/* =========================================================
   Basa Indramayu NLP — design tokens
   Palette: white ground, batik-gold accent (#D4A800)
   Type: Fraunces (display) + Plus Jakarta Sans (body) + JetBrains Mono (data)
   Signature: a hand-drawn gold "gelombang" (wave) line, echoing
   Indramayu's coastline and its batik tulis "ombak" motif —
   used as the one recurring flourish across every page.
   ========================================================= */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,400;9..144,500;9..144,600;9..144,700&family=Plus+Jakarta+Sans:wght@400;500;600;700;800&family=JetBrains+Mono:wght@400;500&display=swap');

:root{
  --bg:            #FFFFFF;
  --bg-tint:       #FFF8E7;
  --bg-tint-2:     #FBF3DC;
  --accent:        #D4A800;
  --accent-dark:   #A98300;
  --accent-ink:    #4E3F00;
  --ink:           #1F1B16;
  --ink-muted:     #6B6156;
  --ink-faint:     #9A907F;
  --line:          #E8E1D3;
  --line-strong:   #D8CDB4;
  --success:       #2E7D4F;
  --danger:        #B23B2E;

  --font-display: 'Fraunces', Georgia, serif;
  --font-body: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, monospace;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;

  --shadow-card: 0 1px 2px rgba(31,27,22,0.04), 0 8px 24px -12px rgba(31,27,22,0.12);
  --shadow-lift: 0 4px 10px rgba(31,27,22,0.06), 0 16px 40px -16px rgba(212,168,0,0.35);

  --container: 1120px;
}

*, *::before, *::after{ box-sizing: border-box; }
html, body {
  scroll-behavior: smooth;
  overflow-x: hidden;
  max-width: 100%;
}
body{
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

img, svg{ display:block; max-width:100%; }
a{ color: inherit; text-decoration: none; }
button{ font-family: inherit; cursor:pointer; }
h1,h2,h3,h4{ font-family: var(--font-display); margin: 0; color: var(--ink); }
p{ margin: 0; }
ul{ margin:0; padding:0; list-style:none; }

.wrap{
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 28px;
}

:focus-visible{
  outline: 2.5px solid var(--accent-dark);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ---------- eyebrow / tag chips ---------- */
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--accent-dark);
  background: var(--bg-tint);
  border: 1px solid var(--line-strong);
  padding: 6px 12px;
  border-radius: 999px;
}
.eyebrow::before{
  content:"";
  width:6px; height:6px;
  border-radius:50%;
  background: var(--accent);
}

/* ---------- header / nav ---------- */
.site-header{
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,0.88);
  backdrop-filter: blur(10px);
  border-bottom: none;
}
.site-header .wrap{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height: 76px;
}
.brand{
  display:flex;
  align-items:center;
  gap:12px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 19px;
  color: var(--ink);
}
.brand-mark{
  width: 36px; height:36px;
  border-radius: 10px;
  background: var(--accent);
  display:flex; align-items:center; justify-content:center;
  color:#fff;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  flex: none;
}
.brand small{
  display:block;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 400;
  letter-spacing:.04em;
  color: var(--ink-muted);
  text-transform: uppercase;
}

.nav-links{
  display:flex;
  align-items:center;
  gap: 4px;
}
.nav-links a{
  position: relative;
  padding: 9px 14px;
  border-radius: 999px;
  font-size: 14.5px;
  font-weight: 600;
  color: var(--ink-muted);
  transition: color .15s ease, background .15s ease;
  white-space: nowrap;
}
.nav-links a:hover{ color: var(--ink); background: var(--bg-tint); }
.nav-links a.is-active{
  color: var(--accent-ink);
  background: var(--bg-tint-2);
}

.nav-toggle{
  display:none;
  width: 42px; height:42px;
  border-radius: 10px;
  border: 1px solid var(--line-strong);
  background: var(--bg);
  align-items:center; justify-content:center;
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after{
  content:"";
  display:block;
  width:18px; height:2px;
  background: var(--ink);
  position:relative;
  transition: transform .2s ease, opacity .2s ease;
}
.nav-toggle span::before{ position:absolute; top:-6px; }
.nav-toggle span::after{ position:absolute; top:6px; }

@media (max-width: 860px){
  .nav-toggle{ display:flex; }
  .nav-links{
    position:absolute;
    top: 76px; left:0; right:0;
    background: var(--bg);
    border-bottom: 1px solid var(--line);
    flex-direction:column;
    align-items:stretch;
    padding: 10px 20px 18px;
    gap: 2px;
    display: none;
    box-shadow: var(--shadow-card);
  }
  .nav-links.is-open{ display:flex; }
  .nav-links a{ padding: 12px 14px; border-radius: var(--radius-sm); }
}

