:root {
  --primary-color: #ffb347;
  --light-primary-shade: #ffd97d;
  --bg-dark: #1e1f26;
  --text-dark: #e0e0e0;
  --contact-secondary-purple: #9c27b0;

  /* Glass tokens */
  --glass-bg: rgba(255,255,255,0.06);
  --glass-stroke: rgba(255,255,255,0.20);
  --glass-shadow: 0 10px 40px rgba(0,0,0,0.45);
  --glass-blur: 24px;
  --glass-sat: 160%;
}

/* ---------- Base ---------- */
* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  background-color: #070708;
  color: var(--text-dark);
  font-family: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  margin: 0;
  text-align: center;
  line-height: 1.6;
  min-height: 100vh;
  background-image:
    radial-gradient(circle at top left, #2f0a5d 0%, transparent 50%),
    radial-gradient(circle at bottom right, #004d40 0%, transparent 50%);
  background-blend-mode: screen;
  perspective: 1200px; /* for subtle 3d feel on hover */
}

/* Ambient hero orb */
body::before{
  content:"";
  position:fixed; inset:auto auto 10% -10%;
  width:55vmax; height:55vmax; border-radius:50%;
  background: radial-gradient(circle at 30% 30%, rgba(255,180,70,.35), transparent 45%),
              radial-gradient(circle at 70% 60%, rgba(156,39,176,.28), transparent 50%);
  filter: blur(60px) saturate(140%);
  opacity:.45; z-index:-1;
  transform: translate(var(--orbX, 0), var(--orbY, 0));
  animation: floaty 18s ease-in-out infinite;
}
@keyframes floaty{
  0%,100%{ transform: translate(var(--orbX, 0), var(--orbY, 0)) scale(1); }
  50%    { transform: translate(calc(var(--orbX, 0) + 6%), calc(var(--orbY, 0) - 4%)) scale(1.06); }
}

/* ---------- Header & container ---------- */
.site-header { padding: 24px 0 0; }
.container {
  position: relative;
  max-width: 900px;
  margin: auto;
  padding: 40px 20px;
  border-radius: 22px;

  background:
    radial-gradient(120% 160% at 0% 0%, rgba(255,255,255,0.08), transparent 60%),
    linear-gradient(180deg, rgba(255,255,255,0.10), rgba(255,255,255,0.04)),
    var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-sat));
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-sat));
  border: 1px solid color-mix(in srgb, var(--contact-secondary-purple) 28%, white 0%);
  box-shadow: var(--glass-shadow);
  transition: box-shadow .28s ease, transform .28s ease;
}
.container::before {
  content: "";
  position: absolute; inset: 0;
  border-radius: inherit;
  background: linear-gradient(to bottom,
    rgba(255,255,255,0.35) 0%,
    rgba(255,255,255,0.12) 18%,
    rgba(255,255,255,0.06) 35%,
    transparent 55%);
  pointer-events: none;
  mask: radial-gradient(130% 60% at 50% -20%, black 40%, transparent 60%);
}
.container::after {
  content: "";
  position: absolute; inset: 0;
  border-radius: inherit;
  pointer-events: none;
  opacity: .45; mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml;utf8,\
    <svg xmlns='http://www.w3.org/2000/svg' width='140' height='140' viewBox='0 0 140 140'>\
      <filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix type='saturate' values='0'/><feComponentTransfer><feFuncA type='table' tableValues='0 0 0 .05 .18 .05 0 0 0'/></feComponentTransfer></filter>\
      <rect width='100%' height='100%' filter='url(%23n)'/>\
    </svg>");
  background-size: 220px 220px;
}
.container:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 60px rgba(0,0,0,0.55);
}

