/* style.css — æternacy design tokens & components */

/* ============================================
   DESIGN TOKENS
   ============================================ */

:root {
  /* Typography */
  --font-display: 'Inter', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, sans-serif;

  /* Fluid Type Scale */
  --text-xs:   clamp(0.75rem,  0.7rem  + 0.25vw, 0.875rem);
  --text-sm:   clamp(0.875rem, 0.8rem  + 0.35vw, 1rem);
  --text-base: clamp(1rem,     0.9rem  + 0.5vw,  1.125rem);
  --text-lg:   clamp(1.125rem, 0.95rem + 0.85vw, 1.5rem);
  --text-xl:   clamp(1.5rem,   1rem    + 1.5vw,  2.25rem);
  --text-2xl:  clamp(2rem,     1.2rem  + 2.5vw,  3.5rem);
  --text-3xl:  clamp(2.5rem,   1rem    + 4vw,    5rem);
  --text-hero: clamp(3rem,     0.5rem  + 7vw,    8rem);

  /* 4px Spacing System */
  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-5:  1.25rem;
  --space-6:  1.5rem;
  --space-8:  2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Custom Dark Palette — æternacy */
  --color-bg:             #0A0C14;
  --color-surface:        #111318;
  --color-surface-2:      #181B23;
  --color-surface-offset: #1E2130;
  --color-text:           #E8E6E3;
  --color-text-muted:     #8A8A8E;
  --color-text-faint:     #5A5A5E;
  --color-divider:        rgba(255,255,255,0.08);
  --color-border:         rgba(255,255,255,0.12);

  /* Accent: Warm Maroon/Rose */
  --color-accent:         #8B2252;
  --color-accent-hover:   #A0344C;
  --color-accent-gradient: linear-gradient(135deg, #8B2252, #A0344C);

  /* Secondary Accent: Teal */
  --color-accent-teal:    #4F98A3;
  --color-accent-teal-hover: #5CABB7;

  /* Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;

  /* Transitions */
  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);
  --ease-golden: cubic-bezier(0.16, 1, 0.3, 1);

  /* Shadows (dark mode, cool-toned) */
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.4);
  --shadow-lg: 0 12px 32px rgba(0,0,0,0.5);

  /* Content widths */
  --content-narrow: 640px;
  --content-default: 960px;
  --content-wide: 1200px;
}

/* ============================================
   SKIP LINK
   ============================================ */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-4);
  background: var(--color-surface-2);
  color: var(--color-text);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-md);
  z-index: 100;
  font-size: var(--text-sm);
  transition: top var(--transition-interactive);
}
.skip-link:focus {
  top: var(--space-4);
}

/* ============================================
   HEADER
   ============================================ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  padding: var(--space-4) var(--space-6);
  background: rgba(10, 12, 20, 0.75);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.4s ease, background 0.4s ease;
}
.site-header.scrolled {
  border-bottom-color: var(--color-divider);
  background: rgba(10, 12, 20, 0.92);
}
.header-inner {
  max-width: var(--content-wide);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.logo-text {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 300;
  letter-spacing: 0.15em;
  color: var(--color-text);
  line-height: 1.2;
}
.logo-beta {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  font-weight: 500;
  margin-top: 0.1rem;
}

/* Buttons */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--color-accent-gradient);
  color: #fff;
  font-size: var(--text-sm);
  font-weight: 500;
  padding: var(--space-2) var(--space-6);
  border-radius: var(--radius-full);
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: opacity var(--transition-interactive),
              transform var(--transition-interactive),
              box-shadow var(--transition-interactive);
  white-space: nowrap;
}
.btn-primary:hover {
  opacity: 0.9;
  transform: translateY(-1px);
  box-shadow: 0 4px 20px rgba(139, 34, 82, 0.3);
}
.btn-primary:active {
  transform: translateY(0);
  box-shadow: none;
}
.btn-primary--lg {
  font-size: var(--text-base);
  padding: var(--space-3) var(--space-8);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
  position: relative;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-32) var(--space-6) var(--space-16);
  overflow: hidden;
}

