/* =========================================================================
   Ringleader theme — grayscale, dark/light. All colors come from variables.
   ========================================================================= */

:root {
  --color-bg: #ffffff;
  --color-bg-alt: #f4f4f5;
  --color-bg-elev: #ffffff;
  --color-text: #18181b;
  --color-text-light: #52525b;
  --color-border: #e4e4e7;
  --color-accent: #18181b;        /* grayscale by default */
  --color-accent-contrast: #ffffff;
  --color-shadow: rgba(0, 0, 0, 0.08);
  --color-shadow-strong: rgba(0, 0, 0, 0.16);
  --color-overlay: rgba(0, 0, 0, 0.5);
  --color-code-bg: #18181b;
  --color-code-text: #f4f4f5;

  --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;

  --container: 1120px;
  --header-h: 68px;
  --radius: 12px;
  --radius-sm: 8px;

  /* isometric hero block faces — layered grays for iso depth (light) */
  --iso-top: #ffffff;   --iso-top-line: #d4d4d8;
  --iso-left: #e7e7ea;  --iso-left-line: #cfcfd4;
  --iso-right: #d2d2d8; --iso-right-line: #b9b9c1;
  --iso-glow: rgba(24, 24, 27, 0.16);
}

:root[data-theme="dark"] {
  --iso-top: #28282c;   --iso-top-line: #3c3c42;
  --iso-left: #1b1b1e;  --iso-left-line: #303036;
  --iso-right: #131316; --iso-right-line: #27272c;
  --iso-glow: rgba(244, 244, 245, 0.18);

  --color-bg: #0a0a0a;
  --color-bg-alt: #161616;
  --color-bg-elev: #161616;
  --color-text: #f4f4f5;
  --color-text-light: #a1a1aa;
  --color-border: #27272a;
  --color-accent: #f4f4f5;
  --color-accent-contrast: #0a0a0a;
  --color-shadow: rgba(0, 0, 0, 0.5);
  --color-shadow-strong: rgba(0, 0, 0, 0.7);
  --color-overlay: rgba(0, 0, 0, 0.7);
  --color-code-bg: #161616;
  --color-code-text: #f4f4f5;
}

/* --------------------------------------------------------------- Reset */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
html.consent-lock { overflow: hidden; }
body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  transition: background var(--transition-base), color var(--transition-base);
}
img, svg { max-width: 100%; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4 { line-height: 1.18; font-weight: 700; letter-spacing: -0.02em; }
:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 2px; border-radius: 4px; }

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

/* ============================================================== Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  font: inherit;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  text-align: center;
  transition: all var(--transition-base);
  will-change: transform;
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 8px 20px var(--color-shadow); }
.btn:active { transform: translateY(0); }

.btn-feature {
  background: var(--color-accent);
  color: var(--color-accent-contrast);
  position: relative;
  overflow: hidden;
  animation: ctaGlow 3.2s ease-in-out infinite;
}
.btn-feature:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 30px var(--color-shadow-strong);
  animation-play-state: paused;          /* pause idle glow on hover */
}
/* shine sweep */
.btn-feature::after {
  content: "";
  position: absolute;
  top: 0; left: -120%;
  width: 60%; height: 100%;
  background: linear-gradient(115deg, transparent, rgba(255, 255, 255, 0.45), transparent);
  transform: skewX(-20deg);
  animation: ctaShine 3.6s ease-in-out infinite;
}

.btn-outline {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-border);
}
.btn-outline:hover { border-color: var(--color-accent); }

@keyframes ctaGlow {
  0%, 100% { box-shadow: 0 0 0 0 var(--color-shadow); }
  50% { box-shadow: 0 0 22px 2px var(--color-shadow-strong); }
}
@keyframes ctaShine {
  0%, 60% { left: -120%; }
  100% { left: 140%; }
}

/* =============================================================== Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in srgb, var(--color-bg) 86%, transparent);
  border-bottom: 1px solid transparent;
  transition: background var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}
.site-header.scrolled {
  background: color-mix(in srgb, var(--color-bg) 80%, transparent);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  box-shadow: 0 1px 14px var(--color-shadow);
  border-bottom-color: var(--color-border);
}
.header-inner {
  display: flex;
  align-items: center;
  gap: 20px;
  height: var(--header-h);
}

