/* ==========================================================================
   NIXZIE — Personal Profile Website
   Web Server & Hosting Assignment
   Vanilla CSS3 — no frameworks
   ========================================================================== */

/* ---------- Custom Properties ---------- */
:root {
  --bg: #0d0d0d;
  --surface: #181818;
  --surface-raised: #1f1f1f;
  --border: #2a2a2a;
  --text-primary: #ffffff;
  --text-secondary: #b3b3b3;
  --accent: #c8a96a;
  --accent-soft: rgba(200, 169, 106, 0.14);
  --rec: #b5453f;

  --font-display: 'Playfair Display', Georgia, serif;
  --font-body: 'Poppins', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'Courier New', monospace;

  --max-width: 1160px;
  --section-pad: clamp(4.5rem, 9vw, 8rem);
  --radius: 2px;

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --dur: 0.6s;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-weight: 300;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 600; margin: 0; }
p { margin: 0; }
ul, ol, dl { margin: 0; padding: 0; list-style: none; }
dd { margin: 0; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { font: inherit; color: inherit; background: none; border: none; cursor: pointer; }
input, textarea { font: inherit; color: inherit; }

.icon { width: 1.15em; height: 1.15em; fill: none; stroke: none; vertical-align: -0.2em; }
.icon-sm { width: 1em; height: 1em; }
.icon-lg { width: 2.2rem; height: 2.2rem; }
.icon-xl { width: 3rem; height: 3rem; }

/* Focus visibility for accessibility */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
  outline: 1.5px solid var(--accent);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--accent);
  color: #0d0d0d;
  padding: 0.75rem 1.25rem;
  z-index: 999;
  font-size: 0.85rem;
}
.skip-link:focus { left: 1rem; top: 1rem; }

/* ---------- Layout helpers ---------- */
.section { padding: var(--section-pad) 1.5rem; position: relative; }
.section-alt { background: linear-gradient(180deg, transparent, rgba(255,255,255,0.015) 15%, rgba(255,255,255,0.015) 85%, transparent); }
.section-inner { max-width: var(--max-width); margin: 0 auto; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.9rem;
}
/* Timecode signature: every section eyebrow carries a running SMPTE-style code,
   like a scrub-bar readout — ties the whole page to a "life as a reel" idea. */
.eyebrow::before {
  content: attr(data-tc);
  color: var(--text-secondary);
  font-size: 0.68rem;
  opacity: 0.7;
}
.eyebrow::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
  max-width: 5rem;
}

.section-title {
  font-size: clamp(1.9rem, 3.4vw, 2.9rem);
  letter-spacing: -0.01em;
  margin-bottom: 2.75rem;
  max-width: 26ch;
}
.section-lead {
  color: var(--text-secondary);
  margin-top: -1.75rem;
  margin-bottom: 2.5rem;
  max-width: 46ch;
  font-size: 0.95rem;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.95rem 2rem;
  font-size: 0.85rem;
  letter-spacing: 0.03em;
  border: 1px solid transparent;
  border-radius: var(--radius);
  transition: transform var(--dur) var(--ease), background var(--dur) var(--ease), border-color var(--dur) var(--ease), color var(--dur) var(--ease);
  white-space: nowrap;
}
.btn-primary { background: var(--accent); color: #17140d; }
.btn-primary:hover { background: #dab97c; transform: translateY(-2px); }
.btn-ghost { border-color: var(--border); color: var(--text-primary); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }
.btn-block { width: 100%; padding: 1rem; margin-top: 0.5rem; }

/* ==========================================================================
   LOADING SCREEN
   ========================================================================== */
#loading-screen {
  position: fixed;
  inset: 0;
  z-index: 999;
  background: var(--bg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1.1rem;
  transition: opacity 0.7s var(--ease), visibility 0.7s var(--ease);
}
#loading-screen.is-hidden { opacity: 0; visibility: hidden; pointer-events: none; }

