/* ══════════════════════════════════════════════════
   HERO
══════════════════════════════════════════════════ */
#hero {
  min-height: 100vh; min-height: 100svh; display: flex; align-items: center;
  padding: calc(var(--nav-h) + 16px) 0 84px;
  position: relative;
}
#hero::before {
  content: ''; position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(ellipse 32% 32% at var(--mouse-x, -50%) var(--mouse-y, -50%), rgba(217,119,6,.10) 0%, transparent 65%),
    radial-gradient(ellipse 60% 50% at 10% 55%, rgba(217,119,6,.07) 0%, transparent 70%),
    radial-gradient(ellipse 50% 40% at 85% 20%, rgba(190,24,93,.05) 0%, transparent 60%),
    radial-gradient(ellipse 40% 40% at 65% 75%, rgba(217,119,6,.04) 0%, transparent 50%);
}
#hero::after {
  content: ''; position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(var(--hero-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--hero-grid) 1px, transparent 1px);
  background-size: 64px 64px;
}
.hero-inner {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.hero-badge {
  display: inline-flex; align-items: center; gap: 9px;
  background: var(--accent-bg); border: 1px solid var(--accent-lt);
  color: var(--accent-dk); padding: 8px 18px; border-radius: var(--r-full);
  font-size: 13px; font-weight: 600; margin-bottom: 18px;
  animation: fadeDown .8s var(--ease) .15s both;
}
.badge-dot { width: 7px; height: 7px; background: #22C55E; border-radius: 50%; animation: ping 2s ease-in-out 4; }
@keyframes ping { 0%,100%{opacity:1;transform:scale(1)} 50%{opacity:.5;transform:scale(.8)} }

.hero-h1 {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: clamp(3.2rem, 7.5vw, 7rem);
  font-weight: 900; line-height: 1.0; letter-spacing: -.05em;
  color: var(--text); margin-bottom: 18px; max-width: 880px;
  animation: fadeUp .9s var(--ease) .3s both;
}
.hero-h1 .italic  { font-style: italic; color: var(--accent); }
.hero-h1 .mark { position: relative; display: inline-block; }
.hero-h1 .mark::after {
  content: ''; position: absolute; left: 0; right: 0; bottom: 6px; height: 8px;
  background: var(--accent-lt); z-index: -1; border-radius: var(--r-full);
  transform: scaleX(0); transform-origin: left;
  animation: wipe 1s var(--ease-out) 1.3s both;
}
@keyframes wipe { to { transform: scaleX(1); } }

.hero-p {
  font-size: clamp(17px, 2vw, 20px); color: var(--text-2); max-width: 580px;
  line-height: 1.68; margin-bottom: 26px;
  animation: fadeUp .9s var(--ease) .5s both;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; animation: fadeUp .9s var(--ease) .65s both; }
.hero-socials { display: flex; gap: 10px; margin-top: 20px; animation: fadeUp .9s var(--ease) .85s both; }
.hero-socials a {
  width: 42px; height: 42px; border: 1px solid var(--border);
  border-radius: var(--r-full); display: flex; align-items: center;
  justify-content: center; color: var(--text-2); font-size: 16px;
  transition: border-color .25s, color .25s, background .25s, transform .3s var(--ease-spring);
}
.hero-socials a:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-bg); transform: translateY(-4px); }

.hero-meta {
  width: min(100%, 760px);
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-top: 22px;
}
.hero-stats {
  display: grid; grid-template-columns: repeat(3,1fr);
  border-radius: var(--r-xl); overflow: hidden; border: 1px solid var(--border);
  flex: 1 1 500px;
  max-width: 470px;
  animation: fadeUp .9s var(--ease) 1.05s both;
}
.hero-stat { background: var(--bg-card); padding: 16px 12px; text-align: center; border-right: 1px solid var(--border); transition: background .3s; }
.hero-stat:last-child { border-right: none; }
.stat-n { font-family: 'Playfair Display', serif; font-size: 27px; font-weight: 900; letter-spacing: -.04em; line-height: 1; color: var(--text); }
.stat-l { font-size: 9px; color: var(--text-3); font-weight: 600; letter-spacing: .45px; text-transform: uppercase; margin-top: 4px; }

