/* Portfolio — Light & Clean */
:root{
  --bg: #ffffff;
  --ink: #141414;
  --muted: #5e6368;
  --line: #e8e8e3;
  --line-strong: #d6d6d1;
  --accent: #115e59;
  --accent-hover: #0e4f4b;
  --accent-soft: #e6f0ef;
  --card: #f7f7f5;
  --radius-lg: 16px;
  --radius-md: 10px;
  --radius-sm: 6px;
  --max: 1120px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family: "DM Sans", system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height:1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
a{color:inherit}
img{max-width:100%; display:block}

.container{
  width:min(calc(100% - 32px), var(--max));
  margin-inline:auto;
}

/* Header */
.site-header{
  position:sticky; top:0; z-index:50;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(10px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex; align-items:center; justify-content:space-between;
  height:64px;
  gap:24px;
}
.logo{
  font-family: "Bricolage Grotesque", sans-serif;
  font-weight:700; font-size:22px; letter-spacing:-0.02em;
  text-decoration:none;
}
.logo-dot{color: var(--accent)}
.nav{
  display:flex; gap:28px; font-size:14px; font-weight:500;
}
.nav a{
  text-decoration:none; color: var(--muted);
  position:relative; padding:4px 0;
}
.nav a:hover{color:var(--ink)}
.nav a::after{
  content:""; position:absolute; left:0; bottom:-4px; width:0; height:1.5px;
  background:var(--ink); transition: width .18s ease;
}
.nav a:hover::after{width:100%}

.header-actions{display:flex; align-items:center; gap:12px}
.menu-toggle{display:none; width:40px; height:40px; border:1px solid var(--line); background:#fff; border-radius:8px; flex-direction:column; align-items:center; justify-content:center; gap:5px; cursor:pointer}
.menu-toggle span{display:block; width:18px; height:1.8px; background:var(--ink); border-radius:2px}
.mobile-nav{
  border-top:1px solid var(--line);
  padding:12px 16px 16px;
  display:flex; flex-direction:column; gap:10px;
  background:#fff;
}
.mobile-nav a{ text-decoration:none; padding:10px 12px; border-radius:8px; background: var(--card); font-weight:500}

/* Buttons */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  font-weight:600; font-size:14px; letter-spacing:-0.01em;
  padding:11px 18px; border-radius:999px; text-decoration:none;
  border:1px solid transparent; cursor:pointer; transition: .15s ease;
  white-space:nowrap;
}
.btn-dark{background: var(--ink); color:#fff; border-color: var(--ink)}
.btn-dark:hover{background:#000}
.btn-small{padding:9px 14px; font-size:13px}
.btn-ghost{background:#fff; border-color: var(--line-strong); color:var(--ink)}
.btn-ghost:hover{border-color: var(--ink)}
.btn-full{width:100%}

/* Hero */
.hero{padding: 36px 0 24px; border-bottom:1px solid var(--line)}
.hero-grid{
  display:grid; grid-template-columns: 1.15fr .85fr; gap:48px; align-items:start;
}
.hero-meta{
  display:flex; flex-wrap:wrap; gap:10px 16px; align-items:center;
  font-size:13px; color: var(--muted); margin-bottom:18px;
  font-family: "Fragment Mono", monospace;
}
.availability{
  display:inline-flex; align-items:center; gap:8px;
  background: var(--card); border:1px solid var(--line); padding:6px 10px; border-radius:999px;
  color: var(--ink); font-family: "DM Sans", sans-serif; font-weight:500; font-size:12.5px;
}
.dot{width:7px; height:7px; background:#16a34a; border-radius:50%; box-shadow: 0 0 0 4px rgba(22,163,74,0.15)}
.location{font-size:12.5px}
.hero-title{
  font-family: "Bricolage Grotesque", sans-serif;
  font-size: clamp(32px, 5vw, 54px);
  line-height:0.95; letter-spacing:-0.04em; margin:0;
  font-weight:700;
}
.hero-line{display:block}
.hero-line.muted{color: #9aa0a6; font-weight:500}
.hero-desc{
  margin:18px 0 0; max-width: 56ch; font-size:16px; color: var(--muted); line-height:1.7;
}
.hero-desc strong{color:var(--ink); font-weight:600}
.hero-ctas{display:flex; gap:12px; margin-top:22px; flex-wrap:wrap}
.hero-stats{
  display:flex; gap:28px; margin-top:28px; padding-top:22px; border-top:1px solid var(--line);
}
.stat{display:flex; flex-direction:column; gap:2px}
.stat-num{font-family: "Bricolage Grotesque", sans-serif; font-weight:700; font-size:22px; line-height:1; letter-spacing:-0.03em}
.stat-label{font-size:12px; color: var(--muted); font-weight:500}

