/* ===========================================================
   PassportSnap — Malaysia passport photo maker
   =========================================================== */
:root{
  --bg:#f4f6f8;
  --surface:#ffffff;
  --surface-2:#f8fafc;
  --line:#e2e8f0;
  --text:#0f172a;
  --muted:#64748b;
  --accent:#0d9488;
  --accent-ink:#ffffff;
  --accent-soft:#ccfbf1;
  --ok:#16a34a;
  --warn:#d97706;
  --bad:#dc2626;
  --shadow:0 1px 2px rgba(15,23,42,.06), 0 8px 24px rgba(15,23,42,.06);
  --radius:14px;
}
[data-theme="dark"]{
  --bg:#0b1120;
  --surface:#121a2b;
  --surface-2:#0f1728;
  --line:#26314a;
  --text:#e8eefc;
  --muted:#94a3b8;
  --accent:#2dd4bf;
  --accent-ink:#04231f;
  --accent-soft:#134e4a;
  --shadow:0 1px 2px rgba(0,0,0,.4), 0 10px 30px rgba(0,0,0,.35);
}
*{box-sizing:border-box}
/* Class display rules (display:grid etc.) must never beat the hidden attribute. */
[hidden]{display:none!important}
html,body{margin:0;padding:0}
body{
  font:15px/1.55 ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  background:var(--bg); color:var(--text);
  -webkit-font-smoothing:antialiased;
  transition:background .2s ease,color .2s ease;
}
h1,h2,h3{margin:0;font-weight:650;letter-spacing:-.01em}
p{margin:0}

/* ---------- top bar ---------- */
.topbar{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:14px clamp(14px,3vw,32px);
  background:var(--surface);border-bottom:1px solid var(--line);
  position:sticky;top:0;z-index:20;
}
.brand{display:flex;align-items:center;gap:12px}
.brand h1{font-size:18px}
.brand p{font-size:12px;color:var(--muted)}
.logo{
  width:34px;height:34px;border-radius:10px;flex:none;
  background:linear-gradient(145deg,var(--accent),#0ea5e9);
  box-shadow:inset 0 -6px 12px rgba(0,0,0,.15);
  position:relative;
}
.logo::after{
  content:"";position:absolute;left:50%;top:7px;transform:translateX(-50%);
  width:11px;height:11px;border-radius:50%;background:#fff;
  box-shadow:0 13px 0 -1px #fff, 0 0 0 0 #fff;
}
.topbar-actions{display:flex;align-items:center;gap:10px}
.privacy-pill{
  font-size:12px;padding:5px 10px;border-radius:999px;
  background:var(--accent-soft);color:var(--accent);
  border:1px solid color-mix(in srgb,var(--accent) 30%,transparent);
  white-space:nowrap;
}
[data-theme="dark"] .privacy-pill{color:#5eead4}

/* ---------- buttons ---------- */
.btn{
  font:inherit;font-weight:560;cursor:pointer;
  padding:10px 14px;border-radius:10px;
  border:1px solid var(--line);background:var(--surface);color:var(--text);
  transition:transform .06s ease,border-color .15s,background .15s;
}
.btn:hover{border-color:color-mix(in srgb,var(--accent) 45%,var(--line))}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
.btn-primary:hover{filter:brightness(1.06)}
.btn-ghost{background:transparent}
.btn-tiny{padding:5px 10px;font-size:12.5px;border-radius:8px}
.icon-btn{
  font:inherit;cursor:pointer;width:36px;height:36px;line-height:1;
  border-radius:10px;border:1px solid var(--line);
  background:var(--surface);color:var(--text);
}
.icon-btn:hover{background:var(--surface-2)}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

/* ---------- layout ---------- */
#app{max-width:1360px;margin:0 auto;padding:clamp(16px,3vw,32px)}
.panel{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius);box-shadow:var(--shadow);padding:16px;
}
.panel-head{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:12px}
.panel-head h2{font-size:14px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted)}

