/* ===========================================================
   Paper Titler — Global Styles
   Design tokens grounded in the reference brief:
   - Background: near-black warm charcoal
   - Card surfaces: aged cream/parchment
   - Accent: soft coral-to-peach gradient
   - Display type: elegant serif (Cormorant Garamond)
   - Body type: clean grotesque (Jost)
=========================================================== */

@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,400;0,500;0,600;1,400;1,500&family=Jost:wght@300;400;500;600&display=swap');

:root{
  /* core palette */
  --bg:            #15110d;
  --bg-soft:       #1b1611;
  --bg-elevated:   #211b15;
  --line:          #33291f;
  --line-soft:     #2a2119;

  --parchment:     #efe6d6;
  --parchment-soft:#e6dac5;
  --parchment-dim: #d8cbb2;

  --ink:           #f4ece0;
  --ink-dim:       #cabfae;
  --ink-faint:     #8f8272;

  --coral-1:       #f0a488;
  --coral-2:       #d97b5c;
  --coral-ink:     #2a140c;

  --serif: 'Cormorant Garamond', Georgia, serif;
  --sans:  'Jost', 'Segoe UI', sans-serif;

  --container: 1320px;
  --radius-lg: 22px;
  --radius-md: 14px;
  --radius-sm: 8px;
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--sans);
  font-weight:300;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
ul{ list-style:none; margin:0; padding:0; }
button{ font-family:inherit; cursor:pointer; background:transparent; border:none; color:inherit; padding:0; }
input,textarea,select{ font-family:inherit; }

input:-webkit-autofill,
input:-webkit-autofill:hover, 
input:-webkit-autofill:focus, 
textarea:-webkit-autofill,
textarea:-webkit-autofill:hover,
textarea:-webkit-autofill:focus {
  -webkit-text-fill-color: var(--ink) !important;
  -webkit-box-shadow: 0 0 0px 1000px var(--bg-soft) inset !important;
  box-shadow: 0 0 0px 1000px var(--bg-soft) inset !important;
  transition: background-color 5000s ease-in-out 0s;
}

.wrap{
  max-width:var(--container);
  margin:0 auto;
  padding:0 32px;
}

/* subtle constellation backdrop used on dark sections */
.stars-bg{
  position:relative;
  overflow:hidden;
}
.stars-bg::before{
  content:"";
  position:absolute; inset:0;
  background-image:
    radial-gradient(1px 1px at 12% 22%, rgba(240,164,136,.55), transparent),
    radial-gradient(1px 1px at 76% 12%, rgba(240,164,136,.4), transparent),
    radial-gradient(1.5px 1.5px at 88% 38%, rgba(240,164,136,.5), transparent),
    radial-gradient(1px 1px at 34% 68%, rgba(240,164,136,.35), transparent),
    radial-gradient(1px 1px at 60% 82%, rgba(240,164,136,.3), transparent);
  pointer-events:none;
}

/* ---------------- buttons ---------------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:15px 28px;
  border-radius:999px;
  font-family:var(--sans);
  font-size:14.5px;
  font-weight:500;
  letter-spacing:.2px;
  border:1px solid transparent;
  transition:transform .18s ease, box-shadow .18s ease, background .18s ease, border-color .18s ease;
}
.btn:active{ transform:translateY(1px); }

.btn-primary{
  background:linear-gradient(135deg, var(--coral-1), var(--coral-2));
  color:var(--coral-ink);
  box-shadow:0 8px 24px -8px rgba(217,123,92,.55);
}
.btn-primary:hover{ box-shadow:0 10px 30px -6px rgba(217,123,92,.7); transform:translateY(-1px); }

.btn-ghost{
  background:transparent;
  color:var(--ink);
  border-color:rgba(244,236,224,.22);
}
.btn-ghost:hover{ border-color:rgba(244,236,224,.5); background:rgba(244,236,224,.05); }

.btn-outline-dark{
  background:transparent;
  border-color:rgba(21,17,13,.25);
  color:var(--bg);
}
.btn-outline-dark:hover{ background:rgba(21,17,13,.06); }

.btn-lg{ padding:17px 32px; font-size:15.5px; }
.btn-block{ width:100%; }
.btn[disabled]{ opacity:.55; cursor:not-allowed; }

