/* Linear kinetic layout — Deep Carbon / Steel Mist / Electric Lime */

:root {
  --primary: #f1f5f9;
  --secondary: #475569;
  --accent: #d9f99d;
  --bg: #0f172a;
  --surface: #1e293b;
  --line: rgba(217, 249, 157, 0.22);
  --shadow: 0 1rem 2.5rem rgba(0, 0, 0, 0.45);
  --font-sans: system-ui, "Segoe UI", Roboto, Ubuntu, sans-serif;
  --header-h: 4.25rem;
  --max: 72rem;
  --space: clamp(1rem, 4vw, 2.5rem);
}

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

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

body {
  margin: 0;
  min-height: 100vh;
  overflow-x: hidden;
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--primary);
  line-height: 1.55;
}

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

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.2s ease, text-shadow 0.2s ease, border-color 0.2s ease;
}

a:hover,
a:focus-visible {
  color: #e8ffc4;
  text-shadow: 0 0 0.75rem rgba(217, 249, 157, 0.35);
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 10000;
  padding: 0.75rem 1rem;
  background: var(--accent);
  color: var(--bg);
}

.skip-link:focus {
  left: 0.5rem;
  top: 0.5rem;
}

/* —— Site header (burger last) —— */
.site-header {
  position: sticky;
  top: 0;
  z-index: 900;
  min-height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.65rem var(--space);
  background: rgba(15, 23, 42, 0.92);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(10px);
}

.brand-text {
  font-weight: 600;
  font-size: clamp(0.95rem, 2.5vw, 1.1rem);
  letter-spacing: 0.02em;
  color: var(--primary);
  white-space: nowrap;
}

.brand-text:hover {
  text-shadow: 0 0 0.6rem rgba(241, 245, 249, 0.25);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex: 1;
  gap: 0.75rem;
  min-width: 0;
}

.nav-desktop {
  display: none;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.35rem 1rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-desktop a {
  color: var(--secondary);
  font-size: 0.9rem;
  padding: 0.35rem 0;
  border-bottom: 1px solid transparent;
}

.nav-desktop a:hover {
  border-bottom-color: var(--accent);
  color: var(--primary);
}

.nav-legal-desktop {
  display: none;
  flex-wrap: wrap;
  justify-content: flex-end;
  align-items: center;
  gap: 0.35rem 0.85rem;
  list-style: none;
  margin: 0;
  padding: 0;
  border-left: 1px solid var(--line);
  padding-left: 0.85rem;
}

.nav-legal-desktop a {
  color: var(--secondary);
  font-size: 0.82rem;
  padding: 0.35rem 0;
  border-bottom: 1px solid transparent;
}

.nav-legal-desktop a:hover {
  border-bottom-color: var(--accent);
  color: var(--primary);
}

.menu-toggle {
  order: 999;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  padding: 0;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--primary);
  cursor: pointer;
  position: relative;
  clip-path: polygon(0 0, calc(100% - 6px) 0, 100% 6px, 100% 100%, 6px 100%, 0 calc(100% - 6px));
  box-shadow: 0 0 0 1px rgba(217, 249, 157, 0.08);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.menu-toggle:hover {
  border-color: var(--accent);
  box-shadow: 0 0 12px rgba(217, 249, 157, 0.2);
}

.menu-toggle .bar {
  display: block;
  width: 1.25rem;
  height: 2px;
  background: currentColor;
  position: relative;
  transition: transform 0.2s ease;
}

.menu-toggle .bar::before,
.menu-toggle .bar::after {
  content: "";
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  background: currentColor;
  transition: transform 0.2s ease;
}

.menu-toggle .bar::before {
  top: -6px;
}

.menu-toggle .bar::after {
  top: 6px;
}

.menu-toggle[aria-expanded="true"] .bar {
  background: transparent;
}

.menu-toggle[aria-expanded="true"] .bar::before {
  transform: translateY(6px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] .bar::after {
  transform: translateY(-6px) rotate(-45deg);
}

