/*! Michael Dattolo Portfolio — stylesheet v3.0.4 · 2026-06-08 */
/* ============================================================
   BASE — resets, layout, header, footer, textures, motion
   ============================================================ */

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

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

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  color: var(--text-body);
  background: var(--bg);
  line-height: 1.7;
  letter-spacing: 0.01em;
  position: relative;
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  transition: opacity var(--dur-2) var(--ease-out);
}

body.fade-out {
  opacity: 0;
}

/* ---- Ambient backdrop: drifting aurora + fine grid + grain ---- */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  background:
    radial-gradient(60rem 40rem at 12% -8%, rgba(255, 122, 69, 0.12), transparent 60%),
    radial-gradient(50rem 38rem at 92% 4%, rgba(110, 168, 255, 0.08), transparent 55%),
    radial-gradient(46rem 40rem at 78% 96%, rgba(255, 90, 54, 0.09), transparent 60%),
    var(--bg);
}

/* Fine blueprint grid + grain overlay */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.5;
  background-image:
    repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.022) 0 1px, transparent 1px 64px),
    repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.022) 0 1px, transparent 1px 64px),
    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='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.5'/%3E%3C/svg%3E");
  background-size: 64px 64px, 64px 64px, 160px 160px;
  mask-image: radial-gradient(120% 100% at 50% 0%, #000 30%, transparent 95%);
}

img {
  max-width: 100%;
  height: auto;
}

::selection {
  background: rgba(255, 122, 69, 0.3);
  color: #fff;
}

/* ---- Typography ---- */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--text-heading);
  margin: 0 0 var(--space-4);
  text-wrap: balance;
}

p {
  max-width: 68ch;
  color: var(--text-body);
}

a {
  color: var(--accent-bright);
  text-decoration: none;
  text-underline-offset: 0.2em;
  transition: color var(--dur-1) var(--ease-out), opacity var(--dur-1) var(--ease-out);
}

a:hover {
  color: var(--accent);
}

strong { color: var(--text); }

/* ---- Accessibility utilities ---- */
.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;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible,
[tabindex]:focus-visible {
  outline: 2px solid var(--accent-bright);
  outline-offset: 3px;
  border-radius: 6px;
}

.skip-link {
  position: absolute;
  left: var(--space-4);
  top: -120%;
  background: var(--accent);
  color: #1a0a02;
  font-weight: 600;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-1);
  z-index: 1000;
  transition: top var(--dur-2) var(--ease-out);
}
.skip-link:focus { top: var(--space-3); }

/* ---- Layout ---- */
.container {
  width: min(100% - 2.5rem, var(--container));
  margin-inline: auto;
}
.container-wide {
  width: min(100% - 2.5rem, var(--container-wide));
  margin-inline: auto;
}

.section-space {
  margin-top: var(--space-9);
  margin-bottom: var(--space-9);
}

.eyebrow,
.kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent-bright);
  margin: 0 0 var(--space-3);
}
.eyebrow::before,
.kicker::before {
  content: "";
  width: 1.6rem;
  height: 1px;
  background: var(--accent-line);
}

/* Section heading helper */
.section-head {
  max-width: 60ch;
  margin-bottom: var(--space-6);
}
.section-head h2 {
  font-size: var(--fs-h2);
}

