/* Shared design system — Ryan Giang
   Used by every page (index, photography, projects). Edit here to change site-wide look. */

@import url('https://fonts.googleapis.com/css2?family=Lexend:wght@400;500;600;700&family=Source+Sans+3:wght@400;500;600;700&display=swap');

*{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;animation-iteration-count:1 !important;transition-duration:0.01ms !important;}
}
body{background:#000;color:#fff;font-family:'Source Sans 3',-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;font-size:16px;line-height:1.6;}
a{color:inherit;text-decoration:none;}
img{max-width:100%;}

/* scroll progress indicator */
#scrollProgress{
  position:fixed;top:0;left:0;height:2px;background:#fff;z-index:9999;
  width:0%;transform-origin:left;pointer-events:none;
}

/* custom cursor (desktop, motion-enabled only — see motion.js) */
body.custom-cursor-active,
body.custom-cursor-active a,
body.custom-cursor-active button{cursor:none;}
.cursor-dot{
  position:fixed;top:0;left:0;width:8px;height:8px;margin:-4px 0 0 -4px;background:#fff;
  border-radius:50%;pointer-events:none;z-index:9999;mix-blend-mode:difference;
}
.cursor-ring{
  position:fixed;top:0;left:0;width:34px;height:34px;margin:-17px 0 0 -17px;
  border:1px solid rgba(255,255,255,.45);border-radius:50%;pointer-events:none;z-index:9998;
  transition:width .25s,height .25s,margin .25s,border-color .25s,background-color .25s;
}
.cursor-ring.cursor-hover{
  width:54px;height:54px;margin:-27px 0 0 -27px;
  background:rgba(255,255,255,.08);border-color:#fff;
}

/* top site nav, shared across pages */
.sitenav{
  display:flex;justify-content:space-between;align-items:center;
  padding:16px 20px;border-bottom:1px solid #1f2937;position:relative;
}
.sitenav .brand{
  font-size:1.05rem;font-weight:600;letter-spacing:-0.01em;cursor:pointer;
  transition:opacity .25s ease,transform .25s ease;
}
.sitenav .sitenav-links{display:flex;gap:28px;font-size:.95rem;}
.sitenav .sitenav-links a,
.sitenav .sitenav-links button{
  background:none;border:none;font-family:inherit;font-size:inherit;
  color:#9ca3af;cursor:pointer;transition:color .2s;padding:10px 2px;
}
.sitenav .sitenav-links a:hover,
.sitenav .sitenav-links button:hover{color:#fff;}
.sitenav .sitenav-links a.current{color:#fff;}

/* mobile nav: hide the brand wordmark, collapse links behind a hamburger toggle */
.nav-toggle{
  display:flex;align-items:center;justify-content:center;
  width:44px;height:44px;background:none;border:none;cursor:pointer;
  margin-left:auto;
}
.nav-toggle span{
  display:block;width:20px;height:2px;background:#fff;position:relative;
  transition:background .2s,transform .2s;
}
.nav-toggle span::before,
.nav-toggle span::after{
  content:'';position:absolute;left:0;width:20px;height:2px;background:#fff;
  transition:transform .2s,top .2s;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{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);}

@media(max-width:767px){
  .sitenav .brand.nav-hidden{opacity:0;transform:translateY(-6px);pointer-events:none;}
  .nav-toggle{display:flex;}
  .sitenav .sitenav-links{
    display:none;position:absolute;top:100%;left:0;right:0;z-index:40;
    flex-direction:column;gap:2px;background:#000;border-bottom:1px solid #1f2937;
    padding:8px 20px 16px;
  }
  .sitenav .sitenav-links.open{display:flex;}
  .sitenav .sitenav-links a,
  .sitenav .sitenav-links button{padding:14px 2px;text-align:left;}
}
@media(min-width:768px){
  .sitenav{padding:24px 48px;}
  .nav-toggle{display:none;}
}

/* footer, shared across pages */
footer{
  padding:32px 24px;border-top:1px solid #1f2937;
  display:flex;flex-direction:column;gap:16px;
}
footer .row{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:16px;}
footer p{color:#6b7280;font-size:.875rem;}
footer .links{display:flex;gap:24px;flex-wrap:wrap;}
footer .links a,
footer .links button{
  background:none;border:none;font-family:inherit;
  color:#9ca3af;font-size:.875rem;cursor:pointer;transition:color .2s;padding:10px 0;
}
footer .links a:hover,
footer .links button:hover{color:#fff;}
@media(min-width:768px){ footer{padding:48px 48px;flex-direction:row;} }

