/* =========================================================
   DrRolp.com — hoja de estilos principal
   Paleta original del sitio:
     oscuro #212121 · secundario (turquesa) #0097A7 · primario (amarillo) #FFC107
     gris #757575 · gris claro #DFE9F3 · blanco #FFFFFF
   ========================================================= */
:root{
  --blanco:#ffffff;
  --oscuro:#212121;
  --primario:#FFC107;     /* amarillo */
  --secundario:#0097A7;   /* turquesa */
  --gris:#757575;
  --gris-claro:#DFE9F3;

  --bg:var(--oscuro);
  --bg-alt:#1a1a1a;       /* bandas alternas */
  --card:#2a2a2a;
  --card-2:#303030;
  --line:#3a3a3a;
  --text:#f2f2f2;
  --muted:#b5b5b5;
  --turq-claro:#4dd0e1;
  --radius:14px;
  --shadow:0 10px 30px rgba(0,0,0,.35);
  --font:"IBM Plex Sans",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--font);font-size:17px;line-height:1.6;color:var(--text);background:var(--bg)}
img{max-width:100%;display:block}
a{color:inherit}
h1,h2,h3,h4{line-height:1.2;margin:0 0 .5em;letter-spacing:-.01em;color:var(--blanco)}
h1{font-size:clamp(2.1rem,4.6vw,3.4rem);font-weight:700}
h2{font-size:clamp(1.6rem,3vw,2.3rem);font-weight:700}
h3{font-size:1.15rem;font-weight:600}
p{margin:0 0 1em}
.wrap{width:min(1160px,100% - 32px);margin-inline:auto}
.muted{color:var(--muted)}
.small{font-size:.875rem}
.skip{position:absolute;left:-999px;top:8px;background:var(--primario);color:var(--oscuro);padding:8px 12px;z-index:100}
.skip:focus{left:8px}
:focus-visible{outline:2px solid var(--primario);outline-offset:3px;border-radius:4px}

.eyebrow{font-family:var(--mono);font-size:.8rem;letter-spacing:.12em;text-transform:uppercase;color:var(--primario);margin-bottom:.8em;font-weight:500}
.hl{color:var(--primario)}

/* ---------- Botones ---------- */
.btn{display:inline-flex;align-items:center;gap:.5em;background:var(--secundario);color:var(--blanco);text-decoration:none;padding:.8em 1.4em;border-radius:8px;border:0;cursor:pointer;font:inherit;font-weight:700;letter-spacing:.01em;transition:transform .15s,box-shadow .15s,background .15s,color .15s}
.btn:hover{background:var(--primario);color:var(--oscuro);transform:translateY(-1px);box-shadow:0 6px 18px rgba(255,193,7,.3)}
.btn-ghost{background:transparent;color:var(--blanco);box-shadow:inset 0 0 0 2px rgba(255,255,255,.35)}
.btn-ghost:hover{background:transparent;color:var(--primario);box-shadow:inset 0 0 0 2px var(--primario)}
.btn-sm{padding:.5em 1em;font-size:.9rem}
.link-arrow{color:var(--blanco);font-weight:600;text-decoration:none;border-bottom:2px solid var(--primario);padding-bottom:2px}
.link-arrow:hover{color:var(--primario)}

/* ---------- Encabezado ---------- */
.site-header{position:sticky;top:0;z-index:50;background:rgba(26,26,26,.95);backdrop-filter:saturate(1.3) blur(10px);-webkit-backdrop-filter:saturate(1.3) blur(10px);border-bottom:3px solid var(--secundario)}
.nav-bar{display:flex;align-items:center;justify-content:space-between;height:72px}
.brand{display:inline-flex;align-items:center;text-decoration:none}
.logo-svg{height:40px;width:auto;display:block}
.logo-img{height:52px;width:auto;border-radius:4px}
.nav{display:flex;align-items:center;gap:.4rem}
.nav a{color:#e0e0e0;text-decoration:none;font-size:.95rem;font-weight:600;padding:.5em .8em;border-radius:6px;transition:background .15s,color .15s}
.nav a:not(.btn):hover{background:var(--primario);color:var(--oscuro)}
.nav a[aria-current="page"]:not(.btn){color:var(--primario)}
.nav a[aria-current="page"]:not(.btn):hover{color:var(--oscuro)}
.nav .btn{margin-left:.6rem;color:var(--blanco)}
.nav .btn:hover{color:var(--oscuro)}
.nav-toggle{display:none;background:none;border:0;padding:8px;cursor:pointer}
.nav-toggle span{display:block;width:22px;height:2px;background:#fff;margin:5px 0;transition:.2s}

