/* ============================================================
   NID Data Extractor — Design tokens
   Palette:  Ink Navy #132A46 · Verified Teal #0E7C86
             Paper #F6F4EF · Card #FFFFFF · Hairline #DEDAD0
             Seal Gold #B8860B · Alert #B3261E
   Type:     Fraunces (display) · Inter (UI) · IBM Plex Mono (data)
   ============================================================ */

:root{
  --ink:#132A46;
  --ink-soft:#3D5066;
  --teal:#0E7C86;
  --teal-dark:#0A5F67;
  --teal-tint:#E7F3F3;
  --paper:#F6F4EF;
  --card:#FFFFFF;
  --hairline:#DEDAD0;
  --hairline-strong:#C9C3B4;
  --gold:#B8860B;
  --alert:#B3261E;

  --font-display:'Fraunces', Georgia, serif;
  --font-ui:'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono:'IBM Plex Mono', 'Consolas', monospace;

  --radius:10px;
  --shadow:0 1px 2px rgba(19,42,70,0.06), 0 6px 20px rgba(19,42,70,0.05);
  --shadow-lg:0 10px 34px rgba(19,42,70,0.10);
}

*{box-sizing:border-box;margin:0;padding:0;}

body{
  font-family:var(--font-ui);
  background:var(--paper);
  color:var(--ink);
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
}

.app-wrapper{
  min-height:100vh;
  display:flex;
  flex-direction:column;
}

/* ---------------- Header ---------------- */
.app-header{
  background:
    repeating-linear-gradient(115deg, rgba(255,255,255,0.035) 0px, rgba(255,255,255,0.035) 1px, transparent 1px, transparent 7px),
    linear-gradient(155deg, #0F2237 0%, var(--ink) 55%, #1B3A5C 100%);
  border-bottom:1px solid #0A1B2D;
  color:#F2F0EA;
}
.header-inner{
  max-width:1120px;
  margin:0 auto;
  padding:26px 24px;
}
.brand{
  display:flex;
  align-items:center;
  gap:16px;
}
.brand-seal{
  width:48px;height:48px;
  border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  color:#D9C48A;
  background:rgba(255,255,255,0.04);
  border:1px solid rgba(217,196,138,0.35);
  flex-shrink:0;
}
.brand-eyebrow{
  display:block;
  font-family:var(--font-mono);
  font-size:10.5px;
  letter-spacing:1.4px;
  text-transform:uppercase;
  color:#9FB4C7;
  margin-bottom:5px;
}
.brand-text h1{
  font-family:var(--font-display);
  font-size:24px;
  font-weight:600;
  letter-spacing:0.2px;
  color:#FBFAF7;
}

/* ---------------- Main ---------------- */
.main-container{
  max-width:1120px;
  margin:0 auto;
  width:100%;
  padding:36px 24px 64px;
  flex:1;
}

.card{
  position:relative;
  background:var(--card);
  border:1px solid var(--hairline);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  padding:30px 30px 32px;
  margin-bottom:26px;
}

.step-row{
  display:flex;
  align-items:baseline;
  gap:13px;
  margin-bottom:6px;
}
.step-badge{
  font-family:var(--font-mono);
  font-size:12px;
  font-weight:600;
  letter-spacing:0.5px;
  color:var(--teal-dark);
  background:var(--teal-tint);
  border:1px solid rgba(14,124,134,0.25);
  border-radius:5px;
  padding:2px 7px;
  line-height:1.5;
}
.card-heading h2{
  font-family:var(--font-display);
  font-size:21px;
  font-weight:600;
  color:var(--ink);
}
.card-heading p{
  font-size:13.5px;
  color:var(--ink-soft);
  margin:6px 0 24px;
  max-width:52ch;
}

/* ---------------- Upload boxes ---------------- */
.upload-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:18px;
}

.upload-box{
  position:relative;
  border:1px solid var(--hairline-strong);
  border-radius:8px;
  background:var(--paper);
  min-height:188px;
  display:flex;
  align-items:center;
  justify-content:center;
  cursor:pointer;
  transition:border-color .18s ease, background .18s ease, box-shadow .18s ease;
  overflow:hidden;
}

/* corner-bracket frame, referencing the photo box on a paper ID form */
.upload-box::before,
.upload-box::after{
  content:"";
  position:absolute;
  width:16px;height:16px;
  border:2px solid var(--hairline-strong);
  transition:border-color .18s ease;
  pointer-events:none;
  z-index:2;
}
.upload-box::before{
  top:8px;left:8px;
  border-right:none;border-bottom:none;
}
.upload-box::after{
  bottom:8px;right:8px;
  border-left:none;border-top:none;
}
.upload-box:hover,
.upload-box.drag-over{
  background:var(--teal-tint);
  box-shadow:inset 0 0 0 1px rgba(14,124,134,0.18);
}
.upload-box:hover::before, .upload-box:hover::after,
.upload-box.drag-over::before, .upload-box.drag-over::after{
  border-color:var(--teal);
}