.loader-mark { position: relative; display: grid; place-items: center; }
.loader-ring { position: absolute; transform: rotate(-90deg); }
.loader-ring-track { fill: none; stroke: var(--border); stroke-width: 1; }
.loader-ring-progress {
  fill: none;
  stroke: var(--accent);
  stroke-width: 1;
  stroke-linecap: round;
  stroke-dasharray: 195;
  stroke-dashoffset: 195;
  animation: loaderSpin 1.6s var(--ease) infinite;
}
@keyframes loaderSpin {
  0% { stroke-dashoffset: 195; transform-origin: center; }
  50% { stroke-dashoffset: 40; }
  100% { stroke-dashoffset: 195; }
}
.loader-wordmark {
  font-family: var(--font-display);
  font-size: 0.95rem;
  letter-spacing: 0.3em;
  padding-left: 0.3em;
}
.loader-caption {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: var(--text-secondary);
  text-transform: uppercase;
}
.loader-dots { display: inline-block; animation: loaderDots 1.4s steps(4) infinite; overflow: hidden; width: 1em; }
@keyframes loaderDots { from { width: 0; } to { width: 1.2em; } }

/* ==========================================================================
   NAVBAR
   ========================================================================== */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: transparent;
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease);
  border-bottom: 1px solid transparent;
}
.navbar.is-scrolled {
  background: rgba(24, 24, 24, 0.88);
  backdrop-filter: blur(10px);
  border-bottom-color: var(--border);
}
.navbar-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1.35rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.navbar-logo {
  font-family: var(--font-display);
  font-size: 1.05rem;
  letter-spacing: 0.22em;
  color: var(--text-primary);
}
.navbar-list {
  display: flex;
  align-items: center;
  gap: 2.1rem;
}
.nav-link {
  font-size: 0.8rem;
  letter-spacing: 0.03em;
  color: var(--text-secondary);
  position: relative;
  padding: 0.3rem 0;
  transition: color var(--dur) var(--ease);
}
.nav-link::after {
  content: '';
  position: absolute;
  left: 0; bottom: -2px;
  width: 0; height: 1px;
  background: var(--accent);
  transition: width var(--dur) var(--ease);
}
.nav-link:hover { color: var(--text-primary); }
.nav-link.is-active { color: var(--accent); }
.nav-link.is-active::after { width: 100%; }

.navbar-toggle {
  display: none;
  padding: 0.4rem;
  color: var(--text-primary);
}
.navbar-toggle .icon { width: 1.4rem; height: 1.4rem; stroke: currentColor; fill: none; }
.navbar-toggle .icon-close-menu { display: none; }
.navbar-toggle[aria-expanded="true"] .icon-open { display: none; }
.navbar-toggle[aria-expanded="true"] .icon-close-menu { display: block; }

/* Scrub track: fills as the page scrolls, echoing a video editing timeline */
.scrub-track { height: 2px; background: rgba(255,255,255,0.06); }
.scrub-fill { height: 100%; width: 0%; background: var(--accent); transition: width 0.1s linear; }

@media (max-width: 860px) {
  .navbar-nav {
    position: fixed;
    top: 0; right: 0;
    height: 100vh;
    width: min(78vw, 320px);
    background: var(--surface);
    border-left: 1px solid var(--border);
    padding: 6rem 2rem 2rem;
    transform: translateX(100%);
    transition: transform var(--dur) var(--ease);
  }
  .navbar-nav.is-open { transform: translateX(0); }
  .navbar-list { flex-direction: column; align-items: flex-start; gap: 1.5rem; }
  .navbar-toggle { display: block; }
}

/* ==========================================================================
   HERO
   ========================================================================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 6rem 1.5rem 4rem;
  overflow: hidden;
  isolation: isolate;
}
.hero-letterbox {
  position: absolute;
  left: 0; right: 0;
  height: clamp(14px, 3.4vh, 34px);
  background: #000;
  z-index: 3;
}
.hero-letterbox-top { top: 0; }
.hero-letterbox-bottom { bottom: 0; }