/* ---------- Hero ---------- */
.hero{background:
   linear-gradient(100deg,rgba(33,33,33,.97) 0%,rgba(33,33,33,.9) 45%,rgba(0,151,167,.55) 100%),
   url("../img/hero-fondo.jpg") center/cover no-repeat,
   var(--oscuro);
   color:#fff;padding:clamp(56px,9vw,110px) 0 clamp(64px,9vw,120px);overflow:hidden;position:relative}
.hero-grid{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.lead{font-size:1.15rem;color:#d6d6d6;max-width:38em}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin:28px 0 26px}
.hero-tags{list-style:none;padding:0;margin:0;display:flex;flex-wrap:wrap;gap:8px}
.hero-tags li{font-family:var(--mono);font-size:.78rem;color:#e6e6e6;background:rgba(0,0,0,.25);border:1px solid rgba(255,255,255,.18);border-radius:999px;padding:.25em .8em}

.terminal{background:#151515;border:1px solid rgba(255,255,255,.1);border-radius:var(--radius);box-shadow:0 30px 60px rgba(0,0,0,.5);overflow:hidden;min-width:0}
.term-bar{display:flex;align-items:center;gap:7px;padding:11px 14px;background:#262626;border-bottom:1px solid rgba(255,255,255,.06)}
.term-bar i{width:11px;height:11px;border-radius:50%;background:#ff5f57}
.term-bar i:nth-child(2){background:#febc2e}
.term-bar i:nth-child(3){background:#28c840}
.term-bar span{margin-left:10px;font-family:var(--mono);font-size:.75rem;color:#8a8a8a;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.term-body{margin:0;padding:20px 22px;font-family:var(--mono);font-size:.84rem;line-height:1.7;color:#e0e0e0;overflow-x:auto}
.term-body .k{color:var(--turq-claro)}
.term-body .c{color:var(--gris);font-style:italic}
.term-body .f{color:var(--primario)}
.term-body .s{color:var(--primario)}
.cursor{display:inline-block;width:.55em;height:1.1em;background:var(--primario);vertical-align:-.2em;margin-left:2px;animation:blink 1.1s steps(1) infinite}
@keyframes blink{50%{opacity:0}}

/* ---------- Cifras ---------- */
.stats{background:var(--secundario);color:#fff}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.stats-grid>div{padding:28px 24px;border-left:1px solid rgba(255,255,255,.22)}
.stats-grid>div:first-child{border-left:0;padding-left:0}
.stats strong{display:block;font-size:2rem;font-weight:700;color:var(--primario);font-family:var(--mono);letter-spacing:-.02em;text-shadow:0 1px 0 rgba(0,0,0,.25)}
.stats span{color:#f0fbfc;font-size:.92rem;line-height:1.4;display:block}

/* ---------- Secciones ---------- */
.section{padding:clamp(64px,8vw,104px) 0}
.section-head{max-width:720px;margin-bottom:44px}
.section-head.row{max-width:none;display:flex;justify-content:space-between;align-items:flex-end;gap:20px;flex-wrap:wrap}
.band-soft{background:var(--bg-alt)}
.band-dark{background:linear-gradient(135deg,#00838f 0%,var(--secundario) 60%,#00a5b7 100%);color:#fff}
.band-dark .eyebrow{color:var(--primario)}
.band-dark .lead-sm{color:#eafafc;font-size:1.06rem}

.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:28px;transition:border-color .2s,transform .2s,box-shadow .2s}
.card:hover{border-color:var(--secundario);transform:translateY(-3px);box-shadow:var(--shadow)}
.card p{color:var(--muted);margin:0;font-size:.97rem}
.ico{width:46px;height:46px;border-radius:11px;background:var(--secundario);display:grid;place-items:center;margin-bottom:18px}
.ico svg{width:24px;height:24px;fill:none;stroke:var(--primario);stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}

