:root {
  --bg:#080b12; --bg-soft:#0d111a; --card:rgba(18,24,36,.86); --card-strong:#111827;
  --border:rgba(255,255,255,.09); --border-strong:rgba(255,255,255,.16);
  --text:#f5f7fb; --muted:#9aa5b5; --muted-2:#6f7b8d;
  --accent:#6d7cff; --accent-2:#8a68ff; --success:#37d89b; --warning:#f2b94b; --danger:#ff647c;
  --shadow:0 25px 80px rgba(0,0,0,.35); --radius:22px;
}

* { box-sizing:border-box; }
html { scroll-behavior:smooth; }

body {
  margin:0; min-height:100vh;
  font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  color:var(--text);
  background:
    radial-gradient(circle at 15% 0%, rgba(109,124,255,.13), transparent 35%),
    radial-gradient(circle at 85% 10%, rgba(138,104,255,.11), transparent 30%),
    var(--bg);
}

button, input, select { font:inherit; }
button { cursor:pointer; }
a { color:inherit; }
code { background:rgba(255,255,255,.07); padding:2px 6px; border-radius:6px; font-size:.92em; }
:focus-visible { outline:2px solid var(--accent); outline-offset:3px; }

.app-shell { width:min(1180px, calc(100% - 32px)); margin:0 auto; padding-bottom:60px; }

/* ---------- Cabecera y navegación ---------- */
.topbar {
  display:flex; align-items:center; gap:16px; min-height:76px; flex-wrap:wrap;
  border-bottom:1px solid var(--border);
}
.brand { display:flex; align-items:center; gap:12px; text-decoration:none; }
.brand-mark {
  width:40px; height:40px; display:grid; place-items:center; border-radius:12px;
  background:linear-gradient(135deg,var(--accent),var(--accent-2));
  color:#fff; font-size:21px; font-weight:900; box-shadow:0 10px 30px rgba(109,124,255,.3);
}
.brand-name { font-size:17px; font-weight:800; letter-spacing:-.02em; }
.brand-subtitle { color:var(--muted-2); font-size:11px; margin-top:1px; }

.main-nav { flex:1; }
.nav-list { display:flex; gap:4px; list-style:none; margin:0; padding:0; flex-wrap:wrap; }
.nav-list a {
  display:inline-block; padding:8px 12px; border-radius:10px;
  color:var(--muted); font-size:13px; font-weight:700; text-decoration:none;
}
.nav-list a:hover { background:rgba(255,255,255,.05); color:var(--text); }
.nav-list a[aria-current="page"] { color:var(--text); background:rgba(109,124,255,.14); }
.nav-toggle { display:none; }

.top-actions { display:flex; align-items:center; gap:10px; margin-left:auto; }

.status-badge {
  display:inline-flex; align-items:center; min-height:32px; padding:0 12px; border-radius:999px;
  border:1px solid rgba(55,216,155,.18); background:rgba(55,216,155,.08); color:#8cebc5;
  font-size:12px; font-weight:700;
}
.status-badge.loading { border-color:rgba(242,185,75,.2); background:rgba(242,185,75,.08); color:#ffd98c; }
.status-badge.error { border-color:rgba(255,100,124,.2); background:rgba(255,100,124,.08); color:#ff9dad; }

.icon-btn {
  width:36px; height:36px; border:1px solid var(--border); border-radius:11px;
  background:var(--card); color:var(--text);
}
.icon-btn.small { width:30px; height:30px; border-radius:9px; font-size:13px; line-height:1; }
.icon-btn.danger { color:#ff9dad; border-color:rgba(255,100,124,.25); }
.icon-btn:disabled { opacity:.35; cursor:not-allowed; }

/* ---------- Hero ---------- */
.hero { padding:70px 0 34px; }
.hero-copy { max-width:820px; }
.eyebrow, .section-kicker { color:#8e9cff; font-size:11px; font-weight:900; letter-spacing:.16em; }
.hero h1 { margin:13px 0 18px; font-size:clamp(40px,6vw,68px); line-height:1; letter-spacing:-.05em; }
.hero h1 span { display:block; color:var(--muted); }
.hero p { max-width:690px; margin:0; color:var(--muted); font-size:17px; line-height:1.7; }

