/* Human Architecture — Equipment-Free Movement */

:root {
  --color-canvas: #F4F0EA;
  --color-umber: #1E1B18;
  --color-terra: #D36135;
  --color-ash: #DFD9CE;
  --color-ash-deep: #C9C2B6;
  --color-overlay: rgba(30, 27, 24, 0.72);
  --color-glass: rgba(244, 240, 234, 0.88);
  --font-display: 'Instrument Serif', Georgia, serif;
  --font-mono: 'Space Mono', monospace;
  --space-xs: 0.375rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 2rem;
  --space-xl: 3.5rem;
  --space-2xl: 5rem;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --shadow-soft: 0 4px 24px rgba(30, 27, 24, 0.08);
  --shadow-deep: 0 12px 40px rgba(30, 27, 24, 0.14);
  --transition-fast: 0.25s ease;
  --transition-smooth: 0.45s cubic-bezier(0.4, 0, 0.2, 1);
  --max-content: 72rem;
  --header-height: 4.5rem;
  --grid-line: 1px solid var(--color-ash);
}

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

html {
  font-size: 100%;
  overflow-x: hidden;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  line-height: 1.65;
  color: var(--color-umber);
  background-color: var(--color-canvas);
  min-height: 100vh;
  overflow-x: hidden;
}

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

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

a:hover,
a:focus-visible {
  color: var(--color-umber);
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--color-terra);
  outline-offset: 2px;
}

ul {
  list-style: none;
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  font-weight: 400;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(2.25rem, 5vw, 3.75rem);
}

h2 {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
}

h3 {
  font-size: clamp(1.25rem, 2.5vw, 1.625rem);
}

p {
  margin-bottom: var(--space-md);
}

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

/* Structural blueprint lines */
.blueprint-grid {
  background-image:
    linear-gradient(var(--color-ash) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-ash) 1px, transparent 1px);
  background-size: 2.5rem 2.5rem;
}

/* Header */
.site-header {
  position: relative;
  z-index: 100;
  padding: var(--space-md) var(--space-lg);
  border-bottom: var(--grid-line);
  background: var(--color-glass);
  backdrop-filter: blur(12px);
}

.header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  max-width: var(--max-content);
  margin: 0 auto;
}

.brand-mark {
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 2.5vw, 1.45rem);
  color: var(--color-umber);
  text-decoration: none;
  flex-shrink: 0;
  letter-spacing: -0.03em;
}

.brand-mark:hover {
  color: var(--color-terra);
}

.nav-desktop {
  display: none;
}

.nav-desktop ul {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm) var(--space-lg);
  align-items: center;
  justify-content: center;
}

.nav-desktop a {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-umber);
}

.nav-desktop a:hover {
  color: var(--color-terra);
}

.burger-trigger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 2.5rem;
  height: 2.5rem;
  padding: var(--space-sm);
  background: var(--color-umber);
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  flex-shrink: 0;
  margin-left: auto;
  transition: background var(--transition-fast);
}

.burger-trigger:hover {
  background: var(--color-terra);
}

.burger-line {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-canvas);
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.burger-trigger.is-active .burger-line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.burger-trigger.is-active .burger-line:nth-child(2) {
  opacity: 0;
}

.burger-trigger.is-active .burger-line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

@media (min-width: 1024px) {
  .nav-desktop {
    display: block;
    flex: 1;
    margin: 0 var(--space-lg);
  }

  .burger-trigger {
    display: none;
  }
}

/* Mobile nav panel — separate from header */
.nav-overlay {
  position: fixed;
  inset: 0;
  background: var(--color-overlay);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-smooth), visibility var(--transition-smooth);
  z-index: 200;
}

.nav-overlay.is-open {
  opacity: 1;
  visibility: visible;
}

.nav-drawer {
  position: fixed;
  top: 0;
  right: 0;
  width: min(20rem, 88vw);
  height: 100vh;
  background: var(--color-canvas);
  border-left: var(--grid-line);
  padding: var(--space-2xl) var(--space-lg) var(--space-lg);
  transform: translateX(100%);
  transition: transform var(--transition-smooth);
  z-index: 210;
  overflow-y: auto;
}

.nav-drawer.is-open {
  transform: translateX(0);
}

.nav-drawer ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.nav-drawer a {
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: var(--color-umber);
}

