/* sheybklyn visual identity — TASK 021 + TASK 022 tightening */

:root,
[data-theme="light"] {
  color-scheme: light;
  --max-width: 1280px;
  --max-width-wide: 1440px;
  --bg: #e4e0d8;
  --surface: #ffffff;
  --surface-muted: #cfc6b6;
  --surface-elevated: #ffffff;
  --text: #1a1d21;
  --text-muted: #3d4652;
  --border: #b8aea0;
  --primary: #3f8f87;
  --primary-hover: #347870;
  --primary-btn: #2f6f68;
  --primary-btn-hover: #265a54;
  --primary-fg: #ffffff;
  --secondary: #e5e1d8;
  --secondary-hover: #d8d2c6;
  --outline: #3f8f87;
  --outline-hover: #347870;
  --accent: #3f8f87;
  --accent-soft: #5a9e97;
  --danger: #b42318;
  --danger-muted: #9a3412;
  --danger-bg: #fdf0ee;
  --danger-border: #e8b4ad;
  --accent-emergency: #b42318;
  --shadow: 0 1px 2px rgba(26, 29, 33, 0.06), 0 2px 8px rgba(26, 29, 33, 0.05);
  --shadow-lg: 0 6px 24px rgba(26, 29, 33, 0.1);
  --focus-ring: 0 0 0 3px color-mix(in srgb, var(--accent) 40%, transparent);
  --hero-pattern: color-mix(in srgb, var(--accent) 11%, transparent);
  --divider: linear-gradient(
    90deg,
    transparent 4%,
    color-mix(in srgb, var(--accent) 35%, var(--border)) 18%,
    color-mix(in srgb, var(--accent) 35%, var(--border)) 82%,
    transparent 96%
  );
  --card-padding: 1.4rem 1.5rem;
}

[data-theme="dark"] {
  color-scheme: dark;
  --max-width: 1280px;
  --max-width-wide: 1440px;
  --bg: #161a20;
  --surface: #252d38;
  --surface-muted: #1d232c;
  --surface-elevated: #2e3845;
  --text: #f8fafc;
  --text-muted: #d4dce8;
  --border: #3d4856;
  --primary: #4a9a92;
  --primary-hover: #5eb0a7;
  --primary-btn: #3a9289;
  --primary-btn-hover: #4aa89f;
  --primary-fg: #ffffff;
  --secondary: #1d232c;
  --secondary-hover: #252d38;
  --outline: #5eb0a7;
  --outline-hover: #72c4bb;
  --accent: #4a9a92;
  --accent-soft: #5eb0a7;
  --danger: #f97066;
  --danger-muted: #fca5a5;
  --danger-bg: #2d1818;
  --danger-border: #7a3f28;
  --accent-emergency: #f97066;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.35), 0 2px 10px rgba(0, 0, 0, 0.28);
  --shadow-lg: 0 8px 28px rgba(0, 0, 0, 0.42);
  --focus-ring: 0 0 0 3px color-mix(in srgb, var(--accent) 45%, transparent);
  --hero-pattern: color-mix(in srgb, var(--accent) 14%, transparent);
  --divider: linear-gradient(
    90deg,
    transparent 4%,
    color-mix(in srgb, var(--accent) 45%, var(--border)) 18%,
    color-mix(in srgb, var(--accent) 45%, var(--border)) 82%,
    transparent 96%
  );
  --card-padding: 1.4rem 1.5rem;
}

/* Typography */
.layout-public,
.layout-client {
  line-height: 1.65;
}

.layout-public p,
.layout-client p {
  line-height: 1.7;
  margin-bottom: 1rem;
}

.layout-public .section-header p,
.layout-client .section-header p {
  font-size: 1.0625rem;
  line-height: 1.6;
  max-width: 40rem;
}

.page-hero {
  background: var(--surface-muted);
  border-bottom: 1px solid var(--border);
}

.page-hero h1 {
  font-weight: 700;
  letter-spacing: -0.025em;
}

/* Links & buttons */
.layout-public a:not(.btn),
.layout-client a:not(.btn) {
  color: var(--primary);
}

.layout-public a:not(.btn):hover,
.layout-client a:not(.btn):hover {
  color: var(--primary-hover);
}

.text-link {
  color: var(--primary);
  font-weight: 600;
}

.text-link:hover {
  color: var(--primary-hover);
  text-decoration: none;
}

.layout-public .btn-primary,
.layout-client .btn-primary {
  background: var(--primary-btn);
  color: var(--primary-fg);
  border-color: var(--primary-btn);
  font-weight: 700;
  letter-spacing: 0.01em;
  text-shadow: 0 1px 0 rgba(0, 0, 0, 0.12);
}