.tool-hero { padding:48px 0 26px; max-width:760px; }
.tool-hero h1 { margin:12px 0 14px; font-size:clamp(30px,4.6vw,46px); line-height:1.08; letter-spacing:-.04em; }
.tool-hero p { margin:0; color:var(--muted); font-size:16px; line-height:1.7; }

.privacy-row { display:flex; align-items:center; gap:12px; margin-top:24px; flex-wrap:wrap; }
.privacy-pill {
  display:inline-flex; align-items:center; gap:7px; padding:8px 11px; border-radius:999px;
  background:rgba(55,216,155,.08); border:1px solid rgba(55,216,155,.16);
  color:#91e8c8; font-size:12px; font-weight:800;
}
.dot { width:7px; height:7px; border-radius:50%; background:var(--success); box-shadow:0 0 12px rgba(55,216,155,.8); }
.privacy-text { color:var(--muted-2); font-size:12px; }

/* ---------- Tarjetas de herramientas (home) ---------- */
.tools-section { display:grid; grid-template-columns:repeat(3,1fr); gap:14px; margin-top:26px; }
.tool-card {
  position:relative; display:block; padding:24px; border-radius:var(--radius); text-decoration:none;
  border:1px solid var(--border); background:var(--card); box-shadow:var(--shadow);
  transition:transform .18s ease, border-color .18s ease;
}
.tool-card:hover { transform:translateY(-3px); border-color:var(--border-strong); }
.tool-card h2 { margin:0 0 8px; font-size:20px; letter-spacing:-.03em; }
.tool-card p { margin:0 0 14px; color:var(--muted); font-size:13px; line-height:1.6; }
.tool-link { color:#abb4ff; font-size:13px; font-weight:800; }
.tool-card.featured { grid-column:span 3; background:linear-gradient(145deg,rgba(109,124,255,.14),rgba(138,104,255,.05)); border-color:rgba(109,124,255,.4); }
.tool-badge {
  position:absolute; top:18px; right:18px; padding:4px 8px; border-radius:7px;
  background:rgba(109,124,255,.18); color:#c3c9ff; font-size:9px; font-weight:900; text-transform:uppercase;
}

/* ---------- Zona de carga ---------- */
.drop-zone {
  position:relative; min-height:340px; display:flex; flex-direction:column;
  align-items:center; justify-content:center; text-align:center; padding:28px;
  border:1px dashed rgba(140,156,255,.36); border-radius:28px;
  background:linear-gradient(180deg,rgba(18,24,36,.75),rgba(13,17,26,.85));
  box-shadow:var(--shadow); transition:border-color .2s ease, transform .2s ease, background .2s ease;
}
.drop-zone.compact { min-height:250px; }
.drop-zone:hover, .drop-zone.dragging {
  border-color:rgba(140,156,255,.8);
  background:linear-gradient(180deg,rgba(25,32,49,.9),rgba(13,17,26,.95)); transform:translateY(-2px);
}
.drop-icon {
  width:66px; height:66px; display:grid; place-items:center; margin-bottom:18px; border-radius:20px;
  background:rgba(109,124,255,.11); border:1px solid rgba(109,124,255,.22);
  color:#aab3ff; font-size:13px; font-weight:900;
}
.drop-zone h2 { margin:0; font-size:24px; letter-spacing:-.025em; }
.drop-zone p { margin:9px 0 20px; color:var(--muted); font-size:14px; }
.drop-note { margin-top:14px; color:var(--muted-2); font-size:11px; }