/* generic modal, used for the contact form */
.modal-overlay{
  position:fixed;inset:0;background:rgba(0,0,0,.88);display:none;
  align-items:center;justify-content:center;z-index:60;padding:24px;
}
.modal-overlay.open{display:flex;}
.modal{
  background:#0a0a0a;border:1px solid #1f2937;max-width:480px;width:100%;
  padding:36px 28px;position:relative;max-height:90vh;overflow-y:auto;
}
.modal h2{font-size:1.5rem;letter-spacing:-0.01em;margin-bottom:8px;}
.modal-sub{color:#9ca3af;font-size:.9rem;margin-bottom:24px;}
.modal-close{
  position:absolute;top:12px;right:12px;background:none;border:none;
  color:#fff;font-size:1.5rem;cursor:pointer;line-height:1;
  padding:12px;min-width:44px;min-height:44px;
}
.modal-close:focus-visible,
#contactForm input:focus-visible,
#contactForm textarea:focus-visible,
#contactForm button:focus-visible,
.sitenav a:focus-visible,
.sitenav button:focus-visible,
footer a:focus-visible,
footer button:focus-visible{
  outline:2px solid #fff;outline-offset:2px;
}

/* shared editorial components: section labels, reveal-on-scroll, spec grids, timeline */
h1,h2,h3,.brand{font-family:'Lexend',-apple-system,BlinkMacSystemFont,sans-serif;}

section{padding:64px 24px;border-top:1px solid #1f2937;}
section .section-label{
  color:#6b7280;font-size:.8rem;letter-spacing:.12em;text-transform:uppercase;
  margin-bottom:28px;display:flex;align-items:center;gap:12px;
}
section .section-label .num{color:#374151;font-family:'Lexend',sans-serif;}
section h2{font-size:1.9rem;font-weight:600;letter-spacing:-0.01em;margin-bottom:24px;max-width:640px;}
@media(min-width:768px){ section{padding:88px 48px;} }

/* scroll-reveal: apply class="reveal" to a container — motion.js staggers each
   direct child in as it enters the viewport. */
.reveal-child{
  opacity:0;transform:translateY(22px);
  transition:opacity .7s cubic-bezier(.22,1,.36,1),transform .7s cubic-bezier(.22,1,.36,1);
}
.reveal-child.in{opacity:1;transform:translateY(0);}

.btn{
  display:inline-block;padding:15px 26px;font-size:.95rem;cursor:pointer;
  border:1px solid #374151;transition:background .2s,color .2s,border-color .2s,transform .15s;
  min-height:44px;font-family:inherit;font-weight:500;
}
.btn:hover{transform:translateY(-1px);}
.btn:active{transform:translateY(0);}
.btn:focus-visible{outline:2px solid #fff;outline-offset:2px;}
.btn-primary{background:#fff;color:#000;border-color:#fff;}
.btn-primary:hover{background:#e5e7eb;}
.btn-secondary{background:rgba(255,255,255,.05);color:#fff;backdrop-filter:blur(4px);}
.btn-secondary:hover{border-color:#fff;background:rgba(255,255,255,.1);}

.spec-grid{display:grid;grid-template-columns:1fr;gap:1px;max-width:960px;background:#1f2937;border:1px solid #1f2937;}
@media(min-width:768px){ .spec-grid{grid-template-columns:repeat(3,1fr);} }
.spec-group{background:#000;padding:28px 24px;transition:background .25s;}
.spec-group:hover{background:#0a0a0a;}
.spec-group h3{font-size:.95rem;margin-bottom:18px;color:#fff;font-weight:600;text-transform:uppercase;letter-spacing:.06em;}
.spec-group ul{list-style:none;}
.spec-group li{color:#9ca3af;font-size:.95rem;padding:9px 0;border-top:1px solid #1f2937;}
.spec-group li:first-child{border-top:none;padding-top:0;}

.timeline{max-width:760px;}
.timeline-item{position:relative;padding-left:32px;padding-bottom:40px;border-left:1px solid #1f2937;}
.timeline-item:last-child{padding-bottom:0;}
.timeline-item::before{
  content:'';position:absolute;left:-6px;top:4px;width:11px;height:11px;
  border-radius:50%;background:#fff;box-shadow:0 0 0 4px #000;
}
.timeline-item .year{
  color:#6b7280;font-size:.8rem;letter-spacing:.1em;text-transform:uppercase;
  margin-bottom:8px;font-family:'Lexend',sans-serif;
}
.timeline-item h3{font-size:1.2rem;margin-bottom:8px;font-weight:600;}
.timeline-item p{color:#9ca3af;font-size:.98rem;line-height:1.7;max-width:560px;}

#contactForm label{display:block;font-size:.8rem;color:#9ca3af;margin:16px 0 6px;}
#contactForm label:first-of-type{margin-top:0;}
#contactForm input,
#contactForm textarea{
  width:100%;background:#111827;border:1px solid #1f2937;color:#fff;
  padding:12px;font-size:1rem;font-family:inherit;border-radius:2px;resize:vertical;
}
#contactForm input:focus,
#contactForm textarea:focus{border-color:#6b7280;}
#contactForm button[type="submit"]{
  margin-top:22px;width:100%;background:#fff;color:#000;border:none;
  padding:14px;font-size:1rem;font-weight:600;cursor:pointer;
  transition:opacity .2s;min-height:44px;
}
#contactForm button[type="submit"]:hover{opacity:.85;}
#contactForm button[type="submit"]:disabled{opacity:.5;cursor:not-allowed;}
.form-status{margin-top:12px;font-size:.875rem;min-height:1.3em;}
.form-status.success{color:#4ade80;}
.form-status.error{color:#f87171;}