.layout-public .btn-primary:hover,
.layout-client .btn-primary:hover {
  background: var(--primary-btn-hover);
  border-color: var(--primary-btn-hover);
  color: var(--primary-fg);
  text-decoration: none;
}

.header-public-actions .btn-primary.btn-sm {
  font-size: 0.9375rem;
  padding: 0.52rem 1.05rem;
}

/* Emergency Support CTA — TASK 023B */
.layout-public .btn-emergency-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  background: linear-gradient(180deg, #d64545 0%, #b92d2d 100%);
  color: #ffffff;
  font-weight: 700;
  border: 1px solid #e35a5a;
  box-shadow: 0 0 18px rgba(214, 69, 69, 0.25);
  transition:
    transform 0.15s ease,
    box-shadow 0.15s ease,
    background 0.15s ease,
    border-color 0.15s ease;
}

.layout-public .btn-emergency-cta:hover,
.layout-public .btn-emergency-cta:focus-visible {
  background: linear-gradient(180deg, #e85555 0%, #c73535 100%);
  color: #ffffff;
  border-color: #ec6868;
  box-shadow: 0 2px 22px rgba(214, 69, 69, 0.38);
  transform: translateY(-1px);
  text-decoration: none;
}

.layout-public .btn-emergency-cta .btn-emergency-cta-icon {
  display: inline-flex;
  align-items: center;
  line-height: 0;
}

.layout-public .btn-emergency-cta .btn-emergency-cta-icon .ui-icon {
  width: 1rem;
  height: 1rem;
  stroke: currentColor;
  flex-shrink: 0;
}

.layout-public .btn-emergency-cta.btn-lg .btn-emergency-cta-icon .ui-icon {
  width: 1.2rem;
  height: 1.2rem;
}

.layout-public .btn-emergency-cta.btn-sm {
  gap: 0.35rem;
}

/* Section layers */
.layout-public .section,
.layout-client .section {
  background: var(--bg);
}

.layout-public .section-muted,
.layout-client .section-muted {
  background: var(--surface-muted);
  border-top: 1px solid color-mix(in srgb, var(--border) 70%, var(--text) 8%);
  border-bottom: 1px solid color-mix(in srgb, var(--border) 70%, var(--text) 8%);
}

.layout-public .section-how-it-works,
.layout-public .page-hero {
  background: var(--surface-muted);
}

/* Section headers */
.section-header {
  margin-bottom: 1.75rem;
}

.section-header h2 {
  position: relative;
  padding-left: 1rem;
  margin: 0 0 0.6rem;
  font-size: clamp(1.45rem, 2.5vw, 1.875rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.3;
  color: var(--text);
}

.section-header h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.12em;
  bottom: 0.12em;
  width: 4px;
  border-radius: 2px;
  background: var(--accent);
}

.section-header h2::after {
  content: "";
  display: block;
  width: 3.25rem;
  height: 3px;
  margin-top: 0.55rem;
  margin-left: 0;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--accent), color-mix(in srgb, var(--accent) 40%, transparent));
}

.section-header p {
  margin: 0;
  padding-left: 1rem;
  color: var(--text-muted);
}

/* Unified cards */
.layout-public .card,
.layout-client .card,
.layout-public .content-card,
.layout-client .content-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--card-padding);
  box-shadow: var(--shadow);
}

.layout-public .content-card,
.layout-client .content-card {
  transition: border-color 0.18s ease, box-shadow 0.18s ease;
}

.layout-public .content-card:hover,
.layout-client .content-card:hover {
  border-color: color-mix(in srgb, var(--accent) 35%, var(--border));
  box-shadow: var(--shadow-lg);
}

.card-heading {
  margin: 0 0 0.6rem;
  font-size: 1.125rem;
  font-weight: 700;
  line-height: 1.35;
  color: var(--text);
}

.card-heading a {
  color: inherit;
  text-decoration: none;
}

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

/* Header — left logo/nav on grey band; actions on page background below */
.site-header-public {
  position: sticky;
  top: 0;
  z-index: 100;
  background: transparent;
  border: 0;
  box-shadow: none;
}

.header-shell {
  width: 100%;
}

.header-main-band {
  background: var(--surface-muted);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.header-action-band {
  display: flex;
  align-items: center;
  min-height: 3.5rem;
  background: color-mix(in srgb, var(--surface) 88%, transparent);
  border-bottom: 1px solid color-mix(in srgb, var(--border) 70%, transparent);
  padding: 0.5rem 0;
  backdrop-filter: blur(6px);
}