.icon-circle{
  width:20px; height:20px;
  display:inline-flex; align-items:center; justify-content:center;
}

/* ---------------- nav ---------------- */
.site-nav{
  position:sticky; top:0; z-index:50;
  background:rgba(21,17,13,.82);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line-soft);
}
.site-nav .wrap{
  display:flex; align-items:center; justify-content:space-between;
  height:84px;
}
.brand{ display:flex; align-items:center; gap:12px; }
.brand-mark{
  width:38px; height:38px; border-radius:50%;
  border:1px solid rgba(244,236,224,.3);
  display:flex; align-items:center; justify-content:center;
  color:var(--coral-1);
  transform:rotate(-8deg);
}
.brand-text .name{
  font-family:var(--serif); font-size:20px; font-weight:600;
  letter-spacing:.3px; line-height:1;
}
.brand-text .sub{
  display:block; margin-top:4px;
  font-size:9.5px; letter-spacing:2.5px; color:var(--ink-faint);
  font-family:var(--sans);
}
.nav-links{
  display:flex; align-items:center; gap:40px;
  font-size:14.5px; color:var(--ink-dim);
}
.nav-links a{ position:relative; padding:6px 0; transition:color .15s ease; }
.nav-links a:hover, .nav-links a.active{ color:var(--ink); }
.nav-links a.active::after{
  content:""; position:absolute; left:50%; bottom:-6px; translate:-50% 0;
  width:4px; height:4px; border-radius:50%; background:var(--coral-1);
}
.nav-right{ display:flex; align-items:center; gap:14px; }
.nav-toggle{ display:none; }

.user-menu{ position:relative; }
.user-chip{
  display:inline-flex; align-items:center; gap:9px;
  padding:5px 14px 5px 6px; border-radius:999px;
  background:rgba(244,236,224,.06);
  border:1px solid rgba(244,236,224,.16);
  color:var(--ink); font-size:13.5px; font-weight:400;
  cursor:pointer;
  transition:all .2s ease;
  backdrop-filter:blur(10px);
}
.user-chip:hover{
  background:rgba(244,236,224,.11);
  border-color:rgba(240,164,136,.45);
  box-shadow:0 4px 20px rgba(0,0,0,.4);
  transform:translateY(-1px);
}
.user-chip .avatar{
  width:28px; height:28px; border-radius:50%;
  background:linear-gradient(135deg, var(--coral-1), var(--coral-2));
  display:flex; align-items:center; justify-content:center;
  color:var(--coral-ink); font-weight:600; font-size:12.5px;
  box-shadow:0 2px 8px rgba(217,123,92,.45);
}
.user-chip .user-name{
  font-weight:400;
  color:var(--ink);
  letter-spacing:.2px;
}
.user-chip .icon-circle{
  width:15px; height:15px;
  color:var(--ink-faint);
  transition:transform .2s ease, color .2s ease;
}
.user-chip:hover .icon-circle{
  color:var(--coral-1);
}
.user-dropdown{
  position:absolute; right:0; top:calc(100% + 10px);
  background:rgba(28,23,18,.96);
  border:1px solid rgba(244,236,224,.14);
  border-radius:var(--radius-md); min-width:220px;
  padding:8px; display:none; flex-direction:column; gap:2px;
  box-shadow:0 24px 48px -12px rgba(0,0,0,.75), 0 0 0 1px rgba(255,255,255,.03);
  backdrop-filter:blur(20px);
  z-index:100;
}
.user-dropdown.open{
  display:flex;
  animation:dropdownSlideIn .18s cubic-bezier(0.16, 1, 0.3, 1);
}
@keyframes dropdownSlideIn{
  from{ opacity:0; transform:translateY(-8px) scale(0.97); }
  to{ opacity:1; transform:translateY(0) scale(1); }
}
.dropdown-header{
  padding:8px 12px 10px;
  display:flex; flex-direction:column; gap:2px;
}
.dropdown-name{
  font-size:13.5px; font-weight:500; color:var(--ink);
}
.dropdown-email{
  font-size:11.5px; color:var(--ink-faint);
  overflow:hidden; text-overflow:ellipsis; white-space:nowrap;
}
.dropdown-divider{
  height:1px; background:var(--line-soft);
  margin:4px 0;
}
.user-dropdown a, .user-dropdown button{
  display:flex; align-items:center; gap:10px;
  padding:9px 12px; border-radius:8px; font-size:13px;
  color:var(--ink-dim); background:transparent; border:none; text-align:left;
  cursor:pointer;
  transition:all .15s ease;
  width:100%;
}
.user-dropdown a:hover, .user-dropdown button:hover{
  background:rgba(240,164,136,.12);
  color:var(--coral-1);
}
.user-dropdown a .icon-circle, .user-dropdown button .icon-circle{
  width:17px; height:17px; opacity:.85;
}
.user-dropdown #logout-btn{
  color:#f28b82;
}
.user-dropdown #logout-btn:hover{
  background:rgba(242,139,130,.12);
  color:#ffab91;
}

