/* ============================================
   Archit Khandelwal — Portfolio
   Design concept: performance-monitoring dashboard
   (Datadog/Grafana/NewRelic vernacular — grounded
   in the subject's own domain: load testing & APM)
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=Inter:wght@400;500;600&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root{
  --bg:        #0A0F17;
  --surface:   #121A26;
  --surface-2: #17212F;
  --border:    #223047;
  --text:      #E7ECF3;
  --muted:     #7C8AA0;
  --accent:    #5EEAD4;   /* signal teal — build/creation work */
  --accent-2:  #FB923C;   /* signal amber — test/monitor work */
  --accent-dim: rgba(94,234,212,0.12);
  --amber-dim:  rgba(251,146,60,0.12);
  --radius: 10px;
  --maxw: 1100px;
}

*{ box-sizing:border-box; margin:0; padding:0; }
html{ scroll-behavior:smooth; }

@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  *{ animation-duration:0.01ms !important; transition-duration:0.01ms !important; }
}

body{
  background:var(--bg);
  color:var(--text);
  font-family:'Inter', sans-serif;
  line-height:1.6;
  background-image:
    linear-gradient(rgba(94,234,212,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(94,234,212,0.035) 1px, transparent 1px);
  background-size: 42px 42px;
  background-attachment: fixed;
}

.mono{ font-family:'JetBrains Mono', monospace; }
a{ color:inherit; text-decoration:none; }
::selection{ background:var(--accent-dim); color:var(--accent); }

:focus-visible{
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.wrap{
  max-width:var(--maxw);
  margin:0 auto;
  padding:0 28px;
}

section{ padding:96px 0; border-bottom:1px solid var(--border); }
section:last-of-type{ border-bottom:none; }

.eyebrow{
  font-family:'JetBrains Mono', monospace;
  font-size:12.5px;
  letter-spacing:0.14em;
  text-transform:uppercase;
  font-weight:600;
  color:var(--accent);
  display:flex;
  align-items:center;
  gap:8px;
  margin-bottom:18px;
}
.eyebrow::before{
  content:"";
  width:6px; height:6px;
  background:var(--accent);
  border-radius:50%;
  display:inline-block;
}

h2.section-title{
  font-family:'Space Grotesk', sans-serif;
  font-size:clamp(28px,3.4vw,38px);
  font-weight:600;
  margin-bottom:12px;
  letter-spacing:-0.01em;
}
.section-sub{ color:var(--muted); max-width:560px; margin-bottom:48px; font-size:15.5px; }

/* ---------- NAV ---------- */
.nav{
  position:sticky; top:0; z-index:50;
  background:rgba(10,15,23,0.86);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--border);
}
.nav .wrap{
  display:flex; align-items:center; justify-content:space-between;
  padding-top:16px; padding-bottom:16px;
}
.nav-brand{
  font-family:'JetBrains Mono', monospace;
  font-size:14px;
  color:var(--text);
  display:flex; align-items:center; gap:9px;
}
.status-dot{
  width:8px; height:8px; border-radius:50%;
  background:var(--accent);
  box-shadow:0 0 0 0 rgba(94,234,212,0.6);
  animation:pulse 2.4s infinite;
}
@keyframes pulse{
  0%{ box-shadow:0 0 0 0 rgba(94,234,212,0.5); }
  70%{ box-shadow:0 0 0 7px rgba(94,234,212,0); }
  100%{ box-shadow:0 0 0 0 rgba(94,234,212,0); }
}
.nav-links{ display:flex; gap:28px; font-size:13.5px; color:var(--muted); }
.nav-links a{ transition:color .15s; }
.nav-links a:hover{ color:var(--accent); }
.nav-cta{
  font-family:'JetBrains Mono', monospace;
  font-size:12.5px;
  border:1px solid var(--border);
  padding:8px 14px;
  border-radius:6px;
  color:var(--text);
  transition:border-color .15s, color .15s;
  white-space:nowrap;
}
.nav-cta:hover{ border-color:var(--accent); color:var(--accent); }