.header-action-band .header-public {
  display: flex;
  align-items: center;
  width: 100%;
  min-height: 2.75rem;
}

.header-public {
  padding: 0;
}

.header-brand-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.15rem 0 0.75rem;
}

.header-public-logo-link {
  display: inline-flex;
  align-items: center;
  justify-content: flex-start;
  flex-shrink: 0;
  padding: 0.25rem 0;
  margin: 0;
  border: none;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  line-height: 0;
  text-decoration: none;
}

.header-public-logo-link:hover,
.header-public-logo-link:focus-visible {
  text-decoration: none;
  background: transparent;
  border: none;
  box-shadow: none;
}

.header-public-logo-link:hover .brand-wordmark {
  opacity: 0.9;
}

.brand-wordmark {
  display: block;
  max-width: min(340px, 72vw);
  max-height: 64px;
  width: auto;
  height: auto;
  object-fit: contain;
  background: transparent;
  border: none;
  box-shadow: none;
  filter: none;
}

.header-brand-utilities {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  flex-shrink: 0;
  margin-left: auto;
}

.site-header-public .header-nav-panel.site-nav {
  display: block;
  width: 100%;
  padding: 0 0 0.85rem;
}

.site-header-public .nav-links-public {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-start;
  gap: 0.25rem 1.25rem;
  padding: 0;
  margin: 0;
}

.site-header-public .nav-links-public a {
  font-size: 1rem;
  font-weight: 500;
  color: var(--text);
  text-decoration: none;
  padding: 0.4rem 0.1rem;
  border-bottom: 2px solid transparent;
  white-space: nowrap;
}

.site-header-public .nav-links-public a:hover,
.site-header-public .nav-links-public a[aria-current="page"] {
  color: var(--primary);
  border-bottom-color: var(--accent);
  text-decoration: none;
}

.header-action-inner {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  align-self: stretch;
  width: 100%;
  min-height: 2.75rem;
}

.site-header-public .header-public-actions,
.site-header-public .nav-actions-public {
  display: inline-flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  align-content: center;
  gap: 0.75rem;
  width: 100%;
  margin-left: auto;
}

.site-header-public .header-public-actions .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  line-height: 1.25;
  vertical-align: middle;
}

.site-header-public .btn-emergency-cta .btn-emergency-cta-icon {
  display: inline-flex;
  align-items: center;
  line-height: 0;
}

.header-public-actions .btn-sm {
  font-size: 0.9375rem;
  padding: 0.5rem 0.95rem;
}

/* Hero */
.hero-home {
  position: relative;
  overflow: hidden;
  background: linear-gradient(
    165deg,
    color-mix(in srgb, var(--accent) 8%, var(--surface-muted)) 0%,
    var(--bg) 50%,
    var(--bg) 100%
  );
}

.hero-home::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.58;
  background-image:
    linear-gradient(var(--hero-pattern) 1px, transparent 1px),
    linear-gradient(90deg, var(--hero-pattern) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.65) 0%, transparent 92%);
}

.hero-home .container {
  position: relative;
  z-index: 1;
}

.hero-home h1 {
  font-size: clamp(2rem, 4.2vw, 2.75rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.2;
}

.hero-home .tagline {
  font-size: clamp(1.08rem, 2vw, 1.3rem);
  color: var(--text-muted);
  line-height: 1.45;
}

.hero-home .hero-description {
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--text-muted);
}

.hero-mark {
  filter: drop-shadow(0 10px 28px color-mix(in srgb, var(--accent) 22%, transparent));
}

/* Icons */
.ui-icon {
  flex-shrink: 0;
  color: var(--primary);
}

.service-card-icon,
.feature-icon-wrap,
.trust-icon-wrap {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.35rem;
  height: 2.35rem;
  margin-bottom: 0.75rem;
  border-radius: 9px;
  background: color-mix(in srgb, var(--accent) 12%, var(--surface));
  border: 1px solid color-mix(in srgb, var(--accent) 25%, var(--border));
  color: var(--primary);
}

.service-card:hover .service-card-icon {
  background: color-mix(in srgb, var(--accent) 20%, var(--surface));
}

/* Section components */
.section-panel {
  padding: 1.65rem 1.85rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.section-panel-muted {
  background: var(--surface-muted);
}

.section-divider {
  height: 2px;
  border: 0;
  margin: 0;
  background: var(--divider);
  opacity: 1;
}

