:root {
  --bg-canvas: #182c25;
  --bg-surface: #243c31;
  --bg-surface-hover: #2c493c;
  --text-primary: #e4f2e7;
  --text-muted: #b0ccb7;
  --accent-primary: #ff6f59;
  --accent-secondary: #d49a6a;
  --border-subtle: rgba(228, 242, 231, 0.16);
  --ease-kinetic: cubic-bezier(0.16, 1, 0.3, 1);
  --shadow-elevation: 0 12px 32px -4px rgba(10, 20, 16, 0.45);
  --glow-accent: 0 0 24px -4px rgba(255, 111, 89, 0.35);
  --glass-backdrop: blur(16px) saturate(180%);
  --font-serif: Charter, Cambria, Georgia, serif;
}

*, *::before, *::after {
  box-sizing: border-box;
  border-radius: 0 !important;
}

html, body {
  margin: 0;
  padding: 0;
  background-color: var(--bg-canvas);
  color: var(--text-primary);
  font-family: var(--font-serif);
  line-height: 1.65;
  overflow-wrap: anywhere;
  hyphens: auto;
}

body {
  padding: 24px;
}

.page-frame {
  border: 1px solid var(--border-subtle);
  max-width: 1200px;
  margin: 0 auto;
  background-color: var(--bg-canvas);
  box-shadow: var(--shadow-elevation);
  position: relative;
}

a {
  color: var(--accent-primary);
  text-decoration: underline;
  text-underline-offset: 4px;
  transition: color 0.2s ease;
}

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

h1, h2, h3, h4 {
  font-weight: 600;
  line-height: 1.25;
  margin-top: 0;
  color: var(--text-primary);
}

h1 {
  font-size: clamp(2rem, 4vw, 3.1rem);
  margin-bottom: 1rem;
  letter-spacing: -0.01em;
}

h2 {
  font-size: clamp(1.5rem, 2.8vw, 2.2rem);
  margin-bottom: 1rem;
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 0.5rem;
}

h3 {
  font-size: 1.3rem;
  margin-bottom: 0.5rem;
}

p {
  margin-top: 0;
  margin-bottom: 1.2rem;
}

.small-caps, .meta-label {
  font-variant: small-caps;
  letter-spacing: 0.08em;
  text-transform: lowercase;
  font-size: 0.92rem;
  color: var(--accent-secondary);
  display: block;
  margin-bottom: 0.35rem;
  font-weight: 600;
}

/* Header & Navigation */
.site-header {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 2rem;
  border-bottom: 1px solid var(--border-subtle);
  background: var(--bg-surface);
  gap: 1.5rem;
}

.brand-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--text-primary);
  font-weight: 700;
  font-size: 1.2rem;
  letter-spacing: 0.02em;
  flex-shrink: 0;
}

.brand-mark {
  width: 28px;
  height: 28px;
  background-color: var(--accent-primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #182c25;
  font-weight: 700;
  font-size: 0.95rem;
  box-shadow: 3px 3px 0 var(--accent-secondary);
}

.nav-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-grow: 1;
  gap: 2rem;
}

.nav-group {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-group a {
  text-decoration: none;
  color: var(--text-primary);
  font-size: 0.98rem;
  padding: 0.25rem 0;
  border-bottom: 2px solid transparent;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.nav-group a:hover, .nav-group a[aria-current="page"] {
  color: var(--accent-primary);
  border-bottom-color: var(--accent-primary);
}

.mobile-menu-btn {
  display: none;
  background: var(--bg-canvas);
  color: var(--text-primary);
  border: 1px solid var(--border-subtle);
  padding: 0.4rem 0.8rem;
  font-size: 1.3rem;
  cursor: pointer;
  line-height: 1;
}

