/* ================================================================
   Zero-Natural AI — zero-natural.com
   Enterprise inquiry site. Dark theme only, no build step.
   Design tokens inherited from the Zero-Natural AI system.
   ================================================================ */

/* ===== Reset & Base ===== */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* ===== Self-hosted font (Inter, variable — SIL Open Font License) ===== */
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 300 700;
  font-display: swap;
  src: url('/assets/fonts/inter-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 300 700;
  font-display: swap;
  src: url('/assets/fonts/inter-latin-ext.woff2') format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

/* ===== Design Tokens ===== */
:root {
  --c-bg: #080810;
  --c-surface: rgba(16, 16, 28, 0.8);
  --c-surface-solid: #10101c;
  --c-surface-elevated: rgba(22, 22, 38, 0.9);
  --c-surface-hover: rgba(255, 255, 255, 0.045);
  --c-border: rgba(124, 106, 239, 0.1);
  --c-border-hover: rgba(124, 106, 239, 0.25);
  --c-border-active: rgba(124, 106, 239, 0.45);
  --c-hairline: rgba(255, 255, 255, 0.07);
  --c-text: #e2e2ec;
  --c-text-secondary: #8a8aa4;
  /* Cleared against --c-bg for WCAG AA (4.79:1). Used for hints and meta text. */
  --c-text-muted: #7a7a95;
  --c-accent: #7c6aef;
  --c-accent-hover: #9580ff;
  --c-accent-glow: rgba(124, 106, 239, 0.12);
  --c-accent-glow-strong: rgba(124, 106, 239, 0.25);
  --c-input-bg: rgba(255, 255, 255, 0.025);
  --c-input-border: rgba(255, 255, 255, 0.08);
  --c-input-focus: rgba(124, 106, 239, 0.45);
  --c-error: #f87171;
  --c-error-bg: rgba(248, 113, 113, 0.06);
  --c-error-border: rgba(248, 113, 113, 0.2);
  --c-success: #4ade80;
  --c-success-bg: rgba(74, 222, 128, 0.06);
  --c-success-border: rgba(74, 222, 128, 0.2);
  --c-warning: #fbbf24;
  --c-warning-bg: rgba(251, 191, 36, 0.06);
  --c-warning-border: rgba(251, 191, 36, 0.22);
  /* Restricted tier — deliberately set apart from the standard accent. */
  --c-restricted: #d4af5a;
  --c-restricted-glow: rgba(212, 175, 90, 0.1);
  --c-restricted-border: rgba(212, 175, 90, 0.28);

  --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'SF Mono', 'Fira Code', 'Consolas', monospace;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: 150ms var(--ease-in-out);
  --transition-normal: 300ms var(--ease-out);

  --container: 1120px;
  --container-narrow: 780px;
  --header-h: 68px;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 1rem);
  color-scheme: dark;
}

body {
  font-family: var(--font-main);
  background: var(--c-bg);
  color: var(--c-text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  line-height: 1.6;
  font-weight: 400;
}

img, svg { max-width: 100%; }

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

::selection {
  background: var(--c-accent-glow-strong);
  color: #fff;
}

/* ===== Background Effects ===== */
.bg-effects {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}

.bg-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.3;
  animation: orbDrift 25s ease-in-out infinite;
}

.bg-orb--1 {
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(124, 106, 239, 0.3), transparent 70%);
  top: -15%;
  left: -10%;
  animation-duration: 28s;
}

.bg-orb--2 {
  width: 450px;
  height: 450px;
  background: radial-gradient(circle, rgba(79, 140, 255, 0.2), transparent 70%);
  bottom: -20%;
  right: -8%;
  animation-duration: 22s;
  animation-delay: -8s;
}

.bg-orb--3 {
  width: 350px;
  height: 350px;
  background: radial-gradient(circle, rgba(168, 120, 255, 0.15), transparent 70%);
  top: 35%;
  right: 15%;
  animation-duration: 30s;
  animation-delay: -15s;
}

@keyframes orbDrift {
  0%, 100% { transform: translate(0, 0) scale(1); }
  25% { transform: translate(50px, -30px) scale(1.08); }
  50% { transform: translate(-20px, 40px) scale(0.95); }
  75% { transform: translate(30px, 15px) scale(1.04); }
}

.bg-grid {
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(124, 106, 239, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(124, 106, 239, 0.025) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 60% 50% at 50% 20%, black 10%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse 60% 50% at 50% 20%, black 10%, transparent 70%);
  animation: gridDrift 90s linear infinite;
}