.feature-strip {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.feature-strip-item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem 1.1rem;
  padding: 1.1rem 1.3rem;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}

.feature-strip-item:nth-child(even) {
  background: color-mix(in srgb, var(--surface-muted) 35%, var(--surface));
}

.feature-strip-item:last-child {
  border-bottom: 0;
}

.feature-strip-item .feature-icon-wrap {
  margin-bottom: 0;
}

.feature-strip-item strong {
  display: block;
  margin-bottom: 0.2rem;
  font-size: 1rem;
  color: var(--text);
}

.feature-strip-item p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.55;
  color: var(--text-muted);
}

.icon-row-item {
  padding: 0.85rem 0;
}

.callout {
  border-left: 4px solid var(--accent);
  background: color-mix(in srgb, var(--accent) 7%, var(--surface));
  padding: 1.25rem 1.5rem;
  line-height: 1.65;
}

.cta-banner,
.cta-banner-primary {
  background: var(--surface);
  border: 1px solid color-mix(in srgb, var(--accent) 28%, var(--border));
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 1.35rem 1.5rem;
}

.service-area-panel {
  background: var(--surface);
  border: 1px solid var(--border);
}

.service-area-card {
  background: color-mix(in srgb, var(--accent) 7%, var(--surface));
  border-color: color-mix(in srgb, var(--accent) 22%, var(--border));
}

.steps-list-item {
  background: var(--surface);
  border-color: var(--border);
}

.steps-list-num {
  background: color-mix(in srgb, var(--accent) 14%, var(--surface));
  color: var(--primary);
  border: 1px solid color-mix(in srgb, var(--accent) 30%, var(--border));
}

.steps-list-title {
  font-weight: 700;
}

.notice-card,
.notice-panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.35rem 1.5rem;
}

/* Footer */
.site-footer {
  background: var(--surface-muted);
  border-top: 1px solid var(--border);
}

.footer-brand-name {
  color: var(--text);
}

.footer-brand-tagline,
.footer-area-summary {
  color: var(--text-muted);
  line-height: 1.6;
}

/* Admin */
.layout-admin {
  --admin-accent: var(--accent);
}

.layout-admin .admin-sidebar,
.layout-admin .admin-topbar {
  background: var(--surface-muted);
}

.layout-admin .card {
  background: var(--surface);
  border-color: var(--border);
}

.layout-admin .admin-nav-link.is-active {
  background: color-mix(in srgb, var(--accent) 14%, var(--surface));
  color: var(--primary);
}

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

.layout-admin .dashboard-group-header h2::after {
  content: "";
  display: block;
  width: 2rem;
  height: 2px;
  margin-top: 0.4rem;
  border-radius: 999px;
  background: var(--accent);
}

.layout-admin .stat-card-link:hover {
  border-color: color-mix(in srgb, var(--accent) 40%, var(--border));
}

.layout-admin .btn-primary {
  background: var(--primary);
  color: var(--primary-fg);
}

.kb-subheading {
  font-weight: 700;
  color: var(--text);
}

.kb-meta {
  color: var(--text-muted);
}

.section-cta-row {
  margin-top: 1.5rem;
}

/* Mobile header */
@media (max-width: 900px) {
  .header-brand-row {
    padding: 0.95rem 0 0.65rem;
  }

  .header-public-logo-link {
    flex: 1;
    min-width: 0;
  }

  .brand-wordmark {
    max-width: min(240px, 62vw);
    max-height: 52px;
  }

  .header-public-nav-toggle {
    display: flex;
  }

  .site-header-public .header-nav-panel {
    display: none;
    padding: 0;
    border-top: 1px solid var(--border);
    margin-bottom: 0.75rem;
  }

  .site-header-public .header-nav-panel.is-open {
    display: block;
  }

  .site-header-public .nav-links-public {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 0.35rem 0 0.5rem;
  }

  .site-header-public .nav-links-public a {
    padding: 0.65rem 0.25rem;
    border-bottom: 1px solid var(--border);
  }

  .header-action-band {
    min-height: 3.25rem;
    padding: 0.45rem 0;
  }

  .site-header-public .header-public-actions,
  .site-header-public .nav-actions-public {
    justify-content: flex-end;
  }
}

@media (min-width: 901px) {
  .header-public-nav-toggle {
    display: none;
  }

  .site-header-public .header-nav-panel {
    display: block;
  }
}

@media (max-width: 640px) {
  .section-header h2 {
    font-size: 1.4rem;
  }
}