.nav-links a.active{ color:var(--accent); }

/* hamburger toggle (mobile only) */
.nav-toggle{
  display:none;
  flex-direction:column;
  justify-content:center;
  gap:5px;
  width:32px; height:32px;
  background:none;
  border:none;
  cursor:pointer;
  padding:0;
  margin-left:8px;
}
.nav-toggle span{
  width:100%; height:2px;
  background:var(--text);
  border-radius:2px;
  transition:transform .2s ease, opacity .2s ease;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1){ transform:translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2){ opacity:0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3){ transform:translateY(-7px) rotate(-45deg); }

@media (max-width:760px){
  .nav-toggle{ display:flex; }
  .nav-links{
    position:absolute;
    top:100%; left:0; right:0;
    flex-direction:column;
    align-items:flex-start;
    gap:4px;
    background:var(--surface);
    border-bottom:1px solid var(--border);
    padding:12px 28px 20px;
    max-height:0;
    overflow:hidden;
    opacity:0;
    transition:max-height .25s ease, opacity .2s ease;
  }
  .nav-links.open{
    max-height:340px;
    opacity:1;
  }
  .nav-links a{
    width:100%;
    padding:12px 0;
    border-bottom:1px dashed var(--border);
  }
  .nav-links a:last-child{ border-bottom:none; }
  .nav-cta{ font-size:11.5px; padding:7px 10px; }
}

@media (max-width:400px){
  .nav-cta{ display:none; }
}

/* ---------- HERO ---------- */
.hero{ padding:88px 0 72px; border-bottom:1px solid var(--border); position:relative; }

.hero-console{
  font-family:'JetBrains Mono', monospace;
  font-size:12.5px;
  color:var(--muted);
  border:1px solid var(--border);
  background:var(--surface);
  border-radius:8px;
  padding:10px 16px;
  display:inline-flex;
  align-items:center;
  gap:10px;
  margin-bottom:36px;
}
.hero-console .status-dot{ animation:pulse 2.4s infinite; }
.hero-console .amber{ color:var(--accent-2); }

.hero h1{
  font-family:'Space Grotesk', sans-serif;
  font-size:clamp(40px, 6.4vw, 68px);
  font-weight:700;
  letter-spacing:-0.02em;
  line-height:1.04;
  max-width:780px;
}
.hero .role{
  font-family:'JetBrains Mono', monospace;
  color:var(--accent);
  font-size:16px;
  margin-top:18px;
  letter-spacing:0.01em;
}
.hero p.lead{
  margin-top:22px;
  max-width:600px;
  color:var(--muted);
  font-size:16px;
}
.hero-actions{ display:flex; gap:14px; margin-top:36px; flex-wrap:wrap; }
.btn{
  font-family:'JetBrains Mono', monospace;
  font-size:13px;
  padding:12px 20px;
  border-radius:7px;
  display:inline-flex; align-items:center; gap:8px;
  transition:transform .15s, box-shadow .15s, background .15s, border-color .15s;
}
.btn-primary{
  background:var(--accent);
  color:#06231D;
  font-weight:600;
}
.btn-primary:hover{ transform:translateY(-2px); box-shadow:0 8px 24px rgba(94,234,212,0.18); }
.btn-outline{
  border:1px solid var(--border);
  color:var(--text);
}
.btn-outline:hover{ border-color:var(--accent); color:var(--accent); transform:translateY(-2px); }

/* distinct "contact" styling — amber signal, matches the testing/monitor accent */
.btn-contact{
  border:1px solid var(--accent-2);
  background:var(--amber-dim);
  color:var(--accent-2);
  font-weight:600;
}
.btn-contact:hover{
  background:var(--accent-2);
  color:#3A1400;
  transform:translateY(-2px);
  box-shadow:0 8px 24px rgba(251,146,60,0.22);
}
.btn-contact:active,
.btn-primary:active{ transform:translateY(0); }