.hero-bg { position: absolute; inset: 0; z-index: 0; }
.hero-bg-gradient {
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 60% 50% at 50% 20%, rgba(200,169,106,0.10), transparent 60%),
    radial-gradient(ellipse 80% 60% at 50% 100%, rgba(255,255,255,0.04), transparent 60%),
    linear-gradient(180deg, #0d0d0d, #111111 55%, #0d0d0d);
}
.hero-bg-grain {
  position: absolute; inset: 0;
  opacity: 0.05;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='120' height='120'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
}

.hero-content { position: relative; z-index: 2; max-width: 780px; text-align: center; }
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-bottom: 1.75rem;
}
.rec-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--rec); animation: recPulse 1.8s ease-in-out infinite; }
@keyframes recPulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.35; } }

.hero-title { margin-bottom: 1.4rem; }
.hero-title-line {
  display: block;
  font-size: clamp(1.05rem, 2vw, 1.35rem);
  font-weight: 400;
  color: var(--text-secondary);
  font-family: var(--font-body);
  margin-bottom: 0.5rem;
}
.hero-title-name {
  display: inline-block;
  font-size: clamp(2.1rem, 6vw, 4.1rem);
  font-style: italic;
  line-height: 1.15;
  border-right: 2px solid var(--accent);
  padding-right: 6px;
  white-space: nowrap;
  overflow: hidden;
  max-width: 100%;
}
.hero-title-name.typing-done { border-right-color: transparent; }

.hero-subtitle {
  font-family: var(--font-mono);
  font-size: clamp(0.85rem, 1.6vw, 1rem);
  letter-spacing: 0.04em;
  color: var(--accent);
  margin-bottom: 1.5rem;
}
.role-word { opacity: 0.25; transition: opacity 0.5s var(--ease); }
.role-word.is-active { opacity: 1; }
.role-sep { color: var(--border); margin: 0 0.6rem; }

.hero-tagline {
  color: var(--text-secondary);
  font-size: clamp(0.95rem, 1.6vw, 1.1rem);
  max-width: 42ch;
  margin: 0 auto 2.75rem;
}
.hero-cta { display: flex; align-items: center; justify-content: center; gap: 1rem; flex-wrap: wrap; }

.scroll-indicator {
  position: absolute;
  bottom: clamp(2rem, 6vh, 3.2rem);
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-secondary);
  animation: bounce 2.2s ease-in-out infinite;
}
@keyframes bounce { 0%, 100% { transform: translate(-50%, 0); } 50% { transform: translate(-50%, 8px); } }

/* ==========================================================================
   ABOUT
   ========================================================================== */
.about-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: clamp(2.5rem, 6vw, 5rem);
  align-items: start;
}
.photo-frame { position: relative; padding: 14px; }

.photo-img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  border: 1px solid var(--border);
  display: block;
}

.photo-placeholder {
  aspect-ratio: 4 / 5;
  background: var(--surface);
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  color: var(--text-secondary);
}
.photo-placeholder .icon { color: var(--accent); opacity: 0.7; }
.photo-placeholder span { font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.08em; text-transform: uppercase; }
.photo-frame-corner { position: absolute; width: 26px; height: 26px; border: 1.5px solid var(--accent); }
.photo-frame-corner.tl { top: 0; left: 0; border-right: none; border-bottom: none; }
.photo-frame-corner.br { bottom: 0; right: 0; border-left: none; border-top: none; }

.about-narrative { font-size: 1.05rem; color: var(--text-secondary); margin-bottom: 2.5rem; max-width: 52ch; }

.info-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--border); border: 1px solid var(--border); }
.info-card { background: var(--surface); padding: 1.25rem 1.4rem; transition: background var(--dur) var(--ease); }
.info-card:hover { background: var(--surface-raised); }
.info-card dt { font-family: var(--font-mono); font-size: 0.65rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--accent); margin-bottom: 0.4rem; }
.info-card dd { font-size: 0.9rem; word-break: break-word; }
.info-card a:hover { color: var(--accent); }