.brand { display: inline-flex; align-items: center; }
.logo { display: inline-flex; align-items: center; gap: 9px; color: var(--color-text); }
.logo-mark { color: var(--color-accent); flex: none; }
.logo-text { font-weight: 800; font-size: 1.15rem; letter-spacing: -0.03em; }
.logo-badge {
  font-size: 0.62rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 2px 6px;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  color: var(--color-text-light);
}

.primary-nav {
  display: flex;
  align-items: center;
  gap: 24px;
  margin-left: auto;
}
.nav-list { display: flex; align-items: center; gap: 4px; list-style: none; margin: 0; padding: 0; }
.nav-item { position: relative; }
.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  color: var(--color-text-light);
  font-size: 0.93rem;
  font-weight: 500;
  background: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
  transition: color var(--transition-base), background var(--transition-base);
}
.nav-link:hover { color: var(--color-text); background: var(--color-bg-alt); }
.nav-link.active { color: var(--color-text); font-weight: 600; }

.nav-actions { display: flex; align-items: center; gap: 12px; }
.header-cta { padding: 9px 18px; font-size: 0.9rem; }

.header-controls { display: flex; align-items: center; gap: 8px; }

/* theme toggle */
.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px; height: 40px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  background: var(--color-bg-elev);
  color: var(--color-text);
  cursor: pointer;
  transition: all var(--transition-base);
}
.theme-toggle:hover { border-color: var(--color-accent); transform: translateY(-1px); }
.theme-toggle .icon-moon { display: none; }
:root[data-theme="dark"] .theme-toggle .icon-sun { display: none; }
:root[data-theme="dark"] .theme-toggle .icon-moon { display: inline; }

/* hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px; height: 40px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  background: var(--color-bg-elev);
  cursor: pointer;
}
.nav-toggle-bar {
  display: block;
  width: 18px; height: 2px;
  margin: 0 auto;
  background: var(--color-text);
  transition: transform var(--transition-base), opacity var(--transition-base);
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ----------------------------------------------------- Documents dropdown */
.dropdown-menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 230px;
  list-style: none;
  margin: 0;
  padding: 8px;
  background: var(--color-bg-elev);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: 0 12px 30px var(--color-shadow-strong);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
  transition: opacity var(--transition-base), transform var(--transition-base), visibility var(--transition-base);
  z-index: 50;
}
.has-dropdown:hover .dropdown-menu,
.has-dropdown.open .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.caret { transition: transform var(--transition-base); }
.has-dropdown:hover .caret,
.has-dropdown.open .caret { transform: rotate(180deg); }
.dropdown-group {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 9px 10px;
  border-radius: var(--radius-sm);
}
.dropdown-group:hover { background: var(--color-bg-alt); }
.dropdown-group-name { font-size: 0.9rem; font-weight: 600; }
.dropdown-links { display: inline-flex; gap: 6px; }
.dropdown-links a {
  font-size: 0.78rem;
  font-weight: 600;
  padding: 3px 9px;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  color: var(--color-text-light);
  transition: all var(--transition-base);
}
.dropdown-links a:hover { color: var(--color-text); border-color: var(--color-accent); }