/* ---------- Headline ---------- */
.gradient-header {
  background: linear-gradient(270deg, var(--primary-color), #ff8c00, var(--primary-color));
  background-size: 600% 600%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: gradientMove 8s ease infinite;
  margin-top: 16px;
  margin-bottom: 10px;
}
@keyframes gradientMove {
  0% {background-position: 0% 50%;}
  50% {background-position: 100% 50%;}
  100% {background-position: 0% 50%;}
}
.welcome-gradient {
  background: linear-gradient(270deg, var(--primary-color), #ff8c00, var(--primary-color));
  background-size: 600% 600%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: gradientMove 8s ease infinite;
  margin-bottom: 0.5em;
  font-size: 2.7em;
  font-weight: 800;
  text-shadow:
    0 0 12px rgba(255,140,0,.35),
    0 0 28px rgba(255,179,71,.25),
    0 0 10px rgba(0, 198, 255, 0.2);
}

/* ---------- Profile & buttons ---------- */
.profile-img {
  width: 150px; height: 150px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--primary-color);
  margin-bottom: 20px;
  box-shadow: 0 0 20px color-mix(in srgb, var(--primary-color) 45%, transparent);
  animation: glow 3s ease-in-out infinite;
}
@keyframes glow {
  0%,100% { box-shadow: 0 0 20px color-mix(in srgb, var(--primary-color) 28%, transparent); }
  50% {    box-shadow: 0 0 36px color-mix(in srgb, var(--primary-color) 60%, transparent); }
}

p {
  font-size: 1.1em;
  line-height: 1.7;
  margin-bottom: 1.2em;
  color: var(--text-dark);
}

nav[aria-label="Primary"] { margin-bottom: 8px; }

.btn {
  display: inline-flex;
  align-items: center;
  background: linear-gradient(90deg, var(--light-primary-shade) 0%, var(--primary-color) 55%, var(--light-primary-shade) 100%);
  color: #0f1116;
  padding: 13px 34px;
  border-radius: 30px;
  text-decoration: none;
  font-size: 20px;
  font-weight: 700;
  box-shadow: 0 4px 22px color-mix(in srgb, var(--primary-color) 55%, transparent);
  border: none;
  transition: background 0.24s, color 0.15s, box-shadow 0.21s, transform 0.2s;
  animation: pulse 2s infinite;
  margin: 10px;
}
.btn:hover, .btn:focus {
  background: linear-gradient(90deg, var(--primary-color) 0%, var(--light-primary-shade) 60%, var(--primary-color) 100%);
  color: #23272f;
  box-shadow: 0 4px 24px rgba(0,0,0,0.3);
  transform: translateY(-2px);
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(255, 108, 71, 0.5); }
  70% { box-shadow: 0 0 0 15px rgba(255,179,71,0); }
  100% { box-shadow: 0 0 0 0 rgba(255,179,71,0); }
}

/* ---------- Social ---------- */
.social-icons {
  margin-top: 20px;
  margin-bottom: 35px;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 15px;
}
.social-icons a{
  display:inline-block;
  transition: transform .18s ease;
}
.social-icons a:focus-visible,
.social-icons a:hover { transform: translateY(-3px); }

/* ---------- Projects section ---------- */
.projects-section {
  position: relative;
  background:
    linear-gradient(180deg, rgba(255,255,255,0.10), rgba(255,255,255,0.04)),
    var(--glass-bg);
  backdrop-filter: blur(calc(var(--glass-blur) - 6px)) saturate(var(--glass-sat));
  -webkit-backdrop-filter: blur(calc(var(--glass-blur) - 6px)) saturate(var(--glass-sat));
  border: 1px solid var(--glass-stroke);
  border-radius: 18px;
  padding: 30px;
  box-shadow: 0 6px 28px rgba(0,0,0,0.38);
  text-align: left;
  max-width: 950px;
  margin: 40px auto 0 auto;
}
.projects-section h2 {
  color: var(--primary-color);
  margin-bottom: 25px;
  text-align: center;
  font-size: 2.2em;
  letter-spacing: 2px;
  text-shadow: 0 0 8px rgba(255,179,71, 0.2);
}

