/**
 * Synthetic You — Design tokens (Introspective Minimalism).
 * Use across Landing, Lab, Synthesis, Paywall, Success (and future Mentor, Vault).
 */
@import url("https://fonts.googleapis.com/css2?family=DM+Sans:ital,opsz,wght@0,9..40,400;0,9..40,600;1,9..40,400&family=Playfair+Display:ital,wght@0,400;0,600;0,700&display=swap");

:root {
  /* Background: deep navy → charcoal mesh feel; base for fallback */
  --bg: #0d0e14;
  --bg-mesh-start: #12162a;
  --bg-mesh-end: #16181f;
  --surface: #1a1a1f;
  --text: #e8e6e3;
  --muted: #a09c9b;
  --accent: #c9a227;
  --accent-hover: #e0b82e;
  --accent-glow: rgba(201, 162, 39, 0.35);
  --border: #2d2d33;
  --font-heading: "Playfair Display", Georgia, serif;
  --font-body: "DM Sans", system-ui, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

/* Atmospheric mesh gradient (static; optional animation via .page-wrap) */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse 90% 60% at 50% -10%, var(--bg-mesh-start) 0%, transparent 55%),
    radial-gradient(ellipse 70% 50% at 100% 80%, var(--bg-mesh-end) 0%, transparent 50%),
    linear-gradient(180deg, var(--bg-mesh-end) 0%, var(--bg) 100%);
  pointer-events: none;
  z-index: -1;
}

h1, h2 {
  font-family: var(--font-heading);
  font-weight: 600;
  letter-spacing: -0.02em;
}

h1 { font-weight: 700; }

/* Buttons: neon gold glow on focus/hover */
.btn {
  transition: background 0.15s, box-shadow 0.2s;
}
.btn:hover {
  box-shadow: 0 0 20px var(--accent-glow);
}
.btn:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px var(--bg), 0 0 24px var(--accent-glow);
}

/* Persistent nav */
.sy-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 0.75rem 1.25rem;
  background: rgba(13, 14, 20, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.sy-nav-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 72rem;
  margin: 0 auto;
}
.sy-nav-logo {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.sy-nav-logo img {
  width: 28px;
  height: 28px;
  border-radius: 6px;
  display: block;
  flex-shrink: 0;
}
.sy-nav-logo:hover { color: var(--accent); }
.sy-nav-link {
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--muted);
  text-decoration: none;
}
.sy-nav-link:hover { color: var(--accent); }

/* Interaction states */
.sy-loading {
  text-align: center;
  padding: 2rem;
  color: var(--muted);
}
.sy-loading-spinner {
  width: 36px;
  height: 36px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: sy-spin 0.8s linear infinite;
  margin: 0 auto 1rem;
}
@keyframes sy-spin { to { transform: rotate(360deg); } }

.sy-error-card {
  background: var(--surface);
  border: 1px solid #c75c5c;
  border-radius: 12px;
  padding: 1.5rem;
  text-align: center;
}
.sy-error-card .sy-error-icon {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}
.sy-error-card p {
  color: var(--text);
  margin-bottom: 0.75rem;
  font-size: 0.95rem;
}
.sy-error-card .sy-error-detail {
  color: var(--muted);
  font-size: 0.85rem;
  margin-bottom: 1rem;
}
.sy-error-card .btn {
  display: inline-block;
  padding: 0.6rem 1.25rem;
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--bg);
  background: var(--accent);
  border: none;
  border-radius: 8px;
  cursor: pointer;
}

.sy-empty {
  text-align: center;
  padding: 2.5rem 1.5rem;
  color: var(--muted);
}
.sy-empty-icon {
  font-size: 2.5rem;
  margin-bottom: 0.75rem;
  opacity: 0.5;
}
.sy-empty h3 {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  color: var(--text);
  margin-bottom: 0.5rem;
}
.sy-empty p {
  font-size: 0.9rem;
  margin-bottom: 1rem;
  max-width: 320px;
  margin-left: auto;
  margin-right: auto;
}
.sy-empty .btn {
  display: inline-block;
  padding: 0.6rem 1.25rem;
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--bg);
  background: var(--accent);
  border: none;
  border-radius: 8px;
  cursor: pointer;
  text-decoration: none;
}

/* Focus indicators for dark backgrounds */
input[type="radio"]:focus-visible + label,
.tool-card:focus-visible,
a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}