.btn[disabled]{
  opacity:0.55;
  cursor:not-allowed;
  pointer-events:none;
}

/* sparkline */
.sparkline-row{ margin-top:56px; }
.sparkline-row svg{ width:100%; height:auto; display:block; }
.spark-path{
  fill:none;
  stroke:var(--accent);
  stroke-width:2;
  stroke-linecap:round;
  stroke-linejoin:round;
  stroke-dasharray:900;
  stroke-dashoffset:900;
  animation:draw 2.2s ease-out forwards .3s;
}
@keyframes draw{ to{ stroke-dashoffset:0; } }
.spark-fill{ fill:url(#sparkGrad); opacity:0.5; }
.spark-caption{
  font-family:'JetBrains Mono', monospace;
  font-size:11.5px;
  color:var(--muted);
  display:flex; justify-content:space-between;
  margin-top:8px;
}

/* KPI row */
.kpi-row{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:1px;
  margin-top:56px;
  background:var(--border);
  border:1px solid var(--border);
  border-radius:10px;
  overflow:hidden;
}
.kpi{
  background:var(--surface);
  padding:22px 20px;
}
.kpi .num{
  font-family:'JetBrains Mono', monospace;
  font-size:26px;
  color:var(--accent);
  font-weight:600;
}
.kpi .label{ font-size:12px; color:var(--muted); margin-top:4px; }
@media (max-width:700px){
  .kpi-row{ grid-template-columns:repeat(2,1fr); }
}

/* ---------- ABOUT ---------- */
.about-grid{
  display:grid;
  grid-template-columns:230px 1.15fr 1fr;
  gap:36px;
  align-items:start;
}
.about-grid p{ color:var(--muted); font-size:15.5px; margin-bottom:16px; max-width:560px; }

.profile-card{
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:12px;
  position:sticky;
  top:100px;
}
.profile-photo-frame{
  width:100%;
  aspect-ratio:3/4;
  border-radius:14px;
  overflow:hidden;
  border:1px solid var(--border);
  background:var(--surface);
  position:relative;
}
.profile-photo-frame img{
  width:100%;
  height:100%;
  object-fit:cover;
  object-position:center 20%;
  display:block;
}
.profile-fallback{
  display:none;
  position:absolute; inset:0;
  align-items:center; justify-content:center;
  font-family:'Space Grotesk', sans-serif;
  font-size:44px;
  font-weight:700;
  color:var(--accent);
  background:
    linear-gradient(135deg, var(--accent-dim), var(--amber-dim)),
    var(--surface);
}
.profile-photo-frame.img-fallback img{ display:none; }
.profile-photo-frame.img-fallback .profile-fallback{ display:flex; }
.profile-caption{
  font-size:11px;
  color:var(--muted);
  display:flex;
  align-items:center;
  gap:7px;
}

.spec-box{
  border:1px solid var(--border);
  background:var(--surface);
  border-radius:10px;
  padding:22px;
  height:fit-content;
}
.spec-box .spec-title{
  font-family:'JetBrains Mono', monospace;
  font-size:10.5px;
  font-weight:500;
  color:var(--muted);
  text-transform:uppercase;
  letter-spacing:0.08em;
  margin-bottom:14px;
  border-bottom:1px solid var(--border);
  padding-bottom:11px;
}
.spec-row{
  display:flex; justify-content:space-between; align-items:baseline;
  gap:12px;
  font-size:12.5px;
  padding:9px 0;
  border-bottom:1px dashed var(--border);
}
.spec-row:last-child{ border-bottom:none; }
.spec-row span:first-child{ color:var(--muted); flex-shrink:0; }
.spec-row span:last-child{
  font-family:'JetBrains Mono', monospace;
  font-size:12px;
  font-weight:500;
  color:var(--text);
  text-align:right;
}

@media (max-width:900px){
  .about-grid{ grid-template-columns:1fr; }
  .profile-card{ flex-direction:row; justify-content:flex-start; position:static; top:auto; }
  .profile-photo-frame{ width:120px; height:150px; flex-shrink:0; aspect-ratio:auto; }
}
@media (max-width:480px){
  .profile-photo-frame{ width:96px; height:120px; }
}

