/* CAD Portfolio — minimal responsive CSS */
:root{
  --bg:#f8fafc;
  --card:#ffffff;
  --muted:#64748b;
  --accent:#0ea5e9;
  --accent-2:#7dd3fc;
  --text:#04263b;
  --display-font:"Bebas Neue",Inter,Segoe UI,system-ui,Roboto,Arial,Helvetica,sans-serif;
  --radius:10px;
  --container:1100px;
}
*{box-sizing:border-box}
html,body{height:100%}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:Inter,Segoe UI,system-ui,Roboto,Arial,Helvetica,sans-serif;
  background:var(--bg);
  color:var(--text);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
.container{max-width:var(--container);margin:0 auto;padding:32px}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:8px 0}
.brand{font-weight:400;font-size:1.5rem;letter-spacing:.02em;font-family:var(--display-font);color:var(--text);text-decoration:none}
.main-nav{display:flex;align-items:center;gap:8px;flex-wrap:nowrap}
.main-nav a{margin-left:0;color:var(--text);text-decoration:none;transition:color .2s ease}
.main-nav > a{padding:10px 14px;border-radius:8px;display:inline-flex;align-items:center}
.main-nav > a.nav-home{margin-left:0;position:static}
.main-nav > a.nav-about{margin-left:0;position:static}
.nav-dropdown{position:relative;display:inline-flex;align-items:center;margin-left:0}
.nav-dropdown::after{content:"";position:absolute;left:-16px;right:-16px;top:100%;height:18px;pointer-events:auto;z-index:0}
.nav-trigger,.nav-button{background:transparent;border:0;font:inherit;color:var(--text);cursor:pointer;transition:color .2s ease,background .2s ease;padding:10px 14px;border-radius:8px}
.nav-button{display:inline-flex;align-items:center}
.dropdown-menu{position:absolute;top:calc(100% - 4px);left:12px;min-width:220px;background:#ffffff;border:1px solid rgba(2,6,23,0.08);border-radius:10px;box-shadow:0 12px 30px rgba(2,6,23,0.12);padding:8px;display:grid;gap:4px;opacity:0;transform:translateY(6px);pointer-events:none;transition:opacity .2s ease,transform .2s ease;z-index:1}
.dropdown-menu::before{content:"";position:absolute;left:0;right:0;top:-12px;height:12px}
.dropdown-menu a{margin:0;padding:8px 10px;border-radius:8px;color:var(--text);text-decoration:none}
.dropdown-menu a:hover{background:rgba(14,165,233,0.12)}
.nav-dropdown:focus-within .dropdown-menu,.nav-dropdown:hover .dropdown-menu{opacity:1;transform:translateY(0);pointer-events:auto}
.nav-dropdown .dropdown-menu a{display:block}
.site-header{position:relative;z-index:2000;backdrop-filter:saturate(120%) blur(6px);background:rgba(255,255,255,0.6);border-bottom:1px solid rgba(2,6,23,0.04)}

/* Projects page larger cards + gallery preview */
.projects .grid{grid-template-columns:repeat(2,1fr);gap:28px}
.projects .card{min-height:0}
.projects .card-media{padding:0;background:linear-gradient(135deg,#f8fafc,#eef6ff);border-bottom:1px solid rgba(2,6,23,0.06);height:auto}
.projects .thumbs{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.projects .thumbs svg{width:100%;height:80px;border-radius:8px;display:block}
.projects .thumbs iframe{width:100%;height:80px;border-radius:8px;border:0;display:block;pointer-events:none;background:#0b1220}
.projects .thumbs img{width:100%;height:100%;border-radius:8px;display:block;object-fit:cover}
.projects .thumbs img.thumbs-preview--aux,
.projects .thumbs img.thumbs-preview--working{height:300px;object-fit:contain;object-position:center;background:#0b1220}
.projects .thumbs img.thumbs-preview--logo{height:240px;object-fit:contain;object-position:center;background:#ffffff}
.projects .thumbs--single{display:block}
.projects .thumbs--single iframe{height:170px}
.projects .thumbs--single img{height:300px}