@media (min-width: 1024px) {
  .menu-toggle {
    display: none;
  }

  .nav-desktop {
    display: flex;
  }

  .nav-legal-desktop {
    display: flex;
  }
}

/* —— Nav panel (separate from header) —— */
.nav-panel {
  position: fixed;
  inset: 0;
  top: var(--header-h);
  z-index: 850;
  background: rgba(15, 23, 42, 0.97);
  border-top: 1px solid var(--line);
  padding: var(--space);
  transform: translateX(100%);
  visibility: hidden;
  transition: transform 0.28s ease, visibility 0.28s;
  overflow-y: auto;
}

.nav-panel.is-open {
  transform: translateX(0);
  visibility: visible;
}

.nav-panel-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.25rem;
  max-width: var(--max);
  margin-inline: auto;
}

.nav-panel-list a {
  display: block;
  padding: 0.85rem 1rem;
  color: var(--primary);
  border: 1px solid var(--line);
  clip-path: polygon(0 0, calc(100% - 8px) 0, 100% 8px, 100% 100%, 8px 100%, 0 calc(100% - 8px));
  transition: border-color 0.2s ease, background 0.2s ease;
}

.nav-panel-list a:hover {
  background: rgba(30, 41, 59, 0.8);
  border-color: var(--accent);
}

.nav-panel-legal {
  list-style: none;
  margin: 1rem 0 0;
  padding: 1rem 0 0;
  border-top: 1px solid var(--line);
  display: grid;
  gap: 0.25rem;
  max-width: var(--max);
  margin-inline: auto;
}

.nav-panel-legal a {
  display: block;
  padding: 0.65rem 1rem;
  color: var(--secondary);
  font-size: 0.88rem;
  border: 1px solid var(--line);
  clip-path: polygon(0 0, calc(100% - 8px) 0, 100% 8px, 100% 100%, 8px 100%, 0 calc(100% - 8px));
  transition: border-color 0.2s ease, background 0.2s ease, color 0.2s ease;
}

.nav-panel-legal a:hover {
  background: rgba(30, 41, 59, 0.8);
  border-color: var(--accent);
  color: var(--primary);
}

.nav-backdrop {
  position: fixed;
  inset: 0;
  top: var(--header-h);
  z-index: 840;
  background: rgba(0, 0, 0, 0.4);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s ease, visibility 0.25s;
}

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

@media (min-width: 1024px) {
  .nav-panel,
  .nav-backdrop {
    display: none;
  }
}

/* —— Main layout —— */
main {
  overflow-x: hidden;
}

.section {
  padding: clamp(2.5rem, 6vw, 4.5rem) var(--space);
}

.section-inner {
  max-width: var(--max);
  margin-inline: auto;
  width: 100%;
}

.section-kicker {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--secondary);
  margin: 0 0 0.5rem;
}

.section-title {
  font-size: clamp(1.5rem, 4vw, 2.1rem);
  font-weight: 600;
  margin: 0 0 1rem;
  color: var(--primary);
}

.section-lead {
  color: var(--secondary);
  max-width: 40rem;
  margin: 0 0 1.5rem;
}

/* —— Hero: image under text —— */
.hero {
  position: relative;
  min-height: min(85vh, 38rem);
  display: grid;
  align-items: end;
  width: 100vw;
  margin-left: calc(50% - 50vw);
  margin-right: calc(50% - 50vw);
  overflow: hidden;
}

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

.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.45;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(
    180deg,
    rgba(15, 23, 42, 0.55) 0%,
    rgba(15, 23, 42, 0.88) 70%,
    var(--bg) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 2;
  padding: var(--space);
  padding-bottom: clamp(2.5rem, 8vw, 4rem);
  max-width: var(--max);
  margin-inline: auto;
  width: 100%;
}

.hero h1 {
  font-size: clamp(1.75rem, 5vw, 2.75rem);
  font-weight: 600;
  line-height: 1.15;
  margin: 0 0 1rem;
  max-width: 22ch;
}