.nav-drawer-close {
  position: absolute;
  top: var(--space-md);
  right: var(--space-md);
  width: 2.25rem;
  height: 2.25rem;
  border: var(--grid-line);
  background: transparent;
  cursor: pointer;
  font-size: 1.25rem;
  line-height: 1;
  color: var(--color-umber);
}

/* Main layout */
main {
  min-height: 50vh;
}

.section-wrap {
  max-width: var(--max-content);
  margin: 0 auto;
  padding: var(--space-xl) var(--space-lg);
}

.section-label {
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--color-terra);
  margin-bottom: var(--space-sm);
}

.section-heading {
  margin-bottom: var(--space-lg);
  max-width: 40rem;
}

.section-intro {
  max-width: 38rem;
  margin-bottom: var(--space-lg);
  color: rgba(30, 27, 24, 0.85);
}

/* Full-width banner */
.banner-full {
  position: relative;
  width: 100vw;
  margin-left: calc(50% - 50vw);
  min-height: clamp(18rem, 45vh, 28rem);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  border-bottom: var(--grid-line);
}

.banner-media {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.banner-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(0.35) contrast(1.05);
}

.banner-scrim {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(
    135deg,
    rgba(30, 27, 24, 0.78) 0%,
    rgba(30, 27, 24, 0.45) 50%,
    rgba(211, 97, 53, 0.25) 100%
  );
}

.banner-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: var(--space-xl) var(--space-lg);
  max-width: 44rem;
  color: var(--color-canvas);
}

.banner-content h1,
.banner-content p {
  color: inherit;
}

.banner-content p {
  font-size: 0.9375rem;
  opacity: 0.92;
  margin-top: var(--space-md);
}

/* Buttons */
.btn-primary,
.btn-secondary {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
  border: 1px solid transparent;
  text-align: center;
}

.btn-primary {
  background: var(--color-terra);
  color: var(--color-canvas);
  border-color: var(--color-terra);
}

.btn-primary:hover {
  background: var(--color-umber);
  border-color: var(--color-umber);
  color: var(--color-canvas);
}

.btn-secondary {
  background: transparent;
  color: var(--color-umber);
  border-color: var(--color-umber);
}

.btn-secondary:hover {
  background: var(--color-umber);
  color: var(--color-canvas);
}

.banner-content .btn-primary {
  margin-top: var(--space-lg);
}

/* Card grids */
.grid-two {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
  align-items: center;
}

.grid-three {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
}

@media (min-width: 640px) {
  .grid-two {
    grid-template-columns: 1fr 1fr;
  }

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

@media (min-width: 900px) {
  .grid-three {
    grid-template-columns: repeat(3, 1fr);
  }
}

.content-card {
  border: var(--grid-line);
  background: var(--color-canvas);
  padding: var(--space-lg);
  transition: box-shadow var(--transition-fast);
}

.content-card:hover {
  box-shadow: var(--shadow-soft);
}

.card-thumb {
  aspect-ratio: 4 / 3;
  overflow: hidden;
  margin-bottom: var(--space-md);
  border: var(--grid-line);
}

.card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(0.4);
  transition: filter var(--transition-smooth);
}

.content-card:hover .card-thumb img {
  filter: grayscale(0.15);
}

/* Split section with image */
.split-block {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
  align-items: center;
  border-top: var(--grid-line);
  border-bottom: var(--grid-line);
}

.split-visual {
  aspect-ratio: 16 / 10;
  max-height: 16rem;
  overflow: hidden;
  border: var(--grid-line);
}

.split-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(0.35);
}

@media (min-width: 768px) {
  .split-block {
    grid-template-columns: 1fr 1fr;
  }

  .split-block.reverse .split-copy {
    order: 2;
  }

  .split-block.reverse .split-visual {
    order: 1;
  }

  .split-visual {
    max-height: 20rem;
  }
}

/* Skill tree */
.skill-tree-wrap {
  position: relative;
  padding: var(--space-lg) 0;
  overflow-x: auto;
}

.skill-tree {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  min-width: min(100%, 40rem);
}

.skill-node {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-md);
  align-items: start;
  padding: var(--space-md);
  border: var(--grid-line);
  background: rgba(223, 217, 206, 0.25);
  cursor: pointer;
  transition: border-color var(--transition-fast), background var(--transition-fast);
}

