/* ==========================================================
   Structura — design tokens
   ========================================================== */
:root{
  --bg: #0a0a0f;
  --bg-soft: #101018;
  --surface: #16151d;
  --surface-2: #1c1b25;
  --surface-3: #232230;
  --border: rgba(255,255,255,0.08);
  --border-strong: rgba(255,255,255,0.14);

  --text: #f4f2f8;
  --text-muted: #9995a8;
  --text-dim: #6b6878;

  --accent-1: #9b86f8;
  --accent-2: #cbb6ff;
  --accent-grad: linear-gradient(135deg, var(--accent-1), var(--accent-2));

  --success: #6ee7a8;
  --warning: #f5c97b;
  --danger: #f4877e;

  --cream: #f3f1f9;

  --radius-lg: 28px;
  --radius-md: 18px;
  --radius-sm: 10px;

  --font-display: 'Clash Display', 'Satoshi', sans-serif;
  --font-body: 'Satoshi', 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --shadow-panel: 0 40px 90px -30px rgba(0,0,0,0.65);
}

*,*::before,*::after{ box-sizing: border-box; }

html{ scroll-behavior: smooth; }

body{
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  *, *::before, *::after{ animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
}

h1,h2,h3,h4{
  font-family: var(--font-display);
  font-weight: 600;
  margin: 0;
  letter-spacing: -0.01em;
  color: var(--text);
}

p{ margin: 0; }

a{ color: inherit; text-decoration: none; }

button{ font-family: inherit; }

::selection{ background: var(--accent-1); color: #0a0a0f; }

.gradient-text{
  background: var(--accent-grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ambient background glow */
body::before{
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(700px 420px at 18% -6%, rgba(155,134,248,0.16), transparent 60%),
    radial-gradient(600px 500px at 88% 8%, rgba(203,182,255,0.10), transparent 60%),
    var(--bg);
}

/* ==========================================================
   Buttons
   ========================================================== */
.btn{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 22px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.92rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .18s ease, background .18s ease, border-color .18s ease, opacity .18s ease;
  white-space: nowrap;
}
.btn:active{ transform: scale(0.97); }

.btn-primary{
  background: var(--cream);
  color: #17151f;
}
.btn-primary:hover{ background: #ffffff; }
.btn-primary:disabled{ opacity: .5; cursor: not-allowed; }

.btn-outline{
  background: transparent;
  border-color: var(--border-strong);
  color: var(--text);
}
.btn-outline:hover{ border-color: var(--accent-1); }

.btn-ghost{
  background: transparent;
  color: var(--text-muted);
  padding: 10px 14px;
}
.btn-ghost:hover{ color: var(--text); }

.btn-lg{ padding: 14px 28px; font-size: 1rem; }
.btn-block{ width: 100%; }

.icon-btn{
  width: 36px; height: 36px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text-muted);
  display: inline-flex; align-items: center; justify-content: center;
  cursor: pointer;
  transition: color .15s ease, border-color .15s ease;
}
.icon-btn:hover{ color: var(--text); border-color: var(--border-strong); }

/* ==========================================================
   Nav
   ========================================================== */
.nav{
  position: sticky;
  top: 0;
  z-index: 50;
  padding: 18px 24px 0;
}
.nav-inner{
  max-width: 1180px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 10px 14px 10px 20px;
  background: rgba(20,19,27,0.72);
  border: 1px solid var(--border);
  border-radius: 999px;
  backdrop-filter: blur(14px);
}
.brand{
  display: flex;
  align-items: center;
  gap: 9px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--text);
  margin-right: auto;
}
.brand-mark{ color: var(--text-muted); display: inline-flex; }

.nav-links{
  display: flex;
  gap: 26px;
  font-size: 0.92rem;
  color: var(--text-muted);
}
.nav-links a:hover{ color: var(--text); }

.nav-actions{ display: flex; align-items: center; gap: 8px; }

.nav-burger{
  display: none;
  width: 36px; height: 36px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: transparent;
  align-items: center; justify-content: center;
  cursor: pointer;
}
.nav-burger span{
  display: block; width: 16px; height: 1.5px; background: var(--text); margin: 2px 0;
}
.nav-mobile{
  display: none;
  flex-direction: column;
  gap: 4px;
  max-width: 1180px;
  margin: 8px auto 0;
  padding: 10px 20px 16px;
  background: rgba(20,19,27,0.92);
  border: 1px solid var(--border);
  border-radius: 20px;
}
.nav-mobile a{
  padding: 10px 4px;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
  font-size: 0.95rem;
}
.nav-mobile .btn{ margin-top: 10px; }
.nav-mobile.is-open{ display: flex; }

