/* =============================================
   BUILDERS — Readability-First Theme
   builders.metalbrain.net
   ============================================= */

/* ── Design Tokens ── */
:root {
  color-scheme: dark;

  /* Legacy palette references */
  --palette-strawberry: #e63946;
  --palette-honeydew: #f1faee;
  --palette-frosted-blue: #a8dadc;
  --palette-steel-blue: #457b9d;
  --palette-deep-space: #1d3557;

  /* BuildersHub readability palette */
  --bh-bg-canvas: #050505;
  --bh-bg-canvas-elevated: #0b0b0c;
  --bh-bg-surface: #14213d;
  --bh-bg-surface-soft: rgba(20, 33, 61, 0.88);
  --bh-bg-surface-hover: #1b2c50;

  --bh-fg-primary: #ffffff;
  --bh-fg-secondary: #f2f2f2;
  --bh-fg-tertiary: #d7dbe2;
  --bh-fg-muted: #aab2bf;

  --bh-border-subtle: rgba(255, 255, 255, 0.10);
  --bh-border-default: rgba(255, 255, 255, 0.12);
  --bh-border-strong: rgba(255, 255, 255, 0.18);
  --bh-border-accent: rgba(190, 136, 49, 0.26);

  --bh-accent-brand: #be8831;
  --bh-accent-brand-hover: #d39a3c;
  --bh-accent-brand-soft: rgba(190, 136, 49, 0.14);
  --bh-accent-brand-strong: rgba(190, 136, 49, 0.24);

  --bh-state-success: #2fb36d;
  --bh-state-warning: #d7a12d;
  --bh-state-error: #d95d63;
  --bh-state-info: #7bb4ff;

  /* Semantic aliases for existing selectors */
  --palette-black: var(--bh-bg-canvas);
  --palette-prussian: var(--bh-bg-surface);
  --palette-orange: var(--bh-accent-brand);
  --palette-alabaster: var(--bh-fg-secondary);
  --palette-white: var(--bh-fg-primary);

  --color-bg: var(--bh-bg-canvas);
  --color-surface: var(--bh-bg-surface);
  --color-surface-soft: var(--bh-bg-surface-soft);
  --color-text: var(--bh-fg-secondary);
  --color-text-secondary: var(--bh-fg-secondary);
  --color-text-bright: var(--bh-fg-primary);
  --color-text-soft: var(--bh-fg-tertiary);
  --color-text-muted: var(--bh-fg-muted);
  --color-accent: var(--bh-accent-brand);
  --color-border: var(--bh-border-default);
  --color-border-soft: var(--bh-border-accent);

  --card-bg: rgba(20, 33, 61, 0.82);
  --card-bg-soft: rgba(20, 33, 61, 0.90);
  --card-border: var(--bh-border-default);

  /* Spacing scale (4px base unit) */
  --sp-1: 4px;
  --sp-2: 8px;
  --sp-3: 12px;
  --sp-4: 16px;
  --sp-5: 20px;
  --sp-6: 24px;
  --sp-8: 32px;
  --sp-10: 40px;
  --sp-12: 48px;
  --sp-16: 64px;
  --sp-24: 96px;

  /* Typography scale */
  --text-xs: 0.75rem;    /* 12px */
  --text-sm: 0.875rem;   /* 14px */
  --text-base: 1rem;     /* 16px */
  --text-lg: 1.125rem;   /* 18px */
  --text-xl: 1.25rem;    /* 20px */
  --text-2xl: 1.5rem;    /* 24px */
  --text-3xl: 1.875rem;  /* 30px */

  /* Readability widths */
  --reading-max: 72ch;
  --reading-tight: 60ch;
  --container-max: 1120px;
  --container-reading: 680px;
  --container-narrow: 560px;

  /* Radius tokens */
  --radius-pill: 999px;
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 12px;
  --radius-xs: 8px;

  /* Shadow tokens */
  --shadow-xs: 0 1px 3px rgba(0, 0, 0, 0.32);
  --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.40);
  --shadow-md: 0 10px 30px rgba(0, 0, 0, 0.50);
  --shadow-lg: 0 24px 64px rgba(0, 0, 0, 0.60);
  --glow-accent: 0 0 24px rgba(190, 136, 49, 0.14);

  /* Motion tokens */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --motion-fast: 150ms ease;
  --motion-base: 220ms var(--ease-out);
  --motion-slow: 400ms var(--ease-out);
}