/* Gradient text accent */
.grad-text {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ============================================================
   HEADER
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: linear-gradient(180deg, rgba(10, 10, 12, 0.85), rgba(10, 10, 12, 0.55));
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  border-bottom: 1px solid var(--border);
  transition: border-color var(--dur-2) var(--ease-out), background var(--dur-2) var(--ease-out);
}
.site-header.is-scrolled {
  border-bottom-color: var(--border-strong);
  background: rgba(9, 9, 11, 0.92);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 4.6rem;
  gap: var(--space-4);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.02rem;
  letter-spacing: -0.01em;
  color: var(--text-heading);
  text-decoration: none;
}
.brand:hover { color: var(--text-heading); }
.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 11px;
  background: var(--accent-gradient);
  color: #1a0a02;
  font-weight: 700;
  font-size: 1.05rem;
  box-shadow: var(--glow-accent-soft);
  transition: transform var(--dur-2) var(--ease-spring);
}
.brand:hover .brand-mark { transform: rotate(-8deg) scale(1.05); }
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-name { font-weight: 700; }
.brand-sub {
  color: var(--text-dim);
  font-weight: 500;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.nav-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.nav-list a {
  position: relative;
  display: inline-block;
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--text-dim);
  padding: 0.45rem 0.85rem;
  border-radius: var(--radius-pill);
  transition: color var(--dur-1) var(--ease-out), background var(--dur-1) var(--ease-out);
}
.nav-list a:hover {
  color: var(--text-heading);
  background: rgba(255, 255, 255, 0.05);
}
.nav-list a[aria-current="page"],
.nav-list a.active {
  color: var(--text-heading);
  background: rgba(255, 255, 255, 0.06);
}
.nav-list a[aria-current="page"]::after,
.nav-list a.active::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 0.05rem;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
  transform: translateX(-50%);
  box-shadow: 0 0 10px var(--accent);
}
.nav-cta { margin-left: var(--space-2); }

@media (max-width: 42rem) {
  .brand-sub { display: none; }
  .nav-list { gap: 0.1rem; }
  .nav-list a { padding: 0.4rem 0.6rem; font-size: 0.88rem; }
  .nav-cta { display: none; }
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  margin-top: var(--space-9);
  border-top: 1px solid var(--border);
  background: linear-gradient(180deg, transparent, rgba(255, 122, 69, 0.03));
  padding: var(--space-8) 0 var(--space-6);
  color: var(--text-dim);
}
.footer-inner {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, auto));
  align-items: center;
  gap: var(--space-3) var(--space-5);
  justify-content: space-between;
}
.footer-inner p { margin: 0; }
.footer-cta {
  grid-column: 1 / -1;
  margin-bottom: var(--space-5);
  padding-bottom: var(--space-5);
  border-bottom: 1px solid var(--border);
}
.footer-cta p {
  max-width: 60ch;
  color: var(--text-body);
  font-size: 1.05rem;
  margin: 0;
}
.footer-cta a { font-weight: 600; }
@media (max-width: 46rem) {
  .footer-inner { grid-template-columns: 1fr; gap: var(--space-3); }
}

.page-main { padding-top: var(--space-7); }

/* ============================================================
   SCROLL PROGRESS
   ============================================================ */
.scroll-progress {
  position: fixed;
  inset: 0 auto auto 0;
  height: 3px;
  width: 0%;
  background: var(--accent-gradient);
  z-index: 100;
  pointer-events: none;
  box-shadow: 0 0 12px rgba(255, 122, 69, 0.6);
}
#reading-progress {
  position: fixed;
  inset: 0 auto auto 0;
  height: 3px;
  width: 100%;
  transform: scaleX(0);
  transform-origin: 0 0;
  background: var(--accent-gradient);
  z-index: 9999;
  pointer-events: none;
  box-shadow: 0 0 12px rgba(255, 122, 69, 0.6);
}

/* ============================================================
   MOTION — scroll reveal
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
  will-change: opacity, transform;
}
.reveal.is-in { opacity: 1; transform: none; }
.reveal[data-delay="1"] { transition-delay: 0.08s; }
.reveal[data-delay="2"] { transition-delay: 0.16s; }
.reveal[data-delay="3"] { transition-delay: 0.24s; }
.reveal[data-delay="4"] { transition-delay: 0.32s; }

/* legacy reveal hooks still used by some markup/JS */
.will-reveal { opacity: 0; transform: translateY(18px); transition: opacity .5s var(--ease-out), transform .5s var(--ease-out); }
.will-reveal.is-revealed { opacity: 1; transform: none; }
.fade-up { opacity: 0; transform: translateY(24px); transition: opacity .7s var(--ease-out), transform .7s var(--ease-out); }
.fade-up.visible { opacity: 1; transform: none; }

@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, .fade-up, .will-reveal { opacity: 1 !important; transform: none !important; }
}