@media (max-width: 880px){
  .nav-links, .nav-actions{ display: none; }
  .nav-burger{ display: inline-flex; }
}

/* ==========================================================
   Hero
   ========================================================== */
.hero{
  max-width: 880px;
  margin: 0 auto;
  padding: 92px 24px 40px;
  text-align: center;
}
.eyebrow{
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 18px;
}
.hero h1{
  font-size: clamp(2.1rem, 5vw, 3.4rem);
  line-height: 1.12;
}
.hero-sub{
  max-width: 620px;
  margin: 22px auto 0;
  color: var(--text-muted);
  font-size: 1.05rem;
}
.hero-cta{
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-top: 30px;
  flex-wrap: wrap;
}
.hero-stats{
  display: flex;
  justify-content: center;
  gap: 40px;
  margin-top: 56px;
  flex-wrap: wrap;
}
.hero-stats div{ text-align: left; }
.hero-stats strong{
  display: block;
  font-family: var(--font-display);
  font-size: 1.6rem;
  color: var(--accent-2);
}
.hero-stats span{
  font-size: 0.82rem;
  color: var(--text-dim);
}

/* ==========================================================
   Studio panel
   ========================================================== */
.studio-wrap{
  max-width: 1180px;
  margin: 30px auto 100px;
  padding: 0 20px;
}
.studio-frame{
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-panel);
  overflow: hidden;
}

.studio-topbar{
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 16px 22px;
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}
.studio-brand{
  display: flex; align-items: center; gap: 9px;
  font-weight: 600;
  font-size: 0.95rem;
  margin-right: 6px;
}
.dot-status{
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 0 3px rgba(110,231,168,0.16);
  flex-shrink: 0;
}
.dot-status.is-busy{ background: var(--warning); box-shadow: 0 0 0 3px rgba(245,201,123,0.18); }
.dot-status.is-error{ background: var(--danger); box-shadow: 0 0 0 3px rgba(244,135,126,0.18); }

.studio-tabs{
  display: flex;
  gap: 4px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 4px;
  flex-wrap: wrap;
}
.studio-tab{
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-size: 0.85rem;
  font-weight: 500;
  padding: 8px 16px;
  border-radius: 999px;
  cursor: pointer;
  transition: background .15s ease, color .15s ease;
}
.studio-tab.is-active{
  background: var(--surface-3);
  color: var(--text);
}
.studio-actions{
  display: flex;
  align-items: center;
  gap: 10px;
  margin-left: auto;
}
.badge-local{
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-dim);
  border: 1px solid var(--border);
  padding: 6px 12px;
  border-radius: 999px;
  white-space: nowrap;
}

.studio-body{ padding: 22px; }

.card-grid{
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 16px;
}
@media (max-width: 980px){
  .card-grid{ grid-template-columns: 1fr; }
}

.s-card{
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px;
}
.s-card-head{
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 16px;
}
.s-card-head h3{ font-size: 1.02rem; margin-bottom: 4px; }
.muted{ color: var(--text-dim); font-size: 0.82rem; }

.s-card-icon{
  width: 34px; height: 34px;
  border-radius: 10px;
  display: inline-flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.icon-purple{ background: rgba(155,134,248,0.16); color: var(--accent-2); }
.icon-lilac{ background: rgba(203,182,255,0.14); color: var(--accent-2); }
.icon-ink{ background: rgba(255,255,255,0.06); color: var(--text-muted); }

/* Dropzones */
.dropzone{
  display: flex;
  align-items: center;
  gap: 10px;
  border: 1.5px dashed var(--border-strong);
  border-radius: var(--radius-sm);
  padding: 18px 16px;
  color: var(--text-muted);
  font-size: 0.86rem;
  cursor: pointer;
  transition: border-color .15s ease, background .15s ease;
}
.dropzone:hover, .dropzone:focus-visible{
  border-color: var(--accent-1);
  background: rgba(155,134,248,0.06);
  outline: none;
}
.dropzone.is-dragover{
  border-color: var(--accent-1);
  background: rgba(155,134,248,0.1);
}
.dropzone.has-file{ border-style: solid; border-color: rgba(110,231,168,0.4); color: var(--text); }
.dropzone-sm{ padding: 14px 16px; margin-bottom: 14px; }