/* ================================================================= Hero */
.hero { padding: clamp(48px, 9vw, 104px) 0 clamp(40px, 7vw, 84px); overflow: hidden; }
.hero-inner {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 48px;
  align-items: center;
}
.hero-eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-text-light);
  padding: 5px 12px;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  margin: 0 0 20px;
}
.hero-title { font-size: clamp(2.1rem, 5vw, 3.5rem); margin: 0 0 18px; }
.hero-subtitle {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  color: var(--color-text-light);
  max-width: 36ch;
  margin: 0 0 30px;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }
.hero-visual { display: flex; justify-content: center; }
/* ---- hero isometric stack ---- */
.iso-panel {
  --iso-T: 7.2s;
  position: relative;
  width: 100%;
  max-width: 440px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: radial-gradient(120% 90% at 50% 18%, var(--color-bg-alt), var(--color-bg) 72%);
  overflow: hidden;
  aspect-ratio: 1 / 1;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 22px 60px -28px var(--iso-glow);
}
/* faint iso floor grid */
.iso-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--color-border) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-border) 1px, transparent 1px);
  background-size: 34px 34px;
  opacity: 0.28;
  transform: perspective(700px) rotateX(60deg) scale(1.5);
  transform-origin: center 78%;
  -webkit-mask-image: radial-gradient(circle at 50% 70%, #000, transparent 68%);
  mask-image: radial-gradient(circle at 50% 70%, #000, transparent 68%);
  pointer-events: none;
}

.iso-stage {
  position: relative;
  width: 260px;
  height: 300px;
  transform-style: preserve-3d;
  perspective: 1100px;
}
.iso-scene {
  position: absolute;
  inset: 0;
  transform-style: preserve-3d;
  transform: rotateX(56deg) rotateZ(45deg);
  animation: isoSpin 26s linear infinite;
}
@keyframes isoSpin {
  from { transform: rotateX(56deg) rotateZ(45deg); }
  to   { transform: rotateX(56deg) rotateZ(405deg); }
}

/* a "block" = cube built from 3 faces (top/left/right), stacked along Z */
.iso-block {
  position: absolute;
  left: 50%; top: 50%;
  width: 140px; height: 140px;
  margin-left: -70px; margin-top: -70px;
  transform-style: preserve-3d;
}
.iso-face { position: absolute; left: 0; top: 0; width: 140px; height: 140px; }
.iso-face.top {
  background: var(--iso-top);
  border: 1px solid var(--iso-top-line);
  transform: translateZ(var(--h));
}
.iso-face.left {
  width: 140px; height: var(--hpx);
  background: var(--iso-left);
  border: 1px solid var(--iso-left-line);
  transform-origin: top;
  transform: rotateX(-90deg) translateZ(var(--negh, 0));
  top: 140px;
}
.iso-face.right {
  width: var(--hpx); height: 140px;
  background: var(--iso-right);
  border: 1px solid var(--iso-right-line);
  transform-origin: left;
  transform: rotateY(90deg);
  left: 140px;
}
/* glyph etched on each block top */
.iso-glyph {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  color: var(--color-text-light);
  transform: translateZ(calc(var(--h) + 0.4px));
  opacity: 0.9;
}
.iso-glyph svg { display: block; }

/* the assembly: 3 blocks stack up, driven by one shared timeline */
.iso-b1 { --h: 30px; --hpx: 30px; --negh: -30px; animation: isoFly1 var(--iso-T) cubic-bezier(.22, 1, .36, 1) infinite; }
.iso-b2 { --h: 30px; --hpx: 30px; --negh: -30px; animation: isoFly2 var(--iso-T) cubic-bezier(.22, 1, .36, 1) infinite; }
.iso-b3 { --h: 24px; --hpx: 24px; --negh: -24px; animation: isoFly3 var(--iso-T) cubic-bezier(.22, 1, .36, 1) infinite; }

/* resting Z positions add up: b1 base (0), b2 above (32), b3 top (64) */
@keyframes isoFly1 {
  0%   { transform: translateZ(360px); opacity: 0; }
  8%   { opacity: 1; }
  26%  { transform: translateZ(0px); }
  92%  { transform: translateZ(0px); opacity: 1; }
  100% { transform: translateZ(360px); opacity: 0; }
}
@keyframes isoFly2 {
  0%, 10% { transform: translateZ(360px); opacity: 0; }
  18%  { opacity: 1; }
  40%  { transform: translateZ(32px); }
  90%  { transform: translateZ(32px); opacity: 1; }
  100% { transform: translateZ(360px); opacity: 0; }
}
@keyframes isoFly3 {
  0%, 22% { transform: translateZ(360px); opacity: 0; }
  30%  { opacity: 1; }
  54%  { transform: translateZ(64px); }
  88%  { transform: translateZ(64px); opacity: 1; }
  100% { transform: translateZ(360px); opacity: 0; }
}

