/* ============ Design tokens ============ */
:root {
  --font-display: 'Cabinet Grotesk', 'Satoshi', -apple-system, sans-serif;
  --font-body: 'Satoshi', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;
  --space-9: 96px;
  --space-10: 128px;

  --text-xs: 0.8125rem;
  --text-sm: 0.9375rem;
  --text-base: 1.0625rem;
  --text-lg: 1.25rem;
  --text-xl: 1.5rem;
  --text-2xl: 2rem;
  --text-3xl: 2.75rem;
  --text-hero: 3.75rem;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-pill: 999px;

  --shadow-card: 0 1px 2px rgba(28, 27, 25, 0.04), 0 8px 24px -8px rgba(28, 27, 25, 0.08);
  --shadow-card-hover: 0 2px 4px rgba(28, 27, 25, 0.06), 0 16px 32px -12px rgba(28, 27, 25, 0.14);

  --ease: cubic-bezier(0.16, 1, 0.3, 1);

  /* Light mode palette — cool paper + deep teal (trust) + amber (leak/waste) */
  --color-bg: #F6F5F1;
  --color-surface: #FFFFFF;
  --color-surface-2: #FBFAF6;
  --color-border: #E3E0D6;
  --color-text: #1C1B19;
  --color-text-muted: #6B6862;
  --color-text-faint: #6F6B60;  /* was #A8A499 - 2.28:1, failed WCAG AA */
  --color-primary: #0F6E63;
  --color-primary-hover: #0B534A;
  --color-primary-tint: #E4F0EC;
  --color-leak: #C4551C;
  --color-leak-bg: #FBEEE3;
  --color-success: #437A22;
  --color-error: #A12C2C;
}

[data-theme='dark'] {
  --color-bg: #141513;
  --color-surface: #1B1C19;
  --color-surface-2: #201F1C;
  --color-border: #34332E;
  --color-text: #E7E4DC;
  --color-text-muted: #9C988F;
  --color-text-faint: #96928A;  /* was #6C6A62 - 3.4:1, failed WCAG AA */
  --color-primary: #3FA893;
  --color-primary-hover: #57BFA9;
  --color-primary-tint: #1D2E29;
  --color-leak: #E8874A;
  --color-leak-bg: #2E2117;
  --color-success: #6DAA45;
  --color-error: #D16A6A;
}

.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;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--color-bg);
  color: var(--color-text);
  font-size: var(--text-base);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  transition: background 0.3s var(--ease), color 0.3s var(--ease);
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
ul { list-style: none; }

.container {
  width: 100%;
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 var(--space-5);
}

section { padding: var(--space-9) 0; }

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.1;
}

h2 { font-size: var(--text-2xl); }
h3 { font-size: var(--text-lg); }

.eyebrow {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-primary);
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}

.eyebrow::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-primary);
}

.section-head {
  max-width: 640px;
  margin: 0 auto var(--space-7);
  text-align: center;
}

.section-head p {
  color: var(--color-text-muted);
  font-size: var(--text-lg);
  margin-top: var(--space-3);
}

/* ============ Header ============ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: color-mix(in srgb, var(--color-bg) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-lg);
}

.brand svg { width: 32px; height: 32px; }

.header-actions { display: flex; align-items: center; gap: var(--space-4); }

.theme-toggle {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  transition: background 0.2s var(--ease), color 0.2s var(--ease);
}
.theme-toggle:hover { background: var(--color-surface-2); color: var(--color-text); }
.theme-toggle svg { width: 18px; height: 18px; }
[data-theme='dark'] .theme-toggle .icon-moon { display: none; }
[data-theme='light'] .theme-toggle .icon-sun { display: none; }

