/* ==========================================================================
   FLRYFY — Milestone 1 Holding Page
   Core stylesheet: tokens, reset, typography, layout, components
   ========================================================================== */

/* ---- Font faces (self-hosted, subset to weights in use) ---- */
@font-face {
  font-family: 'Space Grotesk';
  src: url('/assets/fonts/space-grotesk-latin-500-normal.woff2') format('woff2');
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Space Grotesk';
  src: url('/assets/fonts/space-grotesk-latin-600-normal.woff2') format('woff2');
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Space Grotesk';
  src: url('/assets/fonts/space-grotesk-latin-700-normal.woff2') format('woff2');
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Manrope';
  src: url('/assets/fonts/manrope-latin-400-normal.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Manrope';
  src: url('/assets/fonts/manrope-latin-500-normal.woff2') format('woff2');
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Manrope';
  src: url('/assets/fonts/manrope-latin-600-normal.woff2') format('woff2');
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'IBM Plex Mono';
  src: url('/assets/fonts/ibm-plex-mono-latin-400-normal.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'IBM Plex Mono';
  src: url('/assets/fonts/ibm-plex-mono-latin-500-normal.woff2') format('woff2');
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}

/* ---- Design tokens ---- */
:root {
  /* colour */
  --bg: #0A0A0C;
  --bg-elevated: #101014;
  --surface-glass: rgba(255, 255, 255, 0.04);
  --surface-glass-border: rgba(255, 255, 255, 0.09);
  --purple: #8B2FF8;
  --cyan: #22D3EE;
  --blue: #2563EB;
  --gold: #C9A65D;
  --gold-bright: #E4C583;
  --text-primary: #F5F5F7;
  --text-secondary: #9A9AA3;
  --text-tertiary: #5C5C64;
  --border-hair: rgba(255, 255, 255, 0.08);

  /* gradients */
  --gradient-brand: linear-gradient(90deg, var(--purple), var(--blue), var(--cyan));
  --gradient-text: linear-gradient(90deg, #ffffff 0%, #e9e9ee 100%);

  /* type */
  --font-display: 'Space Grotesk', system-ui, sans-serif;
  --font-body: 'Manrope', system-ui, sans-serif;
  --font-mono: 'IBM Plex Mono', ui-monospace, monospace;

  /* spacing rhythm */
  --space-1: clamp(0.5rem, 0.45rem + 0.25vw, 0.75rem);
  --space-2: clamp(1rem, 0.9rem + 0.5vw, 1.5rem);
  --space-3: clamp(1.75rem, 1.5rem + 1.25vw, 2.75rem);
  --space-4: clamp(2.5rem, 2rem + 2.5vw, 4.5rem);
  --space-5: clamp(4rem, 3rem + 5vw, 8rem);

  /* motion */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --dur-fast: 180ms;
  --dur-med: 420ms;
}

/* ---- Reset ---- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body, h1, h2, h3, p, ul, figure { margin: 0; }
ul { padding: 0; list-style: none; }
img { max-width: 100%; display: block; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
input { font: inherit; color: inherit; }
a { color: inherit; text-decoration: none; }

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

body {
  background: var(--bg);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.5;
  min-height: 100vh;   /* fallback for browsers without svh support */
  min-height: 100svh;
  overflow-x: hidden;
}

/* ---- Accessibility 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;
}

.skip-link {
  position: absolute;
  top: -3rem;
  left: 1rem;
  z-index: 100;
  background: var(--gold);
  color: #14110a;
  padding: 0.6rem 1rem;
  border-radius: 6px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  transition: top var(--dur-fast) var(--ease-out);
}
.skip-link:focus {
  top: 1rem;
}

:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
  border-radius: 2px;
}

/* ---- Ambient particle field (fixed, full-bleed, behind everything) ---- */
.field {
  position: fixed;
  inset: 0;
  z-index: -1;
  background: var(--bg);
}
#particle-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}

/* ---- Header ---- */
.site-header {
  position: relative;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-2) var(--space-3);
}

.brand-mark {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  opacity: 0.92;
  transition: opacity var(--dur-fast) var(--ease-out);
}
.brand-mark:hover { opacity: 1; }
.brand-mark img { width: 28px; height: 28px; }
.brand-name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.16em;
}

.social-row {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.social-row .icon {
  width: 17px;
  height: 17px;
  color: var(--text-secondary);
  transition: color var(--dur-fast) var(--ease-out), transform var(--dur-fast) var(--ease-out);
}
.social-row a:hover .icon,
.social-row a:focus-visible .icon {
  color: var(--gold-bright);
  transform: translateY(-2px);
}

/* ---- Hero ---- */
.hero {
  position: relative;
  z-index: 5;
  min-height: 100vh;   /* fallback for browsers without svh support */
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-4) var(--space-3);
}

.hero-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  max-width: 640px;
}

.hero-mark {
  width: clamp(64px, 8vw, 96px);
  height: auto;
  margin-bottom: var(--space-3);
}