/* Main Content */
main {
  padding: 2.5rem 2rem;
}

.prose-block {
  max-width: 70ch;
  margin: 0 auto 2.5rem auto;
}

/* Buttons */
.btn-coral {
  display: inline-block;
  background-color: var(--accent-primary);
  color: #182c25;
  font-family: var(--font-serif);
  font-weight: 700;
  text-decoration: none;
  padding: 0.75rem 1.5rem;
  border: none;
  cursor: pointer;
  box-shadow: 4px 4px 0 #e4f2e7;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background-color 0.15s ease;
  font-size: 1rem;
}

.btn-coral:hover {
  color: #182c25;
  background-color: #ff826e;
  transform: translate(4px, 4px);
  box-shadow: 0 0 0 #e4f2e7;
}

.btn-secondary {
  display: inline-block;
  background-color: var(--bg-canvas);
  color: var(--text-primary);
  border: 1px solid var(--accent-primary);
  padding: 0.7rem 1.4rem;
  text-decoration: none;
  font-family: var(--font-serif);
  cursor: pointer;
  box-shadow: 4px 4px 0 var(--accent-primary);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.btn-secondary:hover {
  transform: translate(4px, 4px);
  box-shadow: 0 0 0 var(--accent-primary);
  color: var(--accent-primary);
}

/* Hero Section */
.hero-salon {
  position: relative;
  display: grid;
  grid-template-columns: 1.3fr 0.9fr;
  gap: 2rem;
  align-items: center;
  margin-bottom: 3.5rem;
  background: var(--bg-surface);
  padding: 2rem;
  box-shadow: var(--shadow-elevation);
}

.hero-visual {
  position: relative;
}

.hero-visual img {
  width: 100%;
  height: 400px;
  object-fit: cover;
  display: block;
}

.hero-facts-panel {
  background: rgba(24, 44, 37, 0.94);
  backdrop-filter: var(--glass-backdrop);
  padding: 1.5rem;
  border-left: 4px solid var(--accent-primary);
  box-shadow: var(--shadow-elevation);
  margin-top: -3.5rem;
  margin-left: 1.5rem;
  margin-right: 1rem;
  position: relative;
  z-index: 2;
}

.facts-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1rem;
}

.facts-list li {
  font-size: 0.92rem;
}

.facts-list strong {
  display: block;
  color: var(--accent-primary);
  font-variant: small-caps;
  font-size: 1.05rem;
}

/* Bento Grid System */
.bento-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-bottom: 3rem;
}

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

.tile-span-2 {
  grid-column: span 2;
}

.tile-row-2 {
  grid-row: span 2;
}

.bento-tile {
  background-color: var(--bg-surface);
  padding: 1.75rem;
  box-shadow: var(--shadow-elevation);
  transition: transform 0.35s var(--ease-kinetic), box-shadow 0.35s var(--ease-kinetic), background-color 0.25s ease;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.bento-tile:hover {
  transform: translateY(-5px) scale(1.01);
  background-color: var(--bg-surface-hover);
  box-shadow: var(--shadow-elevation), var(--glow-accent);
}

.bento-tile img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  margin-bottom: 1.25rem;
  display: block;
}

.bento-tile.compact-img img {
  height: 160px;
}

/* Inventory & Layered Diagrams */
.inventory-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.25rem;
  margin: 2rem 0;
}

.inventory-card {
  background: var(--bg-surface);
  padding: 1.25rem;
  box-shadow: var(--shadow-elevation);
}

.inventory-card img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  margin-bottom: 0.75rem;
}

.diagram-layers {
  background: var(--bg-surface);
  padding: 2rem;
  margin: 2rem 0;
  box-shadow: var(--shadow-elevation);
}

.layer-row {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 1.5rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--border-subtle);
  align-items: center;
}

.layer-row:last-child {
  border-bottom: none;
}

.layer-badge {
  background: var(--bg-canvas);
  color: var(--accent-primary);
  padding: 0.5rem 0.75rem;
  font-variant: small-caps;
  font-weight: 700;
  text-align: center;
  border-left: 3px solid var(--accent-primary);
}