@keyframes gridDrift {
  from { background-position: 0 0, 0 0; }
  to   { background-position: 64px 64px, 64px 64px; }
}

.bg-noise {
  position: fixed;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  opacity: 0.05;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 120px 120px;
  animation: noiseShift 6s steps(5) infinite;
}

@keyframes noiseShift {
  0%   { transform: translate(0, 0); }
  20%  { transform: translate(-4%, 3%); }
  40%  { transform: translate(3%, -2%); }
  60%  { transform: translate(-2%, -4%); }
  80%  { transform: translate(4%, 2%); }
  100% { transform: translate(0, 0); }
}

.bg-vignette {
  position: fixed;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  background: radial-gradient(ellipse 80% 80% at 50% 35%, transparent 55%, rgba(0, 0, 0, 0.4) 100%);
}

/* ===== Layout Primitives ===== */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: 1.5rem;
}

.container--narrow { max-width: var(--container-narrow); }

.page {
  flex: 1;
  position: relative;
  z-index: 10;
  padding-top: var(--header-h);
}

.section {
  padding-block: clamp(3.5rem, 8vw, 6rem);
  position: relative;
}

/* Consecutive sections collapse the gap between them — but a divided section
   keeps its own padding, otherwise its eyebrow sits flush against the rule.
   The :not() is load-bearing: without it this rule outranks .section--divided. */
.section + .section:not(.section--divided) { padding-top: 0; }

.section--divided { border-top: 1px solid var(--c-hairline); padding-top: clamp(3.5rem, 8vw, 6rem); }

.section-head {
  max-width: 44rem;
  margin-bottom: clamp(2rem, 4vw, 3rem);
}

.section-head--center {
  margin-inline: auto;
  text-align: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-accent);
  margin-bottom: 0.9rem;
}

.eyebrow::before {
  content: '';
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--c-accent);
  opacity: 0.8;
}

.section-head--center .eyebrow::before { display: none; }

.section-title {
  font-size: clamp(1.6rem, 3.4vw, 2.35rem);
  font-weight: 300;
  letter-spacing: -0.02em;
  line-height: 1.25;
  color: var(--c-text);
}

.section-lead {
  margin-top: 1rem;
  font-size: 1rem;
  font-weight: 300;
  color: var(--c-text-secondary);
  line-height: 1.75;
}

/* ===== Skip Link ===== */
.skip-link {
  position: absolute;
  left: 1rem;
  top: -3rem;
  z-index: 300;
  padding: 0.6rem 1rem;
  background: var(--c-surface-solid);
  border: 1px solid var(--c-accent);
  border-radius: var(--radius-sm);
  color: var(--c-text);
  font-size: 0.85rem;
  text-decoration: none;
  transition: top var(--transition-fast);
}

.skip-link:focus { top: 1rem; }

/* ===== Site Header ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(8, 8, 16, 0.72);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--c-hairline);
}

.site-header__inner {
  height: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: 1.5rem;
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  color: var(--c-text);
  flex-shrink: 0;
}

.brand__mark {
  width: 30px;
  height: 30px;
  color: var(--c-accent);
  flex-shrink: 0;
}

.brand__text {
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  white-space: nowrap;
}

.site-nav { margin-left: auto; }

.site-nav__list {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  list-style: none;
}

.site-nav__link {
  display: inline-block;
  padding: 0.45rem 0.8rem;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 400;
  color: var(--c-text-secondary);
  text-decoration: none;
  transition: all var(--transition-fast);
}

.site-nav__link:hover {
  color: var(--c-text);
  background: var(--c-surface-hover);
}

.site-nav__link[aria-current="page"] {
  color: var(--c-accent);
  background: var(--c-accent-glow);
}

/* The drawer's CTA exists for mobile, where the header button is hidden.
   On desktop both would show — hide the drawer copy there. */
.site-nav__cta { display: none; }

.site-header__cta { flex-shrink: 0; }

.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  margin-left: auto;
  background: transparent;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  color: var(--c-text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.nav-toggle:hover { border-color: var(--c-border-hover); color: var(--c-text); }
.nav-toggle svg { width: 18px; height: 18px; }
.nav-toggle__close { display: none; }
.nav-toggle[aria-expanded="true"] .nav-toggle__open { display: none; }
.nav-toggle[aria-expanded="true"] .nav-toggle__close { display: block; }