/* ---------- upload ---------- */
.dropzone{
  border:2px dashed color-mix(in srgb,var(--accent) 40%,var(--line));
  border-radius:20px;background:var(--surface);
  padding:clamp(32px,7vw,72px) 24px;text-align:center;cursor:pointer;
  transition:background .15s,border-color .15s,transform .1s;
  box-shadow:var(--shadow);
}
.dropzone:hover,.dropzone:focus-visible{background:var(--surface-2);border-color:var(--accent)}
.dropzone.is-over{background:var(--accent-soft);border-color:var(--accent);transform:scale(1.006)}
.dz-icon{font-size:44px;margin-bottom:8px}
.dropzone h2{font-size:22px;margin-bottom:6px}
.dropzone p{color:var(--muted)}
.link{color:var(--accent);text-decoration:underline;text-underline-offset:3px}
.dz-actions{margin-top:20px}
.tips{
  list-style:none;margin:24px 0 0;padding:0;
  display:grid;gap:10px;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));
}
.tips li{
  background:var(--surface);border:1px solid var(--line);border-radius:12px;
  padding:12px 14px;font-size:13.5px;color:var(--muted);
}
.tips b{color:var(--text)}

/* ---------- editor ---------- */
.editor-grid{
  display:grid;gap:16px;align-items:start;
  grid-template-columns:minmax(300px,1.05fr) minmax(280px,.95fr) minmax(260px,.9fr);
}
@media (max-width:1100px){ .editor-grid{grid-template-columns:1fr 1fr} .preview-panel{grid-column:1/-1} }
@media (max-width:760px){ .editor-grid{grid-template-columns:1fr} }

.stage-wrap{display:flex;flex-direction:column;align-items:center;gap:8px}
.photo-frame{
  position:relative;width:min(100%,330px);aspect-ratio:413/591;
  border-radius:8px;overflow:hidden;background:#fff;
  border:1px solid var(--line);
  box-shadow:0 10px 30px rgba(15,23,42,.14);
  touch-action:none;cursor:grab;
}
.photo-frame.is-dragging{cursor:grabbing}
.photo-frame canvas{position:absolute;inset:0;width:100%;height:100%;display:block}
.compare-layer{clip-path:inset(0 50% 0 0);z-index:2}
.guides{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;z-index:3}
.guides.is-hidden{display:none}
.g-safe{fill:none;stroke:#0d9488;stroke-width:2;stroke-dasharray:7 5;opacity:.85}
.g-line{stroke:#0ea5e9;stroke-width:1;stroke-dasharray:4 4;opacity:.7}
.g-eye{stroke:#e11d48;opacity:.75}
.g-label{font:600 11px ui-sans-serif,system-ui;fill:#0d9488}
.g-eye-label{fill:#e11d48}
.compare-handle{
  position:absolute;top:0;bottom:0;left:50%;width:2px;background:#fff;z-index:4;
  box-shadow:0 0 0 1px rgba(0,0,0,.25);cursor:ew-resize;
}
.compare-handle span{
  position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
  width:30px;height:30px;border-radius:50%;background:#fff;
  box-shadow:0 2px 8px rgba(0,0,0,.3);
}
.compare-handle span::after{content:"⇔";position:absolute;inset:0;display:grid;place-items:center;color:#0f172a;font-size:14px}
.frame-caption{font-size:12px;color:var(--muted)}

.seg{display:inline-flex;background:var(--surface-2);border:1px solid var(--line);border-radius:9px;padding:2px}
.seg-btn{
  font:inherit;font-size:12.5px;cursor:pointer;border:0;background:transparent;color:var(--muted);
  padding:5px 10px;border-radius:7px;
}
.seg-btn.is-active{background:var(--surface);color:var(--text);box-shadow:0 1px 2px rgba(0,0,0,.1)}

/* ---------- controls ---------- */
.ctrl-group{border-top:1px solid var(--line);padding-top:14px;margin-top:14px}
.ctrl-group:first-of-type{border-top:0;padding-top:0;margin-top:0}
.ctrl-group h3{font-size:13px;margin-bottom:10px}
.slider-row{display:grid;grid-template-columns:88px 1fr 44px;align-items:center;gap:10px;margin-bottom:9px}
.slider-row label{font-size:12.5px;color:var(--muted)}
.slider-row output{font-size:12px;color:var(--muted);text-align:right;font-variant-numeric:tabular-nums}
input[type=range]{
  -webkit-appearance:none;appearance:none;width:100%;height:4px;border-radius:4px;
  background:var(--line);outline:none;
}
input[type=range]::-webkit-slider-thumb{
  -webkit-appearance:none;width:16px;height:16px;border-radius:50%;
  background:var(--accent);border:2px solid var(--surface);cursor:pointer;
  box-shadow:0 1px 4px rgba(0,0,0,.25);
}
input[type=range]::-moz-range-thumb{
  width:14px;height:14px;border-radius:50%;background:var(--accent);
  border:2px solid var(--surface);cursor:pointer;
}
.switch{display:flex;align-items:center;gap:9px;font-size:13px;margin:8px 0;cursor:pointer}
.switch input{width:16px;height:16px;accent-color:var(--accent);cursor:pointer}
.hint{font-size:12px;color:var(--muted);margin-top:6px}
.nudge{margin-top:12px;font-size:12.5px;color:var(--muted)}
.nudge small{display:block;margin-top:6px;font-size:11.5px}
.dpad{display:grid;grid-template-columns:repeat(4,36px);gap:6px;margin-top:6px}
.ctrl-actions{display:flex;gap:8px;margin-top:16px}
.ctrl-actions .btn{flex:1}