.hero p {
  color: var(--secondary);
  max-width: 36rem;
  margin: 0 0 1.5rem;
}

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.65rem 1.25rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--bg);
  background: var(--accent);
  border: 1px solid var(--accent);
  clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 10px 100%, 0 calc(100% - 10px));
  box-shadow: 0 0 0 1px rgba(217, 249, 157, 0.35), 0 0 18px rgba(217, 249, 157, 0.15);
  transition: box-shadow 0.2s ease, transform 0.2s ease, border-color 0.2s ease;
}

.btn:hover {
  box-shadow: 0 0 0 1px var(--accent), 0 0 24px rgba(217, 249, 157, 0.35);
  transform: translateY(-1px);
  color: red;
}

.btn-ghost {
  background: transparent;
  color: var(--primary);
  border-color: var(--line);
  box-shadow: none;
}

.btn-ghost:hover {
  border-color: var(--accent);
  box-shadow: 0 0 12px rgba(217, 249, 157, 0.12);
}

/* —— Content grids —— */
.grid-2 {
  display: grid;
  gap: clamp(1.25rem, 3vw, 2rem);
  align-items: center;
}

@media (min-width: 768px) {
  .grid-2 {
    grid-template-columns: 1fr 1fr;
  }
}

.grid-3 {
  display: grid;
  gap: clamp(1rem, 2.5vw, 1.5rem);
}

@media (min-width: 600px) {
  .grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }
}

.card-outline {
  border: 1px solid var(--line);
  padding: 1.25rem;
  background: rgba(30, 41, 59, 0.35);
  clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 12px, 100% 100%, 12px 100%, 0 calc(100% - 12px));
  box-shadow: var(--shadow);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.card-outline:hover {
  border-color: rgba(217, 249, 157, 0.45);
  box-shadow: 0 1.25rem 3rem rgba(0, 0, 0, 0.5);
}

.card-outline h3 {
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
}

.card-outline p {
  margin: 0 0 0.75rem;
  color: var(--secondary);
  font-size: 0.92rem;
}

.price {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--accent);
  margin: 0;
}

.figure-frame {
  border: 1px solid var(--line);
  overflow: hidden;
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 14px 100%, 0 calc(100% - 14px));
  box-shadow: var(--shadow);
}

.figure-frame img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
}

/* —— Banner strip (image under text) —— */
.banner-strip {
  position: relative;
  width: 100vw;
  margin-left: calc(50% - 50vw);
  margin-right: calc(50% - 50vw);
  min-height: 14rem;
  display: grid;
  align-items: center;
}

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

.banner-strip .banner-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.4;
}

.banner-strip .banner-scrim {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(90deg, rgba(15, 23, 42, 0.92) 0%, rgba(15, 23, 42, 0.78) 100%);
}

.banner-strip .banner-text {
  position: relative;
  z-index: 2;
  padding: var(--space);
  max-width: var(--max);
  margin-inline: auto;
  width: 100%;
}

/* —— Metrics —— */
.metrics-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(9rem, 1fr));
}

.metric {
  text-align: center;
  padding: 1.25rem;
  border: 1px solid var(--line);
  background: rgba(30, 41, 59, 0.25);
}

.metric strong {
  display: block;
  font-size: 1.5rem;
  color: var(--accent);
  margin-bottom: 0.25rem;
}

.metric span {
  font-size: 0.85rem;
  color: var(--secondary);
}

/* —— Library list —— */
.library-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.75rem;
}

.library-list li {
  border-left: 2px solid var(--line);
  padding-left: 1rem;
}

.library-list a {
  color: var(--primary);
  font-weight: 500;
}

/* —— Contact —— */
.contact-grid {
  display: grid;
  gap: clamp(1.5rem, 4vw, 2.5rem);
}

@media (min-width: 768px) {
  .contact-grid {
    grid-template-columns: 1fr 1.1fr;
  }
}

