/* =============================================================
   Comprimir Imagen Fácil — styles.css
   Mismo lenguaje visual que el resto de herramientas de VivaFacilito
   (header, footer, tipografía, botones, cards, ad-slots, dark mode).
   ============================================================= */

/* =============================================================
   1. Tokens
   ============================================================= */
:root{
  --accent:#4f46e5;
  --accent-dark:#3730a3;
  --accent-soft:#eef0ff;
  --success:#14804a;
  --success-soft:#e4f6ec;
  --warning:#92400e;
  --warning-soft:#fef3c7;
  --danger:#b91c1c;
  --danger-soft:#fde8e8;
  --ink:#1b1f2a;
  --muted:#5a6072;
  --border:#e2e5ee;
  --border-strong:#c7cbdb;
  --bg:#f6f7fb;
  --card:#ffffff;
  --surface-muted:#eef0f6;
  --radius:14px;
  --radius-sm:9px;
  --shadow-sm:0 1px 3px rgba(16,24,40,.05);
  --font-ui:'Inter',system-ui,sans-serif;
  --font-display:'Manrope',system-ui,sans-serif;
  color-scheme:light;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --accent:#8b85f6; --accent-dark:#b3aefb; --accent-soft:#232244;
    --success:#4fd692; --success-soft:#123324;
    --warning:#fbbf24; --warning-soft:#3a2c0c;
    --danger:#f87171; --danger-soft:#3a1414;
    --ink:#e7e9ee; --muted:#8b95a7; --border:#2a3346; --border-strong:#3a4358;
    --bg:#0b0f17; --card:#161d2c; --surface-muted:#1b2233;
    color-scheme:dark;
  }
}
:root[data-theme="dark"]{
  --accent:#8b85f6; --accent-dark:#b3aefb; --accent-soft:#232244;
  --success:#4fd692; --success-soft:#123324;
  --warning:#fbbf24; --warning-soft:#3a2c0c;
  --danger:#f87171; --danger-soft:#3a1414;
  --ink:#e7e9ee; --muted:#8b95a7; --border:#2a3346; --border-strong:#3a4358;
  --bg:#0b0f17; --card:#161d2c; --surface-muted:#1b2233;
  color-scheme:dark;
}

/* =============================================================
   2. Reset & base
   ============================================================= */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
@media (prefers-reduced-motion: reduce){ html{scroll-behavior:auto} }
html,body{margin:0;padding:0;overflow-x:clip}
body{
  font-family:var(--font-ui);
  background:var(--bg);
  color:var(--ink);
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
  transition:background-color .2s ease,color .2s ease;
}
img,svg,video{display:block;max-width:100%}
img{height:auto}
button{font:inherit;color:inherit;cursor:pointer;border:0;background:none}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4{line-height:1.15;margin:0 0 .5rem;font-family:var(--font-display);letter-spacing:-.01em}
p{margin:0 0 .8rem}
ul{margin:0;padding:0}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}
[hidden]{display:none!important}

/* =============================================================
   3. Utilities
   ============================================================= */
.container{max-width:1220px;margin:0 auto;padding:0 20px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.skip-link{position:fixed;top:-100px;left:1rem;padding:.6rem 1rem;background:var(--ink);color:var(--bg);z-index:9999;border-radius:8px;font-weight:600}
.skip-link:focus{top:1rem}
.small{font-size:.85rem;color:var(--muted)}
.text-muted{color:var(--muted)}
.eyebrow{font-size:.78rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--accent-dark);margin:0 0 .4rem}