/* Animated gradient glow — the ONE memorable design choice */
.hero-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 80vw;
  height: 80vh;
  max-width: 900px;
  max-height: 700px;
  background:
    radial-gradient(ellipse at 30% 40%, rgba(139, 34, 82, 0.12) 0%, transparent 60%),
    radial-gradient(ellipse at 70% 60%, rgba(79, 152, 163, 0.08) 0%, transparent 60%),
    radial-gradient(ellipse at 50% 50%, rgba(160, 52, 76, 0.06) 0%, transparent 70%);
  filter: blur(60px);
  animation: glowShift 12s ease-in-out infinite alternate;
  pointer-events: none;
  z-index: 0;
}

@keyframes glowShift {
  0% {
    transform: translate(-50%, -50%) scale(1) rotate(0deg);
    opacity: 0.8;
  }
  33% {
    transform: translate(-48%, -52%) scale(1.05) rotate(2deg);
    opacity: 1;
  }
  66% {
    transform: translate(-52%, -48%) scale(0.98) rotate(-1deg);
    opacity: 0.85;
  }
  100% {
    transform: translate(-50%, -50%) scale(1.02) rotate(1deg);
    opacity: 0.95;
  }
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 720px;
}
.hero-eyebrow {
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--space-6);
}
.hero-headline {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 300;
  color: var(--color-text);
  margin-bottom: var(--space-6);
  line-height: 1.1;
}
.hero-subline {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 580px;
  margin: 0 auto var(--space-8);
  line-height: 1.7;
}
.hero-cta {
  margin-bottom: var(--space-4);
}
.hero-trust {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  letter-spacing: 0.03em;
}
.hero-trust span {
  margin: 0 var(--space-2);
  opacity: 0.5;
}

/* ============================================
   SECTION SHARED
   ============================================ */
.section {
  padding: clamp(var(--space-16), 8vw, var(--space-32)) var(--space-6);
}
.section-inner {
  max-width: var(--content-wide);
  margin: 0 auto;
}
.section-label {
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--space-10);
  text-align: center;
}

/* ============================================
   VALUE PROPS
   ============================================ */
.values-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}
.value-card {
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  transition: border-color var(--transition-interactive),
              box-shadow var(--transition-interactive);
}
.value-card:hover {
  border-color: rgba(255,255,255,0.18);
  box-shadow: 0 0 30px rgba(79, 152, 163, 0.06);
}
.value-icon {
  width: 48px;
  height: 48px;
  margin-bottom: var(--space-5);
  color: var(--color-accent-teal);
}
.value-title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-3);
}
.value-desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ============================================
   WAITLIST SECTION
   ============================================ */
.waitlist {
  background: var(--color-surface);
}
.waitlist-card {
  max-width: 560px;
  margin: 0 auto;
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-10) var(--space-8);
  text-align: center;
}
.waitlist-headline {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 300;
  color: var(--color-text);
  margin-bottom: var(--space-3);
}
.waitlist-subline {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-8);
  max-width: 420px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.7;
}
.waitlist-form {
  display: flex;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}
.waitlist-input {
  flex: 1;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  padding: var(--space-3) var(--space-5);
  font-size: var(--text-sm);
  color: var(--color-text);
  outline: none;
  transition: border-color var(--transition-interactive),
              box-shadow var(--transition-interactive);
}
.waitlist-input::placeholder {
  color: var(--color-text-faint);
}
.waitlist-input:focus {
  border-color: var(--color-accent-teal);
  box-shadow: 0 0 0 3px rgba(79, 152, 163, 0.15);
}
.waitlist-privacy {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  margin-bottom: var(--space-4);
}
.waitlist-counter {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

/* Waitlist success state */
.waitlist-success {
  display: none;
  padding: var(--space-6) 0;
}
.waitlist-success.visible {
  display: block;
}
.waitlist-success-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto var(--space-4);
  color: var(--color-accent-teal);
}
.waitlist-success-text {
  font-size: var(--text-lg);
  font-weight: 300;
  color: var(--color-text);
  margin-bottom: var(--space-2);
}
.waitlist-success-sub {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