.hero-visual{display:flex; flex-direction:column; gap:14px; padding-top:8px}
.portrait-card{
  border:1px solid var(--line); border-radius: var(--radius-lg);
  overflow:hidden; background: var(--card);
}
.portrait-img{
  aspect-ratio: 1 / 1;
  background: linear-gradient(160deg, #d8e8e6 0%, #f0e9df 55%, #e8eef0 100%);
  display:grid; place-items:center;
  border-bottom:1px solid var(--line);
  position:relative;
}
.portrait-img img{
  width:100%;
  height:100%;
  object-fit:cover;
}
.portrait-initials{
  font-family: "Bricolage Grotesque", sans-serif;
  font-size:64px; font-weight:700; letter-spacing:-0.05em; color: rgba(20,20,20,0.9);
}
.portrait-info{
  display:flex; justify-content:space-between; align-items:center;
  padding:14px 16px; background:#fff;
}
.portrait-name{margin:0; font-weight:600; font-size:14px}
.portrait-role{margin:2px 0 0; font-size:12.5px; color:var(--muted)}
.portrait-links{display:flex; gap:8px}
.portrait-links a{
  width:32px; height:32px; display:grid; place-items:center;
  border:1px solid var(--line); border-radius:999px; background:#fff; color: var(--ink);
}
.portrait-links a:hover{border-color: var(--ink)}
.hero-contact-strip{
  display:flex; flex-wrap:wrap; gap:8px; align-items:center; justify-content:center;
  font-size:12px; color: var(--muted);
  border:1px solid var(--line); background:#fff; padding:9px 12px; border-radius:999px;
}
.hero-contact-strip a{color: var(--ink); text-decoration:none; font-weight:500}
.hero-contact-strip a:hover{text-decoration:underline; text-underline-offset:3px}

/* Sections */
.section{padding: 48px 0; border-bottom:1px solid var(--line)}
.section-header{
  display:flex; align-items:center; justify-content:space-between; gap:16px;
  margin-bottom:28px; flex-wrap:wrap;
}
.section-index{
  font-family: "Fragment Mono", monospace; font-size:11px; letter-spacing:0.08em;
  text-transform:uppercase; color: var(--muted);
  border:1px solid var(--line); padding:6px 10px; border-radius:999px; background:#fff;
}
.section-link{font-size:13px; font-weight:600; text-decoration:none; border-bottom:1px solid var(--ink); padding-bottom:2px}
.section-title{
  font-family: "Bricolage Grotesque", sans-serif;
  font-size: clamp(26px, 3.2vw, 36px); line-height:1.05; letter-spacing:-0.03em; margin:0;
  font-weight:700;
}
.section-title em{font-style:normal; color: var(--accent); font-weight:700}

/* About */
.about-grid{
  display:grid; grid-template-columns: 0.95fr 1.05fr; gap:40px; align-items:start;
}
.about-text{font-size:15px; color: var(--muted)}
.about-text p{margin:0 0 14px}
.about-list{margin:16px 0 0; padding-left:18px; color: var(--ink)}
.about-list li{margin:6px 0}
.about-list li::marker{color: var(--accent)}