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.72rem 1.4rem;
  border: none;
  border-radius: var(--radius-sm);
  font-family: var(--font-main);
  font-size: 0.88rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  line-height: 1.2;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition-normal);
  white-space: nowrap;
}

.btn--primary {
  /* Light stop darkened to #6d5ce6 so white label text clears AA (4.86:1). */
  background: linear-gradient(135deg, #6d5ce6, #5a4ad4);
  color: #fff;
  box-shadow: 0 4px 16px rgba(124, 106, 239, 0.25);
}

.btn--primary:hover {
  background: linear-gradient(135deg, var(--c-accent-hover), #6b5ae0);
  box-shadow: 0 6px 24px rgba(124, 106, 239, 0.35);
  transform: translateY(-1px);
}

.btn--primary:active { transform: translateY(0); }

.btn--primary:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.btn--ghost {
  background: transparent;
  border: 1px solid var(--c-border-hover);
  color: var(--c-text-secondary);
}

.btn--ghost:hover {
  border-color: var(--c-border-active);
  color: var(--c-text);
  background: var(--c-accent-glow);
}

.btn--sm { padding: 0.5rem 0.95rem; font-size: 0.8rem; }
.btn--block { width: 100%; }

/* ===== Hero ===== */
.hero {
  padding-block: clamp(3.5rem, 10vw, 7rem) clamp(2.5rem, 6vw, 4.5rem);
  text-align: center;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.9rem;
  background: var(--c-accent-glow);
  border: 1px solid var(--c-border-hover);
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-accent-hover);
  margin-bottom: 1.75rem;
}

.hero__title {
  font-size: clamp(2.1rem, 6vw, 3.6rem);
  font-weight: 300;
  letter-spacing: -0.03em;
  line-height: 1.12;
  margin-inline: auto;
  max-width: 18ch;
}

.hero__title strong {
  font-weight: 500;
  background: linear-gradient(135deg, var(--c-accent-hover), #b8a6ff);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero__lead {
  margin: 1.5rem auto 0;
  max-width: 46rem;
  font-size: clamp(0.95rem, 1.6vw, 1.08rem);
  font-weight: 300;
  color: var(--c-text-secondary);
  line-height: 1.8;
}

.hero__actions {
  margin-top: 2.25rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
}

.hero__note {
  margin-top: 1.5rem;
  font-size: 0.78rem;
  color: var(--c-text-muted);
  font-weight: 300;
}

/* ===== Cards ===== */
.card-grid {
  display: grid;
  gap: 1rem;
}

.card-grid--2 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.card-grid--3 { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }

.card {
  padding: 1.75rem;
  background: var(--c-surface);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  transition: border-color var(--transition-normal), background var(--transition-normal);
}

.card:hover {
  border-color: var(--c-border-hover);
  background: var(--c-surface-elevated);
}

.card__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  margin-bottom: 1.1rem;
  border-radius: var(--radius-sm);
  background: var(--c-accent-glow);
  color: var(--c-accent);
}

.card__icon svg { width: 19px; height: 19px; }

.card__title {
  font-size: 1.02rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  margin-bottom: 0.6rem;
}

.card__text {
  font-size: 0.88rem;
  font-weight: 300;
  color: var(--c-text-secondary);
  line-height: 1.75;
}

.card__meta {
  margin-top: 1.1rem;
  padding-top: 1.1rem;
  border-top: 1px solid var(--c-hairline);
  font-size: 0.75rem;
  color: var(--c-text-muted);
  letter-spacing: 0.03em;
}

/* Bulleted list inside cards and prose blocks */
.tick-list {
  list-style: none;
  display: grid;
  gap: 0.55rem;
  font-size: 0.86rem;
  font-weight: 300;
  color: var(--c-text-secondary);
  line-height: 1.65;
}

.tick-list li {
  position: relative;
  padding-left: 1.15rem;
}

.tick-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 5px;
  height: 5px;
  border-radius: 1px;
  background: var(--c-accent);
  opacity: 0.75;
  transform: rotate(45deg);
}

/* ===== Tags ===== */
.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 1.1rem;
}

.tag {
  display: inline-block;
  padding: 0.24rem 0.6rem;
  border: 1px solid var(--c-border-hover);
  border-radius: 999px;
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--c-text-secondary);
  background: rgba(255, 255, 255, 0.02);
  white-space: nowrap;
}