.status{
  font-size:12.5px;color:var(--muted);background:var(--surface-2);
  border:1px solid var(--line);border-radius:9px;padding:8px 10px;margin-bottom:14px;
}

/* ---------- checklist ---------- */
.checklist{list-style:none;margin:0 0 20px;padding:0;display:grid;gap:7px}
.checklist li{
  display:flex;gap:9px;align-items:flex-start;font-size:13px;
  padding:8px 10px;border-radius:9px;background:var(--surface-2);border:1px solid var(--line);
}
.checklist .mark{flex:none;width:16px;text-align:center;font-size:12px;line-height:1.5}
.checklist li.ok .mark{color:var(--ok)}
.checklist li.warn .mark{color:var(--warn)}
.checklist li.bad .mark{color:var(--bad)}
.checklist li.bad{border-color:color-mix(in srgb,var(--bad) 35%,var(--line))}
.checklist li.warn{border-color:color-mix(in srgb,var(--warn) 35%,var(--line))}
.checklist small{display:block;color:var(--muted);font-size:11.5px}

.filename-row{display:grid;gap:5px;margin-bottom:12px}
.filename-row label{font-size:12.5px;color:var(--muted)}
.filename-row input{
  font:inherit;color:var(--text);background:var(--surface-2);
  border:1px solid var(--line);border-radius:9px;padding:9px 11px;width:100%;
}
.filename-row input:focus{border-color:var(--accent);outline:none}

.export-grid{display:grid;gap:8px}

/* ---------- modal / overlays ---------- */
.modal{
  position:fixed;inset:0;z-index:60;display:grid;place-items:center;
  background:rgba(2,6,23,.6);backdrop-filter:blur(3px);padding:16px;
}
.modal-card{
  background:var(--surface);border-radius:16px;padding:18px;
  width:min(520px,100%);box-shadow:var(--shadow);
}
.modal-card h2{font-size:17px;margin-bottom:12px}
.cam-wrap{position:relative;border-radius:12px;overflow:hidden;background:#000;aspect-ratio:3/4}
.cam-wrap video{width:100%;height:100%;object-fit:cover;transform:scaleX(-1)}
.cam-guide{
  position:absolute;left:50%;top:46%;transform:translate(-50%,-50%);
  width:52%;height:62%;border:2px dashed rgba(255,255,255,.8);border-radius:50%;
}
.modal-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:14px}

.busy{
  position:fixed;inset:0;z-index:70;display:grid;place-items:center;gap:14px;
  align-content:center;background:rgba(2,6,23,.55);backdrop-filter:blur(2px);color:#fff;
}
.spinner{
  width:38px;height:38px;border-radius:50%;
  border:3px solid rgba(255,255,255,.25);border-top-color:#fff;
  animation:spin .8s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}
.toast{
  position:fixed;left:50%;bottom:24px;transform:translateX(-50%);z-index:80;
  background:var(--text);color:var(--bg);padding:10px 16px;border-radius:999px;
  font-size:13px;box-shadow:var(--shadow);max-width:90vw;text-align:center;
}

.foot{
  max-width:1360px;margin:0 auto;padding:24px clamp(16px,3vw,32px) 48px;
  color:var(--muted);font-size:12.5px;display:grid;gap:6px;
}
.foot-note{font-size:11.5px;opacity:.85}
.foot-credit{
  margin-top:6px;padding-top:10px;border-top:1px solid var(--line);
  font-size:12px;letter-spacing:.01em;
}

@media (prefers-reduced-motion:reduce){*{animation-duration:.01ms!important;transition-duration:.01ms!important}}