/* ============================================================
   Base — reset, typography, layout primitives, a11y
   ============================================================ */

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

* { margin: 0; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-h) + 16px);
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.65;
  color: var(--ink);
  background-color: var(--bg);
  background-image: var(--page-tint);
  background-attachment: fixed;
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body.no-scroll { overflow: hidden; }

::selection { background: var(--selection-bg); color: var(--ink); }

img, svg, video { display: block; max-width: 100%; }
img { height: auto; }

a { color: inherit; text-decoration: none; }

button, input, select, textarea {
  font: inherit;
  color: inherit;
}

h1, h2, h3, h4, h5 {
  font-family: var(--font-head);
  font-weight: 700;
  line-height: 1.14;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

h1 { font-size: var(--fs-hero); font-weight: 800; letter-spacing: -0.035em; }
h2 { font-size: var(--fs-h2); font-weight: 800; letter-spacing: -0.03em; }
h3 { font-size: var(--fs-h3); font-weight: 700; }

p { text-wrap: pretty; }

ul, ol { list-style: none; padding: 0; }

code, kbd, pre, samp { font-family: var(--font-mono); font-size: 0.92em; }

hr { border: 0; border-top: 1px solid var(--border-ink); margin: 1.5rem 0; }

/* --- Layout helpers --- */
.container {
  width: min(var(--container), 100% - var(--gutter) * 2);
  margin-inline: auto;
}

.section { padding-block: var(--section-y); position: relative; }
.section[id] { scroll-margin-top: calc(var(--nav-h) + 16px); }

.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1.25rem;
  margin-bottom: clamp(1.8rem, 4vw, 3rem);
}

.section-head .head-copy { max-width: 62ch; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: var(--fs-tiny);
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cobalt);
  margin-bottom: 0.85rem;
}

.eyebrow::before {
  content: "";
  width: 26px;
  height: 2px;
  border-radius: 2px;
  background: var(--grad-brand);
}

.lede {
  color: var(--muted);
  font-size: clamp(1rem, 1.5vw, 1.12rem);
  margin-top: 0.9rem;
}

.text-gradient {
  background: var(--grad-brand);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
}

.muted { color: var(--muted); }
.small { font-size: var(--fs-small); }
.tiny { font-size: var(--fs-tiny); }
.mono { font-family: var(--font-mono); }
.center { text-align: center; }
.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;
  left: 1rem; top: -4rem;
  z-index: 300;
  background: var(--cobalt);
  color: #fff;
  padding: 0.6rem 1.1rem;
  border-radius: var(--r-sm);
  font-weight: 600;
  transition: top var(--dur-fast) var(--ease-out);
}
.skip-link:focus { top: 1rem; }

/* --- Focus visibility --- */
:focus-visible {
  outline: 3px solid var(--cobalt);
  outline-offset: 3px;
  border-radius: 6px;
}

/* --- Grid helpers --- */
.grid { display: grid; gap: clamp(1rem, 2.4vw, 1.6rem); }

/* The hidden attribute must always win. Author styles like
   `display: grid` otherwise defeat the UA's [hidden] rule and
   render gated views (e.g. the admin dashboard) beneath the
   login screen. */
[hidden] { display: none !important; }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

/* --- Reveal-on-scroll --- */
.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity var(--dur-slow) var(--ease-out), transform var(--dur-slow) var(--ease-out);
  transition-delay: var(--reveal-delay, 0ms);
  will-change: opacity, transform;
}
.reveal.is-visible { opacity: 1; transform: none; }

/* --- Reduced motion --- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  .reveal { opacity: 1 !important; transform: none !important; }
}

/* Reduced-motion switch driven by site settings (mirrors media query above) */
html[data-motion="reduced"] .reveal { opacity: 1 !important; transform: none !important; }
html[data-motion="reduced"] body { scroll-behavior: auto; }
html[data-motion="reduced"] .anim-float,
html[data-motion="reduced"] .blob,
html[data-motion="reduced"] .liquid-orb { animation: none !important; }

/* ============================================================
   Design-token overrides (Admin → Appearance → Design tokens)
   ============================================================ */
:root[data-borders="subtle"] { --border-ink: rgba(36, 38, 58, 0.06); --border-strong: rgba(36, 38, 58, 0.10); }
:root[data-theme="dark"][data-borders="subtle"] { --border-ink: rgba(255, 255, 255, 0.06); --border-strong: rgba(255, 255, 255, 0.14); }
:root[data-borders="strong"] { --border-ink: rgba(36, 38, 58, 0.22); --border-strong: rgba(36, 38, 58, 0.32); }
:root[data-theme="dark"][data-borders="strong"] { --border-ink: rgba(255, 255, 255, 0.20); --border-strong: rgba(255, 255, 255, 0.34); }

:root[data-cta-flat] .btn-gradient { background: var(--cobalt); }

:root[data-density="compact"] .stat-card { padding: 0.95rem 1.05rem; }
:root[data-density="compact"] .skill-group { padding: 1rem 1.1rem; }
:root[data-density="compact"] .info-card { padding: 1rem 1.1rem; }
:root[data-density="compact"] .tl-card { padding: 1rem 1.15rem; }
:root[data-density="compact"] .code-card { padding: 1rem 1.15rem; }

:root[data-nav-layout="boxed"] .nav-shell {
  background: var(--surface-glass-strong);
  border: 1px solid var(--border);
  border-radius: var(--r-pill);
  padding: 0.35rem 0.55rem 0.35rem 1rem;
  margin-top: 0.6rem;
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
}
:root[data-footer-layout="stacked"] .footer-grid { grid-template-columns: 1fr; }