/* ---------- signature wave divider (batik "ombak" line) ---------- */
.wave-divider{
  width:100%;
  height: 34px;
  color: var(--accent);
  opacity: .55;
}
.wave-divider svg{ width:100%; height:100%; }

/* ---------- hero ---------- */
.hero{
  padding: 76px 0 40px;
  position: relative;
  overflow: hidden;
}
.hero-grid{
  display:grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 56px;
  align-items:center;
}
.hero h1{
  font-size: clamp(34px, 4.6vw, 54px);
  line-height: 1.08;
  font-weight: 600;
  letter-spacing: -0.01em;
}
.hero h1 em{
  font-style: normal;
  color: var(--accent-dark);
  background: linear-gradient(180deg, transparent 62%, var(--bg-tint-2) 62%);
}
.hero p.lede{
  margin-top: 20px;
  font-size: 17.5px;
  color: var(--ink-muted);
  max-width: 46ch;
}
.hero-actions{
  display:flex; gap: 12px; margin-top: 30px; flex-wrap: wrap;
}

.btn{
  display:inline-flex;
  align-items:center;
  gap: 8px;
  padding: 13px 22px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 14.5px;
  border: 1px solid transparent;
  transition: transform .15s ease, box-shadow .15s ease, background .15s ease;
}
.btn:hover{ transform: translateY(-1px); }
.btn-primary{
  background: var(--accent);
  color: #fff;
  box-shadow: var(--shadow-lift);
}
.btn-primary:hover{ background: var(--accent-dark); }
.btn-ghost{
  background: var(--bg);
  color: var(--ink);
  border-color: var(--line-strong);
}
.btn-ghost:hover{ background: var(--bg-tint); }

.hero-stats{
  display:flex;
  gap: 26px;
  margin-top: 40px;
  flex-wrap: wrap;
}
.hero-stats div strong{
  display:block;
  font-family: var(--font-display);
  font-size: 26px;
  color: var(--ink);
}
.hero-stats div span{
  font-family: var(--font-mono);
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--ink-muted);
}

.hero-panel{
  background: var(--bg-tint);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  padding: 26px;
  position: relative;
}
.hero-panel-row{
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding: 12px 4px;
  border-bottom: 1px dashed var(--line-strong);
  font-family: var(--font-mono);
  font-size: 13px;
}
.hero-panel-row:last-child{ border-bottom:none; }
.hero-panel-row .status{
  display:inline-flex; align-items:center; gap:6px;
  color: var(--success);
  font-weight: 600;
}
.hero-panel-row .status::before{
  content:""; width:7px; height:7px; border-radius:50%; background: var(--success);
}

/* ---------- section headings ---------- */
.section{ padding: 64px 0; }
.section-head{
  max-width: 640px;
  margin-bottom: 40px;
}
.section-head h2{
  font-size: clamp(26px, 3vw, 34px);
  margin-top: 14px;
  font-weight: 600;
}
.section-head p{
  margin-top: 12px;
  color: var(--ink-muted);
  font-size: 16px;
}

/* ---------- model cards grid ---------- */
.model-grid{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
@media (max-width: 900px){ .model-grid{ grid-template-columns: repeat(2,1fr); } }
@media (max-width: 620px){ .model-grid{ grid-template-columns: 1fr; } }

.model-card{
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 26px;
  display:flex;
  flex-direction:column;
  gap: 14px;
  transition: border-color .15s ease, box-shadow .15s ease, transform .15s ease;
}
.model-card:hover{
  border-color: var(--accent);
  box-shadow: var(--shadow-card);
  transform: translateY(-2px);
}
.model-card .glyph{
  width: 44px; height:44px;
  border-radius: 12px;
  background: var(--bg-tint);
  color: var(--accent-dark);
  display:flex; align-items:center; justify-content:center;
}
.model-card .glyph svg{ width:22px; height:22px; }
.model-card h3{ font-size: 19px; font-weight: 600; }
.model-card p{ color: var(--ink-muted); font-size: 14.5px; flex:1; }
.model-card .tag-row{
  display:flex; gap:8px; flex-wrap:wrap;
}
.tag{
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: .04em;
  color: var(--ink-muted);
  background: var(--bg-tint);
  border: 1px solid var(--line);
  padding: 4px 9px;
  border-radius: 999px;
}
.model-card .card-link{
  margin-top: 4px;
  font-weight: 700;
  font-size: 14px;
  color: var(--accent-dark);
  display:inline-flex; align-items:center; gap:6px;
}
.model-card .card-link svg{ width:14px; height:14px; transition: transform .15s ease; }
.model-card:hover .card-link svg{ transform: translateX(3px); }

