/* Serenbeam design system — shared primitives. Tokens live in tokens.css. */
@import "/tokens.css";

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: no-preference) { html { scroll-behavior: smooth; } }

body {
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  min-height: 100dvh;
}

a { color: var(--beam); }
::selection { background: rgba(211, 203, 122, .28); color: var(--beam-core); }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 4px;
}

.container { width: 100%; max-width: 1080px; margin-inline: auto; padding-inline: clamp(1.1rem, 4vw, 2rem); }

/* --- Buttons --- */
.btn {
  --btn-bg: transparent;
  --btn-fg: var(--ink);
  display: inline-flex; align-items: center; justify-content: center; gap: .5em;
  padding: .68em 1.25em;
  font: inherit; font-size: .9rem; font-weight: 560; line-height: 1;
  color: var(--btn-fg); background: var(--btn-bg);
  border: 1px solid transparent; border-radius: var(--r);
  cursor: pointer; text-decoration: none; white-space: nowrap;
  transition: transform var(--t-fast) var(--ease-out), background var(--t), border-color var(--t), box-shadow var(--t), opacity var(--t);
}
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn:not(:disabled):active { transform: translateY(1px) scale(.99); }

.btn-primary { --btn-bg: var(--accent); --btn-fg: #04101f; font-weight: 640; box-shadow: var(--beam-glow); }
.btn-primary:not(:disabled):hover { --btn-bg: var(--beam); transform: translateY(-1px); box-shadow: 0 0 46px rgba(211, 203, 122, .45); }

.btn-ghost { --btn-fg: var(--beam); border-color: var(--line-2); background: rgba(211, 203, 122, .05); }
.btn-ghost:not(:disabled):hover { background: rgba(211, 203, 122, .12); border-color: var(--accent); }

.btn-secondary { --btn-fg: var(--ink); border-color: rgba(232, 238, 246, .2); }
.btn-secondary:not(:disabled):hover { background: rgba(232, 238, 246, .07); border-color: rgba(232, 238, 246, .35); }

.btn-lg { padding: .85em 1.6em; font-size: 1rem; border-radius: var(--r-lg); }
.btn-block { width: 100%; }

/* --- Grain overlay (kills banding, adds texture) --- */
.grain::after {
  content: ""; position: absolute; inset: 0; pointer-events: none; z-index: 0;
  opacity: .04; mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* --- On-load reveal: transform-only so content is NEVER gated invisible
   (a screenshot or headless render mid-animation still shows everything). --- */
@media (prefers-reduced-motion: no-preference) {
  .js .reveal { animation: reveal .7s var(--ease-out) both; animation-delay: var(--d, 0ms); }
}
@keyframes reveal { from { transform: translateY(14px); } to { transform: none; } }