/* =============================================================
   4. Header
   ============================================================= */
.site-header{
  padding:14px 0;background:color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--border);position:sticky;top:0;z-index:50;
}
.site-header .container{display:flex;align-items:center;justify-content:space-between;gap:1rem;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:8px;font-weight:800;font-size:1.1rem;color:var(--ink)}
.brand:hover{text-decoration:none}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:30px;height:30px;border-radius:9px;background:var(--accent);color:#fff;
  font-size:.8rem;font-weight:800;flex:none;
}
.header-nav{display:flex;gap:1.3rem;align-items:center;flex-wrap:wrap}
.header-nav a{font-size:.88rem;font-weight:600;color:var(--muted)}
.header-nav a:hover{color:var(--accent);text-decoration:none}
.header-actions{display:flex;align-items:center;gap:.9rem}
.back-link{font-size:.85rem;font-weight:600;color:var(--muted);display:inline-flex;align-items:center;gap:.3rem;white-space:nowrap}
.back-link:hover{color:var(--accent);text-decoration:none}
.theme-toggle{display:inline-flex;align-items:center;border:1px solid var(--border);border-radius:999px;padding:3px;gap:2px;background:var(--card)}
.theme-toggle button{width:32px;height:32px;border-radius:50%;display:grid;place-items:center;color:var(--muted)}
.theme-toggle button.is-active{background:var(--accent);color:#fff}
.theme-toggle svg{width:16px;height:16px}
@media (max-width:640px){
  .header-nav{display:none}
  .back-link .back-label{display:none}
}

/* =============================================================
   5. Ad slots
   ============================================================= */
.ad-slot{
  border:1px dashed var(--border-strong);background:var(--surface-muted);color:var(--muted);
  display:flex;align-items:center;justify-content:center;font-weight:600;font-size:.76rem;
  letter-spacing:.04em;text-transform:uppercase;border-radius:10px;
}
.ad-slot span{opacity:.75}
.ad-slot--top{height:90px;margin:24px auto}
.ad-slot--incontent{height:110px;margin:8px auto 0}
.ad-slot--sidebar{height:250px;margin-bottom:1rem}
.ad-slot--rail{min-height:420px;height:100%}

/* Margen lateral mínimo garantizado en TODO el contenido de <main>, esté el
   .container a la profundidad que esté (dentro de <section class="section">
   incluido) — así el texto nunca queda debajo de los raíles de anuncios fijos.
   Entre 120 y 160px en escritorio típico (1240-1440px) y hasta 200px en
   pantallas más anchas. Mismo ajuste que en el resto de herramientas de
   VivaFacilito. */
#main .container{
  padding-inline:clamp(1.15rem,calc(20vw - 128px),200px);
}
.rail-ad{display:none}
@media (min-width:1180px){
  .rail-ad{
    display:block;position:fixed;top:96px;z-index:2;
    width:clamp(72px,calc(20vw - 128px - 24px),176px);
    max-height:calc(100vh - 116px);
  }
  .rail-ad--left{left:8px}
  .rail-ad--right{right:8px}
  .rail-ad .ad-slot--rail{min-height:420px;height:100%;position:sticky;top:96px}
}

/* =============================================================
   6. Hero
   ============================================================= */
.hero{padding:34px 0 8px;text-align:center}
.hero h1{font-size:clamp(1.55rem,2.6vw + 1rem,2.3rem)}
.hero .lead{color:var(--muted);max-width:680px;margin:0 auto;font-size:1.03rem}
.trust-row{display:flex;gap:10px;flex-wrap:wrap;justify-content:center;margin-top:14px}
.chip{
  background:var(--accent-soft);color:var(--accent-dark);border-radius:100px;
  padding:6px 13px;font-size:.78rem;font-weight:700;border:1px solid transparent;
}

/* =============================================================
   7. Card / buttons
   ============================================================= */
.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-sm)}
.card-pad{padding:22px}
.btn{
  display:inline-flex;align-items:center;gap:7px;justify-content:center;
  border-radius:var(--radius-sm);padding:10px 18px;font-weight:700;font-size:.9rem;
  transition:transform .05s ease,background-color .15s ease,border-color .15s ease,color .15s ease;
}
.btn:active{transform:scale(.98)}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-dark);text-decoration:none}
.btn-primary:disabled{opacity:.5;cursor:not-allowed}
.btn-secondary{background:var(--card);border:1px solid var(--border);color:var(--ink)}
.btn-secondary:hover{border-color:var(--accent);color:var(--accent-dark);text-decoration:none}
.btn-ghost{background:transparent;color:var(--muted);padding:7px 10px;font-size:.83rem}
.btn-ghost:hover{color:var(--accent);text-decoration:none}
.btn-danger-ghost{background:transparent;color:var(--danger);padding:7px 10px;font-size:.83rem}
.btn-danger-ghost:hover{text-decoration:underline}
.btn-block{width:100%}
.btn-lg{padding:13px 22px;font-size:1rem}
.btn-sm{padding:6px 11px;font-size:.78rem;border-radius:8px}