/* ---------- EXPERIENCE ---------- */
.log{ position:relative; padding-left:28px; }
.log::before{
  content:"";
  position:absolute; left:5px; top:6px; bottom:6px;
  width:1px; background:var(--border);
}
.log-entry{ position:relative; margin-bottom:44px; }
.log-entry:last-child{ margin-bottom:0; }
.log-entry::before{
  content:"";
  position:absolute; left:-28px; top:6px;
  width:11px; height:11px; border-radius:50%;
  background:var(--bg);
  border:2px solid var(--accent);
}
.log-entry.past::before{ border-color:var(--muted); }
.log-meta{
  font-family:'JetBrains Mono', monospace;
  font-size:12px;
  color:var(--muted);
  display:flex; gap:10px; flex-wrap:wrap;
  margin-bottom:8px;
}
.log-meta .tag-date{ color:var(--accent); }
.log-entry.past .log-meta .tag-date{ color:var(--accent-2); }
.log-entry h3{
  font-family:'Space Grotesk', sans-serif;
  font-size:19px; font-weight:600;
}
.log-entry .org{ color:var(--muted); font-size:13.5px; margin-top:2px; margin-bottom:12px; }
.log-entry ul{ list-style:none; }
.log-entry li{
  font-size:14.5px; color:var(--muted);
  padding-left:16px; position:relative;
  margin-bottom:6px;
}
.log-entry li::before{
  content:"›";
  position:absolute; left:0; color:var(--accent);
}
.log-entry.past li::before{ color:var(--accent-2); }

/* ---------- SKILLS ---------- */
.skill-groups{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:32px;
}
.skill-group{
  border:1px solid var(--border);
  background:var(--surface);
  border-radius:10px;
  padding:22px;
}
.skill-group h4{
  font-family:'JetBrains Mono', monospace;
  font-size:12px;
  color:var(--accent);
  text-transform:uppercase;
  letter-spacing:0.08em;
  margin-bottom:14px;
}
.tags{ display:flex; flex-wrap:wrap; gap:8px; }
.tag{
  font-family:'JetBrains Mono', monospace;
  font-size:12.5px;
  border:1px solid var(--border);
  padding:6px 10px;
  border-radius:6px;
  color:var(--text);
  background:var(--surface-2);
}
@media (max-width:700px){ .skill-groups{ grid-template-columns:1fr; } }

/* ---------- PROJECTS ---------- */
.filter-tabs{
  display:inline-flex;
  border:1px solid var(--border);
  border-radius:8px;
  overflow:hidden;
  margin-bottom:36px;
}
.filter-tab{
  font-family:'JetBrains Mono', monospace;
  font-size:12.5px;
  padding:10px 18px;
  color:var(--muted);
  cursor:pointer;
  background:var(--surface);
  border:none;
  transition:background .15s, color .15s;
}
.filter-tab + .filter-tab{ border-left:1px solid var(--border); }
.filter-tab.active{ background:var(--accent-dim); color:var(--accent); }
.filter-tab[data-filter="testing"].active{ background:var(--amber-dim); color:var(--accent-2); }

.project-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:20px;
}
.project-card{
  border:1px solid var(--border);
  background:var(--surface);
  border-radius:10px;
  padding:22px;
  cursor:pointer;
  transition:transform .18s, border-color .18s;
}
.project-card:hover{ transform:translateY(-3px); border-color:var(--border); }
.project-card[data-cat="dev"]:hover{ border-color:var(--accent); }
.project-card[data-cat="testing"]:hover{ border-color:var(--accent-2); }

.pc-thumb{
  width:100%;
  aspect-ratio:16/9;
  border-radius:8px;
  margin-bottom:16px;
  background:linear-gradient(135deg, var(--surface-2), var(--surface));
  background-size:cover;
  background-position:center;
  border:1px solid var(--border);
  display:flex;
  align-items:center;
  justify-content:center;
  overflow:hidden;
}
.pc-thumb::after{
  content:"preview_unavailable.png";
  font-family:'JetBrains Mono', monospace;
  font-size:10.5px;
  color:var(--muted);
}
.pc-thumb.has-image::after{ display:none; }