/* ==========================================================================
   TIMELINE (Education + Experience)
   ========================================================================== */
.timeline { position: relative; padding-left: 2.5rem; }
.timeline::before {
  content: '';
  position: absolute;
  left: 9px; top: 6px; bottom: 6px;
  width: 1px;
  background: linear-gradient(180deg, var(--accent), var(--border) 85%);
}
.timeline-item { position: relative; padding-bottom: 2.75rem; }
.timeline-item:last-child { padding-bottom: 0; }
.timeline-node {
  position: absolute;
  left: -2.5rem; top: 0;
  width: 19px; height: 19px;
  border-radius: 50%;
  background: var(--bg);
  border: 1.5px solid var(--accent);
  display: grid;
  place-items: center;
  color: var(--accent);
}
.timeline-node .icon { width: 0.65rem; height: 0.65rem; }
.timeline-card {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 1.5rem 1.75rem;
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.timeline-card:hover { border-color: var(--accent); transform: translateX(4px); }
.timeline-date { font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.06em; color: var(--accent); }
.timeline-card h3 { font-size: 1.15rem; margin: 0.5rem 0 0.5rem; }
.timeline-card p { color: var(--text-secondary); font-size: 0.9rem; }
.timeline-compact .timeline-card { padding: 1.35rem 1.6rem; }

/* ==========================================================================
   SKILLS
   ========================================================================== */
.skills-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(2.5rem, 6vw, 5rem); }
.skill-column-title {
  display: flex; align-items: center; gap: 0.6rem;
  font-size: 1.05rem; margin-bottom: 1.75rem; color: var(--text-primary);
}
.skill-column-title .icon { color: var(--accent); }
.skill-bars { display: flex; flex-direction: column; gap: 1.15rem; }
.skill-bar-head { display: flex; justify-content: space-between; font-size: 0.85rem; margin-bottom: 0.5rem; }
.skill-bar-pct { font-family: var(--font-mono); color: var(--accent); font-size: 0.78rem; }
.skill-bar-track { height: 3px; background: var(--border); position: relative; overflow: hidden; }
.skill-bar-fill {
  position: absolute; left: 0; top: 0; bottom: 0;
  width: 0%;
  background: var(--accent);
  transition: width 1.1s var(--ease);
}
.skill-bar.in-view .skill-bar-fill { width: var(--fill, 0%); }

/* ==========================================================================
   PORTFOLIO
   ========================================================================== */
.portfolio-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.4rem; }
.portfolio-card {
  position: relative;
  display: flex;
  flex-direction: column;
  text-align: left;
  background: var(--surface);
  border: 1px solid var(--border);
  overflow: hidden;
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.portfolio-card:hover { transform: translateY(-5px); border-color: var(--accent); }
.portfolio-thumb {
  aspect-ratio: 4 / 3;
  display: grid;
  place-items: center;
  background: linear-gradient(150deg, #1c1c1c, #141414);
  color: var(--accent);
  opacity: 0.65;
  transition: transform 0.7s var(--ease), opacity var(--dur) var(--ease);
}
.portfolio-card:hover .portfolio-thumb { transform: scale(1.08); opacity: 0.9; }
.portfolio-play {
  position: absolute;
  top: 1rem; right: 1rem;
  width: 2.2rem; height: 2.2rem;
  border-radius: 50%;
  background: rgba(13,13,13,0.75);
  border: 1px solid var(--accent);
  display: grid; place-items: center;
  color: var(--accent);
  opacity: 0;
  transform: scale(0.8);
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.portfolio-card:hover .portfolio-play { opacity: 1; transform: scale(1); }
.portfolio-info { padding: 1.2rem 1.4rem 1.4rem; display: flex; flex-direction: column; gap: 0.3rem; }
.portfolio-category { font-family: var(--font-mono); font-size: 0.65rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--accent); }
.portfolio-title { font-family: var(--font-display); font-size: 1.15rem; font-style: italic; }