.split{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:start}
blockquote{margin:28px 0 0;padding:18px 22px;border-left:4px solid var(--primario);background:rgba(0,0,0,.18);border-radius:0 10px 10px 0;color:#fff;font-size:1.02rem;font-style:italic}
.checklist{list-style:none;margin:0;padding:0;display:grid;gap:12px}
.checklist li{position:relative;padding:16px 18px 16px 50px;background:rgba(0,0,0,.2);border:1px solid rgba(255,255,255,.14);border-radius:12px;color:#eafafc;font-size:.98rem}
.checklist li strong{color:#fff;font-weight:600}
.checklist li::before{content:"";position:absolute;left:18px;top:19px;width:18px;height:18px;border-radius:5px;background:var(--primario) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23212121' stroke-width='3.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m5 12 5 5 9-10'/%3E%3C/svg%3E") center/12px no-repeat}
.checklist-sm li{padding:10px 12px 10px 40px;font-size:.92rem}
.checklist-sm li::before{left:12px;top:13px;width:16px;height:16px}

.tech-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.tech{border:1px solid var(--line);border-radius:var(--radius);padding:24px;background:var(--card)}
.tech p{color:var(--muted);font-size:.94rem}
.dot{display:inline-block;width:10px;height:10px;border-radius:50%;margin-right:10px;vertical-align:1px}
.dot-oe{background:var(--secundario)}.dot-java{background:var(--primario)}.dot-py{background:var(--turq-claro)}.dot-web{background:var(--gris-claro)}
.chips{list-style:none;padding:0;margin:0;display:flex;flex-wrap:wrap;gap:6px}
.chips li{font-family:var(--mono);font-size:.74rem;background:var(--bg-alt);border:1px solid var(--line);border-radius:6px;padding:.2em .6em;color:var(--gris-claro)}
.chips-sm li{font-size:.7rem}

.steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.steps li{background:var(--card);border:1px solid var(--line);border-top:3px solid var(--secundario);border-radius:var(--radius);padding:26px;position:relative}
.steps li>span{font-family:var(--mono);font-size:.85rem;color:var(--primario);font-weight:500;display:block;margin-bottom:14px}
.steps p{color:var(--muted);font-size:.95rem;margin:0}

/* ---------- Demos ---------- */
.demo-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.demo-grid-4{grid-template-columns:repeat(4,1fr)}
.demo-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column;transition:transform .2s,box-shadow .2s,border-color .2s}
.demo-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:var(--secundario)}
.demo-thumb{position:relative;aspect-ratio:16/10;background:#151515;overflow:hidden}
.demo-thumb img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.demo-placeholder{width:100%;height:100%;display:grid;place-items:center;background:
  linear-gradient(rgba(0,151,167,.12) 1px,transparent 1px) 0 0/22px 22px,
  linear-gradient(90deg,rgba(0,151,167,.12) 1px,transparent 1px) 0 0/22px 22px,#151515}
.demo-placeholder span{font-family:var(--mono);font-size:2.4rem;color:var(--primario);opacity:.9}
.badge{position:absolute;top:12px;left:12px;font-family:var(--mono);font-size:.7rem;padding:.25em .65em;border-radius:999px;background:rgba(33,33,33,.85);color:#fff;border:1px solid rgba(255,255,255,.2)}
.badge-disponible{background:var(--secundario);border-color:transparent}
.demo-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.demo-body h3{margin:0}
.demo-body p{color:var(--muted);font-size:.94rem;margin:0}
.demo-body .link-arrow,.demo-body>.muted{margin-top:auto;align-self:flex-start}
.demo-body .demo-nota{font-size:.82rem;color:var(--primario);border-left:2px solid var(--primario);padding-left:8px}
.note{margin-top:28px;color:var(--muted)}
.note a{color:var(--primario);font-weight:600}

/* ---------- CTA ---------- */
.cta{background:var(--primario);color:var(--oscuro);padding:56px 0}
.cta h2{color:var(--oscuro);margin-bottom:.25em}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap}
.cta p{margin:0;font-size:1.05rem}
.cta .btn-light{background:var(--oscuro);color:#fff}
.cta .btn-light:hover{background:var(--secundario);color:#fff;box-shadow:0 6px 18px rgba(0,0,0,.25)}