/* ---------- Botones ---------- */
.primary-btn, .secondary-btn, .compress-btn { border:0; transition:transform .18s ease, opacity .18s ease; }
.primary-btn {
  min-height:44px; padding:0 19px; border-radius:12px;
  background:linear-gradient(135deg,var(--accent),var(--accent-2));
  color:#fff; font-size:13px; font-weight:800; box-shadow:0 12px 30px rgba(109,124,255,.22);
}
.primary-btn:hover, .compress-btn:hover { transform:translateY(-1px); }
.secondary-btn {
  min-height:42px; padding:0 15px; border-radius:11px; border:1px solid var(--border);
  background:rgba(255,255,255,.035); color:var(--text); font-size:13px; font-weight:700;
}
.secondary-btn:hover { background:rgba(255,255,255,.07); }
.primary-btn:disabled, .secondary-btn:disabled, .compress-btn:disabled { opacity:.5; cursor:not-allowed; transform:none; }
.large { min-height:48px; padding-left:21px; padding-right:21px; }
.compress-btn {
  width:100%; min-height:54px; border-radius:14px;
  background:linear-gradient(135deg,var(--accent),var(--accent-2));
  color:#fff; font-size:14px; font-weight:900; box-shadow:0 15px 40px rgba(109,124,255,.23);
}

/* ---------- Paneles ---------- */
.workspace { margin-top:24px; }
.panel, .file-card, .analysis-panel, .controls-panel, .progress-panel,
.result-panel, .error-panel, .info-card, .faq-section details, .log-details {
  border:1px solid var(--border); background:var(--card);
  backdrop-filter:blur(20px); box-shadow:var(--shadow);
}
.panel, .analysis-panel, .controls-panel, .progress-panel, .result-panel, .error-panel {
  margin-top:16px; padding:24px; border-radius:var(--radius);
}
.file-card { display:flex; align-items:center; gap:14px; padding:16px; border-radius:var(--radius); }
.file-card.plain { box-shadow:none; background:rgba(255,255,255,.025); }
.file-icon {
  width:50px; height:50px; display:grid; place-items:center; border-radius:14px;
  background:rgba(255,100,124,.08); border:1px solid rgba(255,100,124,.16);
  color:#ff8da0; font-size:10px; font-weight:900;
}
.file-main { flex:1; min-width:0; }
.file-name { overflow:hidden; white-space:nowrap; text-overflow:ellipsis; font-size:14px; font-weight:800; }
.file-meta { margin-top:4px; color:var(--muted-2); font-size:12px; }

.global-error { margin:0 0 16px; padding:18px 20px; border-radius:var(--radius); }
.section-heading, .progress-top { display:flex; align-items:flex-start; justify-content:space-between; gap:20px; flex-wrap:wrap; }
.section-heading h2, .progress-top h2, .info-card h2, .faq-section h2, .related h2 {
  margin:7px 0 0; font-size:22px; letter-spacing:-.035em;
}
.small-status { color:var(--muted); font-size:12px; padding-top:4px; }
.hint { color:var(--muted-2); font-size:12px; line-height:1.6; margin:10px 0 0; }

.stats-grid { display:grid; grid-template-columns:repeat(4,1fr); gap:10px; margin-top:22px; }
.stat-card, .result-card { padding:16px; border-radius:16px; border:1px solid var(--border); background:rgba(255,255,255,.025); }
.stat-card span, .result-card span { display:block; color:var(--muted-2); font-size:11px; }
.stat-card strong, .result-card strong { display:block; margin-top:8px; font-size:16px; letter-spacing:-.02em; }

.warning-box, .result-message {
  margin-top:14px; padding:14px 15px; border-radius:14px;
  border:1px solid rgba(242,185,75,.17); background:rgba(242,185,75,.06);
  color:#f9d889; font-size:12px; line-height:1.6;
}
.warning-box.blocking { border-color:rgba(255,100,124,.25); background:rgba(255,100,124,.07); color:#ffb3bf; }

.risk-row {
  display:flex; align-items:center; gap:11px; margin-top:12px; padding:13px 15px;
  border:1px solid var(--border); border-radius:14px; background:rgba(255,255,255,.025); cursor:pointer;
}
.risk-row input { position:absolute; opacity:0; pointer-events:none; }
.risk-row strong { display:block; font-size:12px; }
.risk-row small { display:block; margin-top:3px; color:var(--muted-2); font-size:10px; }