/* ---------- feature / playground layout ---------- */
.feature-hero{
  padding: 52px 0 30px;
  border-bottom: 1px solid var(--line);
}
.feature-hero .eyebrow{ margin-bottom: 18px; }
.feature-hero h1{ font-size: clamp(28px, 4vw, 40px); font-weight: 600; }
.feature-hero p.lede{
  margin-top: 14px;
  color: var(--ink-muted);
  font-size: 16.5px;
  max-width: 62ch;
}
.feature-meta{
  display:flex; gap:10px; margin-top: 20px; flex-wrap:wrap;
}

.playground{
  padding: 48px 0 80px;
}
.playground-grid{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  align-items: start;
}
@media (max-width: 880px){ .playground-grid{ grid-template-columns: 1fr; } }

.panel{
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 24px;
}
.panel-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  margin-bottom: 16px;
}
.panel-head h3{
  font-size: 13px;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--ink-muted);
}

.field-label{
  display:block;
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--ink);
}
textarea, input[type="text"], select{
  width:100%;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  padding: 13px 14px;
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--ink);
  background: var(--bg);
  resize: vertical;
  transition: border-color .15s ease, box-shadow .15s ease;
}
textarea:focus, input[type="text"]:focus, select:focus{
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(212,168,0,0.15);
  outline: none;
}
.field{ margin-bottom: 16px; }
.field-row{ display:grid; grid-template-columns: 1fr 1fr; gap: 12px; }

.example-row{
  display:flex; gap:8px; flex-wrap:wrap; margin-bottom: 16px;
}
.chip-btn{
  font-family: var(--font-mono);
  font-size: 12px;
  padding: 7px 12px;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  background: var(--bg-tint);
  color: var(--ink-muted);
}
.chip-btn:hover{ border-color: var(--accent); color: var(--accent-ink); }

.panel-actions{
  display:flex; align-items:center; gap:12px; margin-top: 4px;
}
.hint{ font-size:12.5px; color: var(--ink-faint); }

.output-box{
  min-height: 220px;
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius-sm);
  background: var(--bg-tint);
  padding: 18px;
  font-size: 14.5px;
  color: var(--ink-muted);
}
.output-box.is-empty{
  display:flex; align-items:center; justify-content:center;
  text-align:center;
}
.output-box .empty-msg{ max-width: 34ch; }
.output-box.is-ready{ border-style: solid; background: var(--bg); color: var(--ink); }

.status-badge{
  font-family: var(--font-mono);
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: .05em;
  padding: 5px 10px;
  border-radius: 999px;
  background: var(--bg-tint);
  color: var(--ink-muted);
  border: 1px solid var(--line);
}
.status-badge.is-busy{ color: var(--accent-dark); background: var(--bg-tint-2); }
.status-badge.is-done{ color: var(--success); background: #EAF6EE; border-color: #CFE9D8; }

/* result element helpers reused by scripts */
.entity{
  display:inline-block;
  padding: 1px 6px 2px;
  border-radius: 6px;
  background: var(--bg-tint-2);
  border: 1px solid var(--line-strong);
  margin: 0 1px;
}
.entity sup{
  font-family: var(--font-mono);
  font-size: 9px;
  color: var(--accent-dark);
  margin-left: 3px;
  text-transform: uppercase;
}
.pos-token{
  display:inline-flex;
  flex-direction: column;
  align-items:center;
  margin: 4px 5px;
  font-family: var(--font-mono);
}
.pos-token .w{ font-size: 15px; color: var(--ink); font-family: var(--font-body); font-weight:600; }
.pos-token .t{
  font-size: 10px;
  color: #fff;
  background: var(--accent);
  padding: 1px 6px;
  border-radius: 5px;
  margin-top: 4px;
}
.pos-line{ display:flex; flex-wrap:wrap; }

.sentiment-result{ display:flex; align-items:center; gap:16px; }
.sentiment-badge{
  font-family: var(--font-display);
  font-size: 20px;
  font-weight:600;
  padding: 10px 18px;
  border-radius: var(--radius-sm);
}
.sentiment-badge.pos{ background:#EAF6EE; color:var(--success); }
.sentiment-badge.neg{ background:#FBEAE7; color:var(--danger); }
.sentiment-badge.neu{ background: var(--bg-tint-2); color: var(--accent-ink); }
.meter{ flex:1; }
.meter-row{ display:flex; align-items:center; gap:10px; margin-bottom:8px; font-size:13px; }
.meter-row span:first-child{ width:64px; color: var(--ink-muted); }
.meter-track{ flex:1; height:8px; border-radius:99px; background: var(--bg-tint); overflow:hidden; }
.meter-fill{ height:100%; background: var(--accent); border-radius:99px; }
.meter-row span:last-child{ width:38px; text-align:right; font-family: var(--font-mono); font-size:12px; color: var(--ink-muted); }

.qa-answer{
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 10px;
}
.qa-span{ background: var(--bg-tint-2); padding: 1px 4px; border-radius: 4px; }
.qa-confidence{ font-family: var(--font-mono); font-size: 12px; color: var(--ink-muted); }

