/* ============================================
   0. TOKENS
   ============================================ */
:root{
  --canvas:#060608;
  --surface:#0e0e12;
  --surface-2:#14141a;
  --ink:#f5f5f7;
  --mist:#9a9aa2;
  --mist-dim:#6e6e76;
  --blue:#2997ff;
  --violet:#8b5cf6;
  --signal: linear-gradient(135deg, var(--blue), var(--violet));
  --border-glass: rgba(255,255,255,0.08);
  --border-glass-strong: rgba(255,255,255,0.16);
  --glass-fill: linear-gradient(160deg, rgba(255,255,255,0.07), rgba(255,255,255,0.015));
  --shadow-glass: 0 8px 32px rgba(0,0,0,0.45), inset 0 1px 0 rgba(255,255,255,0.06);
  --shadow-glass-hover: 0 20px 48px rgba(0,0,0,0.55), inset 0 1px 0 rgba(255,255,255,0.09);

  --sp-1:4px; --sp-2:8px; --sp-3:12px; --sp-4:16px; --sp-5:24px;
  --sp-6:32px; --sp-7:48px; --sp-8:64px; --sp-9:96px; --sp-10:128px;

  --r-sm:8px; --r-md:16px; --r-lg:24px; --r-full:999px;

  --font-display:'Manrope', sans-serif;
  --font-body:'Inter', sans-serif;
  --font-mono:'JetBrains Mono', monospace;

  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --nav-h: 76px;
}

/* ============================================
   1. RESET
   ============================================ */
*,*::before,*::after{ box-sizing:border-box; margin:0; padding:0; }
html{ scroll-behavior:smooth; scroll-padding-top: var(--nav-h); }
body{
  background:var(--canvas);
  color:var(--ink);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
ul{ list-style:none; }
button{ font-family:inherit; cursor:pointer; background:none; border:none; color:inherit; }
input,textarea{ font-family:inherit; font-size:1rem; color:inherit; }

::selection{ background:var(--violet); color:#fff; }

/* Visible keyboard focus everywhere */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible{
  outline:2px solid var(--blue);
  outline-offset:3px;
  border-radius:var(--r-sm);
}

.skip-link{
  position:absolute; left:-9999px; top:0;
  background:var(--blue); color:#fff;
  padding:var(--sp-3) var(--sp-5);
  z-index:200; border-radius:0 0 var(--r-sm) 0;
  font-weight:600;
}
.skip-link:focus{ left:0; }

/* ============================================
   2. LAYOUT UTILITIES
   ============================================ */
.container{
  width:100%;
  max-width:1200px;
  margin-inline:auto;
  padding-inline: var(--sp-6);
}
.section{
  padding-block: var(--sp-10);
  position:relative;
}
.section--tight{ padding-block: var(--sp-9); }

.section-head{
  max-width:640px;
  margin-bottom: var(--sp-8);
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:var(--sp-2);
  font-family:var(--font-mono);
  font-size:0.75rem;
  letter-spacing:0.12em;
  text-transform:uppercase;
  color:var(--blue);
  margin-bottom:var(--sp-4);
}
.eyebrow::before{
  content:"";
  width:6px; height:6px;
  border-radius:50%;
  background:var(--signal);
  box-shadow:0 0 12px var(--blue);
}
h1,h2,h3{
  font-family:var(--font-display);
  font-weight:800;
  letter-spacing:-0.02em;
  color:var(--ink);
}
h2{ font-size:clamp(2rem, 3.4vw, 2.75rem); font-weight:700; }
h3{ font-size:1.25rem; font-weight:700; letter-spacing:-0.01em; }
.section-head p{ color:var(--mist); font-size:1.05rem; margin-top:var(--sp-4); }

.text-mist{ color:var(--mist); }
.mono{ font-family:var(--font-mono); }

/* Reveal-on-scroll */
.reveal{ opacity:0; transform:translateY(28px); transition:opacity 0.8s var(--ease), transform 0.8s var(--ease); }
.reveal.is-visible{ opacity:1; transform:translateY(0); }
.reveal-stagger > *{ transition-delay:calc(var(--i,0) * 90ms); }