.tag--accent {
  color: var(--c-accent-hover);
  border-color: var(--c-border-active);
  background: var(--c-accent-glow);
}

.tag--restricted {
  color: var(--c-restricted);
  border-color: var(--c-restricted-border);
  background: var(--c-restricted-glow);
}

/* ===== Steps ===== */
.steps {
  list-style: none;
  display: grid;
  gap: 0.75rem;
  counter-reset: step;
}

.step {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.15rem 1.35rem;
  background: var(--c-input-bg);
  border: 1px solid var(--c-input-border);
  border-radius: var(--radius-md);
}

.step__num {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--c-accent-glow);
  border: 1px solid var(--c-border-active);
  color: var(--c-accent-hover);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
}

.step__title {
  font-size: 0.92rem;
  font-weight: 500;
  margin-bottom: 0.2rem;
}

.step__text {
  font-size: 0.82rem;
  font-weight: 300;
  color: var(--c-text-secondary);
  line-height: 1.7;
}

.step--gate {
  border-color: var(--c-warning-border);
  background: var(--c-warning-bg);
}

.step--gate .step__num {
  background: rgba(251, 191, 36, 0.1);
  border-color: var(--c-warning-border);
  color: var(--c-warning);
}

/* ===== Tables ===== */
.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  background: var(--c-surface);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  -webkit-overflow-scrolling: touch;
}

.data-table {
  width: 100%;
  min-width: 640px;
  border-collapse: collapse;
  font-size: 0.85rem;
}

.data-table caption {
  padding: 1rem 1.25rem;
  text-align: left;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-text-muted);
  border-bottom: 1px solid var(--c-hairline);
}

.data-table th,
.data-table td {
  padding: 0.85rem 1.1rem;
  text-align: left;
  border-bottom: 1px solid var(--c-hairline);
  vertical-align: middle;
}

.data-table thead th {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--c-text-muted);
  background: rgba(255, 255, 255, 0.02);
  white-space: nowrap;
}

.data-table tbody tr:last-child th,
.data-table tbody tr:last-child td { border-bottom: none; }

.data-table tbody tr { transition: background var(--transition-fast); }
.data-table tbody tr:hover { background: rgba(124, 106, 239, 0.035); }

.data-table th[scope="row"] {
  font-weight: 500;
  color: var(--c-text);
}

.data-table .num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  text-align: right;
  white-space: nowrap;
}

.data-table .center { text-align: center; }

/* Group heading rows inside a table body */
.data-table .row-group th {
  padding-top: 1.35rem;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-accent);
  background: transparent;
}

.data-table .row-group:hover { background: transparent; }

.model-name {
  display: block;
  font-weight: 500;
  letter-spacing: -0.01em;
}

.model-desc {
  display: block;
  margin-top: 0.15rem;
  font-size: 0.75rem;
  font-weight: 300;
  color: var(--c-text-muted);
}

/* Capability marks */
.mark {
  display: inline-block;
  font-size: 0.95rem;
  line-height: 1;
}

.mark--yes { color: var(--c-success); }
.mark--partial { color: var(--c-warning); }
.mark--no { color: var(--c-text-muted); opacity: 0.55; }

.table-note {
  margin-top: 0.9rem;
  font-size: 0.76rem;
  font-weight: 300;
  color: var(--c-text-muted);
  line-height: 1.7;
}

.scroll-hint {
  display: none;
  margin-bottom: 0.6rem;
  font-size: 0.72rem;
  color: var(--c-text-muted);
}

/* ===== Restricted (Nova) Panel ===== */
.nova {
  position: relative;
  padding: clamp(1.75rem, 4vw, 2.5rem);
  background: linear-gradient(160deg, rgba(212, 175, 90, 0.05), rgba(16, 16, 28, 0.85) 55%);
  border: 1px solid var(--c-restricted-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
}

.nova::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(212, 175, 90, 0.5), transparent);
}

.nova__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.1rem;
}

.nova__title {
  font-size: clamp(1.25rem, 2.6vw, 1.6rem);
  font-weight: 400;
  letter-spacing: -0.02em;
  color: var(--c-restricted);
}

.nova__text {
  font-size: 0.92rem;
  font-weight: 300;
  color: var(--c-text-secondary);
  line-height: 1.8;
  max-width: 52rem;
}

.nova__limits {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 0.75rem;
  margin-top: 1.75rem;
}

.limit {
  padding: 1.15rem 1.25rem;
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid var(--c-restricted-border);
  border-radius: var(--radius-md);
}