/* ---------------- hero ---------------- */
.hero{
  position:relative;
  padding:86px 0 0;
}
.hero .wrap{
  display:grid;
  grid-template-columns:1fr 1fr;
  align-items:center;
  gap:40px;
  position:relative; z-index:2;
}
.hero-eyebrow{
  display:flex; align-items:center; gap:12px;
  color:var(--coral-1); font-size:13px; letter-spacing:2px;
  margin-bottom:22px;
}
.hero-eyebrow .rule{ width:34px; height:1px; background:var(--coral-1); }
.hero h1{
  font-family:var(--serif);
  font-weight:600;
  font-size:56px;
  line-height:1.08;
  letter-spacing:.2px;
  margin:0 0 26px;
}
.hero h1 em{
  font-style:italic;
  color:var(--coral-1);
  background:linear-gradient(135deg, var(--coral-1), var(--coral-2));
  -webkit-background-clip:text; background-clip:text; color:transparent;
}
.hero p.lede{
  color:var(--ink-dim);
  font-size:17px;
  max-width:460px;
  margin:0 0 36px;
  font-weight:300;
}
.hero-actions{ display:flex; align-items:center; gap:28px; flex-wrap:wrap; }
.link-inline{
  display:flex; align-items:center; gap:10px;
  font-size:14.5px; color:var(--ink);
}
.link-inline .ring{
  width:30px; height:30px; border-radius:50%;
  border:1px solid rgba(244,236,224,.35);
  display:flex; align-items:center; justify-content:center;
}

.hero-art{
  position:relative;
  min-height:460px;
}
.hero-art .frame{
  position:absolute; inset:0;
  display:flex; align-items:center; justify-content:center;
}
.title-card{
  position:relative;
  width:78%;
  background:var(--parchment);
  color:#241b12;
  border-radius:4px;
  padding:34px 32px 30px;
  box-shadow:0 40px 80px -20px rgba(0,0,0,.6), 0 0 0 1px rgba(0,0,0,.06);
  transform:rotate(1.5deg);
  font-family:var(--serif);
}
.title-card::before{
  content:""; position:absolute; inset:10px;
  border:1px solid rgba(36,27,18,.15);
  pointer-events:none;
}
.title-card .tag{
  position:absolute; top:-14px; left:26px;
  background:var(--coral-2); color:#fff;
  font-family:var(--sans); font-size:11px; letter-spacing:1px;
  padding:6px 12px; border-radius:3px;
  transform:rotate(-4deg);
  box-shadow:0 8px 16px -6px rgba(0,0,0,.4);
}
.title-card .label{
  font-family:var(--sans); font-size:11px; letter-spacing:1.5px;
  color:#8a7a63; margin-bottom:10px;
}
.title-card h3{
  font-size:26px; font-weight:600; line-height:1.28; margin:0 0 22px;
}
.title-card .kw-label{
  font-family:var(--sans); font-size:10.5px; letter-spacing:1.5px;
  color:#8a7a63; margin-bottom:10px;
}
.chip-row{ display:flex; flex-wrap:wrap; gap:8px; }
.chip{
  font-family:var(--sans); font-size:11.5px;
  padding:6px 12px; border-radius:20px;
  background:rgba(36,27,18,.08); color:#4a3c28;
}
.stack-card{
  position:absolute; top:6%; right:2%;
  width:52%; height:78%;
  background:#e3d7c2; border-radius:4px;
  transform:rotate(6deg);
  box-shadow:0 20px 50px -18px rgba(0,0,0,.5);
  z-index:-1;
}
.floating-feather{
  position:absolute; bottom:-6%; right:-4%;
  width:120px; opacity:.9;
}
.floating-badge{
  position:absolute; bottom:8%; left:-4%;
  background:rgba(21,17,13,.85);
  border:1px solid rgba(244,236,224,.2);
  color:var(--ink);
  font-family:var(--serif); font-style:italic; font-size:15px;
  padding:12px 18px; border-radius:8px;
  backdrop-filter:blur(6px);
}