.contact-block {
  border: 1px solid var(--line);
  padding: 1.25rem;
  background: rgba(30, 41, 59, 0.3);
}

.contact-block dl {
  margin: 0;
  display: grid;
  gap: 0.75rem;
}

.contact-block dt {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--secondary);
}

.contact-block dd {
  margin: 0;
  color: var(--primary);
}

.map-link {
  display: inline-block;
  margin-top: 0.5rem;
  font-size: 0.9rem;
}

.form-group {
  margin-bottom: 1rem;
}

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

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.65rem 0.75rem;
  border: 1px solid var(--line);
  background: rgba(15, 23, 42, 0.6);
  color: var(--primary);
  font: inherit;
}

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

.checkbox-row {
  gap: 0.5rem;
  align-items: flex-start;
  font-size: 0.88rem;
  color: var(--secondary);
}

.checkbox-row input {
  margin-top: 0.25rem;
  flex-shrink: 0;
}

/* —— Footer —— */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 2rem var(--space);
  background: rgba(15, 23, 42, 0.98);
}

.footer-inner {
  max-width: var(--max);
  margin-inline: auto;
  display: grid;
  gap: 1.5rem;
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer-nav a {
  color: var(--secondary);
  font-size: 0.88rem;
}

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer-legal a {
  color: var(--secondary);
  font-size: 0.85rem;
}

.footer-meta {
  font-size: 0.82rem;
  color: var(--secondary);
}

.footer-meta p {
  margin: 0.35rem 0;
}

/* —— Legal / thank-you prose —— */
.page-main {
  padding: clamp(2rem, 5vw, 3.5rem) var(--space);
}

.prose {
  max-width: 48rem;
  margin-inline: auto;
}

.prose h1 {
  font-size: clamp(1.5rem, 4vw, 2rem);
  margin-top: 0;
}

.prose h2 {
  font-size: 1.15rem;
  margin-top: 2rem;
}

.prose p,
.prose li {
  color: var(--secondary);
}

.prose .date {
  font-size: 0.9rem;
  color: var(--accent);
  margin-bottom: 1.5rem;
}

.thank-panel {
  max-width: 36rem;
  margin-inline: auto;
  text-align: center;
  padding: clamp(2rem, 5vw, 3rem);
  border: 1px solid var(--line);
  background: rgba(30, 41, 59, 0.35);
  clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 16px 100%, 0 calc(100% - 16px));
}

.thank-panel h1 {
  margin-top: 0;
}

.thank-panel p {
  color: var(--secondary);
}

/* —— Cookie banner —— */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 9500;
  padding: var(--space);
  background: rgba(30, 41, 59, 0.98);
  border-top: 1px solid var(--line);
  box-shadow: 0 -0.5rem 2rem rgba(0, 0, 0, 0.35);
  transform: translateY(110%);
  transition: transform 0.3s ease;
}

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

.cookie-inner {
  max-width: var(--max);
  margin-inline: auto;
  display: grid;
  gap: 1rem;
}

@media (min-width: 640px) {
  .cookie-inner {
    grid-template-columns: 1fr auto;
    align-items: center;
  }
}

.cookie-banner p {
  margin: 0;
  font-size: 0.88rem;
  color: var(--secondary);
}

.cookie-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.btn-small {
  padding: 0.5rem 1rem;
  font-size: 0.85rem;
}

.section-tight-title {
  margin-bottom: 0;
}

.section-tight-lead {
  margin-bottom: 0;
}

.modules-body {
  padding-top: clamp(2rem, 5vw, 3rem);
}

.mechanics-cards {
  margin-top: clamp(1.5rem, 4vw, 2.5rem);
}

.form-heading {
  font-size: 1.1rem;
  margin-top: 0;
}

.primary-nav {
  display: contents;
}

.thank-follow {
  padding-top: 0;
}

.prose-subtitle {
  font-size: 1.15rem;
}