.translate-result{ font-size: 17px; line-height:1.6; }
.translate-lang{
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  color: var(--accent-dark);
  margin-bottom: 8px;
  display:block;
}

/* ---------- integration note ---------- */
.integration-note{
  margin-top: 24px;
  padding: 16px 18px;
  border-radius: var(--radius-sm);
  background: var(--bg-tint);
  border: 1px solid var(--line-strong);
  font-size: 13px;
  color: var(--ink-muted);
}
.integration-note code{
  font-family: var(--font-mono);
  background: var(--bg);
  border: 1px solid var(--line);
  padding: 1px 6px;
  border-radius: 5px;
  color: var(--accent-ink);
}

/* ---------- footer ---------- */
.site-footer{
  border-top: 1px solid var(--line);
  padding: 40px 0;
  margin-top: 40px;
}
.site-footer .wrap{
  display:flex;
  justify-content:space-between;
  align-items:center;
  flex-wrap: wrap;
  gap: 16px;
}
.site-footer p{ font-size: 13.5px; color: var(--ink-faint); }
.footer-links{ display:flex; gap: 18px; }
.footer-links a{ font-size: 13.5px; color: var(--ink-muted); font-weight:600; }
.footer-links a:hover{ color: var(--accent-dark); }

@media (max-width: 880px){
  .hero-grid{ grid-template-columns: 1fr; }
}

/* ---------- Responsive Mobile Navigation & Layout Rules ---------- */
@media (max-width: 860px){
  .site-header {
    padding-top: 10px;
  }
  .site-header .wrap {
    height: 56px;
    padding: 0 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
  }
  body.landing .site-header .wrap {
    height: 56px;
  }
  .nav-toggle {
    display: flex;
    order: 2;
    margin-left: auto;
  }
  .nav-actions {
    display: none !important;
  }
  .nav-links {
    position: absolute;
    top: calc(100% + 10px);
    left: 0;
    right: 0;
    background: #ffffff;
    border: 1px solid var(--line-strong);
    border-radius: 20px;
    box-shadow: 0 16px 40px rgba(31, 27, 22, 0.18);
    padding: 18px;
    display: none;
    flex-direction: column;
    gap: 8px;
    z-index: 100;
  }
  .nav-links.is-open {
    display: flex;
  }
  .nav-links a {
    width: 100%;
    text-align: center;
    padding: 10px 16px;
    border-radius: 12px;
  }
  .nav-links .mobile-nav-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding-top: 12px;
    margin-top: 6px;
    border-top: 1px solid var(--line);
    gap: 10px;
  }
  .nav-links .mobile-nav-footer .btn-dark {
    flex: 1;
    text-align: center;
    justify-content: center;
  }
}

@media (max-width: 600px){
  .site-header .wrap {
    height: 52px;
    padding: 0 12px;
  }
  .brand {
    font-size: 15px;
    gap: 8px;
  }
  .brand-mark {
    width: 30px;
    height: 30px;
    font-size: 11px;
    border-radius: 8px;
  }
  .brand small {
    display: none;
  }
  .site-footer .wrap{
    flex-direction: column;
    text-align: center;
    justify-content: center;
  }
  .footer-links{
    justify-content: center;
    flex-wrap: wrap;
  }
}

/* ---------- Scroll Progress Bar & Morph Reveal Animations ---------- */
.scroll-progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), #EC5A8C, #3E6FF2);
  z-index: 9999;
  width: 0%;
  transition: width 0.1s linear;
  border-radius: 0 2px 2px 0;
  box-shadow: 0 0 10px rgba(212, 168, 0, 0.5);
}

.scroll-morph {
  opacity: 0;
  transform: translateY(50px) scale(0.92);
  filter: blur(6px);
  transition: transform 0.75s cubic-bezier(0.16, 1, 0.3, 1),
              opacity 0.75s cubic-bezier(0.16, 1, 0.3, 1),
              filter 0.75s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: transform, opacity, filter;
}

.scroll-morph.is-visible {
  opacity: 1;
  transform: translateY(0) scale(1);
  filter: blur(0px);
}

/* Card Morphing on Hover */
.model-card {
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1),
              box-shadow 0.4s cubic-bezier(0.16, 1, 0.3, 1),
              border-radius 0.4s cubic-bezier(0.16, 1, 0.3, 1),
              border-color 0.3s ease;
}
.model-card:hover {
  transform: translateY(-8px) scale(1.02);
  border-radius: 32px 14px 32px 14px !important;
  box-shadow: 0 20px 45px -15px rgba(212,168,0,0.25);
  border-color: var(--accent);
}

@media (prefers-reduced-motion: reduce){
  *{ animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
  .scroll-morph {
    opacity: 1 !important;
    transform: none !important;
    filter: none !important;
    transition: none !important;
    border-radius: inherit !important;
  }
}