/* ---------------- feature strip ---------------- */
.feature-strip{
  margin:96px 0 0;
  background:var(--parchment);
  color:#241b12;
}
.feature-strip .wrap{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:0;
}
.feature-item{
  padding:44px 30px;
  display:flex; gap:16px;
  border-left:1px solid rgba(36,27,18,.12);
}
.feature-item:first-child{ border-left:none; }
.feature-item .ic{
  flex:none;
  width:42px; height:42px; border-radius:50%;
  background:rgba(36,27,18,.08);
  display:flex; align-items:center; justify-content:center;
  color:#3a2c1c;
}
.feature-item h4{
  font-family:var(--serif); font-size:17px; font-weight:600;
  margin:2px 0 8px;
}
.feature-item p{
  font-size:13px; color:#6b5c46; margin:0; line-height:1.55;
}

/* ---------------- section shells ---------------- */
.section{ padding:110px 0; }
.section-tight{ padding:80px 0; }
.section-head{
  text-align:center;
  max-width:640px;
  margin:0 auto 64px;
}
.section-head .eyebrow{
  display:flex; align-items:center; justify-content:center; gap:12px;
  color:var(--coral-1); font-size:13px; letter-spacing:2px;
  margin-bottom:18px;
}
.section-head .eyebrow .rule{ width:26px; height:1px; background:var(--coral-1); }
.section-head h2{
  font-family:var(--serif); font-size:40px; font-weight:600;
  margin:0 0 16px; line-height:1.2;
}
.section-head p{ color:var(--ink-dim); font-size:16px; margin:0; }
.section-head.left{ text-align:left; margin:0 0 56px; }
.section-head.left .eyebrow{ justify-content:flex-start; }

.bg-elevated{ background:var(--bg-soft); }

/* grid cards (Features page) */
.grid-cards{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:26px;
}
.grid-cards.two{ grid-template-columns:repeat(2,1fr); }
.card{
  background:var(--bg-elevated);
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  padding:34px 30px;
  transition:border-color .2s ease, transform .2s ease;
}
.card:hover{ border-color:rgba(240,164,136,.35); transform:translateY(-3px); }
.card .ic{
  width:44px; height:44px; border-radius:12px;
  background:linear-gradient(135deg, rgba(240,164,136,.18), rgba(217,123,92,.1));
  border:1px solid rgba(240,164,136,.25);
  display:flex; align-items:center; justify-content:center;
  color:var(--coral-1); margin-bottom:20px;
}
.card h3{ font-family:var(--serif); font-size:20px; font-weight:600; margin:0 0 10px; }
.card p{ font-size:14px; color:var(--ink-dim); margin:0; line-height:1.65; }

/* numbered steps (How It Works) */
.steps{ display:flex; flex-direction:column; gap:0; max-width:760px; margin:0 auto; }
.step{
  display:grid; grid-template-columns:64px 1fr; gap:26px;
  padding:34px 0; border-bottom:1px solid var(--line);
}
.step:last-child{ border-bottom:none; }
.step .num{
  font-family:var(--serif); font-size:32px; color:var(--coral-1);
  font-weight:600; line-height:1;
}
.step h3{ font-family:var(--serif); font-size:20px; margin:0 0 8px; }
.step p{ color:var(--ink-dim); font-size:14.5px; margin:0; max-width:560px; }

/* pipeline diagram */
.pipeline{
  display:flex; align-items:center; justify-content:center;
  gap:14px; flex-wrap:wrap;
  margin:60px 0 0;
}
.pipe-node{
  background:var(--bg-elevated); border:1px solid var(--line);
  border-radius:var(--radius-sm); padding:16px 20px;
  font-size:13px; color:var(--ink-dim); text-align:center; min-width:120px;
}
.pipe-node b{ display:block; color:var(--ink); font-family:var(--serif); font-size:15px; margin-bottom:4px; }
.pipe-arrow{ color:var(--ink-faint); font-size:18px; }

