/* =========================================================
   TornoCalc — styles.css
   Todo el color de marca vive en las variables de :root.
   El panel "Personalizar" (main.js) sobreescribe --accent,
   --accent-dark y el texto/emoji/logo del header en caliente.
   ========================================================= */

:root{
  --bg:#0b0f14;
  --bg-alt:#11161d;
  --card:#161c25;
  --card-hover:#1b222d;
  --border:#242c38;
  --text:#eef2f6;
  --text-dim:#8fa0b3;
  --accent:#005dcc;
  --accent-dark:#00408f;
  --accent-soft:rgba(0,93,204,.14);
  --danger:#e35b5b;
  --ok:#3ecf8e;
  --radius:12px;
  --radius-sm:8px;
  --ease-out:cubic-bezier(.16,1,.3,1);
  --sans:'Inter',system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;
  --header-h:64px;
}

*,*::before,*::after{box-sizing:border-box;margin:0}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  background:var(--bg);
  color:var(--text);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:clip;
}
img,svg{display:block;max-width:100%}
button{font:inherit;color:inherit;cursor:pointer;border:0;background:none}
a{color:inherit;text-decoration:none}
p{text-wrap:pretty}
h1,h2,h3,h4{text-wrap:balance;line-height:1.15;letter-spacing:-.01em}
ul{list-style:none}
::selection{background:var(--accent);color:#fff}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}

.skip-link{
  position:fixed;top:-100px;left:1rem;padding:.6rem 1rem;background:var(--accent);
  color:#fff;z-index:9999;border-radius:8px;font-weight:600;transition:top .2s var(--ease-out);
}
.skip-link:focus{top:1rem}

.container{max-width:1180px;margin:0 auto;padding:0 20px}

/* ---------- Header ---------- */
header.site{
  position:sticky;top:0;z-index:50;
  height:var(--header-h);
  background:rgba(11,15,20,.88);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--border);
}
header.site .container{
  height:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.05rem;color:var(--text)}
.brand .logo-img{width:34px;height:34px;border-radius:9px;object-fit:cover}
.brand .logo-emoji{
  width:34px;height:34px;border-radius:9px;background:var(--accent-soft);
  display:flex;align-items:center;justify-content:center;font-size:1.15rem;flex-shrink:0;
}
.brand .name-tag{display:flex;flex-direction:column;line-height:1.1}
.brand .name-tag small{font-size:.62rem;letter-spacing:1.5px;color:var(--accent);font-weight:700;text-transform:uppercase}

nav.main{display:flex;align-items:center;gap:6px}
.icon-btn{
  width:38px;height:38px;border-radius:9px;display:flex;align-items:center;justify-content:center;
  background:var(--card);border:1px solid var(--border);font-size:1.05rem;transition:background .15s var(--ease-out);
}
.icon-btn:hover{background:var(--card-hover)}
.btn{
  display:inline-flex;align-items:center;gap:6px;border-radius:9px;padding:9px 16px;font-weight:700;font-size:.85rem;
  transition:filter .15s var(--ease-out), transform .1s var(--ease-out);
}
.btn:active{transform:scale(.97)}
.btn.primary{background:var(--accent);color:#fff}
.btn.primary:hover{filter:brightness(1.12)}
.btn.ghost{background:var(--card);color:var(--text);border:1px solid var(--border)}
.btn.ghost:hover{background:var(--card-hover)}

/* ---------- Hero / intro ---------- */
.hero{padding:34px 0 8px;text-align:center}
.hero h1{font-size:clamp(1.6rem,4vw,2.3rem)}
.hero p{color:var(--text-dim);max-width:620px;margin:10px auto 0;font-size:1rem}
.privacy-badge{
  display:inline-flex;align-items:center;gap:8px;margin-top:16px;padding:8px 16px;
  background:rgba(62,207,142,.1);border:1px solid rgba(62,207,142,.3);border-radius:999px;
  font-size:.8rem;color:var(--ok);font-weight:600;
}

/* ---------- App shell ---------- */
.app-shell{display:grid;grid-template-columns:230px 1fr;min-height:60vh;margin-top:20px;
  border:1px solid var(--border);border-radius:16px;overflow:hidden;background:var(--bg-alt)}
.app-menu{background:var(--card);border-right:1px solid var(--border);padding:16px 10px;overflow-y:auto}
.app-menu-title{font-size:.64rem;letter-spacing:2px;text-transform:uppercase;color:var(--text-dim);padding:10px 12px 6px}
.app-menu button{
  display:flex;align-items:center;gap:10px;width:100%;text-align:left;font-size:.9rem;
  padding:10px 12px;border-radius:8px;margin-bottom:2px;color:var(--text);
}
.app-menu button:hover{background:var(--bg-alt)}
.app-menu button.active{background:var(--accent-soft);color:var(--accent);font-weight:700}
.app-menu .ico{font-size:1.05rem;width:20px;text-align:center;flex-shrink:0}