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

/* ── Base ── */
html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "IBM Plex Sans", "Segoe UI", system-ui, sans-serif;
  font-size: var(--text-base);
  line-height: 1.68;
  color: var(--color-text);
  background:
    radial-gradient(ellipse 72% 46% at 50% 0%, rgba(20, 33, 61, 0.55) 0%, rgba(5, 5, 5, 0.96) 58%, var(--bh-bg-canvas) 100%);
  background-color: var(--bh-bg-canvas);
  min-height: 100vh;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: inherit;
  text-decoration: none;
}

/* ── Keyframes ── */
@keyframes fade-up {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes scale-in {
  from { opacity: 0; transform: scale(0.96) translateY(12px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}

.anim-fade-up {
  animation: fade-up 0.65s var(--ease-out) both;
}

.anim-delay-1 { animation-delay: 80ms; }
.anim-delay-2 { animation-delay: 170ms; }
.anim-delay-3 { animation-delay: 260ms; }
.anim-delay-4 { animation-delay: 350ms; }

.anim-scale-in {
  animation: scale-in 0.6s var(--ease-out) both;
  animation-delay: 180ms;
}

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

  .anim-fade-up,
  .anim-scale-in {
    animation: none;
  }
}

/* ── Typography ── */
h1, h2, h3, h4 {
  font-family: "Sora", "Segoe UI", sans-serif;
  letter-spacing: -0.025em;
  line-height: 1.12;
  margin: 0 0 var(--sp-4);
  color: var(--color-text-bright);
}

h1 { font-size: clamp(2.6rem, 4.8vw, 4rem); font-weight: 700; }
h2 { font-size: clamp(1.95rem, 3vw, 2.8rem); font-weight: 700; }
h3 { font-size: var(--text-xl); font-weight: 600; }
h4 { font-size: var(--text-lg); font-weight: 600; }

/* ── Navbar ── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(5, 5, 5, 0.88);
  -webkit-backdrop-filter: blur(20px) saturate(150%);
          backdrop-filter: blur(20px) saturate(150%);
  border-bottom: 1px solid var(--bh-border-subtle);
}

.nav {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: var(--sp-4) var(--sp-8);
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-3);
  font-family: "Sora", "Segoe UI", sans-serif;
  font-size: var(--text-base);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-text-bright);
}

.brand-mark {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-xs);
  background: linear-gradient(135deg, var(--bh-accent-brand) 0%, var(--bh-accent-brand-hover) 100%);
  box-shadow: 0 0 0 3px rgba(190, 136, 49, 0.16), var(--glow-accent);
  transition: transform var(--motion-base), box-shadow var(--motion-base);
  flex-shrink: 0;
}

.brand:hover .brand-mark {
  transform: rotate(8deg) scale(1.05);
  box-shadow: 0 0 0 5px rgba(190, 136, 49, 0.20), 0 0 30px rgba(190, 136, 49, 0.22);
}

.nav-links {
  display: flex;
  gap: var(--sp-6);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-soft);
  align-items: center;
}

.nav-links a:not(.btn) {
  transition: color var(--motion-fast);
}

.nav-links a:not(.btn):hover {
  color: var(--color-text-bright);
}

/* Hamburger */
.nav-toggle {
  display: none;
}

.nav-toggle-label {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: var(--sp-2);
  border-radius: var(--radius-xs);
}

.nav-toggle-label span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text-bright);
  border-radius: var(--radius-pill);
  transition: transform var(--motion-base), opacity var(--motion-base);
}

.nav-toggle:checked ~ .nav-toggle-label span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle:checked ~ .nav-toggle-label span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.nav-toggle:checked ~ .nav-toggle-label span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  min-height: 44px;
  border-radius: var(--radius-pill);
  padding: 11px 22px;
  font-family: inherit;
  font-size: var(--text-sm);
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition:
    transform var(--motion-base),
    box-shadow var(--motion-base),
    background var(--motion-fast),
    border-color var(--motion-fast),
    color var(--motion-fast);
  white-space: nowrap;
}

.btn.primary {
  background: var(--bh-accent-brand);
  color: var(--bh-bg-canvas-elevated);
  box-shadow: 0 8px 24px rgba(190, 136, 49, 0.28);
}

.btn.primary:hover {
  background: var(--bh-accent-brand-hover);
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(190, 136, 49, 0.34);
}

.btn.primary:active {
  transform: translateY(0);
  box-shadow: 0 4px 16px rgba(190, 136, 49, 0.22);
}