/* ---------------- generator page ---------------- */
.gen-shell{
  display:grid;
  grid-template-columns:1fr 1.18fr;
  gap:36px;
  align-items:start;
}
.gen-panel{
  background:var(--bg-elevated);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:32px 30px;
}
.gen-panel-header{
  display:flex;
  justify-content:space-between;
  align-items:flex-start;
  margin-bottom:18px;
}
.gen-panel h3{ font-family:var(--serif); font-size:22px; margin:0 0 6px; }
.gen-panel .hint{ color:var(--ink-faint); font-size:13px; margin:0; }

/* Input mode tabs */
.input-mode-tabs{
  display:flex;
  gap:6px;
  background:var(--bg);
  border:1px solid var(--line);
  padding:4px;
  border-radius:999px;
  margin-bottom:20px;
  width:fit-content;
}
.mode-tab{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 18px;
  border-radius:999px;
  font-size:13px;
  font-weight:400;
  color:var(--ink-dim);
  background:transparent;
  border:none;
  cursor:pointer;
  transition:all .18s ease;
}
.mode-tab:hover{
  color:var(--ink);
}
.mode-tab.active{
  background:var(--bg-elevated);
  color:var(--coral-1);
  box-shadow:0 2px 10px rgba(0,0,0,.35);
  font-weight:500;
  border:1px solid rgba(240,164,136,.25);
}

/* Upload Dropzone */
.upload-section{
  margin-bottom:20px;
}
.file-dropzone{
  border:2px dashed rgba(244,236,224,.18);
  background:rgba(21,17,13,.55);
  border-radius:var(--radius-md);
  padding:26px 20px;
  text-align:center;
  cursor:pointer;
  transition:all .22s cubic-bezier(0.16, 1, 0.3, 1);
  position:relative;
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:10px;
}
.file-dropzone:hover{
  border-color:rgba(240,164,136,.45);
  background:rgba(240,164,136,.03);
  transform:translateY(-1px);
}
.file-dropzone.dragover{
  border-color:var(--coral-1);
  background:rgba(240,164,136,.09);
  box-shadow:0 0 24px rgba(240,164,136,.18);
  transform:scale(1.01);
}
.dropzone-icon{
  width:46px;
  height:46px;
  border-radius:50%;
  background:rgba(240,164,136,.1);
  border:1px solid rgba(240,164,136,.25);
  display:flex;
  align-items:center;
  justify-content:center;
  color:var(--coral-1);
  transition:transform .2s ease;
}
.file-dropzone:hover .dropzone-icon{
  transform:scale(1.08);
}
.dropzone-text h4{
  font-family:var(--serif);
  font-size:17.5px;
  font-weight:600;
  margin:0 0 4px;
  color:var(--ink);
}
.dropzone-text p{
  font-size:12.5px;
  color:var(--ink-faint);
  margin:0;
}
.btn-link{
  color:var(--coral-1);
  text-decoration:underline;
  text-underline-offset:3px;
  font-weight:400;
  cursor:pointer;
  background:none;
  border:none;
  padding:0;
  font-size:inherit;
}
.btn-link:hover{
  color:#ffab91;
}
.file-types-badge{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:6px;
  flex-wrap:wrap;
  margin-top:2px;
}
.file-types-badge span{
  font-size:10px;
  font-weight:500;
  letter-spacing:.4px;
  padding:2px 7px;
  border-radius:4px;
  background:rgba(244,236,224,.06);
  color:var(--ink-dim);
  border:1px solid rgba(244,236,224,.1);
}
.file-types-badge span.max-size{
  background:transparent;
  border:none;
  color:var(--ink-faint);
  font-size:11px;
}