/* ---------- Modos de compresión ---------- */
.mode-grid { display:grid; grid-template-columns:repeat(5,1fr); gap:10px; margin-top:22px; }
.mode-card {
  position:relative; min-height:150px; padding:17px; text-align:left;
  border:1px solid var(--border); border-radius:17px; background:rgba(255,255,255,.025); color:var(--text);
  transition:border-color .18s ease, background .18s ease, transform .18s ease;
}
.mode-card:hover { transform:translateY(-2px); border-color:var(--border-strong); }
.mode-card.active { border-color:rgba(109,124,255,.6); background:linear-gradient(145deg,rgba(109,124,255,.13),rgba(138,104,255,.05)); }
.mode-title { display:block; font-size:14px; font-weight:900; }
.mode-description { display:block; margin-top:9px; color:var(--muted); font-size:11px; line-height:1.5; }
.mode-tag {
  display:inline-block; margin-top:12px; padding:4px 7px; border-radius:7px;
  background:rgba(109,124,255,.12); color:#abb4ff; font-size:9px; font-weight:900; text-transform:uppercase;
}

/* ---------- Campos ---------- */
.advanced-row, .options-grid { display:grid; grid-template-columns:repeat(auto-fit,minmax(220px,1fr)); gap:12px; margin-top:15px; }
.field, .checkbox-field { padding:15px; border:1px solid var(--border); border-radius:15px; background:rgba(255,255,255,.025); }
.field > span { display:block; color:var(--muted); font-size:11px; font-weight:700; margin-bottom:8px; }
.text-input {
  width:100%; padding:10px 11px; border:1px solid var(--border); border-radius:9px; outline:none;
  background:rgba(0,0,0,.18); color:var(--text);
}
.input-wrap { display:flex; align-items:center; gap:8px; }
.input-wrap input { width:110px; padding:8px 9px; border:1px solid var(--border); border-radius:8px; background:rgba(0,0,0,.18); color:var(--text); outline:none; }
.input-wrap span { color:var(--muted); font-size:11px; }
.checkbox-field { display:flex; align-items:center; gap:11px; cursor:pointer; }
.checkbox-field input { position:absolute; opacity:0; pointer-events:none; }
.checkbox-ui { width:20px; height:20px; flex:0 0 20px; border-radius:6px; border:1px solid var(--border-strong); background:rgba(0,0,0,.12); }
.checkbox-field input:checked + .checkbox-ui, .risk-row input:checked + .checkbox-ui {
  border-color:var(--accent); background:var(--accent); box-shadow:inset 0 0 0 4px rgba(255,255,255,.85);
}
.checkbox-field strong { display:block; font-size:12px; }
.checkbox-field small { display:block; margin-top:3px; color:var(--muted-2); font-size:10px; }

.radio-row { display:grid; grid-template-columns:repeat(auto-fit,minmax(240px,1fr)); gap:12px; margin-top:18px; }
.radio-option {
  display:flex; align-items:flex-start; gap:10px; padding:14px 15px; cursor:pointer;
  border:1px solid var(--border); border-radius:15px; background:rgba(255,255,255,.025);
}
.radio-option strong { display:block; font-size:13px; }
.radio-option small { display:block; margin-top:3px; color:var(--muted-2); font-size:11px; }

.panel-actions { display:flex; gap:10px; margin-top:18px; flex-wrap:wrap; }
.panel-actions .compress-btn { flex:1 1 260px; }
.toolbar { display:flex; gap:8px; margin-top:16px; flex-wrap:wrap; }

/* ---------- Lista de archivos ---------- */
.queue-list { list-style:none; margin:16px 0 0; padding:0; display:flex; flex-direction:column; gap:8px; }
.queue-item {
  display:flex; align-items:center; gap:12px; padding:12px 14px; border-radius:14px;
  border:1px solid var(--border); background:rgba(255,255,255,.025); cursor:grab;
}
.queue-item.dragging { opacity:.5; }
.queue-item.drop-target { border-color:var(--accent); background:rgba(109,124,255,.12); }
.queue-order {
  width:26px; height:26px; flex:0 0 26px; display:grid; place-items:center; border-radius:8px;
  background:rgba(109,124,255,.14); color:#abb4ff; font-size:12px; font-weight:900;
}
.queue-main { flex:1; min-width:0; }
.queue-name { display:block; font-size:13px; font-weight:700; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
.queue-meta { display:block; margin-top:3px; color:var(--muted-2); font-size:11px; }
.queue-actions { display:flex; gap:6px; }