.pc-top{ display:flex; justify-content:space-between; align-items:flex-start; margin-bottom:10px; }
.pc-cat{
  font-family:'JetBrains Mono', monospace;
  font-size:10.5px;
  text-transform:uppercase;
  letter-spacing:0.08em;
  padding:3px 8px;
  border-radius:4px;
}
.project-card[data-cat="dev"] .pc-cat{ background:var(--accent-dim); color:var(--accent); }
.project-card[data-cat="testing"] .pc-cat{ background:var(--amber-dim); color:var(--accent-2); }
.project-card h3{ font-family:'Space Grotesk', sans-serif; font-size:17px; font-weight:600; margin-bottom:4px; }
.pc-meta{ font-family:'JetBrains Mono', monospace; font-size:11.5px; color:var(--muted); margin-bottom:12px; }
.project-card p{ font-size:14px; color:var(--muted); }
.project-card.hidden{ display:none; }

.pc-cta{
  font-size:11.5px;
  color:var(--muted);
  margin-top:16px;
  padding-top:14px;
  border-top:1px dashed var(--border);
  transition:color .15s, transform .15s;
}
.project-card[data-cat="dev"]:hover .pc-cta{ color:var(--accent); transform:translateX(3px); }
.project-card[data-cat="testing"]:hover .pc-cta{ color:var(--accent-2); transform:translateX(3px); }

@media (max-width:760px){ .project-grid{ grid-template-columns:1fr; } }

/* ---------- EDUCATION / CERTS ---------- */
.split{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:48px;
}
.edu-item{ margin-bottom:22px; }
.edu-item:last-child{ margin-bottom:0; }
.edu-item .school{ font-family:'Space Grotesk', sans-serif; font-weight:600; font-size:16px; }
.edu-item .meta{ font-family:'JetBrains Mono', monospace; font-size:12.5px; color:var(--accent); margin-top:2px; }
.edu-item .place{ color:var(--muted); font-size:13.5px; margin-top:2px; }

.cert-item{
  display:flex; align-items:flex-start; gap:12px;
  padding:14px 0;
  border-bottom:1px solid var(--border);
}
.cert-item:last-child{ border-bottom:none; }
.cert-icon{
  font-family:'JetBrains Mono', monospace;
  color:var(--accent-2);
  font-size:13px;
  margin-top:2px;
}
.cert-item .title{ font-size:14.5px; }
.cert-item .issuer{ font-size:12.5px; color:var(--muted); margin-top:2px; }

@media (max-width:760px){ .split{ grid-template-columns:1fr; } }

/* ---------- CONTACT / FOOTER ---------- */
.contact-panel{
  border:1px solid var(--border);
  background:var(--surface);
  border-radius:14px;
  padding:48px;
  text-align:center;
}
.contact-panel .eyebrow{ justify-content:center; }
.contact-panel h2{
  font-family:'Space Grotesk', sans-serif;
  font-size:clamp(26px,4vw,36px);
  margin-bottom:14px;
}
.contact-panel p{ color:var(--muted); max-width:480px; margin:0 auto 32px; }
.contact-links{ display:flex; justify-content:center; gap:14px; flex-wrap:wrap; }

footer{ padding:32px 0; text-align:center; }
footer p{
  font-family:'JetBrains Mono', monospace;
  font-size:12px; color:var(--muted);
}

/* ---------- BACK TO TOP ---------- */
#backToTop{
  position:fixed;
  bottom:22px; right:22px;
  width:44px; height:44px;
  border-radius:50%;
  border:1px solid var(--border);
  background:var(--surface);
  color:var(--accent);
  font-family:'JetBrains Mono', monospace;
  font-size:16px;
  display:flex; align-items:center; justify-content:center;
  cursor:pointer;
  z-index:60;
  opacity:0;
  transform:translateY(10px);
  pointer-events:none;
  transition:opacity .25s ease, transform .25s ease, border-color .15s ease;
  box-shadow:0 8px 20px rgba(0,0,0,0.35);
}
#backToTop.visible{ opacity:1; transform:translateY(0); pointer-events:auto; }
#backToTop:hover{ border-color:var(--accent); }

/* ---------- TOAST (copy feedback etc.) ---------- */
.toast{
  position:fixed;
  bottom:22px; left:50%;
  transform:translate(-50%, 12px);
  background:var(--surface);
  border:1px solid var(--accent);
  color:var(--text);
  font-family:'JetBrains Mono', monospace;
  font-size:12.5px;
  padding:10px 18px;
  border-radius:8px;
  opacity:0;
  pointer-events:none;
  transition:opacity .2s ease, transform .2s ease;
  z-index:70;
}
.toast.visible{ opacity:1; transform:translate(-50%, 0); }