/* ============ Buttons ============ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-weight: 600;
  font-size: var(--text-sm);
  padding: 13px 24px;
  border-radius: var(--radius-md);
  transition: transform 0.15s var(--ease), background 0.2s var(--ease), box-shadow 0.2s var(--ease);
  white-space: nowrap;
}
.btn-primary {
  background: var(--color-primary);
  color: #FFFFFF;
}
.btn-primary:hover { background: var(--color-primary-hover); transform: translateY(-1px); }
.btn-primary:active { transform: translateY(0); }
.btn-primary:disabled { opacity: 0.6; cursor: not-allowed; transform: none; }

/* ============ Hero ============ */
.hero {
  padding-top: calc(72px + var(--space-9));
  padding-bottom: var(--space-8);
  position: relative;
  overflow: hidden;
}

.hero-glow {
  position: absolute;
  top: -200px;
  right: -150px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--color-primary-tint) 0%, transparent 70%);
  opacity: 0.7;
  pointer-events: none;
  z-index: 0;
}

.hero .container {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--space-8);
  align-items: center;
}

.hero-copy h1 {
  font-size: var(--text-hero);
  margin-bottom: var(--space-5);
}

.hero-copy h1 .leak-word {
  color: var(--color-leak);
}

.hero-copy > p {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 520px;
  margin-bottom: var(--space-6);
}

.signup-form {
  display: flex;
  gap: var(--space-3);
  max-width: 460px;
  margin-bottom: var(--space-4);
}

.signup-form input {
  flex: 1;
  min-width: 0;
  padding: 13px 16px;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  color: var(--color-text);
  font-size: var(--text-sm);
  font-family: inherit;
  transition: border-color 0.2s var(--ease);
}
.signup-form input:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 2px; border-color: var(--color-primary); }
.signup-form input::placeholder { color: var(--color-text-faint); }

.form-status {
  min-height: 20px;
  font-size: var(--text-xs);
  font-weight: 500;
}
.form-status.success { color: var(--color-success); }
.form-status.error { color: var(--color-error); }

.trust-row {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  flex-wrap: wrap;
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

.trust-row span { display: inline-flex; align-items: center; gap: 6px; }
.trust-row svg { width: 14px; height: 14px; color: var(--color-primary); }

.waitlist-pill {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  padding: 6px 14px 6px 6px;
  font-size: var(--text-xs);
  font-weight: 600;
  margin-bottom: var(--space-5);
}
.waitlist-pill .dot-stack { display: flex; }
.waitlist-pill .dot-stack span {
  width: 20px; height: 20px; border-radius: 50%;
  background: var(--color-primary);
  border: 2px solid var(--color-surface);
  margin-left: -8px;
}
.waitlist-pill .dot-stack span:first-child { margin-left: 0; }

/* Hero visual: mock report card */
.hero-visual {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card-hover);
  padding: var(--space-6);
}
.hero-visual .visual-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: var(--space-5);
  padding-bottom: var(--space-5);
  border-bottom: 1px solid var(--color-border);
}
.hero-visual .visual-head .label { font-size: var(--text-xs); color: var(--color-text-muted); text-transform: uppercase; letter-spacing: 0.06em; }
.hero-visual .visual-head .amount { font-family: var(--font-display); font-size: var(--text-3xl); color: var(--color-leak); font-weight: 700; }

.app-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--color-border);
  font-size: var(--text-sm);
}
.app-row:last-child { border-bottom: none; }
.app-row .app-name { display: flex; align-items: center; gap: var(--space-3); font-weight: 500; }
.app-row .swatch { width: 10px; height: 10px; border-radius: 3px; flex-shrink: 0; }
.app-row .app-status {
  font-size: var(--text-xs);
  font-weight: 600;
  padding: 3px 10px;
  border-radius: var(--radius-pill);
}
.status-flag { background: var(--color-leak-bg); color: var(--color-leak); }
.status-ok { background: var(--color-primary-tint); color: var(--color-primary); }

