/* ==========================================================================
   VigorRise — Men's Wellness & Stress Resilience Editorial Portal
   Design System: Calm Urban Balance & Premium Editorial
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Instrument+Serif:ital@0;1&family=Plus+Jakarta+Sans:wght@400;500;600;700&display=swap');

:root {
  /* Core Palette per Specification */
  --bg-white: #FFFFFF;
  --bg-card: #F7F9FA;
  --bg-card-hover: #F0F3F5;
  --text-primary: #1E2229;
  --text-secondary: #4E5663;
  --text-muted: #76808F;
  
  /* Warm Terracotta-Amber Accents */
  --accent-primary: #C86D51;
  --accent-secondary: #D48C6A;
  --accent-subtle: rgba(200, 109, 81, 0.10);
  --accent-border: rgba(200, 109, 81, 0.28);

  /* Structural Borders & Dividers */
  --border-light: #E6EAEF;
  --border-strong: #D0D7DE;
  --dark-surface: #1E2229;
  --dark-surface-elevated: #272C35;

  /* Typography */
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-serif: 'Instrument Serif', Georgia, serif;

  /* Spacing & Layout */
  --container-max: 1200px;
  --container-narrow: 860px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --shadow-subtle: 0 4px 20px rgba(30, 34, 41, 0.04);
  --shadow-card: 0 10px 30px rgba(30, 34, 41, 0.06);
  --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Reset & Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-white);
  color: var(--text-primary);
  line-height: 1.65;
  overflow-x: hidden;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

main {
  flex: 1;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition);
}

ul, ol {
  list-style: none;
}

/* Typography Hierarchy */
h1, h2, h3, h4, .serif-heading {
  color: var(--text-primary);
  line-height: 1.2;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.editorial-display {
  font-family: var(--font-serif);
  font-weight: 400;
  letter-spacing: -0.01em;
  line-height: 1.12;
}

h1 {
  font-size: clamp(2.25rem, 4vw, 3.35rem);
}

h2 {
  font-size: clamp(1.75rem, 3vw, 2.4rem);
}

h3 {
  font-size: clamp(1.25rem, 2vw, 1.5rem);
}

p {
  color: var(--text-secondary);
  margin-bottom: 1.25rem;
  font-size: 1.025rem;
}

p:last-child {
  margin-bottom: 0;
}

.lead-text {
  font-size: clamp(1.125rem, 1.5vw, 1.275rem);
  color: var(--text-secondary);
  line-height: 1.7;
  font-weight: 400;
}

/* Layout Utilities */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.container-narrow {
  width: 100%;
  max-width: var(--container-narrow);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section {
  padding: 5.5rem 0;
}

.section-sm {
  padding: 3.5rem 0;
}

.bg-soft {
  background-color: var(--bg-card);
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
}

.bg-slate {
  background-color: var(--dark-surface);
  color: var(--bg-white);
}

.bg-slate h2, .bg-slate h3, .bg-slate h4 {
  color: var(--bg-white);
}

.bg-slate p {
  color: #C2C8D1;
}

/* Section Labels & Markers */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent-primary);
  margin-bottom: 1rem;
}

.eyebrow::before {
  content: "";
  display: inline-block;
  width: 24px;
  height: 2px;
  background-color: var(--accent-primary);
}

.accent-line {
  width: 56px;
  height: 3px;
  background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
  margin: 1.25rem 0 1.75rem;
}

/* Header & Navigation */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-light);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 78px;
}

.brand-logo {
  font-size: 1.55rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.brand-logo::after {
  content: "";
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: var(--accent-primary);
  margin-top: 6px;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 2.25rem;
}

.nav-link {
  font-size: 0.94rem;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 0.4rem 0;
  position: relative;
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--accent-primary);
  transition: var(--transition);
}

.nav-link:hover,
.nav-link.active {
  color: var(--text-primary);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.header-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.62rem 1.25rem;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--bg-white);
  background-color: var(--text-primary);
  border-radius: var(--radius-sm);
  border: 1px solid var(--text-primary);
}

