/* Gainplate landing — matte black + accent orange.
   Mobile-first. No framework. No build step.
   Design tokens loosely track the iOS app's GPColor / GPFont palette. */

:root {
  --bg: #0a0a0a;
  --bg-elev: #141414;
  --bg-elev-2: #1c1c1c;
  --fg: #f5f5f5;
  --fg-dim: #a8a8a8;
  --fg-dimmer: #6a6a6a;
  --accent: #ff6a00;
  --accent-hover: #ff824d;
  --border: rgba(255, 255, 255, 0.08);
  --radius: 14px;
  --radius-lg: 22px;
  --font-sans: ui-rounded, "SF Pro Rounded", -apple-system,
    BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  --font-serif: ui-serif, "New York", Georgia, serif;
  --maxw: 1120px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-sans);
  font-weight: 500;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  min-height: 100vh;
  min-height: 100dvh;
  overflow-x: hidden;
}

a {
  color: var(--fg);
  text-decoration: none;
}

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

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

/* --- Nav ---------------------------------------------------------------- */

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 20px;
  max-width: var(--maxw);
  margin: 0 auto;
  gap: 12px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 18px;
  letter-spacing: -0.01em;
}

.logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: var(--accent);
  color: var(--bg);
  font-weight: 900;
  font-size: 18px;
  font-family: var(--font-sans);
}

.logo-word {
  color: var(--fg);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  padding: 10px 14px;
  border-radius: 999px;
  color: var(--fg-dim);
  font-weight: 600;
  font-size: 15px;
  min-height: 44px;
}

.nav-link:hover {
  color: var(--fg);
}

/* --- Buttons ------------------------------------------------------------ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 18px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 15px;
  min-height: 44px;
  border: 1px solid transparent;
  transition: background 120ms ease, color 120ms ease, border-color 120ms ease,
    transform 80ms ease;
  cursor: pointer;
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background: var(--accent);
  color: #0a0a0a;
}

.btn-primary:hover {
  background: var(--accent-hover);
  color: #0a0a0a;
}

.btn-secondary {
  background: transparent;
  color: var(--fg);
  border-color: var(--border);
}

.btn-secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.btn-lg {
  padding: 16px 24px;
  font-size: 17px;
  min-height: 52px;
}

/* --- Hero --------------------------------------------------------------- */

.hero {
  padding: 48px 20px 32px;
  max-width: var(--maxw);
  margin: 0 auto;
}

.hero-narrow {
  padding-top: 80px;
  padding-bottom: 80px;
  max-width: 780px;
}

.hero-inner {
  max-width: 780px;
}

.hero-title {
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(40px, 8vw, 72px);
  line-height: 1.02;
  letter-spacing: -0.03em;
  margin: 0 0 20px;
}

.hero-sub {
  font-size: clamp(17px, 2.2vw, 20px);
  line-height: 1.45;
  color: var(--fg-dim);
  max-width: 640px;
  margin: 0 0 28px;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: 8px;
}

.hero-note {
  margin-top: 14px;
  color: var(--fg-dimmer);
  font-size: 13px;
  letter-spacing: 0.02em;
}

.app-store-badge {
  display: inline-flex;
  border-radius: 10px;
  overflow: hidden;
  transition: transform 120ms ease;
}

.app-store-badge:hover {
  transform: translateY(-1px);
}

/* --- Screens ------------------------------------------------------------ */

.screens {
  padding: 24px 20px 48px;
  max-width: var(--maxw);
  margin: 0 auto;
}

.screens-inner {
  display: grid;
  gap: 20px;
  grid-template-columns: 1fr;
  justify-items: center;
}

.phone {
  width: min(100%, 260px);
  aspect-ratio: 9 / 19.5;
  border-radius: 40px;
  background: linear-gradient(180deg, #1a1a1a, #0f0f0f);
  padding: 12px;
  border: 1px solid var(--border);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.55);
  position: relative;
}

.phone-screen {
  width: 100%;
  height: 100%;
  border-radius: 30px;
  background: radial-gradient(120% 80% at 50% 0%, #1e1300, #0a0a0a 60%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 22px;
  overflow: hidden;
}