/* Hero */
.hero{padding:64px 0;min-height:calc(100vh - 72px);display:flex;align-items:center}
.hero-inner{display:flex;gap:32px;align-items:center;width:100%}
.hero-copy{flex:1}
.hero h1{font-size:3.6rem;font-family:var(--display-font);font-weight:400;letter-spacing:.02em;margin:0 0 16px}
.lead{color:var(--muted);margin:0 0 18px}
.cta-row{margin-top:8px}
.btn{display:inline-block;padding:10px 16px;border-radius:8px;text-decoration:none;border:1px solid transparent;transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease}
.btn.primary{background:var(--accent);color:white}
.btn.ghost{background:transparent;border-color:rgba(2,6,23,0.06);color:var(--text);margin-left:8px}
.hero-mockup{width:420px;flex:0 0 420px}

.home .hero{
  color:#f8fafc;
  background-image:linear-gradient(120deg,rgba(4,38,59,0.75),rgba(4,38,59,0.2)),url("../assets/info/FrontPageBlueTram.png");
  background-size:contain;
  background-position:center 60%;
  background-repeat:no-repeat;
  animation:none;
  overflow:hidden;
}

.home .hero-inner{
  justify-content:center;
}

.home .hero-copy{
  text-align:center;
  max-width:720px;
  margin:0 auto;
}

body.home.home-motion .hero-copy{
  opacity:0;
  transform:translateY(34px);
}

.home .cta-row{
  display:flex;
  justify-content:center;
  gap:12px;
  flex-wrap:wrap;
}

.home .cta-row .btn{
  margin:0;
}

.home .hero .btn.ghost{
  border-color:rgba(248,250,252,0.5);
  color:#f8fafc;
}

/* Projects */
.section-title{font-size:1.25rem;margin:0 0 12px}
.section-sub{color:var(--muted);margin:0 0 24px}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.card{background:var(--card);border-radius:10px;overflow:hidden;box-shadow:0 6px 18px rgba(2,6,23,0.06);display:flex;flex-direction:column;transition:transform .2s ease,box-shadow .2s ease}
.card-media{height:140px;display:block}
.card-body{padding:14px}
.card h3{margin:0 0 8px;font-size:1rem}
.card .muted{color:var(--muted);font-size:.9rem;margin:0 0 12px}
.card-link{color:var(--accent);text-decoration:none;font-weight:600}

/* Drawing previews */
.preview-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:24px}
.preview-card{background:var(--card);border-radius:16px;overflow:hidden;box-shadow:0 10px 28px rgba(2,6,23,0.1);display:flex;flex-direction:column}
.preview-surface{position:relative;aspect-ratio:4/3;background:linear-gradient(135deg,#0b1220,#0f1a30);overflow:hidden}
.preview-track{display:flex;width:200%;height:100%;transition:transform .45s ease}
.preview-card.is-model .preview-track{transform:translateX(-50%)}
.preview-pane{width:50%;height:100%;position:relative}
.preview-pane iframe{width:100%;height:100%;border:0;pointer-events:none;background:#0b1220}
.model-preview{position:relative;width:100%;height:100%;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#0b1220,#111f36)}
.model-preview svg{width:78%;height:auto;display:block}
.model-preview model-viewer{width:100%;height:100%;background:transparent;display:block}
.preview-pane--model .model-preview model-viewer{pointer-events:none}
.preview-modal__model model-viewer{pointer-events:auto}
.model-caption{position:absolute;left:12px;bottom:10px;font-size:.75rem;letter-spacing:.12em;text-transform:uppercase;color:#cfeafe}
.preview-overlay{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:rgba(4,38,59,0.4);color:#f8fafc;font-family:var(--display-font);font-size:1.4rem;letter-spacing:.02em;opacity:0;transition:opacity .2s ease;z-index:2;border:0;cursor:pointer}
.preview-overlay-title{padding:12px 16px;border-radius:10px;background:rgba(4,38,59,0.35);text-align:center}
.preview-surface:hover .preview-overlay,.preview-surface:focus-within .preview-overlay{opacity:1}
.preview-toggle{position:absolute;right:12px;top:50%;transform:translateY(-50%);z-index:3;border:0;background:rgba(248,250,252,0.85);color:#04263b;border-radius:999px;width:36px;height:36px;font-size:1rem;cursor:pointer;box-shadow:0 10px 18px rgba(2,6,23,0.2);transition:transform .2s ease,background .2s ease;font-family:inherit}
.preview-card.is-model .preview-toggle{right:auto;left:12px}
.preview-toggle:hover{transform:translateY(-50%) scale(1.04);background:#ffffff}
.preview-title{padding:12px 16px}
.preview-title h3{margin:0;font-size:1rem}