/* =============================================================
   8. Tool card
   ============================================================= */
.tool-card{padding:0;overflow:hidden;margin:20px auto 0}
.tool-card-inner{padding:22px}

/* --- Dropzone --- */
.dropzone{
  border:2px dashed var(--border-strong);border-radius:var(--radius);
  padding:38px 20px;text-align:center;cursor:pointer;transition:border-color .15s ease,background-color .15s ease;
  background:var(--surface-muted);
}
.dropzone:hover,.dropzone:focus-visible{border-color:var(--accent)}
.dropzone.is-dragover{border-color:var(--accent);background:var(--accent-soft)}
.dropzone svg{margin:0 auto 10px;color:var(--accent)}
.dz-title{font-weight:700;font-size:1.05rem;margin-bottom:2px}
.dz-hint{color:var(--muted);font-size:.85rem;margin:4px 0}
.dropzone input[type=file]{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}

/* --- File summary --- */
.file-summary{
  display:flex;align-items:center;gap:14px;padding:14px 16px;border:1px solid var(--border);
  border-radius:var(--radius-sm);background:var(--card);flex-wrap:wrap;
}
.file-summary .thumb{
  width:56px;height:56px;border-radius:9px;object-fit:cover;background:var(--surface-muted);flex:none;border:1px solid var(--border);
}
.file-summary .meta{flex:1;min-width:180px}
.file-summary .meta strong{display:block;font-size:.95rem;word-break:break-word}
.file-meta-tags{display:flex;flex-wrap:wrap;gap:6px 12px;margin-top:3px;font-size:.8rem;color:var(--muted)}
.file-meta-tags b{color:var(--ink);font-weight:600}

/* --- Notices (transparency / gif / format warnings) --- */
.notice{
  display:flex;gap:10px;align-items:flex-start;border-radius:var(--radius-sm);
  padding:11px 14px;font-size:.85rem;margin-top:12px;
}
.notice-warning{background:var(--warning-soft);color:var(--warning)}
.notice-danger{background:var(--danger-soft);color:var(--danger)}
.notice-info{background:var(--accent-soft);color:var(--accent-dark)}
.notice svg{flex:none;margin-top:1px}

/* --- Target size block --- */
.target-block{margin-top:18px}
.target-block > label,.target-block .target-label{
  display:block;font-weight:700;font-size:1rem;margin-bottom:10px;
}
.size-input-row{display:flex;gap:8px;align-items:stretch;flex-wrap:wrap}
.size-input-row input[type=number]{
  flex:1 1 140px;min-width:110px;padding:11px 13px;border:1px solid var(--border);border-radius:var(--radius-sm);
  font-size:1.1rem;font-weight:700;background:var(--card);color:var(--ink);font-family:inherit;
}
.size-input-row select{
  padding:11px 13px;border:1px solid var(--border);border-radius:var(--radius-sm);
  font-size:.95rem;font-weight:600;background:var(--card);color:var(--ink);font-family:inherit;
}
.size-chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.size-chip{
  border:1px solid var(--border);background:var(--card);color:var(--ink);border-radius:100px;
  padding:7px 14px;font-size:.85rem;font-weight:700;
}
.size-chip:hover{border-color:var(--accent);color:var(--accent-dark)}
.size-chip.is-active{background:var(--accent);border-color:var(--accent);color:#fff}

.mode-toggle{display:inline-flex;border:1px solid var(--border);border-radius:100px;padding:3px;margin-top:14px;background:var(--card)}
.mode-toggle button{padding:7px 16px;border-radius:100px;font-size:.83rem;font-weight:700;color:var(--muted)}
.mode-toggle button.is-active{background:var(--accent);color:#fff}
.mode-hint{font-size:.8rem;color:var(--muted);margin-top:6px}