.app-main{padding:22px 24px 28px}
.panel{display:none}
.panel.active{display:block;animation:fadeIn .25s var(--ease-out)}
@keyframes fadeIn{from{opacity:0;transform:translateY(4px)}to{opacity:1;transform:none}}
.panel h2{margin:0 0 4px;font-size:1.35rem}
.panel p.desc{color:var(--text-dim);margin:0 0 18px;font-size:.92rem}

.calc-box{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:18px 20px;margin-bottom:16px}
.calc-box h3{margin:0 0 12px;font-size:.95rem;color:var(--accent)}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:12px}
.field{display:flex;flex-direction:column;gap:5px}
.field label{font-size:.72rem;color:var(--text-dim)}
.field select,.field input{
  background:var(--bg-alt);border:1px solid var(--border);color:var(--text);
  padding:10px 12px;border-radius:var(--radius-sm);font-size:.94rem;outline:none;width:100%;
}
.field select:focus,.field input:focus{border-color:var(--accent)}
.calc-btn{background:var(--accent);color:#fff;font-weight:700;padding:10px 20px;border-radius:var(--radius-sm);font-size:.87rem}
.calc-btn:hover{filter:brightness(1.12)}
.result{
  margin-top:12px;padding:13px 15px;border-radius:var(--radius-sm);
  background:var(--accent-soft);border:1px solid rgba(0,93,204,.4);
  font-size:1.05rem;font-weight:700;color:var(--accent);display:none;
}
.result.show{display:block}
.result small{display:block;font-weight:400;color:var(--text-dim);font-size:.73rem;margin-top:4px}

.search-wrap{margin-bottom:18px}
.search-wrap input{
  width:100%;padding:13px 15px;border-radius:var(--radius);border:1px solid var(--border);
  background:var(--card);color:var(--text);font-size:.95rem;outline:none;
}
.search-wrap input:focus{border-color:var(--accent)}
.search-results{display:flex;flex-direction:column;gap:9px}
.search-item{background:var(--card);border:1px solid var(--border);border-radius:var(--radius-sm);padding:13px 15px}
.search-item .tag{display:inline-block;font-size:.6rem;text-transform:uppercase;letter-spacing:1px;color:var(--accent);margin-bottom:5px;font-weight:700}
.search-item .q{font-weight:700;margin-bottom:3px}
.search-item .a{color:var(--text-dim);font-size:.88rem}
.search-empty{color:var(--text-dim);text-align:center;padding:26px 0}

/* ---------- Ad slots ---------- */
.ad-slot{
  margin:26px auto;max-width:1180px;padding:0 20px;
}
.ad-slot .ad-inner{
  border:1px dashed var(--border);border-radius:var(--radius-sm);background:var(--card);
  display:flex;align-items:center;justify-content:center;color:var(--text-dim);
  font-size:.72rem;letter-spacing:1.5px;text-transform:uppercase;font-weight:700;
}
.ad-slot--banner .ad-inner{min-height:90px}
.ad-slot--incontent .ad-inner{min-height:250px}

/* ---------- Content sections ---------- */
section.info{padding:44px 0}
section.info.alt{background:var(--bg-alt)}
section.info h2{font-size:clamp(1.3rem,3vw,1.7rem);text-align:center;margin-bottom:8px}
section.info p.section-sub{text-align:center;color:var(--text-dim);max-width:600px;margin:0 auto 30px}

.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.step{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:22px}
.step .num{
  width:34px;height:34px;border-radius:50%;background:var(--accent-soft);color:var(--accent);
  display:flex;align-items:center;justify-content:center;font-weight:800;margin-bottom:12px;
}
.step h3{font-size:1rem;margin-bottom:6px}
.step p{color:var(--text-dim);font-size:.88rem}

.uses-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.use-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:18px 20px;display:flex;gap:14px;align-items:flex-start}
.use-card .emoji{font-size:1.4rem;flex-shrink:0}
.use-card h3{font-size:.95rem;margin-bottom:4px}
.use-card p{color:var(--text-dim);font-size:.85rem}

.faq{max-width:760px;margin:0 auto;display:flex;flex-direction:column;gap:10px}
.faq details{background:var(--card);border:1px solid var(--border);border-radius:var(--radius-sm);padding:14px 18px}
.faq summary{cursor:pointer;font-weight:700;font-size:.94rem;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:10px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--accent);font-size:1.2rem;flex-shrink:0}
.faq details[open] summary::after{content:"–"}
.faq p{color:var(--text-dim);font-size:.88rem;margin-top:10px}