/* "power on" — glow pulse once the tower is assembled, fades for loop */
.iso-power {
  position: absolute;
  left: 50%; top: 50%;
  width: 150px; height: 150px; margin: -75px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--iso-glow), transparent 65%);
  opacity: 0;
  animation: isoPowerOn var(--iso-T) ease-in-out infinite;
  pointer-events: none;
}
@keyframes isoPowerOn {
  0%, 52% { opacity: 0; transform: translateZ(64px) scale(.6); }
  62%     { opacity: 1; transform: translateZ(64px) scale(1); }
  84%     { opacity: .55; transform: translateZ(64px) scale(1.06); }
  100%    { opacity: 0; transform: translateZ(64px) scale(.6); }
}

/* mono status line cycling in sync with the assembly */
.iso-status {
  position: absolute;
  left: 0; right: 0; bottom: 16px;
  display: flex; align-items: center; justify-content: center; gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.02em;
  color: var(--color-text-light);
}
.iso-ok {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--color-text);
  animation: isoBeat var(--iso-T) ease-in-out infinite;
}
@keyframes isoBeat { 0%, 100% { opacity: .35; transform: scale(.85); } 50% { opacity: 1; transform: scale(1); } }
.iso-steps { display: grid; }
.iso-st { grid-area: 1 / 1; white-space: nowrap; opacity: 0; }
.iso-st.s0 { animation: isoStep0 var(--iso-T) linear infinite; }
.iso-st.s1 { animation: isoStep1 var(--iso-T) linear infinite; }
.iso-st.s2 { animation: isoStep2 var(--iso-T) linear infinite; }
.iso-st.s3 { animation: isoStep3 var(--iso-T) linear infinite; }
.iso-st.s4 { animation: isoStep4 var(--iso-T) linear infinite; }
@keyframes isoStep0 { 0%, 26% { opacity: 1; } 30%, 100% { opacity: 0; } }
@keyframes isoStep1 { 0%, 26% { opacity: 0; } 30%, 42% { opacity: 1; } 46%, 100% { opacity: 0; } }
@keyframes isoStep2 { 0%, 42% { opacity: 0; } 46%, 56% { opacity: 1; } 60%, 100% { opacity: 0; } }
@keyframes isoStep3 { 0%, 56% { opacity: 0; } 60%, 76% { opacity: 1; } 80%, 100% { opacity: 0; } }
@keyframes isoStep4 { 0%, 76% { opacity: 0; } 80%, 98% { opacity: 1; } 100% { opacity: 0; } }

/* ============================================================== Sections */
.section { padding: clamp(56px, 9vw, 104px) 0; }
.section-alt { background: var(--color-bg-alt); }
.section-head { max-width: 640px; margin: 0 auto clamp(36px, 5vw, 56px); text-align: center; }
.section-title { font-size: clamp(1.7rem, 3.5vw, 2.4rem); margin: 0 0 14px; }
.section-lead { font-size: 1.08rem; color: var(--color-text-light); margin: 0; }
.section-cta { text-align: center; margin-top: 44px; }

/* feature grid */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}
.feature-card {
  background: var(--color-bg-elev);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 26px;
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}
.feature-card:hover { transform: translateY(-4px); box-shadow: 0 14px 32px var(--color-shadow); border-color: var(--color-accent); }
.feature-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px; height: 46px;
  border-radius: var(--radius-sm);
  background: var(--color-bg-alt);
  color: var(--color-accent);
  margin-bottom: 16px;
}
.section-alt .feature-icon { background: var(--color-bg); }
.feature-title { font-size: 1.18rem; margin: 0 0 8px; }
.feature-body { color: var(--color-text-light); margin: 0; font-size: 0.97rem; }