/* ============ Logo bar ============ */
.logo-bar { padding: var(--space-6) 0; border-top: 1px solid var(--color-border); border-bottom: 1px solid var(--color-border); }
.logo-bar p { text-align: center; font-size: var(--text-xs); color: var(--color-text-faint); text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: var(--space-5); }
.logo-bar .platforms { display: flex; justify-content: center; gap: var(--space-8); flex-wrap: wrap; color: var(--color-text-faint); font-family: var(--font-display); font-weight: 700; font-size: var(--text-lg); }

/* ============ Problem cards ============ */
.problem-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
}
.stat-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-card);
  transition: box-shadow 0.2s var(--ease), transform 0.2s var(--ease);
}
.stat-card:hover { box-shadow: var(--shadow-card-hover); transform: translateY(-2px); }
.stat-card .stat-num {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  color: var(--color-leak);
  margin-bottom: var(--space-3);
}
.stat-card h3 { margin-bottom: var(--space-2); font-size: var(--text-base); }
.stat-card p { color: var(--color-text-muted); font-size: var(--text-sm); }
.stat-card cite { display: block; margin-top: var(--space-4); font-size: var(--text-xs); color: var(--color-text-faint); font-style: normal; }
.stat-card cite a { color: var(--color-text-muted); text-decoration: underline; text-decoration-color: var(--color-border); }

.quote-block {
  margin-top: var(--space-7);
  background: var(--color-surface-2);
  border-left: 3px solid var(--color-leak);
  border-radius: var(--radius-md);
  padding: var(--space-6) var(--space-7);
  font-size: var(--text-lg);
  font-style: italic;
  color: var(--color-text);
}
.quote-block footer { margin-top: var(--space-3); font-size: var(--text-sm); font-style: normal; color: var(--color-text-muted); }
.quote-block footer a { text-decoration: underline; }

/* ============ How it works ============ */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
  position: relative;
}
.step-card { position: relative; }
.step-num {
  width: 44px; height: 44px;
  border-radius: 50%;
  background: var(--color-primary-tint);
  color: var(--color-primary);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-lg);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: var(--space-4);
}
.step-card h3 { margin-bottom: var(--space-2); }
.step-card p { color: var(--color-text-muted); font-size: var(--text-sm); }

/* ============ Comparison ============ */
.compare-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-5);
}
.compare-card {
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  border: 1.5px solid var(--color-border);
}
.compare-card.old { background: var(--color-surface-2); }
.compare-card.new { background: var(--color-surface); border-color: var(--color-primary); box-shadow: var(--shadow-card-hover); position: relative; }
.compare-card.new::before {
  content: 'STACKLEAK';
  position: absolute;
  top: -12px; left: 24px;
  background: var(--color-primary);
  color: #fff;
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.06em;
  padding: 3px 12px;
  border-radius: var(--radius-pill);
}
.compare-card h3 { margin-bottom: var(--space-4); font-size: var(--text-base); color: var(--color-text-muted); }
.compare-card.new h3 { color: var(--color-primary); }
.compare-list li { display: flex; align-items: flex-start; gap: var(--space-3); padding: var(--space-2) 0; font-size: var(--text-sm); }
.compare-list svg { width: 16px; height: 16px; flex-shrink: 0; margin-top: 3px; }
.compare-card.old svg { color: var(--color-text-faint); }
.compare-card.new svg { color: var(--color-primary); }

/* ============ Pricing ============ */
.pricing-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-5); max-width: 720px; margin: 0 auto; }
.price-card {
  background: var(--color-surface);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-7) var(--space-6);
  text-align: center;
}
.price-card.featured { border-color: var(--color-primary); box-shadow: var(--shadow-card-hover); }
.price-card .plan-name { font-size: var(--text-sm); font-weight: 600; color: var(--color-text-muted); margin-bottom: var(--space-4); text-transform: uppercase; letter-spacing: 0.05em; }
.price-card .plan-price { font-family: var(--font-display); font-size: var(--text-3xl); margin-bottom: var(--space-1); }
.price-card .plan-price span { font-size: var(--text-sm); color: var(--color-text-muted); font-weight: 400; font-family: var(--font-body); }
.price-card .plan-sub { color: var(--color-text-muted); font-size: var(--text-sm); margin-bottom: var(--space-5); }
.price-card ul { text-align: left; margin-bottom: var(--space-6); }
.price-card li { display: flex; gap: var(--space-2); font-size: var(--text-sm); padding: var(--space-2) 0; color: var(--color-text-muted); }
.price-card li svg { width: 16px; height: 16px; color: var(--color-primary); flex-shrink: 0; margin-top: 2px; }
.price-card .btn { width: 100%; }
.btn-secondary { background: var(--color-surface-2); color: var(--color-text); border: 1.5px solid var(--color-border); }
.btn-secondary:hover { background: var(--color-border); }