/* ---------- Miniaturas de páginas ---------- */
.page-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(150px,1fr)); gap:12px; margin-top:18px; }
.page-card {
  padding:10px; border-radius:14px; border:1px solid var(--border); background:rgba(255,255,255,.025);
  text-align:center; cursor:pointer; transition:border-color .15s ease, transform .15s ease;
}
.page-card:hover { border-color:var(--border-strong); transform:translateY(-2px); }
.page-card.selected { border-color:rgba(109,124,255,.7); background:rgba(109,124,255,.12); }
.page-card.dragging { opacity:.5; }
.page-card.drop-target { border-color:var(--accent); }
.page-frame {
  display:grid; place-items:center; height:160px; overflow:hidden; border-radius:8px;
  background:#fff; transition:transform .2s ease;
}
.page-frame canvas { max-width:100%; max-height:100%; display:block; }
.page-label { margin-top:8px; color:var(--muted-2); font-size:11px; }
.page-tools { display:flex; justify-content:center; gap:4px; margin-top:8px; flex-wrap:wrap; }

/* ---------- Progreso, resultado, error ---------- */
.progress-top strong { color:#abb4ff; font-size:24px; }
.progress-track { height:9px; margin-top:22px; overflow:hidden; border-radius:999px; background:rgba(255,255,255,.07); }
.progress-bar { width:0%; height:100%; border-radius:inherit; background:linear-gradient(90deg,var(--accent),var(--accent-2)); transition:width .25s ease; }
.progress-text { margin:12px 0 0; color:var(--muted); font-size:12px; }
#cancelBtn { margin-top:16px; }

.result-success { display:flex; align-items:center; gap:12px; }
.success-icon {
  width:48px; height:48px; display:grid; place-items:center; border-radius:15px;
  background:rgba(55,216,155,.09); border:1px solid rgba(55,216,155,.18);
  color:var(--success); font-size:20px; font-weight:900;
}
.success-icon.neutral { background:rgba(242,185,75,.09); border-color:rgba(242,185,75,.2); color:var(--warning); }
.result-grid { display:grid; grid-template-columns:repeat(4,1fr); gap:10px; margin-top:22px; }
.result-message { border-color:rgba(109,124,255,.16); background:rgba(109,124,255,.05); color:var(--muted); }
.result-actions { display:flex; gap:10px; margin-top:18px; flex-wrap:wrap; }

.result-list { list-style:none; margin:16px 0 0; padding:0; display:flex; flex-direction:column; gap:8px; }
.result-item {
  display:flex; align-items:center; justify-content:space-between; gap:12px; padding:12px 14px;
  border-radius:14px; border:1px solid var(--border); background:rgba(255,255,255,.025);
}
.result-info { min-width:0; }
.result-name { display:block; font-size:13px; font-weight:700; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
.result-meta { display:block; margin-top:3px; color:var(--muted-2); font-size:11px; }

.log-details { margin-top:14px; padding:12px 14px; border-radius:14px; }
.log-details summary { cursor:pointer; font-size:12px; font-weight:800; color:var(--muted); }
.log-details pre { margin:10px 0 0; max-height:220px; overflow:auto; color:var(--muted-2); font-size:11px; line-height:1.5; white-space:pre-wrap; word-break:break-word; }

.error-panel { border-color:rgba(255,100,124,.2); background:rgba(255,100,124,.05); }
.error-panel strong { color:#ff9dad; }
.error-panel p { color:var(--muted); font-size:12px; line-height:1.6; }