.upload-box-inner{
  text-align:center;
  padding:20px 12px;
}
.upload-icon{
  width:34px;height:34px;
  margin:0 auto 10px;
  color:var(--teal-dark);
  opacity:0.75;
}
.upload-icon svg{width:100%;height:100%;display:block;}
.upload-title{
  font-size:13.5px;
  font-weight:600;
  color:var(--ink);
  letter-spacing:0.1px;
}
.upload-sub{
  font-family:var(--font-mono);
  font-size:10.5px;
  color:var(--ink-soft);
  margin-top:5px;
  letter-spacing:0.2px;
}

.preview-wrap{
  width:100%;height:100%;min-height:188px;position:relative;
}
.preview-wrap img{
  width:100%;height:100%;min-height:188px;
  object-fit:cover;display:block;
}
.remove-btn{
  position:absolute;top:9px;right:9px;
  width:26px;height:26px;border-radius:50%;border:none;
  background:rgba(19,42,70,0.72);color:#fff;cursor:pointer;
  font-size:13px;line-height:1;
  display:flex;align-items:center;justify-content:center;
  z-index:5;
}
.remove-btn:hover{background:var(--alert);}

/* ---------------- Action row ---------------- */
.action-row{
  margin-top:26px;
  display:flex;align-items:center;gap:16px;flex-wrap:wrap;
}

.btn-primary{
  background:var(--teal);
  color:#fff;border:none;
  padding:12px 28px;border-radius:7px;
  font-family:var(--font-ui);
  font-size:14px;font-weight:600;letter-spacing:0.2px;
  cursor:pointer;
  display:inline-flex;align-items:center;gap:10px;
  transition:background .18s ease, transform .08s ease;
}
.btn-primary:hover:not(:disabled){background:var(--teal-dark);}
.btn-primary:active:not(:disabled){transform:translateY(1px);}
.btn-primary:disabled{background:#B9C2CB;cursor:not-allowed;}

.spinner{
  width:15px;height:15px;
  border:2.5px solid rgba(255,255,255,0.4);
  border-top-color:#fff;border-radius:50%;
  animation:spin .7s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg);}}

.error-msg{
  color:var(--alert);
  font-size:13px;font-weight:500;
}

/* ---------------- Results ---------------- */
.result-card{overflow:hidden;}

.verified-stamp{
  position:absolute;
  top:22px;right:26px;
  color:var(--gold);
  opacity:0.9;
  transform:rotate(-8deg);
  pointer-events:none;
}

.result-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:18px;
}
.result-box{
  border:1px solid var(--hairline);
  border-radius:8px;
  background:var(--paper);
  overflow:hidden;
}
.result-box-header{
  display:flex;align-items:center;justify-content:space-between;
  padding:12px 16px;
  background:var(--card);
  border-bottom:1px solid var(--hairline);
}
.result-box-header h3{
  font-family:var(--font-mono);
  font-size:12px;font-weight:600;
  letter-spacing:0.6px;text-transform:uppercase;
  color:var(--ink-soft);
}
.copy-btn{
  background:transparent;
  color:var(--teal-dark);
  border:1px solid rgba(14,124,134,0.35);
  padding:5px 13px;border-radius:6px;
  font-family:var(--font-ui);
  font-size:12px;font-weight:600;
  cursor:pointer;
  transition:background .15s ease, color .15s ease;
}
.copy-btn:hover{background:var(--teal);color:#fff;}
.copy-btn.copied{background:#1E8E5A;border-color:#1E8E5A;color:#fff;}

.output-pre{
  padding:18px 16px;
  font-family:var(--font-mono);
  font-size:12.8px;
  line-height:1.85;
  white-space:pre-wrap;
  word-break:break-word;
  min-height:168px;
  color:var(--ink);
}

/* ---------------- Footer ---------------- */
.app-footer{
  text-align:center;
  padding:20px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:0.2px;
  color:var(--ink-soft);
  border-top:1px solid var(--hairline);
  background:var(--card);
}

/* ---------------- Responsive — strict 2-column upload/result grid ---------------- */
@media (max-width:640px){
  .header-inner{padding:18px 16px;}
  .brand-seal{width:40px;height:40px;}
  .brand-seal svg{width:22px;height:22px;}
  .brand-text h1{font-size:19px;}
  .brand-eyebrow{font-size:9.5px;}

  .main-container{padding:24px 14px 44px;}
  .card{padding:20px 16px 22px;}

  .upload-grid{gap:10px;}
  .upload-box{min-height:148px;}
  .preview-wrap, .preview-wrap img{min-height:148px;}
  .upload-icon{width:26px;height:26px;}
  .upload-title{font-size:11.5px;}
  .upload-sub{font-size:9px;}

  .verified-stamp{top:16px;right:16px;}
  .verified-stamp svg{width:52px;height:52px;}

  .result-grid{grid-template-columns:1fr 1fr;gap:10px;}
  .result-box-header{padding:9px 11px;}
  .result-box-header h3{font-size:10px;}
  .copy-btn{padding:4px 9px;font-size:10.5px;}
  .output-pre{padding:12px 11px;font-size:11px;min-height:130px;line-height:1.7;}

  .btn-primary{width:100%;justify-content:center;}
}