.header-cta:hover {
  background-color: var(--accent-primary);
  border-color: var(--accent-primary);
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  padding: 0.5rem 0.7rem;
  color: var(--text-primary);
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 600;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.9rem 1.75rem;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
  border: 1px solid transparent;
  text-align: center;
}

.btn-primary {
  background-color: var(--accent-primary);
  color: var(--bg-white);
  border-color: var(--accent-primary);
}

.btn-primary:hover {
  background-color: #b55d42;
  border-color: #b55d42;
  transform: translateY(-1px);
}

.btn-secondary {
  background-color: transparent;
  color: var(--text-primary);
  border-color: var(--border-strong);
}

.btn-secondary:hover {
  border-color: var(--text-primary);
  background-color: var(--bg-card);
}

.btn-dark {
  background-color: var(--text-primary);
  color: var(--bg-white);
  border-color: var(--text-primary);
}

.btn-dark:hover {
  background-color: var(--accent-primary);
  border-color: var(--accent-primary);
}

/* Hero Editorial Section */
.hero-editorial {
  padding: 4.5rem 0 5rem;
  border-bottom: 1px solid var(--border-light);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 4rem;
  align-items: center;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  margin-top: 2rem;
  padding-top: 1.75rem;
  border-top: 1px solid var(--border-light);
  font-size: 0.85rem;
  color: var(--text-muted);
}

.hero-meta span {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
}

.hero-meta span::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--accent-secondary);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2rem;
}

.hero-image-frame {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--border-light);
  background-color: var(--bg-card);
}

.hero-image-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  aspect-ratio: 16 / 11;
}

.image-caption-bar {
  padding: 0.9rem 1.25rem;
  background-color: var(--bg-card);
  border-top: 1px solid var(--border-light);
  font-size: 0.8rem;
  color: var(--text-muted);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* Grid Systems & Content Cards */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2.5rem;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 2.25rem;
  transition: var(--transition);
}

.card:hover {
  border-color: var(--accent-border);
  box-shadow: var(--shadow-subtle);
}

.card-white {
  background-color: var(--bg-white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 2.25rem;
}

.card-number {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--accent-primary);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
  display: block;
}

.card h3 {
  margin-bottom: 0.85rem;
}

/* Self-Assessment Diagnostic Checklist */
.diagnostic-wrapper {
  background-color: var(--bg-white);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.diagnostic-header {
  background-color: var(--dark-surface);
  color: var(--bg-white);
  padding: 2.5rem 3rem;
  border-bottom: 3px solid var(--accent-primary);
}

.diagnostic-header h2 {
  color: var(--bg-white);
  margin-bottom: 0.5rem;
}

.diagnostic-header p {
  color: #C2C8D1;
  max-width: 680px;
}

.diagnostic-body {
  padding: 2.5rem 3rem;
}

.checklist-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-bottom: 2rem;
}

.checklist-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.25rem 1.4rem;
  background-color: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition);
  user-select: none;
}

.checklist-item:hover {
  border-color: var(--accent-secondary);
  background-color: var(--bg-card-hover);
}

.checklist-item.is-checked {
  background-color: var(--accent-subtle);
  border-color: var(--accent-primary);
}

.checklist-item input[type="checkbox"] {
  appearance: none;
  -webkit-appearance: none;
  width: 22px;
  height: 22px;
  min-width: 22px;
  border: 2px solid var(--border-strong);
  border-radius: 4px;
  background-color: var(--bg-white);
  margin-top: 2px;
  cursor: pointer;
  display: grid;
  place-content: center;
  transition: var(--transition);
}

.checklist-item input[type="checkbox"]::before {
  content: "";
  width: 11px;
  height: 6px;
  border-left: 2px solid var(--bg-white);
  border-bottom: 2px solid var(--bg-white);
  transform: rotate(-45deg) scale(0);
  margin-top: -2px;
  transition: var(--transition);
}