/* ============================================
   3. GLASS COMPONENT
   ============================================ */
.glass{
  position:relative;
  background:var(--glass-fill);
  border:1px solid var(--border-glass);
  border-radius:var(--r-lg);
  backdrop-filter: blur(20px) saturate(140%);
  -webkit-backdrop-filter: blur(20px) saturate(140%);
  box-shadow:var(--shadow-glass);
  overflow:hidden;
  transition: transform 0.5s var(--ease), box-shadow 0.5s var(--ease), border-color 0.5s var(--ease);
}
.glass::after{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  opacity:0;
  background:radial-gradient(circle 220px at var(--mx,50%) var(--my,50%), rgba(255,255,255,0.14), transparent 70%);
  transition:opacity 0.4s ease;
}
.glass:hover::after{ opacity:1; }
.glass:hover{
  border-color:var(--border-glass-strong);
  box-shadow:var(--shadow-glass-hover);
}

/* ============================================
   4. BUTTONS
   ============================================ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:var(--sp-2);
  padding: 0.85rem 1.6rem;
  border-radius:var(--r-full);
  font-weight:600;
  font-size:0.95rem;
  transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease), background 0.35s var(--ease), border-color 0.35s var(--ease);
  white-space:nowrap;
}
.btn--primary{
  background:var(--signal);
  color:#fff;
  box-shadow:0 8px 24px rgba(41,151,255,0.28);
}
.btn--primary:hover{ transform:translateY(-2px); box-shadow:0 14px 32px rgba(139,92,246,0.4); }
.btn--primary:active{ transform:translateY(0); }

.btn--ghost{
  background:rgba(255,255,255,0.04);
  border:1px solid var(--border-glass-strong);
  color:var(--ink);
}
.btn--ghost:hover{ background:rgba(255,255,255,0.09); transform:translateY(-2px); }

.btn--sm{ padding:0.6rem 1.2rem; font-size:0.85rem; }

/* ============================================
   5. SCROLL PROGRESS
   ============================================ */
.scroll-progress{
  position:fixed; top:0; left:0; height:2px;
  background:var(--signal);
  width:0%;
  z-index:300;
  transition: width 0.1s linear;
}

/* ============================================
   6. HEADER / NAV
   ============================================ */
.site-header{
  position:fixed; top:0; left:0; right:0;
  z-index:100;
  display:flex; justify-content:center;
  padding-top:var(--sp-4);
  pointer-events:none;
}
.nav-pill{
  pointer-events:auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:var(--sp-7);
  width:min(920px, calc(100% - var(--sp-6)*2));
  padding: var(--sp-3) var(--sp-5);
  border-radius:var(--r-full);
  background:rgba(14,14,18,0.55);
  border:1px solid var(--border-glass);
  backdrop-filter: blur(18px) saturate(160%);
  -webkit-backdrop-filter: blur(18px) saturate(160%);
  transition: background 0.4s var(--ease), box-shadow 0.4s var(--ease);
}
.site-header.is-scrolled .nav-pill{
  background:rgba(14,14,18,0.78);
  box-shadow:0 12px 32px rgba(0,0,0,0.4);
}
.logo{
  font-family:var(--font-display);
  font-weight:800;
  font-size:1.05rem;
  letter-spacing:-0.01em;
}
.logo span{ color:var(--blue); }

.nav-links{
  display:flex; align-items:center; gap:var(--sp-6);
}
.nav-links a{
  font-size:0.9rem; font-weight:500; color:var(--mist);
  transition:color 0.3s ease;
  position:relative;
}
.nav-links a:hover, .nav-links a:focus-visible{ color:var(--ink); }
.nav-links a::after{
  content:""; position:absolute; left:0; bottom:-6px;
  width:0; height:2px; background:var(--signal);
  transition:width 0.3s var(--ease);
}
.nav-links a:hover::after{ width:100%; }