/* Extraction Progress */
.extract-progress{
  display:flex;
  align-items:center;
  gap:16px;
  background:rgba(21,17,13,.7);
  border:1px solid rgba(240,164,136,.25);
  border-radius:var(--radius-md);
  padding:16px 20px;
  margin-top:12px;
}
.extract-spinner{
  width:22px;
  height:22px;
  border-radius:50%;
  border:2.5px solid rgba(240,164,136,.2);
  border-top-color:var(--coral-1);
  animation:spin .8s linear infinite;
  flex:none;
}
.extract-status-wrap{
  flex:1;
  display:flex;
  flex-direction:column;
  gap:6px;
}
.extract-status{
  font-size:13px;
  color:var(--ink);
  font-weight:400;
}
.extract-bar{
  height:4px;
  border-radius:2px;
  background:var(--line);
  overflow:hidden;
  width:100%;
}
.extract-bar-fill{
  display:block;
  height:100%;
  width:40%;
  background:linear-gradient(90deg, var(--coral-1), var(--coral-2));
  animation:progressIndeterminate 1.4s ease-in-out infinite;
}
@keyframes progressIndeterminate {
  0% { transform:translateX(-100%); width:30%; }
  50% { width:60%; }
  100% { transform:translateX(250%); width:30%; }
}

/* Uploaded File Preview Card */
.uploaded-file-card{
  display:flex;
  align-items:center;
  gap:12px;
  background:rgba(240,164,136,.06);
  border:1px solid rgba(240,164,136,.3);
  border-radius:var(--radius-md);
  padding:12px 16px;
  margin-top:12px;
  animation:dropdownSlideIn .2s ease;
  flex-wrap:wrap;
}
.file-icon-badge{
  width:36px;
  height:36px;
  border-radius:8px;
  background:linear-gradient(135deg, rgba(240,164,136,.2), rgba(217,123,92,.15));
  display:flex;
  align-items:center;
  justify-content:center;
  color:var(--coral-1);
  flex:none;
}
.file-info-col{
  flex:1;
  min-width:180px;
  overflow:hidden;
}
.file-name{
  font-size:13.5px;
  font-weight:500;
  color:var(--ink);
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.file-meta{
  font-size:11.5px;
  color:var(--ink-faint);
  margin-top:2px;
}
.file-card-actions{
  display:flex;
  align-items:center;
  gap:8px;
  flex:none;
}
.doc-mode-toggle{
  display:inline-flex;
  background:rgba(21,17,13,.85);
  border:1px solid var(--line);
  border-radius:999px;
  padding:2px;
  gap:2px;
}
.btn-doc-mode{
  padding:3px 9px;
  font-size:11px;
  border-radius:999px;
  color:var(--ink-dim);
  background:transparent;
  border:none;
  cursor:pointer;
  transition:all .15s ease;
}
.btn-doc-mode:hover{
  color:var(--ink);
}
.btn-doc-mode.active{
  background:rgba(240,164,136,.18);
  color:var(--coral-1);
  font-weight:500;
}
.btn-clear-file{
  width:26px;
  height:26px;
  border-radius:50%;
  background:rgba(244,236,224,.06);
  border:1px solid rgba(244,236,224,.12);
  color:var(--ink-dim);
  display:flex;
  align-items:center;
  justify-content:center;
  cursor:pointer;
  transition:all .15s ease;
  flex:none;
}
.btn-clear-file:hover{
  background:rgba(242,139,130,.18);
  border-color:rgba(242,139,130,.4);
  color:#ffab91;
}

/* Field header with extracted badge */
.field-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  margin-bottom:8px;
  flex-wrap:wrap;
  gap:8px;
}
.field label{
  display:block; font-size:12.5px; letter-spacing:.5px;
  color:var(--ink-dim); margin-bottom:0;
}
.extracted-badge{
  display:inline-flex;
  align-items:center;
  gap:5px;
  font-size:11px;
  color:var(--coral-1);
  background:rgba(240,164,136,.12);
  border:1px solid rgba(240,164,136,.25);
  padding:2px 9px;
  border-radius:999px;
  font-weight:400;
}

.field textarea{
  width:100%;
  min-height:150px;
  max-height:220px;
  resize:vertical;
  background:var(--bg);
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  padding:14px 16px;
  color:var(--ink);
  font-size:14px;
  line-height:1.6;
  font-family:inherit;
}
.field textarea:focus, .field input:focus{ outline:none; border-color:rgba(240,164,136,.5); }
.field textarea::-webkit-scrollbar{ width:6px; }
.field textarea::-webkit-scrollbar-track{ background:transparent; }
.field textarea::-webkit-scrollbar-thumb{ background:rgba(240,164,136,.25); border-radius:3px; }