/* Grid */
.projects-grid{
  display:grid;
  grid-template-columns: repeat(2, minmax(0,1fr));
  gap:18px;
}
@media (max-width: 820px){
  .projects-grid{ grid-template-columns: 1fr; }
}

/* Project card */
.project-card{
  position:relative; overflow:hidden;
  border-radius:16px;
  padding:0; /* handled by link block */
  background:
    linear-gradient(180deg, rgba(255,255,255,.10), rgba(255,255,255,.04)),
    var(--glass-bg);
  backdrop-filter: blur(calc(var(--glass-blur) - 6px)) saturate(var(--glass-sat));
  -webkit-backdrop-filter: blur(calc(var(--glass-blur) - 6px)) saturate(var(--glass-sat));
  border:1px solid rgba(255,255,255,.16);
  box-shadow: 0 10px 26px rgba(0,0,0,.32);
  transform: translateZ(0);
  transition: transform .25s ease, box-shadow .25s ease;
}

/* Full-card anchor */
.card-link{
  display:block;
  padding:18px 18px 16px;
  color:inherit; text-decoration:none;
  border-radius:inherit;
}
.card-link:focus-visible{
  outline: 3px solid color-mix(in srgb, var(--accent, #ffb347) 70%, white);
  outline-offset: 3px; border-radius: 14px;
}

/* Gradient ring */
.project-card::before{
  content:""; position:absolute; inset:-1px;
  border-radius:inherit; padding:1px; pointer-events:none;
  background:
    linear-gradient(135deg, var(--accent, #ffb347), transparent 40%),
    linear-gradient(315deg, color-mix(in srgb, var(--accent, #ffb347) 60%, #fff), transparent 55%);
  -webkit-mask: 
     linear-gradient(#000 0 0) content-box, 
     linear-gradient(#000 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude;
}

/* Sweep highlight */
.project-card::after{
  content:""; position:absolute; inset:0; border-radius:inherit; pointer-events:none;
  background: linear-gradient(120deg, rgba(255,255,255,.22), transparent 40%);
  opacity:.55; mix-blend-mode:soft-light; transform: translateY(-30%);
}

/* Lift/tilt */
.project-card:hover{
  transform: translateY(-4px) rotateX(2deg) rotateY(-2deg);
  box-shadow: 0 16px 38px rgba(0,0,0,.45);
}

/* Card header */
.project-head{
  display:flex; align-items:center; justify-content:space-between; gap:12px;
  margin-bottom:8px;
}
.project-title{
  font-size:1.08rem; font-weight:800; letter-spacing:.2px;
  color: var(--text-dark);
  text-shadow: 0 0 10px rgba(0,0,0,.3);
}
.project-open{
  display:inline-flex; align-items:center; gap:8px;
  padding:8px 12px; border-radius:999px;
  background: linear-gradient(90deg, var(--light-primary-shade), var(--primary-color));
  color:#17191f; font-weight:700; font-size:.92rem;
  box-shadow: 0 4px 16px rgba(255,179,71,.45);
  transition: transform .18s ease, box-shadow .18s ease;
}
.project-card:hover .project-open{ transform: translateY(-2px); }

/* Desc & tags */
.project-desc{ margin:6px 2px 12px; color:#d8d8d8; line-height:1.55; font-size:.98rem; }
.tags{ display:flex; flex-wrap:wrap; gap:8px; }
.tag{
  padding:6px 10px; border-radius:999px; font-size:.78rem; font-weight:700; letter-spacing:.2px;
  color:#0f1116; background: rgba(255,255,255,.85);
  box-shadow: inset 0 0 0 1px rgba(255,255,255,.55), 0 4px 10px rgba(0,0,0,.18);
}

/* Accents per card */
.card-gold  { --accent: #e0b423; }
.card-purple{ --accent: #9c27b0; }
.card-orange{ --accent: #ec5e07; }
.card-red   { --accent: #e01212; }
.card-teal  { --accent: #1dd189; }
.card-brown { --accent: #d34d05; }
.card-coral { --accent: #ff8c00; }