/* Projects */
.project-list{display:flex; flex-direction:column; gap:18px}
.project{
  display:grid; grid-template-columns: 1.05fr 0.95fr;
  border:1px solid var(--line); border-radius: var(--radius-lg); overflow:hidden;
  background:#fff;
}
.project-media{background: var(--card); padding:14px; display:grid; place-items:center; border-right:1px solid var(--line)}
.media-placeholder{
  width:100%; aspect-ratio: 16 / 10.2; border-radius: 10px;
  display:grid; place-items:center; border:1px solid rgba(0,0,0,0.08);
  font-family: "Fragment Mono", monospace; font-size:12px; color: rgba(0,0,0,0.55);
}
.ph-1{background: linear-gradient(135deg, #e8f0ef 0%, #dbe7e5 100%)}
.ph-2{background: linear-gradient(135deg, #f3ede3 0%, #e8e0d1 100%)}
.ph-3{background: linear-gradient(135deg, #eef2ff 0%, #e0e7ff 100%)}
.project-body{padding:22px 22px 18px; display:flex; flex-direction:column; gap:10px}
.project-top{display:flex; justify-content:space-between; gap:12px; align-items:baseline}
.project-top h3{margin:0; font-size:17px; letter-spacing:-0.02em; font-weight:600}
.project-year{font-family:"Fragment Mono", monospace; font-size:11px; color:var(--muted); border:1px solid var(--line); padding:4px 8px; border-radius:999px; background: var(--card)}
.project-desc{margin:0; font-size:14px; color: var(--muted); line-height:1.6}
.tags{display:flex; flex-wrap:wrap; gap:6px; margin-top:2px}
.tags span{font-size:11px; font-weight:500; letter-spacing:0.02em; border:1px solid var(--line); padding:5px 8px; border-radius:999px; background: #fff; color: var(--ink)}
.project-links{display:flex; gap:16px; margin-top:auto; padding-top:10px; border-top:1px solid var(--line)}
.text-link{font-size:13px; font-weight:600; text-decoration:none; color: var(--ink)}
.text-link.muted{color: var(--muted)}
.text-link:hover{text-decoration:underline; text-underline-offset:3px}
.projects-foot{margin-top:16px; font-size:13px; color: var(--muted); text-align:center}
.projects-foot a{color: var(--ink); font-weight:600}

/* Skills */
.skills-grid{
  display:grid; grid-template-columns: repeat(3, 1fr); gap:16px;
}
.skill-group{
  border:1px solid var(--line); border-radius: var(--radius-md); padding:20px;
  background:#fff;
}
.skill-group h3{
  margin:0 0 14px; font-size:13px; font-weight:700; letter-spacing:0.06em; text-transform:uppercase;
  color: var(--ink); padding-bottom:12px; border-bottom:1px solid var(--line);
}
.skill-group ul{margin:0; padding:0; list-style:none; display:flex; flex-direction:column; gap:8px}
.skill-group li{font-size:13.5px; color: var(--muted); padding-left:14px; position:relative}
.skill-group li::before{
  content:""; position:absolute; left:0; top:9px; width:6px; height:6px; border-radius:50%;
  background: var(--accent);
}