/* ---------- Contenido informativo ---------- */
.related { margin-top:40px; }
.related-links { display:flex; flex-wrap:wrap; gap:10px; margin-top:14px; }
.related-links a {
  padding:10px 14px; border-radius:11px; border:1px solid var(--border);
  background:rgba(255,255,255,.025); color:var(--muted); font-size:13px; font-weight:700; text-decoration:none;
}
.related-links a:hover { color:var(--text); border-color:var(--border-strong); }

.info-section { display:grid; grid-template-columns:1fr 1fr; gap:16px; margin-top:56px; }
.info-card { padding:25px; border-radius:var(--radius); }
.info-card p { margin:12px 0 0; color:var(--muted); font-size:13px; line-height:1.7; }
.faq-section { margin-top:56px; }
.faq-section > h2 { margin-bottom:18px; }
.faq-section details { margin-top:9px; padding:17px 18px; border-radius:15px; }
summary { cursor:pointer; font-size:13px; font-weight:800; }
.faq-section details p { margin:10px 0 0; color:var(--muted); font-size:12px; line-height:1.65; }

footer {
  display:flex; justify-content:space-between; gap:20px; margin-top:60px; padding-top:22px;
  border-top:1px solid var(--border); color:var(--muted-2); font-size:11px; flex-wrap:wrap;
}
.footer-links { display:flex; gap:14px; flex-wrap:wrap; }
.footer-links a { color:var(--muted-2); text-decoration:none; }
.footer-links a:hover { color:var(--text); }

/* ---------- Huecos de publicidad ----------
   Ocultos hasta que exista código real de Google.
   Activarlos añadiendo la clase "ads-on" al <body>. */
.ad-slot { display:none; }
body.ads-on .ad-slot {
  display:block; margin:26px 0; min-height:90px; border-radius:16px;
  border:1px solid var(--border); background:rgba(255,255,255,.02);
}

.hidden { display:none !important; }

/* ---------- Tema claro ---------- */
body.light {
  --bg:#f3f5fa; --bg-soft:#fff; --card:rgba(255,255,255,.9); --card-strong:#fff;
  --border:rgba(20,27,40,.09); --border-strong:rgba(20,27,40,.17);
  --text:#141925; --muted:#596477; --muted-2:#7a8597; --shadow:0 25px 70px rgba(35,45,65,.12);
}
body.light .drop-zone { background:linear-gradient(180deg,rgba(255,255,255,.92),rgba(247,249,253,.95)); }
body.light code { background:rgba(20,27,40,.06); }

/* ---------- Responsive ---------- */
@media (max-width:980px) {
  .tools-section { grid-template-columns:repeat(2,1fr); }
  .tool-card.featured { grid-column:span 2; }
  .mode-grid { grid-template-columns:repeat(2,1fr); }
  .stats-grid, .result-grid { grid-template-columns:repeat(2,1fr); }
  .info-section { grid-template-columns:1fr; }
}

@media (max-width:760px) {
  .nav-toggle { display:block; order:3; }
  .main-nav { order:4; flex-basis:100%; }
  .nav-list { display:none; flex-direction:column; gap:2px; padding-bottom:12px; }
  .nav-list.open { display:flex; }
  .nav-list a { padding:12px; font-size:14px; }
  .top-actions { order:2; }
}

@media (max-width:650px) {
  .app-shell { width:min(100% - 22px,1180px); }
  .status-badge { display:none; }
  .hero { padding-top:40px; }
  .tools-section { grid-template-columns:1fr; }
  .tool-card.featured { grid-column:span 1; }
  .drop-zone { min-height:260px; padding:22px; }
  .stats-grid, .result-grid, .advanced-row, .options-grid, .mode-grid { grid-template-columns:1fr; }
  .result-actions, .panel-actions { flex-direction:column; }
  .result-item { flex-direction:column; align-items:stretch; }
  .result-item .primary-btn, .result-item .secondary-btn { width:100%; }
  .page-grid { grid-template-columns:repeat(auto-fill,minmax(120px,1fr)); }
  .page-frame { height:130px; }
  footer { flex-direction:column; }
}