/* ==========================================================================
   Omnirhythm — Academic & Health Research Portal CSS
   Established 2018 | Peer-Reviewed Chronobiology & Micronutrition
   ========================================================================== */

:root {
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-serif: 'Merriweather', 'Georgia', Cambria, 'Times New Roman', serif;
  
  --color-primary: #0b2545;
  --color-primary-light: #134074;
  --color-secondary: #0d9488;
  --color-secondary-dark: #0f766e;
  --color-accent: #b45309;
  --color-accent-light: #fef3c7;
  
  --color-bg: #f8fafc;
  --color-surface: #ffffff;
  --color-surface-subtle: #f1f5f9;
  --color-border: #e2e8f0;
  --color-border-dark: #cbd5e1;
  
  --color-text: #1e293b;
  --color-text-muted: #64748b;
  --color-text-light: #94a3b8;
  
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -1px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -2px rgba(0, 0, 0, 0.04);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.09), 0 10px 10px -5px rgba(0, 0, 0, 0.03);
  
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s ease;
  --transition-slow: 0.4s ease;
}

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

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

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  color: var(--color-primary);
  line-height: 1.3;
  font-weight: 700;
  letter-spacing: -0.01em;
}

h1 { font-size: 2.35rem; margin-bottom: 1rem; }
h2 { font-size: 1.85rem; margin-bottom: 0.85rem; }
h3 { font-size: 1.4rem; margin-bottom: 0.65rem; }
h4 { font-size: 1.15rem; margin-bottom: 0.5rem; }

p { margin-bottom: 1.25rem; }

a {
  color: var(--color-secondary-dark);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover { color: var(--color-primary); }

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

.reading-progress-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: transparent;
  z-index: 100;
}

.reading-progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--color-secondary), var(--color-accent));
  width: 0%;
  transition: width 0.1s ease-out;
}

.editorial-topbar {
  background-color: #06182e;
  color: #cbd5e1;
  font-size: 0.775rem;
  padding: 0.45rem 1rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.editorial-topbar a {
  color: #93c5fd;
  text-decoration: underline;
}

.editorial-topbar a:hover { color: #ffffff; }

.site-header {
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 50;
  box-shadow: var(--shadow-sm);
}

.header-container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0.85rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-wrapper {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  text-decoration: none;
}

.brand-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 6px;
  box-shadow: 0 2px 4px rgba(11, 37, 69, 0.2);
}

.brand-icon img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.brand-text-wrap {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-family: var(--font-serif);
  font-size: 1.45rem;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.brand-tagline {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
  font-weight: 600;
  margin-top: 2px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.nav-link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text);
  padding: 0.5rem 0.4rem;
  position: relative;
  transition: color var(--transition-fast);
}

.nav-link:hover, .nav-link.active {
  color: var(--color-secondary-dark);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--color-secondary-dark);
  border-radius: 2px;
}

.nav-cta {
  background-color: var(--color-primary);
  color: #ffffff !important;
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.55rem 1.1rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-primary-light);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-fast);
}

.nav-cta:hover {
  background-color: var(--color-primary-light);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 0.5rem;
  cursor: pointer;
  color: var(--color-primary);
  font-size: 1.25rem;
}

.mobile-nav-panel {
  display: none;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: 1rem 1.5rem;
}

.mobile-nav-panel.open {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.mobile-nav-panel .nav-link {
  padding: 0.65rem 0;
  border-bottom: 1px solid var(--color-border);
}

.page-wrapper {
  max-width: 1240px;
  margin: 0 auto;
  padding: 2.5rem 1.5rem;
}

.content-narrow {
  max-width: 860px;
  margin: 0 auto;
}

.content-editorial {
  max-width: 820px;
  margin: 0 auto;
}

.hero-section {
  background: linear-gradient(180deg, #edf2f7 0%, #ffffff 100%);
  border-bottom: 1px solid var(--color-border);
  padding: 4rem 1.5rem 3.5rem;
}

.hero-grid {
  max-width: 1240px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 3.5rem;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  background-color: #e0f2fe;
  color: #0369a1;
  padding: 0.35rem 0.85rem;
  border-radius: 9999px;
  margin-bottom: 1.25rem;
  border: 1px solid #bae6fd;
}

.hero-title {
  font-size: 2.75rem;
  line-height: 1.18;
  margin-bottom: 1.25rem;
  color: var(--color-primary);
}

.hero-subtitle {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: 1.75rem;
}

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

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background-color: var(--color-primary);
  color: #ffffff;
  padding: 0.85rem 1.75rem;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
  border: none;
  cursor: pointer;
}

.btn-primary:hover {
  background-color: var(--color-primary-light);
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background-color: var(--color-surface);
  color: var(--color-primary);
  border: 1.5px solid var(--color-border-dark);
  padding: 0.85rem 1.75rem;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: all var(--transition-normal);
  cursor: pointer;
}

.btn-outline:hover {
  border-color: var(--color-primary);
  background-color: var(--color-surface-subtle);
  color: var(--color-primary);
  transform: translateY(-2px);
}

.hero-card-frame {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  border: 1px solid rgba(0, 0, 0, 0.08);
}