.btn.primary:disabled,
.btn.primary[disabled] {
  background: rgba(190, 136, 49, 0.30);
  color: rgba(11, 11, 12, 0.55);
  box-shadow: none;
  cursor: not-allowed;
  transform: none;
}

.btn.ghost {
  border-color: var(--bh-border-strong);
  color: var(--color-text-secondary, var(--bh-fg-secondary));
  background: transparent;
}

.btn.ghost:hover {
  border-color: var(--bh-accent-brand);
  background: rgba(190, 136, 49, 0.08);
  transform: translateY(-2px);
}

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

.btn.secondary {
  background: rgba(20, 33, 61, 0.92);
  color: var(--color-text-bright);
  border-color: var(--bh-border-default);
}

.btn.secondary:hover {
  background: var(--bh-bg-surface-hover);
  border-color: var(--bh-border-strong);
  transform: translateY(-2px);
}

.btn.inline {
  padding: 0;
  border-radius: 0;
  background: transparent;
  color: var(--bh-accent-brand);
  font-size: inherit;
  font-weight: 600;
  border: none;
  border-bottom: 1.5px solid currentColor;
  transition: color var(--motion-fast), opacity var(--motion-fast);
}

.btn.inline:hover {
  color: var(--bh-accent-brand-hover);
  opacity: 1;
}

.btn.nav-cta {
  min-height: 40px;
  padding: 9px 18px;
  font-size: var(--text-sm);
  background: var(--bh-accent-brand);
  color: var(--bh-bg-canvas-elevated);
  box-shadow: 0 2px 12px rgba(190, 136, 49, 0.24);
}

.btn.nav-cta:hover {
  background: var(--bh-accent-brand-hover);
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(190, 136, 49, 0.30);
}

/* ── Main layout ── */
main {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: var(--sp-12) var(--sp-8) var(--sp-24);
}

/* ── Hero ── */
.hero {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--sp-12);
  align-items: center;
  padding: var(--sp-16) 0 var(--sp-8);
}

.hero-content {
  max-width: 42rem;
}

.eyebrow {
  display: inline-block;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: var(--text-xs);
  font-weight: 700;
  color: var(--bh-accent-brand);
  margin: 0 0 var(--sp-4);
  padding: 3px var(--sp-3);
  background: var(--bh-accent-brand-soft);
  border-radius: var(--radius-pill);
  border: 1px solid var(--bh-border-accent);
}

.hero-subtitle {
  max-width: var(--reading-tight);
  font-size: var(--text-lg);
  line-height: 1.72;
  color: var(--color-text-soft);
  margin: 0 0 var(--sp-6);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-4);
  margin-bottom: var(--sp-8);
}

.hero-metrics {
  display: flex;
  gap: var(--sp-6);
  flex-wrap: wrap;
  font-size: var(--text-sm);
  padding-top: var(--sp-6);
  border-top: 1px solid var(--bh-border-subtle);
}

.metric-value {
  display: block;
  font-weight: 700;
  font-size: var(--text-base);
  letter-spacing: -0.01em;
  color: var(--color-text-bright);
}

.metric-label {
  color: var(--color-text-soft);
}

.hero-card {
  background: linear-gradient(
    135deg,
    rgba(20, 33, 61, 0.94) 0%,
    rgba(20, 33, 61, 0.82) 100%
  );
  border-radius: var(--radius-lg);
  padding: var(--sp-8);
  border: 1px solid var(--bh-border-default);
  box-shadow: var(--shadow-lg), var(--glow-accent);
  -webkit-backdrop-filter: blur(12px);
          backdrop-filter: blur(12px);
  transition: transform var(--motion-slow), box-shadow var(--motion-slow), border-color var(--motion-fast);
}

.hero-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg), 0 0 34px rgba(190, 136, 49, 0.18);
  border-color: var(--bh-border-strong);
}

.hero-card-header,
.hero-card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--sp-4);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.hero-card-header p {
  margin: 0;
}

.hero-card-body {
  padding: var(--sp-6) 0;
  border-top: 1px solid var(--bh-border-subtle);
  border-bottom: 1px solid var(--bh-border-subtle);
  margin: var(--sp-4) 0;
}

.hero-card-body h3 {
  margin-top: 0;
  font-size: var(--text-xl);
}

.hero-card-body p {
  color: var(--color-text-soft);
  margin: 0;
  line-height: 1.7;
}

.pill {
  display: inline-flex;
  padding: 3px var(--sp-3);
  border-radius: var(--radius-pill);
  background: var(--bh-accent-brand-soft);
  color: var(--bh-accent-brand);
  font-size: var(--text-xs);
  font-weight: 600;
  margin-right: var(--sp-2);
}