/* split */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.split-copy .section-title { text-align: left; }
.split-copy .btn { margin-top: 22px; }
.code-block {
  background: var(--color-code-bg);
  color: var(--color-code-text);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 22px 24px;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  line-height: 1.7;
  overflow-x: auto;
  box-shadow: 0 14px 34px var(--color-shadow);
}
.code-block .c-prompt { color: #a1a1aa; }
.code-block .c-dim { color: #71717a; }
.code-block .c-ok { color: #d4d4d8; font-weight: 600; }

/* ====================================================== Inner page layout */
.main-page { min-height: 60vh; }
.page-header { padding: clamp(48px, 8vw, 84px) 0 clamp(20px, 4vw, 36px); }
.page-title { font-size: clamp(2rem, 4.5vw, 3rem); margin: 0; }
.page-lead { font-size: 1.15rem; color: var(--color-text-light); margin: 14px 0 0; max-width: 60ch; }
.page-body { padding-bottom: clamp(56px, 9vw, 96px); }

/* prose */
.prose { max-width: 760px; }
.prose h2 { font-size: 1.6rem; margin: 2.2em 0 0.6em; }
.prose h3 { font-size: 1.22rem; margin: 1.8em 0 0.5em; }
.prose p { margin: 0 0 1.1em; color: var(--color-text); }
.prose a { color: var(--color-text); text-decoration: underline; text-underline-offset: 3px; text-decoration-color: var(--color-border); }
.prose a:hover { text-decoration-color: var(--color-accent); }
.prose ul, .prose ol { padding-left: 1.3em; margin: 0 0 1.2em; }
.prose li { margin: 0.3em 0; }
.prose code {
  font-family: var(--font-mono);
  font-size: 0.88em;
  background: var(--color-bg-alt);
  padding: 2px 6px;
  border-radius: 5px;
}
.prose pre {
  background: var(--color-code-bg);
  color: var(--color-code-text);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 18px 20px;
  overflow-x: auto;
}
.prose pre code { background: none; padding: 0; color: inherit; }
.prose blockquote {
  border-left: 3px solid var(--color-border);
  margin: 1.4em 0;
  padding: 0.2em 0 0.2em 1.1em;
  color: var(--color-text-light);
}
.prose hr { border: none; border-top: 1px solid var(--color-border); margin: 2.4em 0; }

/* the shortcode components are also used inside .prose */
.prose .feature-grid,
.prose .founder-grid,
.prose .openings-list,
.prose .beta-form { margin: 1.8em 0; max-width: none; }

/* founders */
.founder-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 22px; }
.founder-card {
  background: var(--color-bg-elev);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 26px;
  text-align: center;
}
.founder-photo {
  width: 84px; height: 84px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto 16px;
}
.founder-monogram {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  font-weight: 800;
  background: var(--color-bg-alt);
  color: var(--color-accent);
  border: 1px solid var(--color-border);
}
.founder-name { font-size: 1.2rem; margin: 0 0 4px; }
.founder-role { color: var(--color-text-light); font-weight: 600; font-size: 0.9rem; margin: 0 0 12px; }
.founder-bio { color: var(--color-text-light); font-size: 0.95rem; margin: 0; }

/* openings */
.openings-list { display: grid; gap: 16px; }
.opening-card {
  background: var(--color-bg-elev);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}
.opening-card:hover { border-color: var(--color-accent); box-shadow: 0 10px 26px var(--color-shadow); }
.opening-head { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 10px; }
.opening-title { font-size: 1.2rem; margin: 0; }
.opening-meta { display: flex; gap: 8px; }
.tag {
  font-size: 0.74rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--color-bg-alt);
  color: var(--color-text-light);
}
.opening-body { color: var(--color-text-light); margin: 12px 0 18px; }

/* beta form */
.beta-form {
  max-width: 540px;
  background: var(--color-bg-elev);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px;
}
.form-row { display: flex; flex-direction: column; gap: 6px; margin-bottom: 16px; }
.form-row label { font-size: 0.86rem; font-weight: 600; color: var(--color-text); }
.form-row input,
.form-row textarea {
  font: inherit;
  padding: 11px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg);
  color: var(--color-text);
  transition: border-color var(--transition-base);
}
.form-row input:focus,
.form-row textarea:focus { outline: none; border-color: var(--color-accent); }
.beta-form .btn { width: 100%; margin-top: 4px; }
.form-note { font-size: 0.82rem; color: var(--color-text-light); margin: 14px 0 0; text-align: center; }