.hero-card-frame img {
  width: 100%;
  height: 420px;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.hero-card-frame:hover img {
  transform: scale(1.02);
}

.hero-caption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 1.25rem;
  background: linear-gradient(180deg, transparent 0%, rgba(11, 37, 69, 0.9) 100%);
  color: #ffffff;
  font-size: 0.85rem;
}

.trust-bar {
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  padding: 2.25rem 1.5rem;
}

.trust-grid {
  max-width: 1240px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.trust-item {
  text-align: center;
  padding: 0.75rem;
  border-right: 1px solid var(--color-border);
}

.trust-item:last-child {
  border-right: none;
}

.trust-number {
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-secondary-dark);
  line-height: 1.1;
  margin-bottom: 0.35rem;
}

.trust-label {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
}

.section {
  padding: 4rem 1.5rem;
}

.section-alt {
  background-color: var(--color-surface-subtle);
}

.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 3rem;
}

.section-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-secondary-dark);
  margin-bottom: 0.5rem;
}

.section-title {
  font-size: 2.15rem;
  margin-bottom: 0.85rem;
}

.section-desc {
  font-size: 1rem;
  color: var(--color-text-muted);
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
}

.research-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.research-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-border-dark);
}

.card-img-wrap {
  position: relative;
  height: 210px;
  overflow: hidden;
  background-color: #e2e8f0;
}

.card-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-normal);
}

.research-card:hover .card-img-wrap img {
  transform: scale(1.04);
}

.card-tag {
  position: absolute;
  top: 12px;
  left: 12px;
  background-color: rgba(11, 37, 69, 0.88);
  backdrop-filter: blur(4px);
  color: #ffffff;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-sm);
}

.card-body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.card-meta {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  font-size: 0.775rem;
  color: var(--color-text-muted);
  margin-bottom: 0.65rem;
}

.card-title {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
  line-height: 1.35;
}

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

.card-title a:hover {
  color: var(--color-secondary-dark);
}

.card-excerpt {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-bottom: 1.25rem;
  flex-grow: 1;
}

.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--color-border);
  padding-top: 1rem;
  font-size: 0.85rem;
  font-weight: 600;
}

.interactive-assessment-box {
  background: linear-gradient(135deg, #0b2545 0%, #134074 100%);
  color: #ffffff;
  border-radius: var(--radius-xl);
  padding: 2.5rem;
  box-shadow: var(--shadow-xl);
  margin: 3rem 0;
  position: relative;
  overflow: hidden;
}

.interactive-assessment-box::before {
  content: '';
  position: absolute;
  top: -50px;
  right: -50px;
  width: 250px;
  height: 250px;
  background: radial-gradient(circle, rgba(13, 148, 136, 0.25) 0%, transparent 70%);
  pointer-events: none;
}

.assessment-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 2rem;
}

.assessment-header h3 {
  color: #ffffff;
  font-size: 1.85rem;
  margin-bottom: 0.5rem;
}

.assessment-header p {
  color: #cbd5e1;
  font-size: 0.95rem;
}

.assessment-form-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.assessment-field {
  background-color: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-md);
  padding: 1.25rem;
}

.assessment-field label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: #93c5fd;
  margin-bottom: 0.65rem;
}

.assessment-field select, .assessment-field input {
  width: 100%;
  padding: 0.65rem 0.85rem;
  background-color: #ffffff;
  color: var(--color-text);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-family: var(--font-sans);
  outline: none;
}

.assessment-result {
  display: none;
  background-color: #ffffff;
  color: var(--color-text);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  box-shadow: var(--shadow-lg);
  animation: fadeIn 0.4s ease-in-out;
}

.assessment-result.active {
  display: block;
}

.result-badge {
  display: inline-block;
  background-color: #ccfbf1;
  color: #0f766e;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  margin-bottom: 0.75rem;
}

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

.result-card-item {
  background-color: var(--color-surface-subtle);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1rem;
}

.result-card-item h5 {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 0.35rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.result-card-item p {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-bottom: 0;
}

.faq-container {
  max-width: 820px;
  margin: 0 auto;
}

.faq-item {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin-bottom: 1rem;
  overflow: hidden;
  transition: border-color var(--transition-fast);
}

.faq-item.open {
  border-color: var(--color-secondary);
}

.faq-question {
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  padding: 1.25rem 1.5rem;
  font-family: var(--font-sans);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-primary);
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  transition: color var(--transition-fast);
}

.faq-question:hover {
  color: var(--color-secondary-dark);
}

.faq-chevron {
  font-size: 0.9rem;
  transition: transform var(--transition-normal);
  color: var(--color-text-muted);
}

.faq-item.open .faq-chevron {
  transform: rotate(180deg);
  color: var(--color-secondary-dark);
}

.faq-answer {
  display: none;
  padding: 0 1.5rem 1.25rem;
  color: var(--color-text);
  font-size: 0.95rem;
  line-height: 1.65;
  border-top: 1px dashed var(--color-border);
  padding-top: 1rem;
}

.faq-item.open .faq-answer {
  display: block;
  animation: fadeIn 0.25s ease;
}

.filter-search-wrap {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.25rem 1.5rem;
  margin-bottom: 2.5rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  box-shadow: var(--shadow-sm);
}

