/*
  FareGate landing page styles.
  System font stack only — no web fonts, no CDN, zero dependencies.
  Transit / turnstile motif: high contrast, big confident type, "platform" signage feel.
  Full light/dark support via prefers-color-scheme.
*/

:root {
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica,
    Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji";

  --color-bg: #f7f7f5;
  --color-bg-alt: #ffffff;
  --color-text: #101214;
  --color-text-muted: #4a4f57;
  --color-accent: #d94f2b; /* turnstile amber-orange, signage-style */
  --color-accent-contrast: #ffffff;
  --color-border: #d8d8d3;
  --color-focus: #1560d4;

  --max-width: 1080px;
  --radius: 10px;
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2.5rem;
  --space-5: 4rem;
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-bg: #0b0e11;
    --color-bg-alt: #14171b;
    --color-text: #f3f4f5;
    --color-text-muted: #a9adb4;
    --color-accent: #ff7a45;
    --color-accent-contrast: #101214;
    --color-border: #262b31;
    --color-focus: #6ea8ff;
  }
}

* {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.5;
  font-size: 17px;
}

.wrap {
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: var(--space-3);
}

h1, h2, h3 {
  line-height: 1.15;
  letter-spacing: -0.01em;
}

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

/* Skip link */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--color-accent);
  color: var(--color-accent-contrast);
  padding: var(--space-1) var(--space-2);
  z-index: 100;
  border-radius: 0 0 var(--radius) 0;
}

.skip-link:focus {
  left: 0;
}

/* Focus visibility */
a:focus-visible,
button:focus-visible,
input:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 2px;
}

/* Header */
.site-header {
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  background: var(--color-bg);
  z-index: 10;
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: var(--space-2);
}

.wordmark {
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
}

.header-cta {
  text-decoration: none;
  font-weight: 600;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--space-1) var(--space-2);
}

/* Buttons */
.btn {
  display: inline-block;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 700;
  text-decoration: none;
  border-radius: var(--radius);
  padding: 0.85rem 1.5rem;
  border: none;
  cursor: pointer;
  text-align: center;
}

.btn-primary {
  background: var(--color-accent);
  color: var(--color-accent-contrast);
}

.btn-primary:hover {
  filter: brightness(1.05);
}

/* Hero */
.hero {
  padding-block: var(--space-5) var(--space-4);
  border-bottom: 1px solid var(--color-border);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
  align-items: center;
}

@media (min-width: 860px) {
  .hero-grid {
    grid-template-columns: 1.1fr 0.9fr;
  }
}

.hero-copy h1 {
  font-size: clamp(2.25rem, 5vw, 3.25rem);
  margin: 0 0 var(--space-3);
}

.hero-subhead {
  font-size: 1.15rem;
  color: var(--color-text-muted);
  max-width: 46ch;
}

.hero-actions {
  margin-top: var(--space-3);
}

.hero-microcopy {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  margin-top: var(--space-1);
}

/* Phone frame placeholder — filmable-motif demo slot (9:16) */
.phone-frame {
  justify-self: center;
  width: min(280px, 70vw);
  aspect-ratio: 9 / 16;
  border-radius: 32px;
  border: 3px solid var(--color-border);
  background: var(--color-bg-alt);
  padding: var(--space-2);
  display: flex;
  align-items: center;
}

.phone-frame-inner {
  width: 100%;
  height: 100%;
  border: 2px dashed var(--color-border);
  border-radius: 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: var(--space-2);
  padding: var(--space-2);
}

.phone-frame-label {
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.8rem;
  color: var(--color-accent);
}

.phone-frame-caption {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

/* Section rhythm */
section {
  padding-block: var(--space-5);
}

section > .wrap > h2 {
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  margin-bottom: var(--space-3);
}

.how-it-works {
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg-alt);
}

.steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--space-3);
  grid-template-columns: 1fr;
}

@media (min-width: 760px) {
  .steps {
    grid-template-columns: repeat(3, 1fr);
  }
}

.step {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--space-3);
  background: var(--color-bg);
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  background: var(--color-accent);
  color: var(--color-accent-contrast);
  font-weight: 800;
  margin-bottom: var(--space-2);
}

.step h3 {
  margin: 0 0 var(--space-1);
}

.step p {
  color: var(--color-text-muted);
  margin: 0;
}

/* Why cards */
.cards {
  display: grid;
  gap: var(--space-3);
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .cards {
    grid-template-columns: repeat(2, 1fr);
  }
}

.value-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--space-3);
}

.value-card h3 {
  margin: 0 0 var(--space-1);
  font-size: 1.05rem;
}

.value-card p {
  margin: 0;
  color: var(--color-text-muted);
}

/* Who it's for */
.who {
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg-alt);
}

.who p {
  max-width: 62ch;
  color: var(--color-text-muted);
  font-size: 1.05rem;
}

/* Waitlist */
.waitlist-lede {
  color: var(--color-text-muted);
  margin-top: 0;
}

.form-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  align-items: flex-end;
  max-width: 640px;
}

.form-row label {
  flex-basis: 100%;
  font-weight: 600;
  font-size: 0.9rem;
}

#email {
  flex: 1 1 260px;
  font-family: inherit;
  font-size: 1rem;
  padding: 0.75rem 1rem;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  background: var(--color-bg-alt);
  color: var(--color-text);
}

.form-status {
  margin-top: var(--space-2);
  font-size: 0.95rem;
  min-height: 1.4em;
}

.form-status[data-state="success"] {
  color: #1a7a3d;
}

.form-status[data-state="error"] {
  color: #b3261e;
}

.form-status[data-state="pending"],
.form-status[data-state="soon"] {
  color: var(--color-text-muted);
}

@media (prefers-color-scheme: dark) {
  .form-status[data-state="success"] {
    color: #5fd68a;
  }
  .form-status[data-state="error"] {
    color: #ff8a80;
  }
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--color-border);
  padding-block: var(--space-4);
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.prose {
  max-width: 48rem;
}

.prose h1 {
  margin: 0 0 1.25rem;
}

.prose h2 {
  margin: 2rem 0 0.5rem;
}

.prose p {
  max-width: 44rem;
}

.eyebrow {
  color: var(--color-accent);
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.site-footer p {
  margin: 0 0 var(--space-1);
}

.footer-links a {
  color: inherit;
  text-decoration: underline;
}