.nav-cta{ display:flex; align-items:center; gap:var(--sp-4); }

.nav-toggle{
  display:none;
  width:40px; height:40px;
  align-items:center; justify-content:center;
  border-radius:50%;
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after{
  content:""; display:block;
  width:18px; height:2px; background:var(--ink);
  position:relative; transition: transform 0.3s var(--ease), opacity 0.3s var(--ease);
}
.nav-toggle span::before{ position:absolute; top:-6px; }
.nav-toggle span::after{ position:absolute; top:6px; }
.nav-toggle[aria-expanded="true"] span{ background:transparent; }
.nav-toggle[aria-expanded="true"] span::before{ top:0; transform:rotate(45deg); }
.nav-toggle[aria-expanded="true"] span::after{ top:0; transform:rotate(-45deg); }

.mobile-menu{
  position:fixed; inset:0;
  background:rgba(6,6,8,0.92);
  backdrop-filter: blur(20px);
  z-index:90;
  display:flex; flex-direction:column;
  align-items:center; justify-content:center;
  gap:var(--sp-6);
  opacity:0; visibility:hidden;
  transition:opacity 0.35s var(--ease), visibility 0.35s var(--ease);
}
.mobile-menu.is-open{ opacity:1; visibility:visible; }
.mobile-menu a{ font-family:var(--font-display); font-size:1.6rem; font-weight:700; }

/* ============================================
   7. HERO
   ============================================ */
.hero{
  min-height:100vh;
  display:flex; align-items:center;
  padding-top:calc(var(--nav-h) + var(--sp-7));
  position:relative;
}
.aurora{
  position:absolute; inset:0; z-index:-1;
  overflow:hidden;
  pointer-events:none;
}
.aurora::before, .aurora::after{
  content:""; position:absolute;
  width:60vw; height:60vw;
  max-width:780px; max-height:780px;
  border-radius:50%;
  filter:blur(90px);
  opacity:0.35;
}
.aurora::before{
  background:var(--blue);
  top:-10%; left:-10%;
  animation: drift-a 22s ease-in-out infinite alternate;
}
.aurora::after{
  background:var(--violet);
  bottom:-15%; right:-5%;
  animation: drift-b 26s ease-in-out infinite alternate;
}
@keyframes drift-a{ from{ transform:translate(0,0) scale(1);} to{ transform:translate(6%,8%) scale(1.1);} }
@keyframes drift-b{ from{ transform:translate(0,0) scale(1);} to{ transform:translate(-8%,-6%) scale(1.15);} }

.hero-grid{
  display:grid;
  grid-template-columns: 1.3fr 0.7fr;
  gap:var(--sp-8);
  align-items:center;
}
.hero-eyebrow{ margin-bottom:var(--sp-5); }
.hero h1{
  font-size:clamp(2.75rem, 6vw, 5rem);
  line-height:1.04;
}
.hero h1 .accent{
  background:var(--signal);
  -webkit-background-clip:text; background-clip:text; color:transparent;
}
.hero-lede{
  margin-top:var(--sp-5);
  font-size:1.2rem; line-height:1.6;
  color:var(--mist);
  max-width:520px;
}
.hero-ctas{
  margin-top:var(--sp-7);
  display:flex; gap:var(--sp-4); flex-wrap:wrap;
}
.hero-meta{
  margin-top:var(--sp-8);
  display:flex; gap:var(--sp-7);
}
.hero-meta div{ font-family:var(--font-mono); font-size:0.78rem; color:var(--mist-dim); letter-spacing:0.05em; }
.hero-meta strong{ display:block; font-family:var(--font-body); font-size:1rem; color:var(--ink); font-weight:600; margin-top:4px; letter-spacing:0; }