.search-input-box {
  position: relative;
  flex-grow: 1;
  min-width: 260px;
}

.search-input-box input {
  width: 100%;
  padding: 0.65rem 1rem 0.65rem 2.5rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-family: var(--font-sans);
  font-size: 0.9rem;
  outline: none;
  transition: border-color var(--transition-fast);
}

.search-input-box input:focus {
  border-color: var(--color-secondary);
  box-shadow: 0 0 0 3px rgba(13, 148, 136, 0.15);
}

.search-icon-inside {
  position: absolute;
  left: 0.85rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-light);
  font-size: 0.9rem;
}

.filter-pills {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.filter-pill {
  background-color: var(--color-surface-subtle);
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.45rem 0.9rem;
  border-radius: 9999px;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.filter-pill:hover, .filter-pill.active {
  background-color: var(--color-primary);
  color: #ffffff;
  border-color: var(--color-primary);
}

.policy-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2.5rem 3rem;
  box-shadow: var(--shadow-sm);
}

.policy-card h2 {
  font-size: 1.5rem;
  margin-top: 2rem;
  margin-bottom: 0.85rem;
  padding-bottom: 0.4rem;
  border-bottom: 1px solid var(--color-border);
}

.policy-card h3 {
  font-size: 1.2rem;
  margin-top: 1.5rem;
  margin-bottom: 0.5rem;
}

.policy-card ul, .policy-card ol {
  margin-bottom: 1.25rem;
  padding-left: 1.5rem;
}

.policy-card li {
  margin-bottom: 0.5rem;
}

.policy-meta-box {
  background-color: var(--color-surface-subtle);
  border-left: 4px solid var(--color-secondary);
  padding: 1rem 1.25rem;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin-bottom: 2rem;
  font-size: 0.875rem;
}

.data-table-container {
  overflow-x: auto;
  margin: 1.5rem 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.875rem;
}

.data-table th {
  background-color: var(--color-surface-subtle);
  color: var(--color-primary);
  font-weight: 700;
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--color-border);
}

.data-table td {
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text);
}

.data-table tr:last-child td {
  border-bottom: none;
}

.data-table tr:nth-child(even) {
  background-color: #fafbfc;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
}

.contact-info-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
}

.contact-detail-row {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.contact-icon-box {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background-color: #e0f2fe;
  color: #0369a1;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  flex-shrink: 0;
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 0.35rem;
}

.form-control {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  outline: none;
  transition: all var(--transition-fast);
  background-color: #ffffff;
}

.form-control:focus {
  border-color: var(--color-secondary);
  box-shadow: 0 0 0 3px rgba(13, 148, 136, 0.15);
}

textarea.form-control {
  min-height: 120px;
  resize: vertical;
}

.form-feedback {
  display: none;
  padding: 1rem;
  border-radius: var(--radius-md);
  margin-top: 1rem;
  font-size: 0.9rem;
}

.form-feedback.success {
  display: block;
  background-color: #d1fae5;
  color: #065f46;
  border: 1px solid #a7f3d0;
}

.form-feedback.error {
  display: block;
  background-color: #fee2e2;
  color: #991b1b;
  border: 1px solid #fecaca;
}

.site-footer {
  background-color: #06182e;
  color: #94a3b8;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 4rem;
  padding-bottom: 2rem;
  font-size: 0.875rem;
}

.footer-grid {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 2.5rem;
  margin-bottom: 3rem;
}

.footer-col h4 {
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #ffffff;
  margin-bottom: 1.25rem;
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-links li {
  margin-bottom: 0.65rem;
}

.footer-links a {
  color: #94a3b8;
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: #ffffff;
}

.footer-disclaimer-box {
  max-width: 1240px;
  margin: 0 auto;
  padding: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 0.775rem;
  line-height: 1.6;
  color: #64748b;
  text-align: justify;
}

.footer-bottom {
  max-width: 1240px;
  margin: 1.5rem auto 0;
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.8rem;
}

.scroll-top-btn {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 44px;
  height: 44px;
  background-color: var(--color-primary);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
  z-index: 90;
}

.scroll-top-btn.visible {
  opacity: 1;
  visibility: visible;
}

.scroll-top-btn:hover {
  background-color: var(--color-secondary-dark);
  transform: translateY(-3px);
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 992px) {
  .hero-grid { grid-template-columns: 1fr; gap: 2rem; }
  .hero-card-frame img { height: 320px; }
  .trust-grid { grid-template-columns: repeat(2, 1fr); }
  .trust-item:nth-child(2) { border-right: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .assessment-form-grid { grid-template-columns: 1fr; }
  .result-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .site-nav { display: none; }
  .mobile-menu-btn { display: block; }
  .hero-title { font-size: 2.15rem; }
  .policy-card { padding: 1.5rem; }
  .trust-grid { grid-template-columns: 1fr; }
  .trust-item { border-right: none; border-bottom: 1px solid var(--color-border); }
  .trust-item:last-child { border-bottom: none; }
  .footer-grid { grid-template-columns: 1fr; }
}