/* Piertta — Coming Soon
   Design tokens live here. Change brand values in :root only. */

:root {
  /* Colors */
  --prtta-color-bg: #0e0d0b;
  --prtta-color-surface: #16140f;
  --prtta-color-text: #f4efe6;
  --prtta-color-muted: #a49c8c;
  --prtta-color-accent: #c9a86a;
  --prtta-color-line: rgba(244, 239, 230, 0.14);

  /* Typography */
  --prtta-font-display: "Cormorant Garamond", Georgia, "Times New Roman", serif;
  --prtta-font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  /* Spacing */
  --prtta-space-sm: 0.75rem;
  --prtta-space-md: 1.5rem;
  --prtta-space-lg: 3rem;
  --prtta-space-xl: 5rem;

  /* Layout */
  --prtta-max-width: 1440px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

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

.prtta-body {
  margin: 0;
  min-height: 100vh;
  min-height: 100svh;
  color: var(--prtta-color-text);
  background-color: var(--prtta-color-bg);
  background-image:
    radial-gradient(120% 80% at 50% -10%, rgba(201, 168, 106, 0.12), transparent 60%),
    radial-gradient(100% 60% at 50% 120%, rgba(201, 168, 106, 0.06), transparent 55%);
  font-family: var(--prtta-font-body);
  font-weight: 300;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

.prtta-shell {
  display: grid;
  grid-template-rows: auto 1fr auto;
  min-height: 100vh;
  min-height: 100svh;
  max-width: var(--prtta-max-width);
  margin: 0 auto;
  padding: var(--prtta-space-lg) var(--prtta-space-lg) var(--prtta-space-md);
  text-align: center;
}

/* Header / wordmark */
.prtta-header {
  animation: prtta-fade-in 1s ease both;
}

.prtta-brand {
  display: inline-block;
  text-decoration: none;
}

.prtta-logo {
  display: block;
  width: clamp(200px, 26vw, 300px);
  height: auto;
  /* Logo art is black on transparent; invert to render cream on the dark theme */
  filter: invert(1) sepia(0.12) saturate(0.7) brightness(1.02);
}

/* Main */
.prtta-main {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--prtta-space-md);
  padding: var(--prtta-space-xl) 0;
  animation: prtta-fade-in 1.4s ease 0.15s both;
}

.prtta-eyebrow {
  margin: 0;
  font-size: 0.8rem;
  font-weight: 400;
  letter-spacing: 0.42em;
  text-transform: uppercase;
  color: var(--prtta-color-accent);
}

.prtta-headline {
  margin: 0;
  font-family: var(--prtta-font-display);
  font-weight: 500;
  font-size: clamp(3.25rem, 12vw, 8rem);
  line-height: 1.02;
  letter-spacing: 0.02em;
}

.prtta-subhead {
  max-width: 46ch;
  margin: 0 auto;
  font-size: 1.05rem;
  color: var(--prtta-color-muted);
}

/* Footer */
.prtta-footer {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--prtta-space-md);
  padding-top: var(--prtta-space-md);
  border-top: 1px solid var(--prtta-color-line);
  animation: prtta-fade-in 1.6s ease 0.3s both;
}

.prtta-social {
  display: flex;
  gap: var(--prtta-space-md);
}

.prtta-social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  color: var(--prtta-color-muted);
  border: 1px solid var(--prtta-color-line);
  transition: color 0.25s ease, border-color 0.25s ease, transform 0.25s ease;
}

.prtta-social-link:hover {
  color: var(--prtta-color-accent);
  border-color: var(--prtta-color-accent);
  transform: translateY(-2px);
}

.prtta-copyright {
  margin: 0;
  font-size: 0.78rem;
  letter-spacing: 0.05em;
  color: var(--prtta-color-muted);
}

/* Accessibility: visible focus */
a:focus-visible {
  outline: 2px solid var(--prtta-color-accent);
  outline-offset: 4px;
  border-radius: 2px;
}

@keyframes prtta-fade-in {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Tablet */
@media (max-width: 768px) {
  .prtta-shell {
    padding: var(--prtta-space-md) var(--prtta-space-md) var(--prtta-space-md);
  }

  .prtta-main {
    padding: var(--prtta-space-lg) 0;
  }

  .prtta-brand {
    font-size: 1.5rem;
    letter-spacing: 0.24em;
  }
}

/* Mobile */
@media (max-width: 600px) {
  .prtta-eyebrow {
    font-size: 0.72rem;
    letter-spacing: 0.34em;
  }

  .prtta-subhead {
    font-size: 0.98rem;
  }
}

/* Respect reduced motion */
@media (prefers-reduced-motion: reduce) {
  .prtta-header,
  .prtta-main,
  .prtta-footer {
    animation: none;
  }

  .prtta-social-link {
    transition: none;
  }
}