.skill-node:hover,
.skill-node.is-selected {
  border-color: var(--color-terra);
  background: rgba(211, 97, 53, 0.08);
}

.skill-marker {
  width: 2rem;
  height: 2rem;
  border: 2px solid var(--color-terra);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.6875rem;
  font-weight: 700;
  flex-shrink: 0;
}

.skill-connector {
  width: 2px;
  height: var(--space-md);
  background: var(--color-ash);
  margin-left: 0.9375rem;
}

.skill-detail-panel {
  margin-top: var(--space-lg);
  padding: var(--space-lg);
  border: 2px solid var(--color-umber);
  background: var(--color-canvas);
  min-height: 8rem;
}

/* Anatomy silhouette */
.anatomy-stage {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
  align-items: start;
}

@media (min-width: 768px) {
  .anatomy-stage {
    grid-template-columns: 1fr 1.2fr;
  }
}

.body-silhouette {
  position: relative;
  max-width: 16rem;
  margin: 0 auto;
  aspect-ratio: 1 / 2.2;
  border: var(--grid-line);
  background: linear-gradient(180deg, var(--color-ash) 0%, var(--color-ash-deep) 100%);
}

.body-silhouette::before {
  content: "";
  position: absolute;
  top: 8%;
  left: 50%;
  transform: translateX(-50%);
  width: 22%;
  height: 12%;
  border-radius: 50%;
  background: var(--color-umber);
  opacity: 0.15;
}

.body-silhouette::after {
  content: "";
  position: absolute;
  top: 20%;
  left: 50%;
  transform: translateX(-50%);
  width: 48%;
  height: 58%;
  border-radius: 40% 40% 35% 35%;
  background: var(--color-umber);
  opacity: 0.12;
}

.body-zone {
  position: absolute;
  border: 2px dashed transparent;
  cursor: pointer;
  transition: background var(--transition-fast), border-color var(--transition-fast);
}

.body-zone:hover,
.body-zone.is-active {
  background: rgba(211, 97, 53, 0.35);
  border-color: var(--color-terra);
}

.zone-core {
  top: 32%;
  left: 28%;
  width: 44%;
  height: 18%;
}

.zone-scapula {
  top: 18%;
  left: 18%;
  width: 64%;
  height: 14%;
}

.zone-glutes {
  top: 52%;
  left: 22%;
  width: 56%;
  height: 14%;
}

.zone-legs {
  top: 68%;
  left: 30%;
  width: 40%;
  height: 22%;
}

.anatomy-cue-box {
  padding: var(--space-lg);
  border: var(--grid-line);
  min-height: 12rem;
}

.anatomy-cue-box h3 {
  margin-bottom: var(--space-md);
  color: var(--color-terra);
}

/* Tempo architect */
.tempo-panel {
  border: 2px solid var(--color-umber);
  padding: var(--space-lg);
  background: rgba(223, 217, 206, 0.2);
}

.tempo-controls {
  display: grid;
  gap: var(--space-lg);
  margin-bottom: var(--space-lg);
}

.tempo-slider-group label {
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
  margin-bottom: var(--space-sm);
}

.tempo-slider-group input[type="range"] {
  width: 100%;
  accent-color: var(--color-terra);
}

.tempo-output {
  padding: var(--space-md);
  background: var(--color-umber);
  color: var(--color-canvas);
  font-size: 0.8125rem;
  line-height: 1.6;
}

/* Journal */
.journal-entry {
  border-top: var(--grid-line);
  padding: var(--space-xl) 0;
}

.journal-entry:first-of-type {
  border-top: none;
  padding-top: 0;
}

.audio-block {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md);
  background: var(--color-ash);
  margin-bottom: var(--space-lg);
  border: var(--grid-line);
}

.audio-block audio {
  flex: 1;
  max-width: 100%;
  height: 2.5rem;
}

/* Products */
.product-card {
  text-align: center;
  border: var(--grid-line);
  padding: var(--space-lg);
}

.product-price {
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: var(--color-terra);
  margin: var(--space-md) 0;
}

/* Contact */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
}

@media (min-width: 768px) {
  .contact-layout {
    grid-template-columns: 1fr 1fr;
  }
}