.hero-card{
  padding:var(--sp-6);
  aspect-ratio: 4/5;
  display:flex; flex-direction:column; justify-content:space-between;
}
.hero-card .dot-row{ display:flex; gap:var(--sp-2); }
.hero-card .dot-row span{ width:10px; height:10px; border-radius:50%; }
.hero-card .dot-row span:nth-child(1){ background:#ff5f57; }
.hero-card .dot-row span:nth-child(2){ background:#febc2e; }
.hero-card .dot-row span:nth-child(3){ background:#28c840; }
.hero-card pre{
  font-family:var(--font-mono);
  font-size:0.78rem;
  line-height:1.9;
  color:var(--mist);
  white-space:pre-wrap;
}
.hero-card pre .k{ color:var(--violet); }
.hero-card pre .s{ color:#7ee0b8; }
.hero-card pre .c{ color:var(--mist-dim); }
.hero-card pre .f{ color:var(--blue); }

.scroll-cue{
  position:absolute; bottom:var(--sp-7); left:50%; transform:translateX(-50%);
  display:flex; flex-direction:column; align-items:center; gap:var(--sp-2);
  color:var(--mist-dim); font-family:var(--font-mono); font-size:0.7rem; letter-spacing:0.1em;
}
.scroll-cue .line{ width:1px; height:32px; background:linear-gradient(var(--mist-dim), transparent); animation:cue 2s ease-in-out infinite; }
@keyframes cue{ 0%,100%{ opacity:0.2; } 50%{ opacity:1; } }

/* ============================================
   8. ABOUT
   ============================================ */
.about-grid{
  display:grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap:var(--sp-9);
  align-items:start;
}
.about-portrait{
  aspect-ratio:1;
  border-radius:var(--r-lg);
  background:
    radial-gradient(circle at 30% 20%, rgba(41,151,255,0.35), transparent 55%),
    radial-gradient(circle at 75% 80%, rgba(139,92,246,0.35), transparent 55%),
    var(--surface-2);
  border:1px solid var(--border-glass);
  display:flex; align-items:center; justify-content:center;
  position:relative;
}
.about-portrait span{
  font-family:var(--font-display); font-weight:800;
  font-size:5rem; color:rgba(255,255,255,0.92);
}
.about-text p{ color:var(--mist); font-size:1.05rem; margin-bottom:var(--sp-5); max-width:560px; }
.about-text p:first-of-type{ color:var(--ink); font-size:1.15rem; }

.fact-grid{
  margin-top:var(--sp-7);
  display:grid; grid-template-columns:repeat(2,1fr);
  gap:var(--sp-5);
}
.fact{ padding:var(--sp-5); }
.fact .label{ font-family:var(--font-mono); font-size:0.7rem; letter-spacing:0.1em; color:var(--blue); text-transform:uppercase; }
.fact .value{ margin-top:var(--sp-2); font-weight:600; font-size:1.02rem; }

/* ============================================
   9. SKILLS
   ============================================ */
.skills-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:var(--sp-6);
}
.skill-card{ padding:var(--sp-6); }
.skill-card h3{ margin-bottom:var(--sp-5); display:flex; align-items:center; gap:var(--sp-3); }
.skill-card h3 .tag-dot{ width:8px; height:8px; border-radius:50%; background:var(--signal); }
.skill-row{ margin-bottom:var(--sp-5); }
.skill-row:last-child{ margin-bottom:0; }
.skill-row .skill-top{
  display:flex; justify-content:space-between; align-items:baseline;
  margin-bottom:var(--sp-2);
  font-size:0.92rem;
}
.skill-row .skill-pct{ font-family:var(--font-mono); font-size:0.8rem; color:var(--mist); }
.skill-track{
  height:6px; border-radius:var(--r-full);
  background:rgba(255,255,255,0.07);
  overflow:hidden;
}
.skill-fill{
  height:100%; width:0%;
  border-radius:var(--r-full);
  background:var(--signal);
  transition: width 1.1s var(--ease);
}