/* Tables */
.table-wrapper {
  overflow-x: auto;
  margin: 2rem 0;
  background: var(--bg-surface);
  padding: 1rem;
  box-shadow: var(--shadow-elevation);
}

table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.95rem;
}

th, td {
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--border-subtle);
}

th {
  font-variant: small-caps;
  color: var(--accent-secondary);
  font-size: 1.05rem;
  background: rgba(24, 44, 37, 0.5);
}

/* FAQ Disclosures */
.faq-list {
  max-width: 72ch;
  margin: 0 auto;
}

details.faq-item {
  background: var(--bg-surface);
  margin-bottom: 1rem;
  padding: 1.25rem 1.5rem;
  box-shadow: var(--shadow-elevation);
  transition: background-color 0.2s ease;
}

details.faq-item[open] {
  background: var(--bg-surface-hover);
  border-left: 4px solid var(--accent-primary);
}

details.faq-item summary {
  font-weight: 600;
  font-size: 1.15rem;
  cursor: pointer;
  color: var(--text-primary);
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

details.faq-item summary::after {
  content: "+";
  color: var(--accent-primary);
  font-size: 1.4rem;
  font-weight: 700;
}

details.faq-item[open] summary::after {
  content: "−";
}

details.faq-item .faq-answer {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-subtle);
  color: var(--text-muted);
}

/* Forms */
.form-grid {
  display: grid;
  gap: 1.25rem;
  background: var(--bg-surface);
  padding: 2rem;
  box-shadow: var(--shadow-elevation);
  max-width: 68ch;
  margin: 0 auto;
}

.form-group label {
  display: block;
  font-variant: small-caps;
  margin-bottom: 0.4rem;
  color: var(--accent-secondary);
}

.form-group input, .form-group select, .form-group textarea {
  width: 100%;
  padding: 0.75rem;
  background: var(--bg-canvas);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  font-family: var(--font-serif);
  font-size: 1rem;
}

.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  outline: 2px solid var(--accent-primary);
}

.output-panel {
  background: var(--bg-canvas);
  padding: 1.25rem;
  border: 1px solid var(--accent-primary);
  margin-top: 1.5rem;
  white-space: pre-wrap;
  font-size: 0.92rem;
}

/* Scroll Reveal */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.65s var(--ease-kinetic), transform 0.65s var(--ease-kinetic);
}

.reveal-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Footer */
.site-footer {
  background: var(--bg-surface);
  border-top: 1px solid var(--border-subtle);
  padding: 3rem 2rem 2rem 2rem;
  margin-top: 3rem;
  font-size: 0.92rem;
  color: var(--text-muted);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-bottom {
  border-top: 1px solid var(--border-subtle);
  padding-top: 1.5rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem;
}

/* Responsive Breakpoints */
@media (max-width: 1024px) {
  .bento-grid-featured {
    grid-template-columns: repeat(2, 1fr);
  }
  .hero-salon {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  body {
    padding: 10px;
  }
  .site-header {
    padding: 1rem 1.25rem;
  }
  .mobile-menu-btn {
    display: block;
  }
  .nav-wrapper {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-surface);
    border-bottom: 2px solid var(--accent-primary);
    padding: 1.5rem;
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
    z-index: 20;
    box-shadow: var(--shadow-elevation);
  }
  .nav-wrapper.is-open {
    display: flex;
  }
  .nav-group {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.85rem;
    width: 100%;
  }
  .bento-grid-featured {
    grid-template-columns: 1fr;
  }
  .tile-span-2 {
    grid-column: span 1;
  }
  .layer-row {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }
}

@media (max-width: 480px) {
  main {
    padding: 1.5rem 1rem;
  }
  .hero-salon {
    padding: 1.25rem;
  }
  .hero-facts-panel {
    margin-left: 0.5rem;
    margin-right: 0.5rem;
  }
}

@media (prefers-reduced-motion: reduce){*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}