/* --- Advanced options --- */
details.advanced{margin-top:18px;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--surface-muted)}
details.advanced > summary{
  list-style:none;cursor:pointer;padding:12px 14px;font-weight:700;font-size:.88rem;
  display:flex;align-items:center;gap:8px;color:var(--ink);
}
details.advanced > summary::-webkit-details-marker{display:none}
details.advanced > summary .chev{transition:transform .15s ease;margin-left:auto;color:var(--muted)}
details.advanced[open] > summary .chev{transform:rotate(180deg)}
.advanced-body{padding:4px 14px 16px;display:grid;gap:16px;grid-template-columns:1fr 1fr}
@media (max-width:640px){ .advanced-body{grid-template-columns:1fr} }
.option-group label.opt-title{display:block;font-weight:700;font-size:.85rem;margin-bottom:8px}
.seg-control{display:flex;flex-wrap:wrap;gap:6px}
.seg-control button{
  padding:7px 12px;border:1px solid var(--border);border-radius:8px;font-size:.82rem;font-weight:600;
  background:var(--card);color:var(--ink);
}
.seg-control button.is-active{background:var(--accent);border-color:var(--accent);color:#fff}
.seg-control button:disabled{opacity:.4;cursor:not-allowed}
.opt-note{font-size:.76rem;color:var(--muted);margin-top:6px}

/* --- Actions row --- */
.tool-actions{margin-top:20px;display:flex;gap:10px;flex-wrap:wrap;align-items:center}

/* --- Progress panel --- */
.progress-panel{margin-top:18px;text-align:center}
.progress-track{height:8px;border-radius:99px;background:var(--surface-muted);overflow:hidden;margin-bottom:10px}
.progress-fill{height:100%;background:var(--accent);width:0%;transition:width .2s ease}
.progress-label{font-size:.88rem;color:var(--muted);display:flex;align-items:center;justify-content:center;gap:8px}
.spinner{
  width:15px;height:15px;border-radius:50%;border:2px solid var(--border-strong);border-top-color:var(--accent);
  animation:spin .7s linear infinite;flex:none;
}
@keyframes spin{to{transform:rotate(360deg)}}
@media (prefers-reduced-motion: reduce){ .spinner{animation-duration:1.4s} }

/* --- Result panel --- */
.result-panel{margin-top:20px}
.result-headline{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.result-headline .ico{font-size:1.4rem}
.result-headline h2{margin:0;font-size:1.2rem}
.result-flow{font-size:.95rem;color:var(--muted);margin-bottom:16px}
.result-flow b{color:var(--ink);font-weight:800}
.result-flow .arrow{margin:0 6px;color:var(--accent)}

.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:10px;margin-bottom:18px}
.stat-tile{background:var(--surface-muted);border-radius:10px;padding:12px 10px;text-align:center}
.stat-tile strong{display:block;font-size:1.05rem;font-family:var(--font-display)}
.stat-tile span{font-size:.74rem;color:var(--muted);text-transform:uppercase;letter-spacing:.03em}
.stat-tile.is-accent{background:var(--accent-soft)}
.stat-tile.is-accent strong{color:var(--accent-dark)}
.stat-tile.is-success strong{color:var(--success)}

/* --- Comparison --- */
.compare-wrap{margin:18px 0}
.compare-slider{
  position:relative;border-radius:var(--radius-sm);overflow:hidden;border:1px solid var(--border);
  aspect-ratio:4/3;background:var(--surface-muted);max-height:520px;touch-action:pan-y;
}
.compare-slider img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;background:repeating-conic-gradient(#00000008 0% 25%, transparent 0% 50%) 50% / 16px 16px, var(--card)}
.compare-slider .after-clip{position:absolute;inset:0;overflow:hidden;width:50%}
.compare-slider .after-clip img{width:var(--clip-w,100vw);max-width:none}
.compare-label{
  position:absolute;top:10px;padding:4px 10px;border-radius:100px;background:rgba(15,23,42,.72);
  color:#fff;font-size:.72rem;font-weight:700;letter-spacing:.03em;text-transform:uppercase;z-index:3;
}
.compare-label.label-before{left:10px}
.compare-label.label-after{right:10px}
.compare-handle{
  position:absolute;top:0;bottom:0;left:50%;width:0;z-index:4;
  transform:translateX(-50%);cursor:ew-resize;
}
.compare-handle::before{content:"";position:absolute;top:0;bottom:0;left:0;width:2px;background:#fff;box-shadow:0 0 0 1px rgba(0,0,0,.25)}
.compare-handle-btn{
  position:absolute;top:50%;left:0;transform:translate(-50%,-50%);
  width:38px;height:38px;border-radius:50%;background:#fff;color:var(--ink);
  display:flex;align-items:center;justify-content:center;box-shadow:0 2px 8px rgba(0,0,0,.25);
  font-size:.8rem;font-weight:800;
}
.compare-caption{text-align:center;margin-top:10px;font-size:.9rem;color:var(--muted)}
.compare-caption b{color:var(--ink)}
.compare-caption .reduction{color:var(--success);font-weight:800}