.stack-cloud{
  margin-top:var(--sp-8);
  display:flex; flex-wrap:wrap; gap:var(--sp-3);
}
.stack-pill{
  font-family:var(--font-mono); font-size:0.78rem;
  padding:var(--sp-2) var(--sp-4);
  border-radius:var(--r-full);
  border:1px solid var(--border-glass);
  color:var(--mist);
  transition: border-color 0.3s ease, color 0.3s ease, transform 0.3s ease;
}
.stack-pill:hover{ border-color:var(--blue); color:var(--ink); transform:translateY(-2px); }

/* ============================================
   10. PROJECTS
   ============================================ */
.projects-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:var(--sp-6);
}
.project-card{
  display:flex; flex-direction:column;
  transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease), border-color 0.4s var(--ease);
  transform-style:preserve-3d;
  will-change:transform;
}
.project-media{
  height:200px;
  position:relative;
  overflow:hidden;
  display:flex; align-items:center; justify-content:center;
  border-bottom:1px solid var(--border-glass);
}
.project-media .glyph{
  font-family:var(--font-display); font-weight:800; font-size:2.4rem;
  color:rgba(255,255,255,0.85);
  position:relative; z-index:1;
  transition: transform 0.5s var(--ease);
}
.project-card:hover .project-media .glyph{ transform:scale(1.08); }
.media-1{ background:linear-gradient(135deg, rgba(41,151,255,0.5), rgba(14,14,18,0.2)); }
.media-2{ background:linear-gradient(135deg, rgba(139,92,246,0.5), rgba(14,14,18,0.2)); }
.media-3{ background:linear-gradient(135deg, rgba(126,224,184,0.4), rgba(14,14,18,0.2)); }
.media-4{ background:linear-gradient(135deg, rgba(255,140,105,0.4), rgba(14,14,18,0.2)); }

.project-body{ padding:var(--sp-6); display:flex; flex-direction:column; flex:1; }
.project-body h3{ margin-bottom:var(--sp-3); }
.project-body p{ color:var(--mist); font-size:0.95rem; flex:1; }
.project-tags{ display:flex; flex-wrap:wrap; gap:var(--sp-2); margin:var(--sp-5) 0; }
.project-tags span{
  font-family:var(--font-mono); font-size:0.7rem; letter-spacing:0.04em;
  padding:0.3rem 0.65rem; border-radius:var(--r-full);
  background:rgba(255,255,255,0.05); color:var(--mist);
}
.project-links{ display:flex; gap:var(--sp-5); margin-top:var(--sp-2); }
.project-links a{
  font-size:0.88rem; font-weight:600; color:var(--ink);
  display:inline-flex; align-items:center; gap:6px;
  border-bottom:1px solid transparent;
  transition:border-color 0.3s ease, color 0.3s ease;
}
.project-links a:hover{ border-color:var(--blue); color:var(--blue); }

/* ============================================
   11. EXPERIENCE TIMELINE
   ============================================ */
.timeline{ position:relative; max-width:760px; }
.timeline::before{
  content:""; position:absolute; left:7px; top:6px; bottom:6px; width:2px;
  background:linear-gradient(var(--blue), var(--violet));
  opacity:0.5;
}
.timeline-item{
  position:relative;
  padding-left:var(--sp-8);
  padding-bottom:var(--sp-8);
}
.timeline-item:last-child{ padding-bottom:0; }
.timeline-dot{
  position:absolute; left:0; top:6px;
  width:16px; height:16px; border-radius:50%;
  background:var(--canvas);
  border:2px solid var(--blue);
  box-shadow:0 0 0 4px rgba(41,151,255,0.12);
}
.timeline-item.is-current .timeline-dot{ background:var(--signal); border-color:transparent; }
.timeline-date{
  font-family:var(--font-mono); font-size:0.78rem; color:var(--blue); letter-spacing:0.04em;
  margin-bottom:var(--sp-2);
}
.timeline-item h3{ margin-bottom:var(--sp-1); }
.timeline-role{ color:var(--mist); font-weight:500; margin-bottom:var(--sp-3); font-size:0.95rem; }
.timeline-item p.desc{ color:var(--mist); max-width:600px; }