.signal {
  color: var(--bh-accent-brand);
  font-weight: 700;
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* ── Sections ── */
.section {
  padding: var(--sp-24) 0 var(--sp-8);
}

.section-heading {
  max-width: var(--container-reading);
  margin-bottom: var(--sp-8);
}

.section-heading h2 {
  margin-bottom: var(--sp-4);
}

.section-heading p {
  max-width: var(--reading-max);
  font-size: var(--text-lg);
  color: var(--color-text-soft);
  line-height: 1.72;
  margin: 0;
}

/* ── Feature cards ── */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--sp-4);
}

.feature-card {
  background: var(--card-bg);
  border-radius: var(--radius-md);
  padding: var(--sp-6);
  border: 1px solid var(--card-border);
  box-shadow: var(--shadow-sm);
  transition: transform var(--motion-base), box-shadow var(--motion-base), border-color var(--motion-base);
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--bh-border-strong);
}

.feature-card h3 {
  margin-bottom: var(--sp-2);
}

.feature-card p {
  color: var(--color-text-soft);
  line-height: 1.68;
  margin: 0;
  font-size: var(--text-base);
}

/* ── Survey section ── */
.survey {
  background: linear-gradient(135deg, rgba(20, 33, 61, 0.22) 0%, transparent 55%);
  border-radius: var(--radius-lg);
  margin-inline: calc(-1 * var(--sp-4));
  padding-inline: var(--sp-4);
}

/* ── Waitlist section ── */
.waitlist {
  background: linear-gradient(135deg, rgba(190, 136, 49, 0.06) 0%, transparent 55%);
  border-radius: var(--radius-lg);
  margin-inline: calc(-1 * var(--sp-4));
  padding-inline: var(--sp-4);
}

/* Forms */
.survey-form,
.waitlist-form {
  background: var(--card-bg-soft);
  border-radius: var(--radius-lg);
  padding: var(--sp-8);
  display: grid;
  gap: var(--sp-6);
  border: 1px solid var(--bh-border-default);
  box-shadow: var(--shadow-lg);
  max-width: var(--container-narrow);
  -webkit-backdrop-filter: blur(12px);
          backdrop-filter: blur(12px);
}

.survey-form label,
.waitlist-form label {
  display: grid;
  gap: var(--sp-2);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-bright);
}

.recaptcha-stepup {
  display: none;
  gap: var(--sp-2);
  margin-top: var(--sp-2);
}

.recaptcha-stepup.is-visible {
  display: grid;
}

.recaptcha-row {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  flex-wrap: wrap;
}

.recaptcha-widget {
  min-height: 78px;
}

.recaptcha-badge {
  display: none;
  align-items: center;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(47, 179, 109, 0.35);
  background: rgba(47, 179, 109, 0.12);
  color: #a6f3c5;
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.recaptcha-badge.is-visible {
  display: inline-flex;
}

.recaptcha-hint {
  margin: 0;
  font-size: var(--text-sm);
  color: var(--color-text-soft);
  line-height: 1.6;
}

.recaptcha-success {
  display: none;
  margin: 0;
  padding: var(--sp-2) var(--sp-3);
  border-radius: var(--radius-sm);
  background: rgba(47, 179, 109, 0.12);
  color: #a6f3c5;
  font-size: var(--text-sm);
}

.recaptcha-success.is-visible {
  display: block;
}

.field {
  display: block;
}

.field input,
.field select {
  width: 100%;
  min-height: 46px;
  padding: 11px var(--sp-4);
  border-radius: var(--radius-sm);
  border: 1px solid var(--bh-border-default);
  background: rgba(5, 5, 5, 0.78);
  font-family: inherit;
  font-size: var(--text-base);
  line-height: 1.5;
  color: var(--color-text-bright);
  outline: none;
  transition: border-color var(--motion-fast), box-shadow var(--motion-fast), background var(--motion-fast);
  -webkit-appearance: none;
  appearance: none;
}

.field select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23be8831' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  background-color: rgba(5, 5, 5, 0.78);
  padding-right: var(--sp-8);
}

.field select option {
  background: var(--bh-bg-surface);
  color: var(--color-text-bright);
}

.field input:focus,
.field select:focus {
  border-color: var(--bh-accent-brand);
  box-shadow: 0 0 0 3px rgba(190, 136, 49, 0.16);
  background: rgba(5, 5, 5, 0.88);
}