/* ---------- CASE STUDY MODAL ---------- */
.modal-overlay{
  position:fixed; inset:0;
  background:rgba(5,8,13,0.72);
  backdrop-filter:blur(4px);
  display:flex;
  align-items:center;
  justify-content:center;
  padding:24px;
  z-index:100;
  opacity:0;
  pointer-events:none;
  transition:opacity .2s ease;
}
.modal-overlay.open{ opacity:1; pointer-events:auto; }

.modal{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:14px;
  width:100%;
  max-width:640px;
  max-height:88vh;
  overflow-y:auto;
  position:relative;
  transform:translateY(16px) scale(0.98);
  transition:transform .22s ease;
}
.modal-overlay.open .modal{ transform:translateY(0) scale(1); }

.modal-close{
  position:absolute;
  top:14px; right:14px;
  width:34px; height:34px;
  border-radius:8px;
  border:1px solid var(--border);
  background:var(--surface-2);
  color:var(--text);
  cursor:pointer;
  font-size:14px;
  z-index:2;
  transition:border-color .15s, color .15s;
}
.modal-close:hover{ border-color:var(--accent); color:var(--accent); }

.modal-thumb{
  width:100%;
  aspect-ratio:16/9;
  background:linear-gradient(135deg, var(--surface-2), var(--surface));
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--border);
  border-radius:14px 14px 0 0;
  display:flex;
  align-items:center;
  justify-content:center;
}
.modal-thumb::after{
  content:"preview_unavailable.png";
  font-family:'JetBrains Mono', monospace;
  font-size:11px;
  color:var(--muted);
}
.modal-thumb.has-image::after{ display:none; }

.modal-body{ padding:28px 30px 32px; }
.modal-cat{
  font-family:'JetBrains Mono', monospace;
  font-size:10.5px;
  text-transform:uppercase;
  letter-spacing:0.08em;
  padding:3px 8px;
  border-radius:4px;
  display:inline-block;
  margin-bottom:14px;
}
.modal-cat.dev{ background:var(--accent-dim); color:var(--accent); }
.modal-cat.testing{ background:var(--amber-dim); color:var(--accent-2); }

.modal-body h3{
  font-family:'Space Grotesk', sans-serif;
  font-size:22px;
  margin-bottom:6px;
}
.modal-meta{ color:var(--muted); font-size:12px; margin-bottom:22px; }

.modal-section{ margin-bottom:18px; }
.modal-section:last-of-type{ margin-bottom:0; }
.modal-section h4{
  font-family:'JetBrains Mono', monospace;
  font-size:11px;
  text-transform:uppercase;
  letter-spacing:0.08em;
  color:var(--accent);
  margin-bottom:6px;
}
.modal-section p{ color:var(--muted); font-size:14.5px; }

.modal-body .tags{ margin-top:22px; }

@media (max-width:600px){
  .modal-body{ padding:22px 20px 26px; }
  .modal-overlay{ padding:14px; }
}

/* ---------- BROADER RESPONSIVE PASS ---------- */
@media (max-width:900px){
  .wrap{ padding:0 22px; }
  section{ padding:76px 0; }
}

@media (max-width:600px){
  section{ padding:56px 0; }
  .hero{ padding:56px 0 40px; }
  .hero-console{
    font-size:11px;
    flex-wrap:wrap;
    row-gap:6px;
    padding:10px 14px;
  }
  .hero-actions{ flex-direction:column; align-items:stretch; }
  .hero-actions .btn{ justify-content:center; text-align:center; }
  .kpi-row{ grid-template-columns:1fr 1fr; }
  .kpi{ padding:16px 14px; }
  .kpi .num{ font-size:22px; }
  .contact-panel{ padding:32px 22px; }
  .contact-links{ flex-direction:column; }
  .contact-links .btn{ width:100%; justify-content:center; }
  #backToTop{ width:40px; height:40px; bottom:16px; right:16px; }
}

@media (max-width:420px){
  .kpi-row{ grid-template-columns:1fr; }
  .hero h1{ font-size:clamp(32px,9vw,40px); }
}