.hero-word {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.75rem, 2.1rem + 3.2vw, 5.5rem);
  letter-spacing: 0.05em;
  line-height: 1;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-divider {
  width: 84px;
  height: 2px;
  margin: var(--space-3) 0 var(--space-2);
  background: var(--gradient-brand);
  border-radius: 2px;
}

.hero-tagline {
  font-family: var(--font-mono);
  font-size: clamp(0.75rem, 0.7rem + 0.2vw, 0.9rem);
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-bottom: var(--space-4);
}

.pillars {
  display: flex;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  margin-bottom: var(--space-4);
}
.pillars li:not(:last-child)::after {
  content: '';
  display: inline-block;
  width: 1px;
  height: 0.9em;
  margin-left: var(--space-2);
  background: var(--border-hair);
  vertical-align: middle;
}
.pillars li {
  display: flex;
  align-items: center;
}
/* Plain margin for spacing rather than flex `gap` — avoids any ambiguity
   across engines instead of feature-detecting it. */
.pillars li:not(:first-child) {
  margin-left: var(--space-2);
}

/* ---- Primary button ---- */
.btn-primary {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 1rem 2.25rem;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  color: #14110a;
  background: linear-gradient(135deg, var(--gold-bright), var(--gold));
  border-radius: 999px;
  overflow: hidden;
  isolation: isolate;
  transition: transform var(--dur-fast) var(--ease-out), box-shadow var(--dur-fast) var(--ease-out);
  box-shadow: 0 0 0 0 rgba(201, 166, 93, 0);
}
.btn-primary::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(135deg, #fff, var(--gold-bright));
  opacity: 0;
  transition: opacity var(--dur-med) var(--ease-out);
}
.btn-primary:hover,
.btn-primary:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px -8px rgba(201, 166, 93, 0.45);
}
.btn-primary:hover::before,
.btn-primary:focus-visible::before {
  opacity: 1;
}
.btn-primary span { position: relative; z-index: 1; }

.btn-spinner {
  display: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  border: 2px solid rgba(20, 17, 10, 0.3);
  border-top-color: #14110a;
  position: relative;
  z-index: 1;
}
.waitlist-form.is-loading .btn-spinner {
  display: inline-block;
  animation: spin 700ms linear infinite;
}
.waitlist-form.is-loading .btn-label { opacity: 0.6; }
.waitlist-form.is-loading button { pointer-events: none; }

.scroll-cue {
  position: absolute;
  bottom: var(--space-3);
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 32px;
  border: 1.5px solid var(--border-hair);
  border-radius: 12px;
}
.scroll-cue span {
  position: absolute;
  top: 6px;
  left: 50%;
  transform: translateX(-50%);
  width: 3px;
  height: 6px;
  border-radius: 2px;
  background: var(--gold);
  animation: scroll-cue 1.8s var(--ease-out) infinite;
}

/* ---- Waitlist section ---- */
.waitlist {
  position: relative;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-5) var(--space-3);
}

.waitlist-card {
  width: 100%;
  max-width: 480px;
  text-align: center;
  padding: var(--space-4) var(--space-3);
  border-radius: 20px;
  background: var(--surface-glass);
  border: 1px solid var(--surface-glass-border);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: var(--space-2);
}

.waitlist-card h2 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.6rem, 1.4rem + 1vw, 2.1rem);
  margin-bottom: var(--space-2);
}

.waitlist-copy {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: var(--space-3);
}

.field-row {
  display: flex;
  gap: 0.6rem;
}

#email {
  flex: 1;
  min-width: 0;
  padding: 0.9rem 1.1rem;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--surface-glass-border);
  border-radius: 999px;
  color: var(--text-primary);
  font-size: 0.9rem;
  transition: border-color var(--dur-fast) var(--ease-out), background var(--dur-fast) var(--ease-out);
}
#email::placeholder { color: var(--text-tertiary); }
#email:focus {
  border-color: var(--gold);
  background: rgba(255, 255, 255, 0.05);
  outline: none;
}

.hp-field {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.form-status {
  margin-top: var(--space-2);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.02em;
  min-height: 1.2em;
  color: var(--text-secondary);
}
.form-status.is-success { color: #6EE7B7; }
.form-status.is-error { color: #F87171; }

/* ---- Footer ---- */
.site-footer {
  position: relative;
  z-index: 5;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-3) var(--space-3);
  border-top: 1px solid var(--border-hair);
}
.footer-mark img { width: 22px; height: 22px; opacity: 0.7; }

.legal-row {
  display: flex;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  color: var(--text-tertiary);
}
.legal-row a { transition: color var(--dur-fast) var(--ease-out); }
.legal-row a:hover, .legal-row a:focus-visible { color: var(--text-secondary); }

.copyright {
  font-size: 0.72rem;
  color: var(--text-tertiary);
}