.form-stack {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.form-stack label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.form-stack input,
.form-stack textarea {
  width: 100%;
  padding: 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  border: var(--grid-line);
  background: var(--color-canvas);
  color: var(--color-umber);
}

.form-stack textarea {
  min-height: 8rem;
  resize: vertical;
}

.consent-row {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  font-size: 0.75rem;
}

.consent-row input {
  margin-top: 0.2rem;
  accent-color: var(--color-terra);
}

.contact-info-block {
  padding: var(--space-lg);
  border: var(--grid-line);
  background: rgba(223, 217, 206, 0.3);
}

.contact-info-block p {
  margin-bottom: var(--space-sm);
}

.map-embed {
  width: 100%;
  aspect-ratio: 16 / 10;
  max-height: 14rem;
  border: var(--grid-line);
  margin-top: var(--space-lg);
}

.map-embed iframe {
  width: 100%;
  height: 100%;
  border: 0;
}

/* Thank you & 404 */
.status-page {
  text-align: center;
  padding: var(--space-2xl) var(--space-lg);
  max-width: 36rem;
  margin: 0 auto;
}

.status-page h1 {
  margin-bottom: var(--space-md);
}

/* Legal */
.legal-main {
  max-width: 42rem;
  margin: 0 auto;
  padding: var(--space-xl) var(--space-lg) var(--space-2xl);
}

.legal-main h1 {
  margin-bottom: var(--space-md);
}

.legal-main h2 {
  font-size: 1.25rem;
  margin: var(--space-lg) 0 var(--space-md);
}

.legal-main .date {
  font-size: 0.75rem;
  color: rgba(30, 27, 24, 0.65);
  margin-bottom: var(--space-lg);
}

.legal-main ul {
  list-style: disc;
  margin: var(--space-md) 0 var(--space-md) 1.25rem;
}

.legal-main li {
  margin-bottom: var(--space-sm);
}

/* Footer */
.site-footer {
  border-top: var(--grid-line);
  padding: var(--space-lg);
  background: var(--color-umber);
  color: var(--color-canvas);
}

.footer-inner {
  max-width: var(--max-content);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  align-items: center;
  text-align: center;
}

.footer-nav ul {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-sm) var(--space-md);
}

.footer-nav a,
.footer-legal a {
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-ash);
}

.footer-nav a:hover,
.footer-legal a:hover {
  color: var(--color-canvas);
}

.footer-legal {
  padding-top: var(--space-md);
  border-top: 1px solid rgba(223, 217, 206, 0.25);
  width: 100%;
}

.footer-legal ul {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-sm) var(--space-md);
}

.footer-meta {
  font-size: 0.6875rem;
  opacity: 0.7;
}

.footer-meta a {
  color: var(--color-ash);
}

/* Privacy popup */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 300;
  padding: var(--space-md) var(--space-lg);
  background: var(--color-umber);
  color: var(--color-canvas);
  transform: translateY(100%);
  transition: transform var(--transition-smooth);
  box-shadow: var(--shadow-deep);
}

.cookie-banner.is-visible {
  transform: translateY(0);
}

.cookie-inner {
  max-width: var(--max-content);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  align-items: flex-start;
}

@media (min-width: 640px) {
  .cookie-inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

.cookie-inner p {
  font-size: 0.75rem;
  margin: 0;
  flex: 1;
}

.cookie-actions {
  display: flex;
  gap: var(--space-sm);
  flex-shrink: 0;
}

.cookie-actions .btn-primary,
.cookie-actions .btn-secondary {
  padding: 0.5rem 1rem;
  font-size: 0.6875rem;
}

.cookie-actions .btn-secondary {
  color: var(--color-canvas);
  border-color: var(--color-ash);
}

.cookie-actions .btn-secondary:hover {
  background: var(--color-canvas);
  color: var(--color-umber);
}

/* Utility */
.text-center {
  text-align: center;
}

.intro-centered {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  justify-content: center;
  margin-top: var(--space-lg);
}

.mt-lg {
  margin-top: var(--space-lg);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.kinetic-headline {
  opacity: 0.65;
  transform: translateY(0.75rem);
  transition: opacity var(--transition-smooth), transform var(--transition-smooth);
}

.kinetic-headline.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 320px) {
  .section-wrap {
    padding: var(--space-lg) var(--space-md);
  }

  .banner-content {
    padding: var(--space-lg) var(--space-md);
  }
}