.ph-label {
  font-size: 32px;
  font-weight: 900;
  letter-spacing: -0.02em;
  color: var(--accent);
}

.ph-meta {
  margin-top: 6px;
  font-size: 14px;
  color: var(--fg-dim);
}

@media (min-width: 720px) {
  .screens-inner {
    grid-template-columns: repeat(3, 1fr);
    align-items: end;
    gap: 32px;
  }

  .phone-center {
    transform: translateY(-24px) scale(1.06);
  }
}

/* --- Sections ----------------------------------------------------------- */

.section-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 64px 20px;
}

.section-title {
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(28px, 4.5vw, 42px);
  letter-spacing: -0.02em;
  margin: 0 0 36px;
}

.how {
  background: var(--bg-elev);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.how-grid {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 20px;
  grid-template-columns: 1fr;
  counter-reset: none;
}

@media (min-width: 820px) {
  .how-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
  }
}

.how-step {
  background: var(--bg-elev-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
}

.how-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: rgba(255, 106, 0, 0.14);
  color: var(--accent);
  font-weight: 900;
  font-size: 18px;
  margin-bottom: 16px;
}

.how-step h3 {
  margin: 0 0 8px;
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.how-step p {
  margin: 0;
  color: var(--fg-dim);
  font-size: 15px;
  line-height: 1.55;
}

.retailers-copy {
  max-width: 700px;
  color: var(--fg-dim);
  font-size: 17px;
  line-height: 1.55;
  margin: 0 0 16px;
}

.retailers-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

/* --- Footer ------------------------------------------------------------- */

.footer {
  border-top: 1px solid var(--border);
  padding: 32px 20px 48px;
  color: var(--fg-dim);
}

.footer-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  justify-content: space-between;
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  color: var(--fg);
}

.footer-links {
  display: flex;
  gap: 20px;
}

.footer-links a {
  color: var(--fg-dim);
  font-size: 14px;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}

.footer-copy {
  font-size: 13px;
  color: var(--fg-dimmer);
}

@media (max-width: 520px) {
  .footer-inner {
    justify-content: flex-start;
  }
}

/* --- Legal pages (privacy, terms) --------------------------------------- */

.legal {
  max-width: 780px;
  margin: 0 auto;
  padding: 48px 20px 64px;
}

.legal h1 {
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(32px, 5.5vw, 48px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin: 0 0 24px;
}

.legal .legal-meta {
  color: var(--fg-dim);
  font-size: 14px;
  margin: 0 0 32px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border);
}

.legal .legal-meta p {
  margin: 0 0 4px;
}

.legal h2 {
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: clamp(22px, 3vw, 26px);
  letter-spacing: -0.01em;
  margin: 40px 0 14px;
  color: var(--fg);
}

.legal h3 {
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 18px;
  margin: 28px 0 10px;
  color: var(--fg);
}

.legal p {
  font-size: 16px;
  line-height: 1.65;
  color: var(--fg-dim);
  margin: 0 0 16px;
}

.legal p strong,
.legal li strong {
  color: var(--fg);
  font-weight: 700;
}

.legal ul,
.legal ol {
  padding-left: 22px;
  margin: 0 0 16px;
}

.legal li {
  font-size: 16px;
  line-height: 1.65;
  color: var(--fg-dim);
  margin: 0 0 10px;
}

.legal a {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

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

.legal hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 32px 0;
}

.legal blockquote {
  margin: 16px 0;
  padding: 12px 18px;
  border-left: 3px solid var(--accent);
  background: var(--bg-elev);
  border-radius: 0 var(--radius) var(--radius) 0;
  color: var(--fg);
  font-weight: 600;
}

.legal blockquote p {
  margin: 0;
  color: var(--fg);
}

.legal code {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.9em;
  background: var(--bg-elev-2);
  padding: 2px 6px;
  border-radius: 4px;
  color: var(--fg);
}

/* --- Reduced motion ---------------------------------------------------- */

@media (prefers-reduced-motion: reduce) {
  * {
    animation: none !important;
    transition: none !important;
  }
}