.ref-stats{ margin-top: 16px; }
.stat-row{
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
  padding: 7px 0;
  border-bottom: 1px solid var(--border);
  color: var(--text-muted);
}
.stat-row b{ color: var(--text); font-family: var(--font-mono); font-weight: 500; }
.stat-row:last-of-type{ border-bottom: none; }

.section-chips{
  display: flex; flex-wrap: wrap; gap: 6px; margin-top: 12px;
}
.section-chips span{
  font-size: 0.72rem;
  font-family: var(--font-mono);
  padding: 5px 10px;
  border-radius: 999px;
  background: var(--surface-3);
  color: var(--accent-2);
  border: 1px solid var(--border);
}

.mat-stats{
  display: flex;
  gap: 18px;
  margin-bottom: 14px;
}
.mat-stats div{ text-align: left; }
.mat-stats b{
  display: block;
  font-family: var(--font-mono);
  font-size: 1.15rem;
  color: var(--accent-2);
}
.mat-stats span{ font-size: 0.72rem; color: var(--text-dim); }

.file-list{
  list-style: none;
  margin: 0; padding: 0;
  max-height: 150px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.file-list li{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  font-size: 0.82rem;
  color: var(--text-muted);
}
.file-list li b{ color: var(--text); font-weight: 500; }
.file-list .file-remove{
  border: none; background: transparent; color: var(--text-dim); cursor: pointer;
  font-size: 1rem; line-height: 1; padding: 2px 4px;
}
.file-list .file-remove:hover{ color: var(--danger); }
.file-list-empty{ color: var(--text-dim); font-size: 0.82rem; padding: 8px 2px; }

/* Settings card */
.ai-note{
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 16px;
}
.field-label{
  display: block;
  font-size: 0.78rem;
  color: var(--text-dim);
  margin-bottom: 6px;
}
.key-field{
  display: flex;
  gap: 6px;
  margin-bottom: 14px;
}
input[type="password"], input[type="text"], select{
  width: 100%;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  color: var(--text);
  font-size: 0.86rem;
  font-family: var(--font-mono);
}
select{ margin-bottom: 14px; font-family: var(--font-body); }
input:focus, select:focus{ outline: none; border-color: var(--accent-1); }

.ai-status{
  margin-top: 10px;
  font-size: 0.78rem;
  color: var(--text-dim);
}
.ai-status.is-ok{ color: var(--success); }
.ai-status.is-bad{ color: var(--danger); }

/* Export wide card */
.export-card{
  margin-top: 16px;
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 24px;
  align-items: center;
}
@media (max-width: 780px){
  .export-card{ grid-template-columns: 1fr; }
}
.format-pills{ display: flex; gap: 8px; flex-wrap: wrap; margin-top: 4px; }
.pill{
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 6px 12px;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--text-muted);
}
.progress-track{
  height: 6px;
  border-radius: 999px;
  background: var(--surface-2);
  margin-top: 14px;
  overflow: hidden;
}
.progress-fill{
  height: 100%;
  width: 0%;
  background: var(--accent-grad);
  transition: width .35s ease;
}
.progress-label{
  display: flex;
  justify-content: space-between;
  font-size: 0.78rem;
  color: var(--text-dim);
  margin-top: 8px;
  font-family: var(--font-mono);
}

/* Bottom grid: console + result */
.bottom-grid{
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 16px;
  margin-top: 16px;
}
@media (max-width: 900px){
  .bottom-grid{ grid-template-columns: 1fr; }
}

.console{
  background: #0c0b12;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  height: 220px;
  overflow-y: auto;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  line-height: 1.7;
}
.console-line{ white-space: pre-wrap; word-break: break-word; }
.console-line .ts{ color: var(--text-dim); margin-right: 6px; }
.console-line.info{ color: #b9c4ff; }
.console-line.success{ color: var(--success); }
.console-line.warning{ color: var(--warning); }
.console-line.error{ color: var(--danger); }
.console-line.system{ color: var(--text-dim); }