.scroll-cue {
  flex: 0 0 auto;
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  color: var(--text-3); font-size: 11px; letter-spacing: 1.5px; text-transform: uppercase;
  animation: fadeUp 1s var(--ease) 1.5s both;
}
.scroll-pill { width: 22px; height: 34px; border: 2px solid var(--border-2); border-radius: var(--r-full); position: relative; overflow: hidden; }
.scroll-pill::after { content: ''; width: 4px; height: 7px; background: var(--accent); border-radius: var(--r-full); position: absolute; top: 5px; left: 50%; transform: translateX(-50%); animation: scrollDot 1.8s ease-in-out infinite; }
@keyframes scrollDot { 0%{opacity:1;top:5px} 100%{opacity:0;top:24px} }
@keyframes fadeDown { from{opacity:0;transform:translateY(-20px)} to{opacity:1;transform:none} }
@keyframes fadeUp   { from{opacity:0;transform:translateY(32px)}   to{opacity:1;transform:none} }

/* ══════════════════════════════════════════════════
   ABOUT
══════════════════════════════════════════════════ */
#about {
  scroll-margin-top: 36px;
  display: block;
  min-height: auto;
  padding: 64px 0 120px;
}
.about-grid { display: grid; grid-template-columns: 1fr 1.15fr; gap: 80px; align-items: center; }
.about-visual { position: relative; }
.about-frame {
  width: 100%; max-width: 540px; aspect-ratio: 4/5; border-radius: var(--r-xl);
  background: linear-gradient(145deg, var(--accent-bg) 0%, var(--rose-bg) 100%);
  border: 1px solid var(--border); position: relative; overflow: hidden;
  display: flex; align-items: center; justify-content: center;
  transition: background .35s;
}
.about-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 22%;
}
.about-deco-box { position: absolute; top: -20px; left: -20px; width: 72px; height: 72px; border: 3px solid var(--accent-lt); border-radius: var(--r-lg); z-index: -1; }
.about-float-card { position: absolute; bottom: -18px; right: -18px; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--r-lg); padding: 14px 18px; box-shadow: var(--shadow-lg); display: flex; align-items: center; gap: 12px; transition: background .35s, border-color .35s; }
.float-icon { width: 40px; height: 40px; background: var(--accent-bg); border-radius: var(--r-md); display: flex; align-items: center; justify-content: center; color: var(--accent); font-size: 18px; flex-shrink: 0; }
.float-text { font-size: 13px; line-height: 1.4; }
.float-text strong { display: block; font-weight: 700; color: var(--text); font-size: 14px; }
.float-text span   { color: var(--text-3); font-size: 12px; }
.about-emoji { position: absolute; bottom: 50px; left: -28px; background: var(--rose-bg); border: 1px solid var(--rose-lt); border-radius: var(--r-full); padding: 10px 14px; font-size: 20px; }
.about-text p { font-size: 16px; color: var(--text-2); line-height: 1.6; margin-bottom: 10px; }
.about-vals { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-top: 16px; }
.val-item { display: flex; align-items: center; gap: 10px; font-size: 14px; font-weight: 500; color: var(--text); }
.val-icon { width: 32px; height: 32px; border-radius: var(--r-sm); flex-shrink: 0; display: flex; align-items: center; justify-content: center; background: var(--accent-bg); color: var(--accent); font-size: 14px; }
.about-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 14px; }

/* ══════════════════════════════════════════════════
   SKILLS
══════════════════════════════════════════════════ */
#skills {
  min-height: calc(100svh - var(--nav-h));
  padding: 104px 0 120px;
}
.skills-top { display: flex; justify-content: space-between; align-items: flex-end; margin-bottom: 56px; gap: 32px; flex-wrap: wrap; }