.preview-modal{position:fixed;inset:0;display:grid;place-items:center;opacity:0;pointer-events:none;transition:opacity .2s ease;z-index:4000}
.preview-modal.is-open{opacity:1;pointer-events:auto}
.preview-modal__backdrop{position:absolute;inset:0;background:rgba(4,38,59,0.6)}
.preview-modal__content{position:relative;z-index:1;width:min(960px,92vw);background:#ffffff;border-radius:18px;overflow:hidden;box-shadow:0 30px 60px rgba(2,6,23,0.35)}
.preview-modal__header{padding:16px 20px;border-bottom:1px solid rgba(2,6,23,0.08);display:flex;align-items:center;justify-content:space-between}
.preview-modal__title{margin:0;font-size:1.2rem}
.preview-modal__close{border:0;background:transparent;color:var(--muted);font-weight:600;cursor:pointer;font-family:inherit}
.preview-modal__viewer{position:relative;background:#0b1220;aspect-ratio:16/10}
.preview-modal__track{display:flex;width:200%;height:100%;transition:transform .45s ease}
.preview-modal.is-model .preview-modal__track{transform:translateX(-50%)}
.preview-modal__pane{width:50%;height:100%}
.preview-modal__frame{width:100%;height:100%;border:0;background:#0b1220}
.preview-modal__model{width:100%;height:100%}
.preview-modal__toggle{position:absolute;right:16px;top:50%;transform:translateY(-50%);z-index:2;border:0;background:rgba(248,250,252,0.9);color:#04263b;border-radius:999px;width:44px;height:44px;font-size:1.1rem;cursor:pointer;box-shadow:0 12px 22px rgba(2,6,23,0.2);transition:transform .2s ease,background .2s ease;font-family:inherit}
.preview-modal.is-model .preview-modal__toggle{right:auto;left:16px}
.preview-modal__toggle:hover{transform:translateY(-50%) scale(1.04);background:#ffffff}
body.is-modal-open{overflow:hidden}

/* Competition pages */
.competition-section{margin-bottom:48px}
.competition-section:last-child{margin-bottom:0}
.competition-title{margin:0 0 6px;font-size:1.1rem}
.competition-copy{margin:0 0 16px;color:var(--muted)}
.competition-copy--spaced{margin-bottom:22px}
.competition-preview--spaced{margin-bottom:22px}
.competition-caption{margin:10px 0 0;color:var(--muted);text-align:center;font-size:.9rem}
.competition-stack{display:grid;gap:18px}
.competition-preview{position:relative;background:var(--card);border-radius:16px;overflow:hidden;box-shadow:0 10px 24px rgba(2,6,23,0.1)}
.competition-preview--compact{max-width:720px;margin:0 auto}
.competition-preview--pdf,.competition-preview--model{aspect-ratio:16/10;background:#0b1220}
.competition-preview--image{aspect-ratio:16/9;background:#0b1220}
.competition-preview--model{background:linear-gradient(135deg,#0b1220,#111f36)}
.competition-preview iframe{width:100%;height:100%;border:0;display:block;background:#0b1220}
.competition-preview img{width:100%;height:100%;display:block;object-fit:contain;background:#0b1220}
.competition-preview model-viewer{width:100%;height:100%;display:block;background:transparent}
.competition-preview .model-caption{position:absolute;left:12px;bottom:10px}