.result-empty{
  color: var(--text-dim);
  font-size: 0.88rem;
  padding: 30px 4px;
  text-align: center;
}
.result-docx{
  font-size: 0.8rem;
  color: var(--text-muted);
  margin: 10px 0 4px;
  font-family: var(--font-mono);
}
.result-ready h4{
  font-size: 0.85rem;
  color: var(--text-dim);
  margin: 18px 0 8px;
  font-weight: 500;
}
.deviation-list{
  list-style: none;
  margin: 0; padding: 0;
  display: flex; flex-direction: column; gap: 10px;
  max-height: 150px;
  overflow-y: auto;
}
.deviation-list li{
  border-left: 2px solid var(--accent-1);
  padding-left: 10px;
  font-size: 0.82rem;
  color: var(--text-muted);
}
.deviation-list li b{ display: block; color: var(--text); font-weight: 500; font-size: 0.84rem; }
.deviation-empty{ color: var(--text-dim); font-size: 0.82rem; }

/* ==========================================================
   How it works
   ========================================================== */
.section-head{
  max-width: 640px;
  margin: 0 auto 46px;
  text-align: center;
}
.section-head h2{
  font-size: clamp(1.6rem, 3.4vw, 2.3rem);
  margin-top: 10px;
}

.how{ max-width: 1180px; margin: 0 auto; padding: 60px 24px 30px; }
.how-grid{
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
@media (max-width: 900px){ .how-grid{ grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px){ .how-grid{ grid-template-columns: 1fr; } }

.how-step{
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 24px 20px;
}
.how-num{
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent-2);
  display: block;
  margin-bottom: 14px;
}
.how-step h3{ font-size: 1.05rem; margin-bottom: 8px; }
.how-step p{ font-size: 0.88rem; color: var(--text-muted); }

.flow-diagram{
  margin: 44px auto 0;
  max-width: 800px;
  padding: 22px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}
.flow-box{ fill: var(--surface-2); stroke: var(--border-strong); stroke-width: 1; }
.flow-box-c{ fill: rgba(155,134,248,0.1); stroke: rgba(155,134,248,0.4); }
.flow-box-d{ fill: rgba(203,182,255,0.08); stroke: rgba(203,182,255,0.35); }
.flow-label{ fill: var(--text); font-size: 13px; font-family: var(--font-body); font-weight: 600; }
.flow-sub{ fill: var(--text-dim); font-size: 10px; font-family: var(--font-mono); }
.flow-path{ fill: none; stroke: var(--border-strong); stroke-width: 1.5; stroke-dasharray: 4 5; }
.flow-hair{ stroke: var(--border-strong); stroke-width: 1; }
.flow-dot{ fill: var(--accent-1); }

/* ==========================================================
   Capabilities
   ========================================================== */
.capabilities{ max-width: 1180px; margin: 0 auto; padding: 60px 24px; }
.cap-grid{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
@media (max-width: 900px){ .cap-grid{ grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px){ .cap-grid{ grid-template-columns: 1fr; } }

.cap-card{
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 24px 22px;
  transition: border-color .2s ease, transform .2s ease;
}
.cap-card:hover{ border-color: var(--border-strong); transform: translateY(-2px); }
.cap-icon{
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent-2);
  display: inline-block;
  margin-bottom: 14px;
}
.cap-card h3{ font-size: 1.02rem; margin-bottom: 8px; }
.cap-card p{ font-size: 0.87rem; color: var(--text-muted); }

/* ==========================================================
   FAQ
   ========================================================== */
.faq{ max-width: 800px; margin: 0 auto; padding: 60px 24px 100px; }
.faq-list{ display: flex; flex-direction: column; gap: 10px; }
.faq-item{
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 4px 20px;
}
.faq-item summary{
  cursor: pointer;
  padding: 16px 0;
  font-weight: 500;
  font-size: 0.95rem;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.faq-item summary::-webkit-details-marker{ display: none; }
.faq-item summary::after{
  content: "+";
  color: var(--text-dim);
  font-size: 1.2rem;
  margin-left: 12px;
}
.faq-item[open] summary::after{ content: "–"; }
.faq-item p{ padding: 0 0 18px; color: var(--text-muted); font-size: 0.88rem; }

/* ==========================================================
   Footer
   ========================================================== */
.footer{ border-top: 1px solid var(--border); padding: 40px 24px 50px; }
.footer-inner{
  max-width: 1180px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 20px;
  justify-content: space-between;
}
.footer-note{ color: var(--text-dim); font-size: 0.85rem; max-width: 360px; }
.footer-links{ display: flex; gap: 20px; font-size: 0.85rem; color: var(--text-muted); }
.footer-links a:hover{ color: var(--text); }