.limit__value {
  font-family: var(--font-mono);
  font-size: 1.75rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--c-restricted);
  line-height: 1.1;
}

.limit__label {
  margin-top: 0.45rem;
  font-size: 0.78rem;
  font-weight: 300;
  color: var(--c-text-secondary);
  line-height: 1.6;
}

.nova__actions { margin-top: 1.75rem; }

/* ===== Notices ===== */
.notice {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 1rem 1.2rem;
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  font-weight: 300;
  line-height: 1.7;
}

.notice__icon { flex-shrink: 0; width: 18px; height: 18px; margin-top: 0.15rem; }

.notice--info {
  background: var(--c-accent-glow);
  border: 1px solid var(--c-border-hover);
  color: var(--c-text-secondary);
}

.notice--info .notice__icon { color: var(--c-accent); }

.notice--warn {
  background: var(--c-warning-bg);
  border: 1px solid var(--c-warning-border);
  color: var(--c-text-secondary);
}

.notice--warn .notice__icon { color: var(--c-warning); }

.notice--error {
  background: var(--c-error-bg);
  border: 1px solid var(--c-error-border);
  color: var(--c-error);
}

.notice--success {
  background: var(--c-success-bg);
  border: 1px solid var(--c-success-border);
  color: var(--c-success);
}

.notice strong { font-weight: 500; color: var(--c-text); }

/* ===== Forms ===== */
.form {
  padding: clamp(1.5rem, 4vw, 2.25rem);
  background: var(--c-surface);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-xl);
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.3), 0 0 80px var(--c-accent-glow);
}

.form__section + .form__section {
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 1px solid var(--c-hairline);
}

.form__section-title {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-accent);
  margin-bottom: 1.25rem;
}

.form-field { margin-bottom: 1.25rem; }
.form-field:last-child { margin-bottom: 0; }

.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 0 1rem;
}

.form-label {
  display: block;
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-text-secondary);
  margin-bottom: 0.5rem;
}

/* Unscoped so the legend above the form and the per-field markers read as the
   same symbol. */
.req {
  color: var(--c-accent);
  margin-left: 0.2rem;
}

.form-label .opt {
  margin-left: 0.35rem;
  font-size: 0.92em;
  letter-spacing: 0.04em;
  text-transform: none;
  color: var(--c-text-muted);
  font-weight: 300;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 0.72rem 0.9rem;
  background: var(--c-input-bg);
  border: 1px solid var(--c-input-border);
  border-radius: var(--radius-sm);
  color: var(--c-text);
  font-family: var(--font-main);
  font-size: 0.9rem;
  font-weight: 400;
  line-height: 1.5;
  transition: border-color var(--transition-normal), background var(--transition-normal), box-shadow var(--transition-normal);
  outline: none;
}

.form-textarea {
  min-height: 8.5rem;
  resize: vertical;
  font-weight: 300;
  line-height: 1.7;
}

.form-select {
  appearance: none;
  cursor: pointer;
  padding-right: 2.4rem;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%238a8aa4' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.85rem center;
}

.form-select option,
.form-select optgroup {
  background: var(--c-surface-solid);
  color: var(--c-text);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--c-text-muted);
  font-weight: 300;
}

.form-input:hover,
.form-select:hover,
.form-textarea:hover { border-color: var(--c-border-hover); }

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--c-input-focus);
  background: rgba(124, 106, 239, 0.03);
  box-shadow: 0 0 0 3px var(--c-accent-glow);
}

.form-input[aria-invalid="true"],
.form-select[aria-invalid="true"],
.form-textarea[aria-invalid="true"] {
  border-color: var(--c-error-border);
  background: var(--c-error-bg);
}

.form-hint {
  margin-top: 0.4rem;
  font-size: 0.72rem;
  font-weight: 300;
  color: var(--c-text-muted);
  line-height: 1.6;
}

.form-error {
  display: none;
  margin-top: 0.4rem;
  font-size: 0.74rem;
  color: var(--c-error);
  font-weight: 400;
}

.form-error.is-shown { display: block; }

/* Prefix/suffix adornment for the budget field */
.input-affix {
  display: flex;
  align-items: stretch;
  border: 1px solid var(--c-input-border);
  border-radius: var(--radius-sm);
  background: var(--c-input-bg);
  transition: border-color var(--transition-normal), box-shadow var(--transition-normal);
}