.field-row{ display:flex; gap:12px; margin-top:14px; flex-wrap:wrap; }
.select-mini{
  background:var(--bg); border:1px solid var(--line); color:var(--ink-dim);
  border-radius:999px; padding:8px 16px; font-size:13px;
}
.gen-footer{
  display:flex; align-items:center; justify-content:space-between;
  margin-top:18px; gap:14px; flex-wrap:wrap;
}
.char-count{ font-size:12px; color:var(--ink-faint); }

.results-col{
  display:flex;
  flex-direction:column;
  gap:16px;
  position:sticky;
  top:96px;
}
.result-card{
  background:var(--bg-elevated);
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  padding:24px 26px;
  transition:border-color .2s ease, transform .15s ease, box-shadow .2s ease;
}
.result-card:hover{
  border-color:rgba(240,164,136,.38);
  box-shadow:0 12px 30px -10px rgba(0,0,0,.5);
  transform:translateY(-1px);
}
.result-card .rtop{
  display:flex;
  justify-content:space-between;
  gap:18px;
  align-items:flex-start;
}
.result-card h4{
  font-family:var(--serif);
  font-size:20.5px;
  font-weight:600;
  margin:0;
  line-height:1.38;
  color:var(--ink);
  flex:1;
  word-break:break-word;
}
.result-actions{ display:flex; gap:8px; flex:none; margin-top:2px; }
.icon-btn{
  width:34px; height:34px; border-radius:8px;
  background:transparent; border:1px solid var(--line);
  color:var(--ink-dim); display:flex; align-items:center; justify-content:center;
  transition:all .15s ease;
}
.icon-btn:hover{ border-color:rgba(240,164,136,.5); color:var(--coral-1); }
.icon-btn.active{ background:rgba(240,164,136,.14); border-color:rgba(240,164,136,.5); color:var(--coral-1); }
.rmeta{ display:flex; align-items:center; gap:16px; margin-top:14px; flex-wrap:wrap; }
.score{ display:flex; align-items:center; gap:8px; font-size:12.5px; color:var(--ink-dim); }
.score-bar{ width:70px; height:5px; border-radius:3px; background:var(--line); overflow:hidden; }
.score-bar span{ display:block; height:100%; background:linear-gradient(90deg, var(--coral-1), var(--coral-2)); }
.kw-mini{ display:flex; gap:6px; flex-wrap:wrap; }
.kw-mini .chip{ background:rgba(240,164,136,.1); color:var(--coral-1); font-size:11px; padding:4px 10px; }

.empty-state{
  border:1px dashed var(--line); border-radius:var(--radius-md);
  padding:60px 30px; text-align:center; color:var(--ink-faint);
}
.empty-state svg{ margin:0 auto 16px; opacity:.6; }

.skeleton{
  height:82px; border-radius:var(--radius-md);
  background:linear-gradient(100deg, var(--bg-elevated) 30%, var(--bg-soft) 50%, var(--bg-elevated) 70%);
  background-size:200% 100%;
  animation:shimmer 1.3s infinite;
}
@keyframes shimmer{ from{background-position:200% 0;} to{background-position:-200% 0;} }

.toast{
  position:fixed; bottom:28px; left:50%; translate:-50% 0;
  background:var(--parchment); color:#241b12;
  padding:13px 22px; border-radius:999px; font-size:13.5px;
  box-shadow:0 20px 40px -12px rgba(0,0,0,.5);
  display:flex; align-items:center; gap:10px;
  opacity:0; pointer-events:none; transition:opacity .25s ease, transform .25s ease;
  z-index:200;
}
.toast.show{ opacity:1; transform:translateY(-6px); }

/* tabs (history/favorites) */
.tabs{ display:flex; gap:8px; margin-bottom:32px; }
.tab-btn{
  padding:10px 20px; border-radius:999px; border:1px solid var(--line);
  background:transparent; color:var(--ink-dim); font-size:13.5px;
}
.tab-btn.active{ background:var(--ink); color:var(--bg); border-color:var(--ink); }