/* Experience */
.timeline{border:1px solid var(--line); border-radius: var(--radius-lg); overflow:hidden; background:#fff}
.timeline-item{
  display:grid; grid-template-columns: 180px 1fr; gap:24px;
  padding:22px 24px; border-bottom:1px solid var(--line);
}
.timeline-item:last-child{border-bottom:none}
.tl-date{font-family:"Fragment Mono", monospace; font-size:12px; color: var(--muted); padding-top:2px}
.tl-head{display:flex; align-items:center; gap:10px}
.tl-head h3{margin:0; font-size:15px; font-weight:600; letter-spacing:-0.01em}
.tl-org{margin:2px 0 8px; font-size:13px; color: var(--accent); font-weight:600}
.co-logo{width:28px; height:28px; border-radius:6px; border:1px solid var(--line); background:#fff; object-fit:contain; padding:2px; flex-shrink:0}
.project-logo{width:28px; height:28px; border-radius:6px; border:1px solid var(--line); background:#fff; object-fit:contain; padding:3px; flex-shrink:0}
.edu-head{display:flex; align-items:center; gap:10px; margin-bottom:2px}
.edu-head h3{margin:0; font-size:15px; font-weight:600; letter-spacing:-0.01em}
.tl-content h3{margin:0; font-size:15px; font-weight:600; letter-spacing:-0.01em}
.tl-content p:last-child{margin:0; font-size:14px; color: var(--muted); line-height:1.6}
.tl-bullets{margin:10px 0 0; padding-left:16px; display:flex; flex-direction:column; gap:6px}
.tl-bullets li{font-size:13.5px; color: var(--muted); line-height:1.6}
.tl-bullets li::marker{color: var(--accent)}
.project-metrics{display:flex; flex-wrap:wrap; gap:6px; margin-top:6px}
.project-metrics span{font-size:11px; font-weight:600; color: var(--accent); background: var(--accent-soft); border:1px solid #d1e3e1; padding:5px 8px; border-radius:999px}
.media-placeholder{display:flex; align-items:center; gap:8px; justify-content:center}
.edu-grid{display:grid; grid-template-columns:1fr 1fr; gap:16px}
.edu-card{border:1px solid var(--line); border-radius: var(--radius-md); padding:18px; background:#fff}
.edu-year{font-family:"Fragment Mono", monospace; font-size:11px; color: var(--muted); margin-bottom:6px}
.edu-card h3{margin:0; font-size:15px; font-weight:600; letter-spacing:-0.01em}
.edu-school{margin:4px 0 0; font-size:13px; color: var(--muted)}

/* Blogs */
.blogs-intro{margin:0 0 20px; color: var(--muted); font-size:14px; max-width:62ch}
.blogs-grid{display:grid; grid-template-columns: repeat(3, 1fr); gap:16px}
.blog-card{border:1px solid var(--line); border-radius: var(--radius-md); padding:18px; background:#fff; display:flex; flex-direction:column; gap:10px}
.blog-meta{display:flex; justify-content:space-between; align-items:center; gap:8px}
.blog-date{font-family:"Fragment Mono", monospace; font-size:11px; color: var(--muted)}
.blog-tag{font-size:11px; font-weight:600; letter-spacing:0.04em; text-transform:uppercase; border:1px solid var(--line); padding:4px 8px; border-radius:999px; background: var(--card); color: var(--ink)}
.blog-card h3{margin:0; font-size:15px; line-height:1.35; letter-spacing:-0.01em; font-weight:600}
.blog-card h3 a{text-decoration:none; color: inherit}
.blog-card h3 a:hover{text-decoration:underline; text-underline-offset:3px}
.blog-card p{margin:0; font-size:13.5px; color: var(--muted); line-height:1.6}
.blog-read{margin-top:auto; font-family:"Fragment Mono", monospace; font-size:11px; color: var(--accent); font-weight:600; padding-top:10px; border-top:1px solid var(--line)}
.blogs-empty{border:1px dashed var(--line-strong); border-radius: var(--radius-md); padding:28px; text-align:center; background: var(--card)}
.blogs-empty p{margin:0; font-size:14px; color: var(--muted)}
.blogs-cta{margin-top:16px; text-align:center; font-size:13px; color: var(--muted)}
.blogs-cta a{color: var(--ink); font-weight:600}
.page-hero{padding:36px 0 24px; border-bottom:1px solid var(--line); background: var(--card)}
.page-title{font-family:"Bricolage Grotesque", sans-serif; font-size: clamp(28px, 4vw, 42px); line-height:1; letter-spacing:-0.03em; margin:12px 0 10px; font-weight:700}
.page-desc{margin:0; color: var(--muted); font-size:15px; max-width:62ch; line-height:1.6}
.blog-card-draft{opacity:0.85}
.blog-card-foot{display:flex; justify-content:space-between; align-items:center; gap:12px; margin-top:auto; padding-top:10px; border-top:1px solid var(--line)}
.blog-author{font-family:"Fragment Mono", monospace; font-size:11px; color: var(--muted)}
.blog-howto{margin-top:32px; border:1px solid var(--line); border-radius: var(--radius-lg); padding:22px; background:#fff}
.blog-howto h2{font-family:"Bricolage Grotesque", sans-serif; font-size:18px; margin:0 0 12px; letter-spacing:-0.02em}
.blog-howto ol{margin:0; padding-left:18px; display:flex; flex-direction:column; gap:8px}
.blog-howto li{font-size:14px; color: var(--muted); line-height:1.6}
.blog-howto li strong{color: var(--ink)}
.blog-howto code{font-family:"Fragment Mono", monospace; font-size:12px; background: var(--card); border:1px solid var(--line); padding:1px 5px; border-radius:4px}
.howto-note{margin-top:14px; font-size:13px; color: var(--muted); background: var(--accent-soft); border:1px solid #d1e3e1; padding:10px 12px; border-radius:8px; line-height:1.5}
.blog-post-wrap{padding:28px 0 48px; border-bottom:1px solid var(--line)}
.blog-post{max-width:740px}
.back-link{display:inline-flex; font-size:13px; font-weight:600; text-decoration:none; color: var(--muted); margin-bottom:16px}
.back-link:hover{color: var(--ink)}
.post-meta{display:flex; gap:10px; align-items:center; margin-bottom:10px; flex-wrap:wrap}
.share-btn{margin-left:auto; display:inline-flex; align-items:center; gap:6px; padding:4px 10px; font-weight:600; cursor:pointer}
.blog-post h1{font-family:"Bricolage Grotesque", sans-serif; font-size: clamp(26px, 3.6vw, 36px); line-height:1.05; letter-spacing:-0.03em; margin:0 0 12px; font-weight:700}
.post-lead{font-size:16px; color: var(--muted); line-height:1.6; margin:0 0 18px; border-left:3px solid var(--accent); padding-left:14px}
.blog-post h2{font-size:18px; font-weight:700; letter-spacing:-0.02em; margin:22px 0 8px}
.blog-post p, .blog-post li{font-size:14.5px; color: var(--muted); line-height:1.7}
.blog-post ul, .blog-post ol{padding-left:18px}
.blog-post pre{background:#0f1413; color:#e8f0ef; padding:14px; border-radius:10px; overflow:auto; font-size:13px; line-height:1.5; border:1px solid #1a2523}
.blog-post code{font-family:"Fragment Mono", monospace; font-size:12.5px}
.blog-post figure{margin:18px 0 0}
.blog-post figcaption{font-size:12px; color: var(--muted); margin-top:8px; text-align:center}
.post-footer{margin-top:28px; padding-top:18px; border-top:1px solid var(--line); display:flex; flex-direction:column; gap:12px}
.post-footer p{margin:0}