/* ---------- Footer ---------- */
footer.site{border-top:1px solid var(--border);padding:26px 0;color:var(--text-dim);font-size:.82rem}
footer.site .container{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px}
footer.site nav{display:flex;gap:16px;flex-wrap:wrap}
footer.site a:hover{color:var(--text)}

/* ---------- Personalize panel (modal) ---------- */
dialog{
  border:1px solid var(--border);border-radius:16px;background:var(--card);color:var(--text);
  padding:0;max-width:420px;width:92vw;
}
dialog::backdrop{background:rgba(0,0,0,.6)}
.modal-head{display:flex;align-items:center;justify-content:space-between;padding:18px 20px;border-bottom:1px solid var(--border)}
.modal-head h3{font-size:1.05rem}
.modal-body{padding:18px 20px;display:flex;flex-direction:column;gap:16px}
.modal-body .field label{font-size:.78rem;color:var(--text-dim);margin-bottom:6px;display:block}
.modal-body .field input[type="text"]{
  width:100%;background:var(--bg-alt);border:1px solid var(--border);color:var(--text);
  padding:10px 12px;border-radius:var(--radius-sm);font-size:.95rem;
}
.modal-body .field input[type="color"]{
  width:56px;height:38px;border:1px solid var(--border);border-radius:8px;background:none;padding:2px;
}
.color-row{display:flex;align-items:center;gap:12px}
.emoji-quick{display:flex;gap:8px;flex-wrap:wrap;margin-top:8px}
.emoji-quick button{
  width:36px;height:36px;border-radius:8px;background:var(--bg-alt);border:1px solid var(--border);font-size:1.05rem;
}
.emoji-quick button:hover{background:var(--card-hover)}
.logo-upload-row{display:flex;align-items:center;gap:12px}
.logo-preview{width:44px;height:44px;border-radius:10px;background:var(--bg-alt);border:1px solid var(--border);
  display:flex;align-items:center;justify-content:center;overflow:hidden;font-size:1.2rem}
.logo-preview img{width:100%;height:100%;object-fit:cover}
.file-btn{background:var(--bg-alt);border:1px solid var(--border);padding:8px 14px;border-radius:var(--radius-sm);font-size:.82rem}
.file-btn:hover{background:var(--card-hover)}
.modal-foot{display:flex;justify-content:space-between;gap:10px;padding:16px 20px;border-top:1px solid var(--border)}

/* ---------- Download interstitial popup ---------- */
#downloadDialog .modal-body{text-align:center;padding:26px 20px 10px}
#downloadDialog .big-icon{font-size:2.2rem;margin-bottom:8px}
#downloadDialog .ad-inner{min-height:200px;margin-top:14px}

/* ---------- Corner toast ---------- */
.corner-toast{
  position:fixed;bottom:18px;right:18px;z-index:80;
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius-sm);
  padding:12px 14px;max-width:230px;box-shadow:0 10px 30px rgba(0,0,0,.4);
  display:flex;gap:10px;align-items:flex-start;
  transform:translateY(20px);opacity:0;pointer-events:none;transition:all .3s var(--ease-out);
}
.corner-toast.show{transform:translateY(0);opacity:1;pointer-events:auto}
.corner-toast .txt{font-size:.68rem;text-transform:uppercase;letter-spacing:1px;color:var(--text-dim);font-weight:700}
.corner-toast button.close{color:var(--text-dim);font-size:.9rem;flex-shrink:0}
.corner-toast button.close:hover{color:var(--text)}

/* ---------- Install banner (iOS instructions) ---------- */
.help-list{display:flex;flex-direction:column;gap:8px;font-size:.88rem;color:var(--text-dim)}
.help-list b{color:var(--text)}

/* ---------- Responsive ---------- */
@media (max-width:960px){
  .app-shell{grid-template-columns:1fr}
  .app-menu{display:flex;overflow-x:auto;gap:4px;border-right:0;border-bottom:1px solid var(--border)}
  .app-menu-title{display:none}
  .app-menu button{white-space:nowrap;width:auto}
  .steps{grid-template-columns:1fr}
  .uses-grid{grid-template-columns:1fr}
}
@media (max-width:720px){
  .field-row{grid-template-columns:1fr}
  .app-main{padding:18px 16px}
  nav.main .btn span.txt{display:none}
}
@media (max-width:540px){
  .brand .name-tag small{display:none}
  footer.site .container{flex-direction:column}
}