.input-affix:focus-within {
  border-color: var(--c-input-focus);
  box-shadow: 0 0 0 3px var(--c-accent-glow);
}

.input-affix__text {
  display: flex;
  align-items: center;
  padding-inline: 0.9rem;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--c-text-muted);
  background: rgba(255, 255, 255, 0.02);
  white-space: nowrap;
}

.input-affix__text:first-child { border-right: 1px solid var(--c-input-border); }
.input-affix__text:last-child { border-left: 1px solid var(--c-input-border); }

.input-affix .form-input {
  border: none;
  background: transparent;
  border-radius: 0;
}

.input-affix .form-input:focus {
  box-shadow: none;
  background: transparent;
}

/* The inner input has its border stripped, so the invalid state has to be
   painted on the wrapper or this field alone shows no error treatment. */
.input-affix:has(.form-input[aria-invalid="true"]) {
  border-color: var(--c-error-border);
  background: var(--c-error-bg);
}

/* Repeated URL inputs */
.url-list {
  display: grid;
  gap: 0.5rem;
}

/* Honeypot — off-screen rather than display:none so naive bots still fill it. */
.hp-field {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
  opacity: 0;
  pointer-events: none;
}

.form__actions {
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 1px solid var(--c-hairline);
}

.form__status { margin-bottom: 1rem; }
.form__status:empty { margin-bottom: 0; }

.turnstile-slot { margin-bottom: 1.25rem; }
.turnstile-slot:empty { margin-bottom: 0; }

/* ===== Prose (policy pages) ===== */
.prose {
  font-size: 0.92rem;
  font-weight: 300;
  color: var(--c-text-secondary);
  line-height: 1.85;
}

.prose > * + * { margin-top: 1.1rem; }

.prose h2 {
  margin-top: 2.75rem;
  padding-top: 1.75rem;
  border-top: 1px solid var(--c-hairline);
  font-size: 1.2rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--c-text);
  line-height: 1.4;
}

.prose h2:first-child { margin-top: 0; padding-top: 0; border-top: none; }

.prose h3 {
  margin-top: 1.85rem;
  font-size: 0.98rem;
  font-weight: 500;
  color: var(--c-text);
}

.prose strong { color: var(--c-text); font-weight: 500; }

.prose a { color: var(--c-accent-hover); text-decoration: underline; text-underline-offset: 2px; }
.prose a:hover { color: var(--c-text); }

.prose ul, .prose ol { padding-left: 1.3rem; display: grid; gap: 0.5rem; }
.prose li::marker { color: var(--c-accent); }

.prose code {
  font-family: var(--font-mono);
  font-size: 0.86em;
  padding: 0.1em 0.35em;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.05);
  color: var(--c-text);
}

.doc-meta {
  margin-bottom: 2.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--c-hairline);
  font-size: 0.78rem;
  color: var(--c-text-muted);
  letter-spacing: 0.04em;
}

/* ===== Footer ===== */
.site-footer {
  position: relative;
  z-index: 10;
  margin-top: clamp(3.5rem, 8vw, 6rem);
  border-top: 1px solid var(--c-hairline);
  background: rgba(8, 8, 16, 0.6);
}

.site-footer__inner {
  max-width: var(--container);
  margin-inline: auto;
  padding: clamp(2.5rem, 5vw, 3.5rem) 1.5rem 2rem;
}

.site-footer__top {
  display: grid;
  grid-template-columns: minmax(220px, 1.4fr) repeat(auto-fit, minmax(150px, 1fr));
  gap: 2rem;
  padding-bottom: 2.25rem;
  border-bottom: 1px solid var(--c-hairline);
}

.site-footer__tagline {
  margin-top: 0.9rem;
  font-size: 0.82rem;
  font-weight: 300;
  color: var(--c-text-muted);
  line-height: 1.75;
  max-width: 26rem;
}

.site-footer__title {
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-text-muted);
  margin-bottom: 0.9rem;
}

.site-footer__links {
  list-style: none;
  display: grid;
  gap: 0.55rem;
}

.site-footer__links a {
  font-size: 0.84rem;
  font-weight: 300;
  color: var(--c-text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.site-footer__links a:hover { color: var(--c-accent-hover); }

.site-footer__bottom {
  padding-top: 1.75rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
  justify-content: space-between;
  font-size: 0.74rem;
  color: var(--c-text-muted);
  letter-spacing: 0.04em;
}