/* Interactive XID Wraparound Visual Component */
.xid-visual-container {
  background: var(--card);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  padding: 22px;
  margin: 28px 0;
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.xid-visual-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  border-bottom: 1px solid var(--line);
  padding-bottom: 12px;
}
.xid-visual-title {
  font-family: "Bricolage Grotesque", sans-serif;
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
  margin: 0;
  display: flex;
  align-items: center;
  gap: 8px;
}
.xid-visual-body {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 20px;
  align-items: start;
}
@media (max-width: 680px) {
  .xid-visual-body {
    grid-template-columns: 1fr;
  }
}
.xid-canvas-wrap {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 12px;
}
.xid-diagnostics {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.xid-metric-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 10px 12px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.xid-metric-label {
  font-size: 12px;
  color: var(--muted);
  font-weight: 500;
}
.xid-metric-val {
  font-family: "Fragment Mono", monospace;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--ink);
}
.xid-status-badge {
  padding: 3px 9px;
  border-radius: 999px;
  font-size: 10.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.xid-status-ok { background: #e6f4ea; color: #137333; border: 1px solid #ceead6; }
.xid-status-warn { background: #fef7e0; color: #b06000; border: 1px solid #feefc3; }
.xid-status-danger { background: #fce8e6; color: #c5221f; border: 1px solid #fad2cf; }
.xid-status-frozen { background: var(--accent-soft); color: var(--accent); border: 1px solid #b2d8d5; }