.skills-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(138px, 1fr)); gap: 14px; }
.skill-card {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--r-lg);
  padding: 20px 16px; display: flex; flex-direction: column; align-items: center; gap: 10px;
  transition: transform .35s var(--ease-spring), box-shadow .3s var(--ease), border-color .25s, background .35s;
  position: relative; overflow: visible;
}
.skill-tooltip {
  position: absolute; bottom: calc(100% + 8px); left: 50%;
  transform: translateX(-50%) translateY(6px);
  background: var(--text); color: var(--bg); font-size: 11px; font-weight: 700;
  padding: 4px 10px; border-radius: var(--r-full); white-space: nowrap;
  opacity: 0; pointer-events: none; z-index: 10;
  transition: opacity .2s var(--ease), transform .2s var(--ease);
}
.skill-card:hover .skill-tooltip { opacity: 1; transform: translateX(-50%) translateY(0); }
.skill-card::after { content: ''; position: absolute; inset: 0; background: linear-gradient(135deg, var(--accent-bg) 0%, transparent 55%); opacity: 0; transition: opacity .3s var(--ease); }
.skill-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: var(--accent-lt); }
.skill-card:hover::after { opacity: 1; }
.sk-icon { width: 52px; height: 52px; border-radius: var(--r-md); display: flex; align-items: center; justify-content: center; position: relative; z-index: 1; overflow: hidden; transition: background .35s; }
.sk-icon img { width: 32px; height: 32px; object-fit: contain; }
/* Invert dark icons in dark mode (e.g. Next.js, Express, GitHub) */
[data-theme="dark"] .sk-icon img.dark-invert { filter: invert(1) brightness(1.4); }
.sk-name { font-size: 13px; font-weight: 600; color: var(--text); text-align: center; z-index: 1; }
.sk-bar { width: 100%; height: 3px; background: var(--bg-alt); border-radius: var(--r-full); overflow: hidden; z-index: 1; }
.sk-fill { height: 100%; background: linear-gradient(90deg, var(--accent), var(--rose)); border-radius: var(--r-full); width: 0%; transition: width 1.3s cubic-bezier(.4,0,.2,1); }
.skill-card[data-cat="lang"]      .sk-fill { background: linear-gradient(90deg, #60A5FA, #818CF8); }
.skill-card[data-cat="framework"] .sk-fill { background: linear-gradient(90deg, #34D399, #10B981); }

/* ══════════════════════════════════════════════════
   PROJECTS
══════════════════════════════════════════════════ */
#projects {
  scroll-margin-top: 28px;
}

.projects-top { display: flex; justify-content: space-between; align-items: flex-end; margin-bottom: 44px; gap: 24px; flex-wrap: wrap; }
.proj-top-right { display: flex; flex-direction: column; align-items: flex-end; gap: 8px; }
.proj-count { font-size: 12px; color: var(--text-3); font-family: 'JetBrains Mono', monospace; }
.proj-empty {
  display: none; flex-direction: column; align-items: center; justify-content: center;
  gap: 12px; padding: 64px 24px; color: var(--text-3); text-align: center;
}
.proj-empty i { font-size: 32px; opacity: .4; }
.proj-empty p { font-size: 15px; }

