  background: var(--primary-hover);
  transform: translateY(-1px);
}

.v3-footer {
  padding: 48px 0 36px 0;
  background: #ffffff;
  border-top: 1px solid var(--border);
  font-size: 0.86rem;
  color: var(--text-muted);
}

.v3-footer-container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.v3-footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
}

.v3-footer-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 550;
  transition: color 0.15s;
}

.v3-footer-link:hover {
  color: var(--primary);
}

.v3-footer-stamp {
  font-size: 0.82rem;
  color: var(--text-secondary);
}

.v3-footer-copyright {
  font-size: 0.8rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border-light);
  padding-top: 16px;
}