.site-footer__legal { font-weight: 300; line-height: 1.8; }

/* ===== Floating "Browser version" button ===== */
.browser-fab {
  position: fixed;
  right: 1.25rem;
  bottom: 1.25rem;
  z-index: 90;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.7rem 1.15rem;
  background: rgba(16, 16, 28, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--c-border-active);
  border-radius: 999px;
  color: var(--c-text);
  font-size: 0.82rem;
  font-weight: 500;
  text-decoration: none;
  box-shadow: 0 6px 28px rgba(0, 0, 0, 0.45), 0 0 30px var(--c-accent-glow);
  transition: all var(--transition-normal);
}

.browser-fab:hover {
  border-color: var(--c-accent);
  background: rgba(24, 22, 44, 0.95);
  box-shadow: 0 8px 34px rgba(0, 0, 0, 0.5), 0 0 44px var(--c-accent-glow-strong);
  transform: translateY(-2px);
}

.browser-fab svg { width: 15px; height: 15px; color: var(--c-accent); flex-shrink: 0; }

/* ===== Centered pages (404, thanks) ===== */
/* Not 100vh minus the header: .page already offsets the header, so subtracting
   it again pushed the footer off screen and forced a scrollbar on both short
   pages. 60vh centres the block without overrunning the viewport. */
.centered {
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(3rem, 8vw, 5rem) 1.5rem;
  text-align: center;
}

/* .centered centres its text, but a notice is a flex row with a leading icon —
   centring the copy beside a left-pinned icon reads as a misalignment. */
.centered .notice {
  text-align: left;
  max-width: 32rem;
  margin-inline: auto;
}

.centered__inner {
  max-width: 34rem;
  width: 100%;
}

.status-code {
  font-family: var(--font-mono);
  font-size: clamp(3rem, 10vw, 4.5rem);
  font-weight: 600;
  letter-spacing: 0.08em;
  line-height: 1;
  background: linear-gradient(135deg, var(--c-accent), var(--c-accent-hover));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 1.25rem;
}

.status-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--c-success-bg);
  border: 1px solid var(--c-success-border);
  color: var(--c-success);
}

.status-icon svg { width: 26px; height: 26px; }

/* ===== Focus visibility ===== */
:focus-visible {
  outline: 2px solid var(--c-accent);
  outline-offset: 2px;
  border-radius: 2px;
}

.form-input:focus-visible,
.form-select:focus-visible,
.form-textarea:focus-visible { outline: none; }

/* ===== Utilities ===== */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.text-center { text-align: center; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.nowrap { white-space: nowrap; }

/* ===== Responsive ===== */
@media (max-width: 860px) {
  .nav-toggle { display: inline-flex; }

  .site-header__cta { display: none; }

  .site-nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    margin-left: 0;
    padding: 1rem 1.5rem 1.5rem;
    background: rgba(10, 10, 20, 0.97);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--c-hairline);
    display: none;
  }

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

  .site-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0.15rem;
  }

  .site-nav__link {
    display: block;
    padding: 0.75rem 0.9rem;
    font-size: 0.92rem;
  }

  .site-nav__cta {
    display: block;
    margin-top: 0.75rem;
    padding-top: 0.9rem;
    border-top: 1px solid var(--c-hairline);
  }

  .scroll-hint { display: block; }
}

@media (max-width: 600px) {
  .container { padding-inline: 1.15rem; }
  .site-header__inner { padding-inline: 1.15rem; }
  .site-footer__inner { padding-inline: 1.15rem; }

  .hero__actions .btn { width: 100%; }

  .site-footer__top { grid-template-columns: 1fr; gap: 1.75rem; }

  .browser-fab {
    right: 0.85rem;
    bottom: 0.85rem;
    padding: 0.62rem 0.95rem;
    font-size: 0.78rem;
  }

  .form-row { grid-template-columns: 1fr; }
}

/* ===== Reduced motion ===== */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  .bg-orb,
  .bg-noise,
  .bg-grid { animation: none; }

  *, *::before, *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }

  .btn--primary:hover,
  .browser-fab:hover { transform: none; }
}

/* ===== Print ===== */
@media print {
  .bg-effects, .bg-grid, .bg-noise, .bg-vignette,
  .browser-fab, .site-header, .skip-link { display: none !important; }

  body { background: #fff; color: #000; }
  .page { padding-top: 0; }
  .prose, .prose h2, .prose h3, .prose strong { color: #000; }
}