.projects-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.p-card {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--r-xl);
  overflow: hidden; position: relative;
  transition: transform .4s var(--ease-spring), box-shadow .35s var(--ease), border-color .3s, background .35s;
}
.p-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); border-color: transparent; }
.p-card-btn {
  position: absolute; inset: 0; z-index: 0;
  background: transparent; border: none; cursor: pointer;
  border-radius: var(--r-xl);
}
.p-card--large { grid-column: span 2; }
.p-thumb { aspect-ratio: 16/10; position: relative; overflow: hidden; }
.p-card--small .p-thumb { aspect-ratio: 16/11; }
.p-card--large .p-thumb { aspect-ratio: 21/9; }
.p-thumb-bg { width: 100%; height: 100%; display: flex; align-items: center; justify-content: center; font-size: 52px; transition: transform .5s var(--ease); }
.p-thumb-ss { font-size: 0; }
.p-thumb-ss img { width: 100%; height: 100%; object-fit: cover; object-position: top; display: block; }
.p-thumb-frame {
  --frame-scale: .34;
  position: relative;
  width: 100%;
  height: 100%;
  background: linear-gradient(180deg, rgba(255,255,255,.88), rgba(255,255,255,.98));
  overflow: hidden;
}
.p-thumb-frame iframe {
  position: absolute;
  inset: 0;
  width: calc(100% / var(--frame-scale));
  height: calc(100% / var(--frame-scale));
  border: none;
  transform: scale(var(--frame-scale));
  transform-origin: top left;
  pointer-events: none;
  transition: transform .5s var(--ease), filter .3s var(--ease);
}
.p-card--small .p-thumb-frame { --frame-scale: .31; }
.p-card--large .p-thumb-frame { --frame-scale: .44; }
.p-card:hover .p-thumb-bg { transform: scale(1.07); }
.p-card:hover .p-thumb-frame iframe { filter: saturate(1.02); }
.p-glass { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; gap: 10px; opacity: 0; transition: opacity .3s var(--ease); background: rgba(0,0,0,.6); backdrop-filter: blur(6px); }
.p-card:hover .p-glass { opacity: 1; }
.p-glass-btn { padding: 9px 18px; border-radius: var(--r-full); font-size: 13px; font-weight: 600; display: flex; align-items: center; gap: 6px; cursor: pointer; transition: transform .25s var(--ease-spring); border: none; }
.p-glass-btn { text-decoration: none; }
.p-glass-btn:hover { transform: scale(1.07); }
.p-glass-btn.light { background: #fff; color: #1C1917; }
.p-glass-btn.dark  { background: rgba(255,255,255,.15); color: #fff; border: 1px solid rgba(255,255,255,.25); }
.p-body { padding: 22px 22px 18px; }
.p-card--small .p-body { padding: 18px 18px 16px; }
.p-card--large .p-body { padding: 24px 24px 20px; }
.p-tags { display: flex; flex-wrap: wrap; gap: 5px; margin-bottom: 12px; }
.p-title { font-family: 'Playfair Display', serif; font-size: 19px; font-weight: 700; color: var(--text); margin-bottom: 8px; letter-spacing: -.3px; }
.p-card--small .p-title { font-size: 17px; }
.p-card--large .p-title { font-size: 23px; }
.p-desc { font-size: 14px; color: var(--text-2); line-height: 1.7; }
.p-card--small .p-desc { font-size: 13px; line-height: 1.6; }
.p-foot { display: flex; align-items: center; justify-content: space-between; margin-top: 18px; padding-top: 14px; border-top: 1px solid var(--border); }
.p-links { display: flex; gap: 7px; }
.p-link { width: 30px; height: 30px; border: 1px solid var(--border); border-radius: var(--r-full); display: flex; align-items: center; justify-content: center; color: var(--text-2); font-size: 12px; position: relative; z-index: 1; transition: border-color .2s, color .2s, background .2s; }
.p-link:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-bg); }
.p-year { font-size: 12px; color: var(--text-3); font-weight: 500; font-family: 'JetBrains Mono', monospace; }

/* ══════════════════════════════════════════════════
   EXPERIENCE
══════════════════════════════════════════════════ */
#experience {
  scroll-margin-top: 36px;
  min-height: calc(100svh - var(--nav-h));
  display: flex;
  align-items: center;
}

#experience > .container {
  width: 100%;
}

.exp-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; }
.timeline { position: relative; }
.timeline::before {
  content: ''; position: absolute; left: 20px; top: 0; width: 1px;
  background: var(--border); height: 0%;
  transition: height 1.6s cubic-bezier(.4,0,.2,1);
}
.timeline.animated::before { height: 100%; }
.tl-item { padding: 0 0 36px 56px; position: relative; }
.tl-item:last-child { padding-bottom: 0; }
.tl-dot { position: absolute; left: 12px; top: 5px; width: 17px; height: 17px; border-radius: 50%; background: var(--bg-alt); border: 2px solid var(--border); transition: background .25s, border-color .25s, box-shadow .25s; }
.tl-item:hover .tl-dot { background: var(--accent); border-color: var(--accent); box-shadow: 0 0 0 5px var(--accent-bg); }
.tl-date { font-family: 'JetBrains Mono', monospace; font-size: 12px; font-weight: 500; color: var(--accent-text); letter-spacing: .5px; text-transform: uppercase; margin-bottom: 5px; }
.tl-role { font-size: 16px; font-weight: 700; color: var(--text); margin-bottom: 3px; }
.tl-company { font-size: 14px; color: var(--text-2); margin-bottom: 10px; display: flex; align-items: center; gap: 6px; }
.tl-badge { display: inline-block; padding: 2px 9px; border-radius: var(--r-full); font-size: 11px; font-weight: 700; letter-spacing: .3px; }
.tl-badge.current { background: rgba(34,197,94,.12); color: #16A34A; border: 1px solid rgba(34,197,94,.2); }
[data-theme="dark"] .tl-badge.current { background: rgba(34,197,94,.15); color: #4ADE80; }
.tl-desc { font-size: 14px; color: var(--text-2); line-height: 1.75; }