/* Footer */
.site-footer{
  color:#aeb0b7;
  font-size:.9rem;
  padding: 24px 0 40px;
}

/* Focus rings globally */
:focus-visible{
  outline: 3px solid color-mix(in srgb, var(--primary-color) 75%, white);
  outline-offset: 3px;
  border-radius: 10px;
}

/* Responsive & prefs */
@media (max-width:768px) {
  .welcome-gradient { font-size: 2em; }
  .projects-section h2 { font-size: 1.8em; }
  p { font-size: 1em; }
  .btn { padding: 10px 20px; font-size: 0.9em; margin: 5px; }
  .container { margin: 20px 10px; padding: 30px 15px; }
  .projects-section { padding: 20px; }
  :root{ --glass-blur: 18px; } /* perf */
}

/* Transparency fallback */
@media (prefers-reduced-transparency: reduce){
  .container, .projects-section, .project-card{
    background-color:#121317;
    backdrop-filter:none; -webkit-backdrop-filter:none;
  }
}

/* Motion-sensitive users */
@media (prefers-reduced-motion: reduce){
  *{ animation:none !important; transition:none !important; }
  .reveal{ opacity:1 !important; transform:none !important; }
}

/* Scroll reveal states */
.reveal{ opacity:0; transform: translateY(16px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in{ opacity:1; transform: translateY(0); }

/* Home page button */

.home-fab{
  position: fixed; z-index: 60;
  top: 16px; left: 16px;
  width: 44px; height: 44px;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: 999px;
  background:
    linear-gradient(180deg, rgba(255,255,255,0.12), rgba(255,255,255,0.04)),
    var(--glass-bg, rgba(255,255,255,0.06));
  backdrop-filter: blur(var(--glass-blur, 24px)) saturate(var(--glass-sat, 160%));
  -webkit-backdrop-filter: blur(var(--glass-blur, 24px)) saturate(var(--glass-sat, 160%));
  border: 1px solid var(--glass-stroke, rgba(255,255,255,0.20));
  box-shadow: var(--glass-shadow, 0 10px 40px rgba(0,0,0,0.45));
  color: var(--text-dark, #e0e0e0);
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease;
}
.home-fab i{ font-size: 1.1rem; }

.home-fab:hover{
  transform: translateY(-2px);
  box-shadow: 0 16px 48px rgba(0,0,0,.55);
}

@media (max-width: 640px){
  .home-fab{ top: 12px; left: 12px; width: 40px; height: 40px; }
}

@media (prefers-reduced-transparency: reduce){
  .home-fab{
    background-color:#121317;
    backdrop-filter:none; -webkit-backdrop-filter:none;
  }
}


/* Search button */
.search-fab{
  position: fixed; z-index: 60;
  top: 16px; right: 16px;
  width: 44px; height: 44px;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: 999px;
  background:
    linear-gradient(180deg, rgba(255,255,255,0.12), rgba(255,255,255,0.04)),
    var(--glass-bg, rgba(255,255,255,0.06));
  backdrop-filter: blur(var(--glass-blur, 24px)) saturate(var(--glass-sat, 160%));
  -webkit-backdrop-filter: blur(var(--glass-blur, 24px)) saturate(var(--glass-sat, 160%));
  border: 1px solid var(--glass-stroke, rgba(255,255,255,0.20));
  box-shadow: var(--glass-shadow, 0 10px 40px rgba(0,0,0,0.45));
  color: var(--text-dark, #e0e0e0);
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease;
}
.search-fab i{ font-size: 1.05rem; }
.search-fab:hover{ transform: translateY(-2px); box-shadow: 0 16px 48px rgba(0,0,0,.55); }

@media (max-width: 640px){
  .search-fab{ top: 12px; right: 12px; width: 40px; height: 40px; }
}

@media (prefers-reduced-transparency: reduce){
  .search-fab{
    background-color:#121317;
    backdrop-filter:none; -webkit-backdrop-filter:none;
  }
}