/* ============================================
   12. TESTIMONIALS
   ============================================ */
.testimonial-wrap{ position:relative; }
.testimonial-track{
  display:flex; gap:var(--sp-6);
  overflow-x:auto;
  scroll-snap-type:x mandatory;
  padding-bottom:var(--sp-3);
  scrollbar-width:none;
}
.testimonial-track::-webkit-scrollbar{ display:none; }
.testimonial-card{
  flex:0 0 min(420px, 85vw);
  scroll-snap-align:start;
  padding:var(--sp-6);
  display:flex; flex-direction:column;
}
.quote-mark{ font-family:var(--font-display); font-size:2.5rem; color:var(--violet); line-height:1; margin-bottom:var(--sp-3); }
.testimonial-card p.quote{ color:var(--ink); font-size:1.02rem; line-height:1.7; flex:1; }
.testimonial-person{ display:flex; align-items:center; gap:var(--sp-4); margin-top:var(--sp-6); }
.avatar{
  width:44px; height:44px; border-radius:50%;
  background:var(--signal);
  display:flex; align-items:center; justify-content:center;
  font-family:var(--font-display); font-weight:700; font-size:0.95rem; color:#fff;
  flex-shrink:0;
}
.testimonial-person .name{ font-weight:600; font-size:0.92rem; }
.testimonial-person .role{ font-family:var(--font-mono); font-size:0.74rem; color:var(--mist-dim); }

.carousel-controls{ display:flex; gap:var(--sp-4); margin-top:var(--sp-6); }
.carousel-controls button{
  width:42px; height:42px; border-radius:50%;
  border:1px solid var(--border-glass-strong);
  display:flex; align-items:center; justify-content:center;
  transition: background 0.3s ease, transform 0.3s ease;
}
.carousel-controls button:hover{ background:rgba(255,255,255,0.08); transform:translateY(-1px); }

/* ============================================
   13. CONTACT
   ============================================ */
.contact-grid{
  display:grid; grid-template-columns:0.85fr 1.15fr;
  gap:var(--sp-9);
}
.contact-info p{ color:var(--mist); margin-top:var(--sp-4); max-width:420px; }
.contact-list{ margin-top:var(--sp-7); display:flex; flex-direction:column; gap:var(--sp-5); }
.contact-list .label{ font-family:var(--font-mono); font-size:0.7rem; text-transform:uppercase; letter-spacing:0.1em; color:var(--blue); }
.contact-list .value{ margin-top:var(--sp-1); font-weight:600; font-size:1.02rem; }
.contact-list a.value{ transition:color 0.3s ease; }
.contact-list a.value:hover{ color:var(--blue); }

.contact-form{ padding:var(--sp-7); }
.field{ position:relative; margin-bottom:var(--sp-6); }
.field input, .field textarea{
  width:100%;
  background:rgba(255,255,255,0.03);
  border:1px solid var(--border-glass);
  border-radius:var(--r-md);
  padding:1.1rem var(--sp-4) 0.6rem;
  transition:border-color 0.3s ease, background 0.3s ease;
}
.field textarea{ min-height:120px; resize:vertical; padding-top:1.4rem; }
.field input:focus, .field textarea:focus{ border-color:var(--blue); background:rgba(255,255,255,0.05); outline:none; }
.field label{
  position:absolute; left:var(--sp-4); top:1.05rem;
  font-size:0.95rem; color:var(--mist-dim);
  transition: transform 0.25s var(--ease), font-size 0.25s var(--ease), color 0.25s var(--ease);
  pointer-events:none;
}
.field input:focus + label,
.field input:not(:placeholder-shown) + label,
.field textarea:focus + label,
.field textarea:not(:placeholder-shown) + label{
  transform:translateY(-0.65rem);
  font-size:0.72rem;
  color:var(--blue);
}
.form-status{
  margin-top:var(--sp-4);
  font-size:0.9rem; font-family:var(--font-mono);
  min-height:1.2em;
}
.form-status.success{ color:#7ee0b8; }
.form-status.error{ color:#ff8a8a; }