/* ==========================================================================
   GALLERY (Behind the Scenes)
   ========================================================================== */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-auto-rows: 150px;
  gap: 0.9rem;
}
.gallery-item-tall { grid-row: span 2; }
.gallery-item-wide { grid-column: span 2; }
.gallery-item {
  position: relative;
  margin: 0;
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--border);
}
.gallery-placeholder {
  position: absolute; inset: 0;
  display: grid; place-items: center;
  color: var(--accent);
  opacity: 0.55;
  background: linear-gradient(160deg, #1c1c1c, #131313);
  transition: transform 0.7s var(--ease);
}
.gallery-item:hover .gallery-placeholder { transform: scale(1.1); }
.gallery-item figcaption {
  position: absolute; inset: 0;
  display: flex; align-items: flex-end;
  padding: 1rem;
  background: linear-gradient(180deg, transparent 40%, rgba(0,0,0,0.85));
  opacity: 0;
  transition: opacity var(--dur) var(--ease);
}
.gallery-item:hover figcaption { opacity: 1; }
.gallery-item figcaption span { font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.05em; }

/* ==========================================================================
   CONTACT
   ========================================================================== */
.contact-grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: clamp(2.5rem, 6vw, 4.5rem); }
.contact-cards { display: flex; flex-direction: column; gap: 1px; background: var(--border); border: 1px solid var(--border); }
.contact-card {
  display: flex; align-items: center; gap: 1rem;
  padding: 1.3rem 1.5rem;
  background: var(--surface);
  transition: background var(--dur) var(--ease), padding-left var(--dur) var(--ease);
}
.contact-card:hover { background: var(--surface-raised); padding-left: 1.85rem; }
.contact-card .icon { color: var(--accent); width: 1.3rem; height: 1.3rem; flex-shrink: 0; }
.contact-card-label { display: block; font-family: var(--font-mono); font-size: 0.62rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--text-secondary); margin-bottom: 0.2rem; }
.contact-card-value { display: block; font-size: 0.92rem; }

.contact-form { display: flex; flex-direction: column; gap: 1.5rem; }
.field { position: relative; }
.field input, .field textarea {
  width: 100%;
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--border);
  padding: 0.85rem 0.1rem;
  color: var(--text-primary);
  transition: border-color var(--dur) var(--ease);
  resize: vertical;
}
.field textarea { min-height: 6rem; }
.field label {
  position: absolute;
  left: 0.1rem; top: 0.85rem;
  color: var(--text-secondary);
  font-size: 0.92rem;
  pointer-events: none;
  transition: transform var(--dur) var(--ease), font-size var(--dur) var(--ease), color var(--dur) var(--ease);
}
.field input:focus, .field textarea:focus { outline: none; border-color: var(--accent); }
.field input:focus + label,
.field input:not(:placeholder-shown) + label,
.field textarea:focus + label,
.field textarea:not(:placeholder-shown) + label {
  transform: translateY(-1.4rem);
  font-size: 0.68rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--accent);
}
.form-status { font-size: 0.82rem; color: var(--accent); min-height: 1.2em; }

/* ==========================================================================
   FOOTER
   ========================================================================== */
.site-footer { border-top: 1px solid var(--border); padding: 3.5rem 1.5rem 2.5rem; }
.footer-inner { display: flex; flex-direction: column; align-items: center; gap: 1.5rem; text-align: center; }
.footer-thanks { font-family: var(--font-display); font-style: italic; font-size: 1.3rem; }
.footer-nav { display: flex; gap: 1.75rem; flex-wrap: wrap; justify-content: center; }
.footer-nav a { font-size: 0.82rem; color: var(--text-secondary); transition: color var(--dur) var(--ease); }
.footer-nav a:hover { color: var(--accent); }
.footer-social { display: flex; gap: 1.1rem; }
.footer-social a {
  width: 2.1rem; height: 2.1rem;
  display: grid; place-items: center;
  border: 1px solid var(--border);
  border-radius: 50%;
  color: var(--text-secondary);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.footer-social a:hover { color: var(--accent); border-color: var(--accent); }
.footer-copy { font-size: 0.75rem; color: var(--text-secondary); opacity: 0.75; }