/* About */
.about{padding:48px 0}
.about-grid{display:grid;grid-template-columns:1fr 340px;gap:28px;align-items:start}
.about-media{display:flex;flex-direction:column;gap:16px;align-items:flex-end}
.about-image{width:320px;max-width:100%;border-radius:16px;overflow:hidden;box-shadow:0 14px 30px rgba(2,6,23,0.12)}
.about-image svg,.about-image img{display:block;width:100%;height:auto}
.class-photo{margin-top:24px}
.class-photo img{width:100%;border-radius:16px;display:block;box-shadow:0 14px 30px rgba(2,6,23,0.12)}
.class-photo .small{display:block;margin-top:10px;text-align:left}
.about-wide{margin-top:28px}
.about-wide img{width:100%;border-radius:16px;display:block;box-shadow:0 14px 30px rgba(2,6,23,0.12)}
.about-wide .small{display:block;margin-top:10px;text-align:center}
.muted{color:var(--muted)}

.resume-preview{margin-top:28px}
.resume-frame{border-radius:14px;overflow:hidden;border:1px solid rgba(2,6,23,0.08);box-shadow:0 10px 24px rgba(2,6,23,0.08)}
.resume-frame iframe{width:100%;height:520px;border:0;background:#ffffff}

/* Contact */
.contact{padding:8px 0 32px}
.contact .container{text-align:center}
.contact .section-sub{margin-bottom:10px}
.contact-info{margin:6px 0 0}
.contact-info a{color:var(--accent)}

/* Footer */
.site-footer{border-top:1px solid rgba(2,6,23,0.04);background:transparent}
.footer-inner{display:flex;align-items:center;justify-content:space-between;padding:18px 0}
.foot-nav a{margin-left:12px;color:var(--muted);text-decoration:none}

/* Page hero */
.page-hero{padding:48px 0}
.eyebrow{font-size:.8rem;text-transform:uppercase;letter-spacing:.18em;color:var(--muted);margin:0 0 8px}

/* Animations */
main > section{animation:fadeUp .6s ease both}
.hero{animation:fadeUp .6s ease both}
.hero-mockup{animation:fadeUp .8s ease both}
.btn:hover{transform:translateY(-1px);box-shadow:0 8px 18px rgba(2,6,23,0.12)}
.card:hover{transform:translateY(-4px);box-shadow:0 12px 26px rgba(2,6,23,0.12)}
.main-nav a:hover,.foot-nav a:hover{color:var(--accent)}

@keyframes fadeUp{
  from{opacity:0;transform:translateY(12px)}
  to{opacity:1;transform:translateY(0)}
}

/* Responsive */
@media (max-width:1000px){
  .header-inner{flex-wrap:wrap;gap:10px}
  .main-nav{flex-wrap:wrap;gap:10px}
  .hero-inner{flex-direction:column}
  .hero-mockup{width:100%;flex:auto}
  .grid{grid-template-columns:repeat(2,1fr)}
  .projects .grid{grid-template-columns:1fr}
  .about-grid{grid-template-columns:1fr}
}
@media (max-width:600px){
  .grid{grid-template-columns:1fr}
  .container{padding:20px}
  .brand{font-size:1.1rem}
  .hero h1{font-size:2.4rem}
}

@media (prefers-reduced-motion: reduce){
  *{animation:none !important;transition:none !important}
}

/* utility */
.text-center{text-align:center}
.small{font-size:.9rem;color:var(--muted)}