.edu-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--r-lg); padding: 22px; margin-bottom: 14px; transition: border-color .25s, box-shadow .25s, background .35s; }
.edu-card:hover { border-color: var(--accent-lt); box-shadow: var(--shadow-md); }
.edu-icon { width: 42px; height: 42px; border-radius: var(--r-md); margin-bottom: 14px; display: flex; align-items: center; justify-content: center; font-size: 20px; }
.edu-degree { font-size: 15px; font-weight: 700; color: var(--text); margin-bottom: 3px; }
.edu-school { font-size: 13px; color: var(--text-2); margin-bottom: 10px; }
.edu-yr { display: inline-block; padding: 3px 10px; border-radius: var(--r-full); background: var(--bg-alt); font-size: 12px; color: var(--text-3); font-family: 'JetBrains Mono', monospace; }

/* ══════════════════════════════════════════════════
   CONTACT
══════════════════════════════════════════════════ */
#contact { background: var(--surface-dk); border-top: 1px solid rgba(217,119,6,.25); transition: background .35s; }
#contact .eyebrow       { color: var(--accent-lt); }
#contact .eyebrow::before { background: var(--accent-lt); }
#contact .section-title { color: #fff; }
#contact .section-sub   { color: rgba(255,255,255,.75); }

.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: start; }
.c-item { display: flex; gap: 14px; margin-bottom: 22px; color: rgba(255,255,255,.65); }
.c-icon { width: 42px; height: 42px; border-radius: var(--r-md); flex-shrink: 0; display: flex; align-items: center; justify-content: center; background: rgba(255,255,255,.08); color: var(--accent-lt); font-size: 16px; }
.c-text { font-size: 14px; }
.c-text strong { display: block; color: #fff; font-weight: 600; margin-bottom: 2px; }
.c-text a { color: rgba(255,255,255,.65); transition: color .2s; }
.c-text a:hover { color: var(--accent-lt); }
.c-socials { display: flex; gap: 10px; margin-top: 36px; }
.c-soc { width: 42px; height: 42px; border: 1px solid rgba(255,255,255,.15); border-radius: var(--r-full); display: flex; align-items: center; justify-content: center; color: rgba(255,255,255,.5); font-size: 16px; transition: border-color .25s, color .25s, background .25s, transform .3s var(--ease-spring); }
.c-soc:hover { border-color: var(--accent-lt); color: var(--accent-lt); background: rgba(255,255,255,.07); transform: translateY(-4px); }

.c-form { background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.1); border-radius: var(--r-xl); padding: 34px; }
.f-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.f-group { margin-bottom: 18px; }
.f-label { display: block; font-size: 13px; font-weight: 600; color: rgba(255,255,255,.75); margin-bottom: 7px; }
.f-input { width: 100%; background: rgba(255,255,255,.07); border: 1px solid rgba(255,255,255,.12); border-radius: var(--r-md); padding: 12px 16px; font-size: 15px; font-family: 'Inter', sans-serif; color: #fff; outline: none; transition: border-color .2s, background .2s, box-shadow .2s; }
.f-input::placeholder { color: rgba(255,255,255,.5); }
.f-input:focus { border-color: var(--accent-lt); background: rgba(255,255,255,.1); box-shadow: 0 0 0 3px rgba(253,230,138,.14); }
textarea.f-input { min-height: 116px; resize: vertical; }
.f-btn { width: 100%; padding: 14px; background: var(--accent); color: #fff; border: none; border-radius: var(--r-full); font-size: 15px; font-weight: 600; cursor: pointer; display: flex; align-items: center; justify-content: center; gap: 8px; transition: background .2s, transform .3s var(--ease-spring), box-shadow .2s; }
.f-btn:hover { background: var(--accent-dk); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(217,119,6,.4); }
.f-feedback { margin-top: 12px; font-size: 14px; padding: 12px 16px; border-radius: var(--r-md); display: none; }
.f-feedback.ok  { display:block; background:rgba(34,197,94,.13); color:#86EFAC; border:1px solid rgba(34,197,94,.2); }
.f-feedback.err { display:block; background:rgba(239,68,68,.13);  color:#FCA5A5; border:1px solid rgba(239,68,68,.2); }