/* ==========================================================================
   BACK TO TOP
   ========================================================================== */
.back-to-top {
  position: fixed;
  right: 1.6rem; bottom: 1.6rem;
  width: 2.9rem; height: 2.9rem;
  border-radius: 50%;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--accent);
  display: grid; place-items: center;
  opacity: 0; visibility: hidden;
  transform: translateY(12px);
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease), border-color var(--dur) var(--ease);
  z-index: 60;
}
.back-to-top.is-visible { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top:hover { border-color: var(--accent); }

/* ==========================================================================
   MODAL
   ========================================================================== */
.modal-overlay {
  position: fixed; inset: 0;
  z-index: 200;
  background: rgba(6,6,6,0.82);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  transition: opacity var(--dur) var(--ease);
}
.modal-overlay.is-open { opacity: 1; }
.modal-overlay[hidden] { display: none; }
.modal {
  width: min(640px, 100%);
  max-height: 88vh;
  overflow-y: auto;
  background: var(--surface);
  border: 1px solid var(--border);
  position: relative;
  transform: translateY(16px) scale(0.98);
  transition: transform var(--dur) var(--ease);
}
.modal-overlay.is-open .modal { transform: translateY(0) scale(1); }
.modal-close {
  position: absolute; top: 1rem; right: 1rem;
  width: 2.2rem; height: 2.2rem;
  display: grid; place-items: center;
  border: 1px solid var(--border);
  border-radius: 50%;
  color: var(--text-primary);
  background: rgba(13,13,13,0.6);
  z-index: 2;
  transition: border-color var(--dur) var(--ease);
}
.modal-close:hover { border-color: var(--accent); color: var(--accent); }
.modal-media {
  aspect-ratio: 16 / 9;
  display: grid; place-items: center;
  background: linear-gradient(150deg, #1c1c1c, #121212);
  color: var(--accent);
}
.modal-body { padding: 2rem clamp(1.5rem, 4vw, 2.5rem) 2.5rem; }
.modal-category { font-family: var(--font-mono); font-size: 0.68rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--accent); }
.modal-title { font-size: 1.6rem; font-style: italic; margin: 0.6rem 0 1rem; }
.modal-desc { color: var(--text-secondary); margin-bottom: 1.75rem; }
.modal-meta { display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem; border-top: 1px solid var(--border); padding-top: 1.5rem; }
.modal-meta dt { font-family: var(--font-mono); font-size: 0.62rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--text-secondary); margin-bottom: 0.3rem; }
.modal-meta dd { font-size: 0.9rem; }

/* ==========================================================================
   SCROLL REVEAL
   ========================================================================== */
.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.85s var(--ease), transform 0.85s var(--ease);
}
.reveal.in-view { opacity: 1; transform: translateY(0); }

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */
@media (max-width: 900px) {
  .about-grid { grid-template-columns: 1fr; }
  .photo-frame { max-width: 340px; margin: 0 auto; }
  .skills-grid { grid-template-columns: 1fr; gap: 3rem; }
  .contact-grid { grid-template-columns: 1fr; }
  .portfolio-grid { grid-template-columns: repeat(2, 1fr); }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
  .gallery-item-wide { grid-column: span 2; }
}

@media (max-width: 600px) {
  .info-grid { grid-template-columns: 1fr; }
  .portfolio-grid { grid-template-columns: 1fr; }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); grid-auto-rows: 130px; }
  .modal-meta { grid-template-columns: 1fr; }
  .hero-cta { flex-direction: column; width: 100%; }
  .hero-cta .btn { width: 100%; }
}

/* ---------- 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; transform: none; }
}