.xid-controls {
  display: flex;
  flex-direction: column;
  gap: 12px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 14px;
}
.xid-slider-label {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  font-weight: 600;
  color: var(--ink);
}
.xid-slider {
  width: 100%;
  accent-color: var(--accent);
  cursor: pointer;
}
.xid-preset-btns {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}
.xid-btn {
  font-family: "Fragment Mono", monospace;
  font-size: 11px;
  padding: 5px 9px;
  border-radius: 6px;
  border: 1px solid var(--line-strong);
  background: var(--card);
  color: var(--ink);
  cursor: pointer;
  transition: all 0.15s ease;
}
.xid-btn:hover {
  background: #fff;
  border-color: var(--ink);
}
.xid-btn.active {
  background: var(--ink);
  color: #fff;
  border-color: var(--ink);
}
.xid-toggle-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12.5px;
  color: var(--ink);
  font-weight: 500;
  user-select: none;
  cursor: pointer;
}
.xid-toggle-wrap input {
  accent-color: var(--accent);
  width: 16px;
  height: 16px;
  cursor: pointer;
}
.xid-explanation {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.5;
  background: #fff;
  border-left: 3px solid var(--accent);
  padding: 10px 12px;
  border-radius: 4px;
  min-height: 72px;
}

/* Contact */
.contact-grid{
  display:grid; grid-template-columns: 0.95fr 1.05fr; gap:40px; align-items:start;
}
.contact-intro .section-title{margin:16px 0 12px}
.contact-intro p{margin:0; color: var(--muted); font-size:15px; line-height:1.7}
.contact-details{margin-top:22px; display:flex; flex-direction:column; gap:10px}
.contact-link{
  display:flex; justify-content:space-between; gap:12px; align-items:center;
  text-decoration:none; border:1px solid var(--line); border-radius: 10px; padding:12px 14px; background:#fff;
}
.contact-link:hover{border-color: var(--line-strong)}
.contact-label{font-family:"Fragment Mono", monospace; font-size:11px; text-transform:uppercase; letter-spacing:0.06em; color: var(--muted)}
.contact-value{font-size:13px; font-weight:600; color: var(--ink)}
.contact-form{
  border:1px solid var(--line); border-radius: var(--radius-lg); padding:20px; background:#fff;
  display:flex; flex-direction:column; gap:14px;
}
.contact-form label{display:flex; flex-direction:column; gap:6px; font-size:13px; font-weight:600}
.contact-form input, .contact-form textarea{
  width:100%; font: inherit; font-weight:400;
  border:1px solid var(--line-strong); border-radius:8px; padding:11px 12px; background:#fff;
  outline:none; transition: border-color .15s;
}
.contact-form input:focus, .contact-form textarea:focus{border-color: var(--ink)}
.contact-form input:invalid:not(:placeholder-shown), .contact-form textarea:invalid:not(:placeholder-shown){border-color:#c2410c}
.form-note{margin:0; font-size:13px; font-weight:500; min-height:18px}
.form-note.ok{color: var(--accent)}
.form-note.err{color:#9a3412}
.contact-link-accent{border-color: var(--accent); background: var(--accent-soft)}
.contact-link-accent .contact-value{color: var(--accent)}

/* Footer */
.site-footer{padding:22px 0; background: var(--ink); color:#cbd5d4}
.footer-inner{display:flex; justify-content:space-between; gap:16px; flex-wrap:wrap; font-size:12.5px}
.footer-right{color:#8ea8a6}

/* Responsive */
@media (max-width: 900px){
  .hero-grid, .about-grid, .contact-grid{grid-template-columns:1fr}
  .project{grid-template-columns:1fr}
  .project-media{border-right:none; border-bottom:1px solid var(--line)}
  .skills-grid{grid-template-columns: repeat(2, 1fr)}
  .edu-grid{grid-template-columns:1fr}
  .blogs-grid{grid-template-columns:1fr 1fr}
  .timeline-item{grid-template-columns:1fr; gap:8px}
}
@media (max-width: 600px){
  .skills-grid{grid-template-columns:1fr}
  .blogs-grid{grid-template-columns:1fr}
}
@media (max-width: 720px){
  .nav{display:none}
  .menu-toggle{display:flex}
  .hero{padding-top:24px}
  .hero-stats{gap:18px}
}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
}

/* utility */
[hidden]{display:none !important}