/* page list (section children) */
.page-list { list-style: none; padding: 0; margin: 8px 0 0; display: grid; gap: 12px; }
.page-list-item a {
  display: block;
  padding: 18px 20px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  transition: border-color var(--transition-base), transform var(--transition-base);
}
.page-list-item a:hover { border-color: var(--color-accent); transform: translateX(3px); }
.page-list-title { display: block; font-weight: 600; font-size: 1.05rem; }
.page-list-desc { display: block; color: var(--color-text-light); font-size: 0.92rem; margin-top: 4px; }

/* ----------------------------------------------------- Legal document list */
.doc-list { list-style: none; padding: 0; margin: 8px 0 0; display: grid; gap: 12px; }
.doc-list-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 20px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  transition: border-color var(--transition-base);
}
.doc-list-item:hover { border-color: var(--color-accent); }
.doc-list-name { font-weight: 600; font-size: 1.05rem; }

/* =============================================================== Footer */
.site-footer { border-top: 1px solid var(--color-border); background: var(--color-bg-alt); margin-top: 40px; }
.footer-inner {
  display: grid;
  grid-template-columns: 1.4fr 2fr;
  gap: 40px;
  padding: clamp(40px, 6vw, 64px) 24px clamp(28px, 4vw, 40px);
}
.footer-tagline { color: var(--color-text-light); margin: 14px 0 0; max-width: 32ch; font-size: 0.95rem; }
.footer-nav { display: grid; grid-template-columns: 1fr 1fr 1.6fr; gap: 28px; }
.footer-heading { font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--color-text-light); margin: 0 0 14px; }
.footer-col ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 9px; }
.footer-col a { color: var(--color-text-light); font-size: 0.92rem; transition: color var(--transition-base); }
.footer-col a:hover { color: var(--color-text); }
.footer-form .form-row { margin-bottom: 12px; }
.footer-form .form-row label { font-size: 0.82rem; }
.footer-form .btn { width: 100%; margin-top: 2px; }
.footer-contact-alt { margin: 12px 0 0; font-size: 0.85rem; color: var(--color-text-light); }
.footer-contact-alt a { color: var(--color-text-light); border-bottom: 1px solid var(--color-border); }
.footer-contact-alt a:hover { color: var(--color-text); border-color: var(--color-accent); }
.footer-bottom { padding: 18px 24px 28px; border-top: 1px solid var(--color-border); }
.footer-bottom p { margin: 0; font-size: 0.85rem; color: var(--color-text-light); }

/* ======================================================= Cookie consent */
.cookie-backdrop {
  position: fixed; inset: 0;
  background: var(--color-overlay);
  opacity: 0;
  transition: opacity var(--transition-base);
  z-index: 998;
}
.cookie-backdrop.visible { opacity: 1; }
.cookie-consent {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  z-index: 999;
  background: var(--color-bg-elev);
  border-top: 1px solid var(--color-border);
  box-shadow: 0 -8px 30px var(--color-shadow-strong);
  transform: translateY(110%);
  transition: transform var(--transition-slow);
}
.cookie-consent.visible { transform: translateY(0); }
.cookie-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 22px 24px;
}
.cookie-title { font-size: 1.05rem; margin: 0 0 4px; }
.cookie-desc { margin: 0; color: var(--color-text-light); font-size: 0.92rem; max-width: 60ch; }
.cookie-desc a { text-decoration: underline; text-underline-offset: 2px; }
.cookie-actions { display: flex; gap: 12px; flex: none; }

/* ============================================ Reveal / fade-in animations */
.reveal {
  opacity: 0.5;
  transform: translateY(22px);
  transition: opacity 0.3s ease, transform 0.45s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.reveal.visible { opacity: 1; transform: translateY(0); }