/* ============ FAQ ============ */
.faq-list { max-width: 720px; margin: 0 auto; }
.faq-item { border-bottom: 1px solid var(--color-border); }
.faq-item summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-5) 0;
  font-weight: 600;
  font-size: var(--text-base);
  cursor: pointer;
  list-style: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary .plus { color: var(--color-primary); font-size: var(--text-xl); transition: transform 0.2s var(--ease); }
.faq-item[open] summary .plus { transform: rotate(45deg); }
.faq-item p { padding: 0 0 var(--space-5); color: var(--color-text-muted); font-size: var(--text-sm); max-width: 620px; }

/* ============ Final CTA ============ */
.final-cta {
  background: var(--color-surface-2);
  border-radius: var(--radius-lg);
  margin: 0 auto var(--space-9);
  max-width: 1140px;
  padding: var(--space-8);
  text-align: center;
}
.final-cta h2 { margin-bottom: var(--space-3); }
.final-cta > p { color: var(--color-text-muted); font-size: var(--text-lg); margin-bottom: var(--space-6); }
.final-cta .signup-form { margin: 0 auto var(--space-4); }

/* ============ Footer ============ */
.site-footer { padding: var(--space-6) 0 var(--space-8); border-top: 1px solid var(--color-border); }
.site-footer .container { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: var(--space-4); }
.site-footer .brand { font-size: var(--text-base); }
.site-footer .foot-sources { font-size: var(--text-xs); color: var(--color-text-faint); max-width: 640px; }
.site-footer .foot-sources a { text-decoration: underline; color: var(--color-text-muted); }

/* ============ Admin dashboard (hash route #admin) ============ */
.decision-badge {
  display: inline-block;
  padding: 6px 18px;
  border-radius: var(--radius-pill);
  font-weight: 700;
  font-size: var(--text-sm);
  letter-spacing: 0.03em;
}
.decision-go { background: var(--color-primary-tint); color: var(--color-primary); }
.decision-iterate { background: var(--color-leak-bg); color: var(--color-leak); }
.decision-kill { background: #F3DCDC; color: var(--color-error); }
[data-theme='dark'] .decision-kill { background: #3A1F1F; color: var(--color-error); }
#emailTable td { padding: var(--space-3) var(--space-4); font-size: var(--text-sm); border-bottom: 1px solid var(--color-border); }
#emailTable tr:last-child td { border-bottom: none; }

/* ============ Responsive ============ */
@media (max-width: 860px) {
  .hero .container { grid-template-columns: 1fr; }
  .hero-copy h1 { font-size: 2.5rem; }
  .problem-grid { grid-template-columns: 1fr; }
  .steps-grid { grid-template-columns: 1fr; }
  .compare-wrap { grid-template-columns: 1fr; }
  .pricing-grid { grid-template-columns: 1fr; }
  .signup-form { flex-direction: column; }
  .kpi-row { grid-template-columns: repeat(2, 1fr); }
  section { padding: var(--space-7) 0; }
  .site-footer .container { flex-direction: column; text-align: center; }
}


/* ---- Admin KPI grid (moved out of an inline style so media queries apply) ---- */
.kpi-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
  margin-bottom: var(--space-7);
}

/* ---- Respect a reduced-motion preference ---- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
  }
}