.field input::placeholder {
  color: var(--color-text-muted);
}

.survey-note {
  margin: 0;
  font-size: var(--text-sm);
  color: var(--color-text-soft);
  line-height: 1.62;
}

.survey-note a {
  color: var(--bh-accent-brand);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.survey-note a:hover {
  color: var(--bh-accent-brand-hover);
}

/* Form status feedback */
.form-status {
  font-size: var(--text-sm);
  font-weight: 500;
  line-height: 1.55;
  padding: var(--sp-3) var(--sp-4);
  border-radius: var(--radius-sm);
  display: none;
}

.form-status:not(:empty) {
  display: block;
}

.form-status[data-state="success"] {
  background: rgba(190, 136, 49, 0.10);
  color: var(--bh-accent-brand-hover);
  border: 1px solid var(--bh-border-accent);
}

.form-status[data-state="error"] {
  background: rgba(217, 93, 99, 0.10);
  color: #ff8c93;
  border: 1px solid rgba(217, 93, 99, 0.25);
}

/* ── Roadmap ── */
.roadmap {
  display: grid;
  gap: var(--sp-4);
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.roadmap > div {
  background: var(--card-bg);
  border-radius: var(--radius-md);
  padding: var(--sp-6);
  border: 1px solid var(--card-border);
  box-shadow: var(--shadow-xs);
  position: relative;
  overflow: hidden;
  transition: transform var(--motion-base), box-shadow var(--motion-base), border-color var(--motion-base);
}

.roadmap > div::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--bh-accent-brand) 0%, rgba(190, 136, 49, 0.4) 100%);
}

.roadmap > div:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md), var(--glow-accent);
  border-color: var(--bh-border-strong);
}

.roadmap > div h3 {
  font-size: var(--text-sm);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--bh-accent-brand);
  margin-bottom: var(--sp-2);
}

.roadmap > div p {
  font-size: var(--text-base);
  color: var(--color-text-soft);
  line-height: 1.68;
  margin: 0;
}

/* ── Footer ── */
.site-footer {
  padding: var(--sp-8);
  border-top: 1px solid var(--bh-border-subtle);
  background: rgba(5, 5, 5, 0.5);
}

.footer-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--sp-4);
  font-size: var(--text-sm);
  color: var(--color-text-soft);
}

.footer-brand {
  flex-shrink: 0;
}

.footer-social {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
}

.social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  color: var(--color-text-soft);
  border: 1px solid transparent;
  transition:
    color var(--motion-fast),
    background var(--motion-fast),
    border-color var(--motion-fast),
    transform var(--motion-base);
}

.social-link:hover {
  color: var(--bh-accent-brand);
  background: var(--bh-accent-brand-soft);
  border-color: var(--bh-border-accent);
  transform: translateY(-2px);
}

.social-link:active {
  transform: translateY(0);
}

.footer-links {
  display: flex;
  gap: var(--sp-4);
}

.footer-links a {
  transition: color var(--motion-fast);
}

.footer-links a:hover {
  color: var(--color-text-bright);
}

/* ── Responsive — tablet hamburger ── */
@media (max-width: 860px) {
  .nav-links {
    position: absolute;
    top: 68px;
    right: var(--sp-6);
    left: var(--sp-6);
    background: rgba(5, 5, 5, 0.96);
    border: 1px solid var(--bh-border-default);
    border-radius: var(--radius-md);
    flex-direction: column;
    align-items: flex-start;
    padding: var(--sp-4) var(--sp-6);
    gap: var(--sp-4);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-8px);
    transition: opacity var(--motion-base), transform var(--motion-base);
  }

  .nav-toggle:checked ~ .nav-links {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }

  .nav-toggle-label {
    display: inline-flex;
  }
}

/* ── Responsive — mobile ── */
@media (max-width: 720px) {
  .nav {
    padding: var(--sp-4) var(--sp-6);
  }

  main {
    padding: var(--sp-6) var(--sp-6) var(--sp-16);
  }

  .hero {
    padding-top: var(--sp-8);
    gap: var(--sp-8);
  }

  .hero-card {
    order: -1;
  }

  .section {
    padding-top: var(--sp-16);
  }

  .survey,
  .waitlist {
    margin-inline: 0;
    padding-inline: 0;
    border-radius: 0;
    background: none;
  }

  .survey-form,
  .waitlist-form {
    padding: var(--sp-6);
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--sp-4);
  }

  .footer-social {
    order: -1;
  }
}