/* explore papers */
.paper-grid{ display:grid; grid-template-columns:repeat(2,1fr); gap:20px; }
.paper-card{
  background:var(--bg-elevated); border:1px solid var(--line);
  border-radius:var(--radius-md); padding:26px;
}
.paper-card .arxiv-tag{
  display:inline-block; font-size:10.5px; letter-spacing:1px;
  color:var(--coral-1); border:1px solid rgba(240,164,136,.35);
  padding:3px 9px; border-radius:4px; margin-bottom:14px;
}
.paper-card h4{ font-family:var(--serif); font-size:17.5px; margin:0 0 10px; line-height:1.4; }
.paper-card .meta{ font-size:12.5px; color:var(--ink-faint); margin-bottom:14px; }
.paper-card .abstract{ font-size:13px; color:var(--ink-dim); line-height:1.6; }
.filter-row{ display:flex; gap:10px; margin-bottom:36px; flex-wrap:wrap; }

/* auth pages */
.auth-shell{
  min-height:calc(100vh - 84px);
  display:flex; align-items:center; justify-content:center;
  padding:60px 24px;
}
.auth-card{
  width:100%; max-width:420px;
  background:var(--bg-elevated); border:1px solid var(--line);
  border-radius:var(--radius-lg); padding:44px 38px;
}
.auth-card h2{ font-family:var(--serif); font-size:28px; margin:0 0 8px; }
.auth-card .sub{ color:var(--ink-faint); font-size:14px; margin:0 0 30px; }
.field-group{ margin-bottom:18px; }
.field-group label{ display:block; font-size:12.5px; color:var(--ink-dim); margin-bottom:8px; }
.field-group input{
  width:100%; background:var(--bg); border:1px solid var(--line);
  border-radius:var(--radius-sm); padding:13px 16px;
  color:var(--ink); font-size:14px;
}
.field-error{ color:#e08a72; font-size:12px; margin-top:6px; display:none; }
.auth-foot{ margin-top:24px; text-align:center; font-size:13.5px; color:var(--ink-faint); }
.auth-foot a{ color:var(--coral-1); }
.form-msg{ font-size:13px; margin-bottom:16px; padding:11px 14px; border-radius:8px; display:none; }
.form-msg.err{ background:rgba(224,138,114,.12); color:#e8a488; display:block; }
.form-msg.ok{ background:rgba(140,197,150,.12); color:#8cc596; display:block; }

/* about page */
.stack-list{ display:grid; grid-template-columns:repeat(2,1fr); gap:14px; }
.stack-row{
  display:flex; justify-content:space-between; align-items:center;
  padding:16px 20px; background:var(--bg-elevated);
  border:1px solid var(--line); border-radius:10px; font-size:14px;
}
.stack-row span:first-child{ color:var(--ink-dim); }
.stack-row span:last-child{ color:var(--coral-1); font-family:var(--serif); font-style:italic; }

/* footer */
.site-footer{
  border-top:1px solid var(--line-soft);
  padding:56px 0 34px;
  color:var(--ink-faint); font-size:13.5px;
}
.site-footer .wrap{
  display:flex; justify-content:space-between; align-items:center;
  flex-wrap:wrap; gap:20px;
}
.footer-links{ display:flex; gap:26px; }
.footer-links a:hover{ color:var(--ink); }

/* misc */
.mt-0{ margin-top:0 }
.center{ text-align:center; }
.spinner{
  width:16px; height:16px; border-radius:50%;
  border:2px solid rgba(42,20,12,.25); border-top-color:var(--coral-ink);
  animation:spin .7s linear infinite;
}
@keyframes spin{ to{ transform:rotate(360deg); } }

/* ---------------- responsive ---------------- */
@media (max-width: 980px){
  .hero .wrap{ grid-template-columns:1fr; }
  .hero-art{ min-height:360px; order:-1; }
  .hero h1{ font-size:42px; }
  .feature-strip .wrap{ grid-template-columns:repeat(2,1fr); }
  .feature-item{ border-left:none; border-top:1px solid rgba(36,27,18,.12); }
  .feature-item:first-child{ border-top:none; }
  .grid-cards{ grid-template-columns:repeat(2,1fr); }
  .gen-shell{ grid-template-columns:1fr; }
  .paper-grid{ grid-template-columns:1fr; }
  .stack-list{ grid-template-columns:1fr; }
}
@media (max-width: 720px){
  .nav-links{ display:none; }
  .wrap{ padding:0 20px; }
  .hero h1{ font-size:34px; }
  .grid-cards{ grid-template-columns:1fr; }
  .section{ padding:70px 0; }
  .section-head h2{ font-size:30px; }
}