.checklist-item input[type="checkbox"]:checked {
  background-color: var(--accent-primary);
  border-color: var(--accent-primary);
}

.checklist-item input[type="checkbox"]:checked::before {
  transform: rotate(-45deg) scale(1);
}

.checklist-text strong {
  display: block;
  font-size: 1rem;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.checklist-text span {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.5;
  display: block;
}

.diagnostic-result {
  background-color: var(--bg-card);
  border-left: 4px solid var(--accent-primary);
  padding: 1.75rem 2rem;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.diagnostic-score-badge {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.3rem 0.75rem;
  border-radius: 99px;
  background-color: var(--accent-subtle);
  color: var(--accent-primary);
  margin-bottom: 0.5rem;
}

/* Visual Scheme: The Cortisol vs. Recovery Cycle */
.cycle-scheme {
  background-color: var(--bg-white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 3rem;
  box-shadow: var(--shadow-subtle);
}

.cycle-comparison {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  margin-top: 2rem;
}

.cycle-column {
  border-radius: var(--radius-md);
  padding: 2rem;
  border: 1px solid var(--border-light);
}

.cycle-column.dysregulated {
  background-color: #FAF7F6;
  border-top: 4px solid #A85844;
}

.cycle-column.restorative {
  background-color: var(--bg-card);
  border-top: 4px solid var(--accent-primary);
}

.cycle-column-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 1.25rem;
  margin-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-light);
}

.cycle-tag {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.3rem 0.7rem;
  border-radius: var(--radius-sm);
}

.cycle-column.dysregulated .cycle-tag {
  background-color: rgba(168, 88, 68, 0.12);
  color: #964532;
}

.cycle-column.restorative .cycle-tag {
  background-color: var(--accent-subtle);
  color: var(--accent-primary);
}

.cycle-steps {
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
}

.cycle-step {
  position: relative;
  padding: 1.1rem 1.25rem;
  background-color: var(--bg-white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
}

.cycle-step-time {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent-primary);
  margin-bottom: 0.25rem;
  display: block;
}

.cycle-step h4 {
  font-size: 0.98rem;
  margin-bottom: 0.3rem;
}

.cycle-step p {
  font-size: 0.88rem;
  margin-bottom: 0;
}

/* Nutrient Highlight Cards */
.nutrient-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.nutrient-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
}

.nutrient-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-card);
  border-color: var(--accent-border);
}

.nutrient-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.nutrient-badge {
  font-size: 0.74rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent-primary);
  background-color: var(--accent-subtle);
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-sm);
}

.nutrient-latin {
  font-size: 0.85rem;
  font-style: italic;
  color: var(--text-muted);
  margin-bottom: 0.85rem;
  display: block;
}

.nutrient-specs {
  margin-top: 1.5rem;
  padding-top: 1.15rem;
  border-top: 1px solid var(--border-light);
  font-size: 0.84rem;
  color: var(--text-secondary);
}

.nutrient-specs li {
  display: flex;
  justify-content: space-between;
  padding: 0.3rem 0;
}

.nutrient-specs li strong {
  color: var(--text-primary);
}

/* Protocol Timeline / Routine Blocks */
.protocol-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.protocol-item {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 2rem;
  padding: 2rem;
  background-color: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  align-items: start;
}

.protocol-window {
  padding-right: 1.5rem;
  border-right: 2px solid var(--accent-secondary);
}

.protocol-window .window-time {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  display: block;
}

.protocol-window .window-phase {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent-primary);
  font-weight: 600;
}

/* Offer / Dedicated Product Showcase Page */
.showcase-frame {
  background-color: var(--bg-card);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.product-stage {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  background-color: #16181D;
  border: 1px solid var(--border-light);
  aspect-ratio: 16 / 10;
  display: flex;
  align-items: center;
  justify-content: center;
}

.product-stage img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.upload-slot-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.25rem;
  background-color: var(--bg-white);
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius-sm);
}