/* ============================================
   14. FOOTER
   ============================================ */
.site-footer{
  border-top:1px solid var(--border-glass);
  padding-block:var(--sp-8);
}
.footer-top{
  display:flex; justify-content:space-between; align-items:flex-start;
  flex-wrap:wrap; gap:var(--sp-7);
}
.footer-brand .logo{ margin-bottom:var(--sp-3); }
.footer-brand p{ color:var(--mist-dim); max-width:280px; font-size:0.9rem; }
.footer-links{ display:flex; gap:var(--sp-8); flex-wrap:wrap; }
.footer-col h4{ font-family:var(--font-mono); font-size:0.72rem; letter-spacing:0.1em; text-transform:uppercase; color:var(--mist-dim); margin-bottom:var(--sp-4); }
.footer-col a{ display:block; color:var(--mist); font-size:0.92rem; margin-bottom:var(--sp-3); transition:color 0.3s ease; }
.footer-col a:hover{ color:var(--ink); }
.social-row{ display:flex; gap:var(--sp-3); }
.social-row a{
  width:40px; height:40px; border-radius:50%;
  border:1px solid var(--border-glass-strong);
  display:flex; align-items:center; justify-content:center;
  transition: border-color 0.3s ease, transform 0.3s ease, color 0.3s ease;
}
.social-row a:hover{ border-color:var(--blue); color:var(--blue); transform:translateY(-2px); }
.footer-bottom{
  margin-top:var(--sp-8);
  padding-top:var(--sp-6);
  border-top:1px solid var(--border-glass);
  display:flex; justify-content:space-between; align-items:center;
  font-size:0.8rem; color:var(--mist-dim); flex-wrap:wrap; gap:var(--sp-3);
}

.to-top{
  position:fixed; right:var(--sp-6); bottom:var(--sp-6);
  width:48px; height:48px; border-radius:50%;
  background:var(--surface); border:1px solid var(--border-glass-strong);
  display:flex; align-items:center; justify-content:center;
  opacity:0; visibility:hidden; transform:translateY(10px);
  transition:opacity 0.4s ease, transform 0.4s ease, visibility 0.4s ease, border-color 0.3s ease;
  z-index:80;
}
.to-top.is-visible{ opacity:1; visibility:visible; transform:translateY(0); }
.to-top:hover{ border-color:var(--blue); }

/* ============================================
   15. RESPONSIVE
   ============================================ */
@media (max-width:1024px){
  .hero-grid{ grid-template-columns:1fr; }
  .hero-card{ max-width:380px; }
  .about-grid{ grid-template-columns:1fr; }
  .about-portrait{ max-width:320px; }
  .contact-grid{ grid-template-columns:1fr; }
  .skills-grid{ grid-template-columns:1fr; }
}
@media (max-width:768px){
  :root{ --nav-h:64px; }
  .nav-links{ display:none; }
  .nav-cta .btn--ghost{ display:none; }
  .nav-toggle{ display:flex; }
  .section{ padding-block:var(--sp-9); }
  .projects-grid{ grid-template-columns:1fr; }
  .fact-grid{ grid-template-columns:1fr 1fr; }
  .footer-top{ flex-direction:column; }
  .hero-meta{ flex-wrap:wrap; gap:var(--sp-5); }
}
@media (max-width:480px){
  .container{ padding-inline:var(--sp-4); }
  .hero h1{ font-size:2.4rem; }
  .hero-card{ display:none; }
  .contact-form{ padding:var(--sp-5); }
}

/* ============================================
   16. ACCESSIBILITY: REDUCED MOTION
   ============================================ */
@media (prefers-reduced-motion: reduce){
  *{ animation-duration:0.001ms !important; animation-iteration-count:1 !important; transition-duration:0.2s !important; scroll-behavior:auto !important; }
  .aurora::before, .aurora::after{ animation:none; }
}