.fade-in { opacity: 0; animation: fadeInUp 0.7s cubic-bezier(0.34, 1.56, 0.64, 1) forwards; }
.delay-1 { animation-delay: 0.12s; }
.delay-2 { animation-delay: 0.24s; }
.delay-3 { animation-delay: 0.36s; }
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ============================================================== Responsive */
@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; text-align: center; }
  .hero-subtitle { margin-left: auto; margin-right: auto; }
  .hero-actions { justify-content: center; }
  .hero-visual { order: -1; }
  .split { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; }
}

/* phone / narrow: the isometric scene becomes a full-bleed hero background
   with the copy overlaid, instead of a contained side panel. */
@media (max-width: 720px) {
  .hero {
    position: relative;
    min-height: calc(100svh - var(--header-h));
    display: flex;
    align-items: flex-end;
  }
  .hero-visual {
    position: absolute;
    inset: 0;
    z-index: 0;
    align-items: center;
  }
  .iso-panel {
    position: absolute;
    inset: 0;
    max-width: none;
    border: none;
    border-radius: 0;
    aspect-ratio: auto;
    box-shadow: none;
    background: radial-gradient(120% 70% at 50% 30%, var(--color-bg-alt), var(--color-bg) 70%);
  }
  /* scrim fades the scene into the page so the copy stays legible */
  .iso-panel::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 30%, color-mix(in srgb, var(--color-bg) 78%, transparent) 68%, var(--color-bg));
    pointer-events: none;
  }
  .iso-status { display: none; }
  .hero-copy {
    position: relative;
    z-index: 2;
    padding-bottom: calc(8px + env(safe-area-inset-bottom));
  }
}

@media (max-width: 760px) {
  .nav-toggle { display: flex; }
  .primary-nav {
    position: fixed;
    top: var(--header-h);
    left: 0; right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
    margin: 0;
    padding: 16px 24px 28px;
    background: var(--color-bg-elev);
    border-bottom: 1px solid var(--color-border);
    box-shadow: 0 14px 30px var(--color-shadow-strong);
    transform: translateY(-12px);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-base), transform var(--transition-base), visibility var(--transition-base);
    max-height: calc(100vh - var(--header-h));
    overflow-y: auto;
  }
  .primary-nav.open { transform: translateY(0); opacity: 1; visibility: visible; }
  .nav-list { flex-direction: column; align-items: stretch; gap: 2px; }
  .nav-link { padding: 12px; font-size: 1rem; }
  .nav-actions { margin-top: 8px; }
  .header-cta { width: 100%; }
  /* dropdown becomes inline on mobile */
  .dropdown-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    min-width: 0;
    margin-top: 4px;
    display: none;
  }
  .has-dropdown.open .dropdown-menu { display: block; }
  .has-dropdown:hover .dropdown-menu { opacity: 1; visibility: visible; } /* no hover-open on touch */
  .cookie-inner { flex-direction: column; align-items: stretch; text-align: left; }
  .cookie-actions { flex-direction: column; }
  .footer-nav { grid-template-columns: 1fr 1fr; }
  .footer-col-contact { grid-column: 1 / -1; }
}

/* ============================================ Reduced motion */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  .fade-in { opacity: 1; }
  .reveal { opacity: 1; transform: none; }
  .btn-feature::after { display: none; }
  /* freeze the isometric stack to its assembled, powered-on state
     (the global rule above would otherwise jump it to the flown-away frame) */
  .iso-scene { transform: rotateX(56deg) rotateZ(38deg); }
  .iso-b1, .iso-b2, .iso-b3, .iso-power, .iso-ok, .iso-st { animation: none !important; }
  .iso-b1 { transform: translateZ(0); opacity: 1; }
  .iso-b2 { transform: translateZ(32px); opacity: 1; }
  .iso-b3 { transform: translateZ(64px); opacity: 1; }
  .iso-power { opacity: .7; transform: translateZ(64px) scale(1); }
  .iso-ok { opacity: 1; }
  .iso-st { opacity: 0; }
  .iso-st.s4 { opacity: 1; }
}