.upload-slot-info {
  font-size: 0.84rem;
  color: var(--text-secondary);
}

.upload-slot-info strong {
  color: var(--text-primary);
  display: block;
}

.spec-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 1.5rem;
  background-color: var(--bg-white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.spec-table th,
.spec-table td {
  padding: 1rem 1.25rem;
  text-align: left;
  border-bottom: 1px solid var(--border-light);
  font-size: 0.94rem;
}

.spec-table th {
  background-color: var(--bg-card);
  color: var(--text-primary);
  font-weight: 600;
  width: 36%;
}

.spec-table td {
  color: var(--text-secondary);
}

/* Contact & Inquiry Form */
.inquiry-form-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  padding: 3rem;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.form-label .required {
  color: var(--accent-primary);
}

.form-control {
  width: 100%;
  padding: 0.9rem 1.1rem;
  font-family: var(--font-sans);
  font-size: 0.98rem;
  color: var(--text-primary);
  background-color: var(--bg-white);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.form-control:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px var(--accent-subtle);
}

.form-checkbox-group {
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
  margin: 1.75rem 0;
  padding: 1.15rem;
  background-color: var(--bg-white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
}

.form-checkbox-group input[type="checkbox"] {
  width: 18px;
  height: 18px;
  margin-top: 3px;
  accent-color: var(--accent-primary);
  cursor: pointer;
}

.form-checkbox-group label {
  font-size: 0.86rem;
  color: var(--text-secondary);
  line-height: 1.55;
  cursor: pointer;
}

.form-checkbox-group label a {
  color: var(--accent-primary);
  text-decoration: underline;
}

/* Footer */
.site-footer {
  background-color: var(--dark-surface);
  color: #C2C8D1;
  padding: 4.5rem 0 2.5rem;
  border-top: 3px solid var(--accent-primary);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 3rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--bg-white);
  margin-bottom: 1rem;
  display: inline-block;
}

.footer-brand::after {
  content: "";
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: var(--accent-primary);
  margin-left: 4px;
}

.footer-heading {
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--bg-white);
  margin-bottom: 1.2rem;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.footer-links a {
  font-size: 0.9rem;
  color: #A9B2BF;
}

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

.footer-bottom {
  padding-top: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  font-size: 0.82rem;
  color: #8A94A3;
}

.footer-bottom-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.disclaimer-box {
  padding: 1.25rem;
  background-color: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-sm);
  font-size: 0.78rem;
  line-height: 1.6;
  color: #8A94A3;
}

/* Legal Document Pages */
.legal-document {
  padding: 4rem 0 5.5rem;
}

.legal-document h1 {
  margin-bottom: 0.75rem;
}

.legal-document h2 {
  font-size: 1.35rem;
  margin: 2.25rem 0 0.85rem;
}

.legal-document ul {
  list-style: disc;
  padding-left: 1.5rem;
  margin-bottom: 1.25rem;
  color: var(--text-secondary);
}

.legal-document li {
  margin-bottom: 0.5rem;
}

/* Responsive Breakpoints */
@media (max-width: 992px) {
  .hero-grid,
  .grid-2,
  .cycle-comparison,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .grid-3,
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }

  .checklist-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .section {
    padding: 3.75rem 0;
  }

  .mobile-menu-btn {
    display: inline-flex;
  }

  .main-nav {
    display: none;
    position: absolute;
    top: 78px;
    left: 0;
    right: 0;
    background-color: var(--bg-white);
    flex-direction: column;
    align-items: flex-start;
    padding: 1.5rem;
    gap: 1rem;
    border-bottom: 1px solid var(--border-strong);
    box-shadow: var(--shadow-card);
  }

  .main-nav.is-open {
    display: flex;
  }

  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }

  .protocol-item {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .protocol-window {
    border-right: none;
    border-bottom: 2px solid var(--accent-secondary);
    padding-right: 0;
    padding-bottom: 0.75rem;
  }

  .diagnostic-header,
  .diagnostic-body,
  .cycle-scheme,
  .inquiry-form-card {
    padding: 1.75rem 1.4rem;
  }
}