/* ============================================
   FOUNDER SECTION
   ============================================ */
.founder {
  overflow: hidden;
}
.founder-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-12);
  align-items: center;
}
.founder-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 16/9;
  background: var(--color-surface-2);
}
.founder-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.founder-label {
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--space-6);
}
.founder-quote {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 300;
  color: var(--color-text);
  line-height: 1.65;
  margin-bottom: var(--space-6);
  font-style: italic;
  position: relative;
}
.founder-quote::before {
  content: '\201C';
  position: absolute;
  left: -0.6em;
  top: -0.1em;
  font-size: 2em;
  color: var(--color-text-faint);
  font-style: normal;
}
.founder-attribution {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-4);
}
.founder-link {
  font-size: var(--text-sm);
  color: var(--color-accent-teal);
  transition: color var(--transition-interactive);
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}
.founder-link:hover {
  color: var(--color-accent-teal-hover);
}

/* ============================================
   FOOTER
   ============================================ */
.site-footer {
  background: var(--color-surface);
  border-top: 1px solid var(--color-divider);
  padding: var(--space-16) var(--space-6) var(--space-8);
}
.footer-inner {
  max-width: var(--content-wide);
  margin: 0 auto;
}
.footer-top {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: var(--space-8);
  padding-bottom: var(--space-10);
  border-bottom: 1px solid var(--color-divider);
  margin-bottom: var(--space-8);
}
.footer-brand .logo-text {
  font-size: var(--text-base);
  margin-bottom: var(--space-3);
}
.footer-tagline {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  max-width: 280px;
  line-height: 1.6;
}
.footer-col-title {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--space-4);
}
.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.footer-links a {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  transition: color var(--transition-interactive);
}
.footer-links a:hover {
  color: var(--color-text);
}

/* Trust badges */
.trust-badges {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-bottom: var(--space-8);
}
.trust-badge {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  padding: var(--space-1) var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  letter-spacing: 0.05em;
  font-weight: 500;
}

/* Footer bottom */
.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}
.footer-copyright {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}
.footer-social {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}
.footer-social a {
  color: var(--color-text-muted);
  transition: color var(--transition-interactive);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
}
.footer-social a:hover {
  color: var(--color-text);
}
.footer-attribution {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}
.footer-attribution a {
  color: var(--color-text-faint);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color var(--transition-interactive);
}
.footer-attribution a:hover {
  color: var(--color-text-muted);
}

/* ============================================
   SCROLL REVEAL ANIMATIONS
   ============================================ */
.reveal {
  opacity: 0;
  transition: opacity 0.8s var(--ease-golden);
}
.reveal.visible {
  opacity: 1;
}
/* Stagger children */
.reveal-stagger > * {
  opacity: 0;
  transition: opacity 0.6s var(--ease-golden);
}
.reveal-stagger.visible > *:nth-child(1) { transition-delay: 0ms; opacity: 1; }
.reveal-stagger.visible > *:nth-child(2) { transition-delay: 80ms; opacity: 1; }
.reveal-stagger.visible > *:nth-child(3) { transition-delay: 160ms; opacity: 1; }
.reveal-stagger.visible > *:nth-child(4) { transition-delay: 240ms; opacity: 1; }
.reveal-stagger.visible > *:nth-child(5) { transition-delay: 320ms; opacity: 1; }
.reveal-stagger.visible > *:nth-child(6) { transition-delay: 400ms; opacity: 1; }

/* ============================================
   RESPONSIVE — MOBILE
   ============================================ */
@media (max-width: 768px) {
  .site-header {
    padding: var(--space-3) var(--space-4);
  }
  .logo-text {
    font-size: var(--text-base);
  }
  .btn-primary {
    font-size: var(--text-xs);
    padding: var(--space-2) var(--space-4);
  }

  .hero {
    padding: var(--space-24) var(--space-4) var(--space-12);
    min-height: 100dvh;
  }
  .hero-headline {
    font-size: var(--text-2xl);
  }
  .hero-subline {
    font-size: var(--text-sm);
  }
  .hero-glow {
    width: 100vw;
    height: 60vh;
    filter: blur(40px);
  }

  .values-grid {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }
  .value-card {
    padding: var(--space-6);
  }

  .waitlist-form {
    flex-direction: column;
  }
  .waitlist-card {
    padding: var(--space-8) var(--space-5);
  }

  .founder-grid {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }
  .founder-quote::before {
    position: static;
    display: block;
    margin-bottom: var(--space-2);
  }

  .footer-top {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 480px) {
  .hero-headline {
    font-size: clamp(1.75rem, 1rem + 3vw, 2.5rem);
  }
  .hero-trust span {
    display: none;
  }
  .hero-trust {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
  }
}