.result-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:6px}

/* --- Error panel --- */
.error-panel{margin-top:18px;text-align:center;padding:26px 16px}
.error-icon{font-size:1.8rem;margin-bottom:6px}
.error-title{font-weight:800;margin-bottom:4px}

/* --- Privacy badge --- */
.privacy-badge{
  display:flex;gap:10px;align-items:flex-start;background:var(--success-soft);
  border-radius:10px;padding:12px 14px;font-size:.85rem;color:var(--success);max-width:1220px;margin:14px auto 0;
}
.privacy-badge svg{flex:none;margin-top:1px}

/* =============================================================
   9. Content sections
   ============================================================= */
.section{padding:34px 0}
.section-head{text-align:center;max-width:640px;margin:0 auto 26px}
.section-head h2{font-size:1.45rem}
.section-head p{color:var(--muted);margin:0}

.steps-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
@media (max-width:800px){ .steps-grid{grid-template-columns:1fr} }
.step-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:22px;text-align:center}
.step-num{
  width:36px;height:36px;border-radius:50%;background:var(--accent);color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:800;margin:0 auto 12px;
}
.step-card h3{font-size:1.02rem}
.step-card p{color:var(--muted);font-size:.88rem;margin:0}

.usecase-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
@media (max-width:900px){ .usecase-grid{grid-template-columns:repeat(2,1fr)} }
@media (max-width:600px){ .usecase-grid{grid-template-columns:1fr} }
.usecase-card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:16px}
.usecase-card .icon{font-size:1.3rem;margin-bottom:6px}
.usecase-card h3{font-size:.95rem;margin-bottom:3px}
.usecase-card p{color:var(--muted);font-size:.85rem;margin:0}

.prose h2{font-size:1.3rem}
.prose p{color:var(--ink);max-width:74ch}

.content-cols{display:grid;grid-template-columns:1fr 300px;gap:32px}
@media (max-width:960px){ .content-cols{grid-template-columns:1fr} }
.content-side{display:block}
@media (max-width:960px){ .content-side{display:none} }

.faq-item{background:var(--card);border:1px solid var(--border);border-radius:10px;padding:14px 16px;margin-bottom:10px}
.faq-item summary{font-weight:700;cursor:pointer;font-size:.95rem;list-style:none}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::before{content:"+ ";color:var(--accent);font-weight:800}
.faq-item[open] summary::before{content:"– "}
.faq-item p{color:var(--muted);margin:10px 0 0;font-size:.9rem}

.closing-cta{text-align:center;padding:clamp(2rem,5vw,3rem)}

/* =============================================================
   10. Footer
   ============================================================= */
.site-footer{border-top:1px solid var(--border);padding:30px 0;margin-top:10px}
.footer-grid{display:flex;flex-direction:column;gap:16px}
.footer-links{display:flex;flex-wrap:wrap;gap:18px;font-size:.85rem;color:var(--muted)}
.footer-links a{color:var(--muted)}
.footer-links a:hover{color:var(--accent);text-decoration:none}
.footer-note{color:var(--muted);font-size:.78rem;opacity:.9;margin:0}

/* =============================================================
   11. Toast
   ============================================================= */
.toast{
  position:fixed;bottom:16px;left:50%;transform:translateX(-50%);background:var(--ink);color:var(--bg);
  padding:10px 16px;border-radius:9px;font-size:.85rem;font-weight:600;z-index:80;
  box-shadow:0 6px 20px rgba(0,0,0,.25);max-width:90vw;text-align:center;
}

/* =============================================================
   12. Responsive tweaks
   ============================================================= */
@media (max-width:540px){
  .card-pad{padding:16px}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .size-input-row{flex-direction:row}
  .result-actions .btn{flex:1 1 auto}
}