/* ---------- Páginas internas ---------- */
.page-head{background:
   linear-gradient(100deg,rgba(33,33,33,.96) 0%,rgba(33,33,33,.88) 55%,rgba(0,151,167,.5) 100%),
   url("../img/hero-fondo.jpg") center 40%/cover no-repeat,var(--oscuro);
   border-bottom:1px solid var(--line);padding:clamp(48px,7vw,84px) 0 clamp(40px,6vw,64px)}
.page-head h1{font-size:clamp(2rem,4vw,2.9rem)}
.page-head .lead{color:#d6d6d6}

/* ---------- Contacto ---------- */
.contact-grid{display:grid;grid-template-columns:1.5fr 1fr;gap:48px;align-items:start}
.contact-form form{display:grid;gap:18px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
label{display:grid;gap:6px;font-weight:500;font-size:.94rem;color:var(--gris-claro)}
input,select,textarea{font:inherit;font-size:1rem;width:100%;padding:.75em .9em;border:1px solid #474747;border-radius:8px;background:var(--card);color:var(--text);transition:border-color .15s,box-shadow .15s}
input::placeholder,textarea::placeholder{color:var(--gris)}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--secundario);box-shadow:0 0 0 3px rgba(0,151,167,.3)}
textarea{resize:vertical;min-height:140px}
.contact-form .btn{justify-self:start}
.field-error{color:#ff8a80;font-size:.85rem;font-weight:500}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.alert{padding:16px 18px;border-radius:10px;margin-bottom:22px}
.alert-ok{background:rgba(0,151,167,.18);border:1px solid var(--secundario);color:#d9f7fa}
.alert-err{background:rgba(255,82,82,.12);border:1px solid #ff8a80;color:#ffd2cc}
.contact-aside{display:grid;gap:20px}
.aside-card{border:1px solid var(--line);border-radius:var(--radius);padding:24px;background:var(--card)}
.aside-dark{background:var(--secundario);border-color:var(--secundario)}
.aside-dark .checklist li{background:rgba(0,0,0,.18)}
.contact-list{list-style:none;margin:0;padding:0;display:grid;gap:14px}
.contact-list li{display:grid;gap:2px}
.contact-list span{font-family:var(--mono);font-size:.72rem;text-transform:uppercase;letter-spacing:.1em;color:var(--gris)}
.contact-list a{color:var(--primario);font-weight:600;word-break:break-word}

/* ---------- Pie ---------- */
.site-footer{background:#181818;color:#cfcfcf;padding:56px 0 24px;font-size:.94rem;border-top:3px solid var(--secundario)}
.site-footer .muted{color:var(--gris)}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:40px;padding-bottom:36px;border-bottom:1px solid rgba(255,255,255,.08)}
.footer-grid p{margin-top:14px;max-width:34em}
.site-footer h4{color:var(--primario);font-size:.8rem;font-family:var(--mono);text-transform:uppercase;letter-spacing:.12em;margin-bottom:14px;font-weight:500}
.site-footer ul{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.site-footer a{text-decoration:none;color:#cfcfcf}
.site-footer a:hover{color:var(--primario)}
.footer-legal{display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;padding-top:20px;font-size:.82rem}
.wa-float{position:fixed;right:20px;bottom:20px;width:56px;height:56px;border-radius:50%;background:#25d366;color:#fff;display:grid;place-items:center;box-shadow:0 8px 24px rgba(0,0,0,.35);z-index:60}

/* ---------- Animación de entrada ---------- */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto!important}.reveal{opacity:1;transform:none}}

/* ---------- Responsivo ---------- */
@media (max-width:1024px){
  .cards,.demo-grid{grid-template-columns:repeat(2,1fr)}
  .tech-grid,.steps,.demo-grid-4{grid-template-columns:repeat(2,1fr)}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .split{grid-template-columns:1fr;gap:36px}
}
@media (max-width:860px){
  .nav-toggle{display:block}
  .nav{position:absolute;top:75px;left:0;right:0;flex-direction:column;align-items:stretch;gap:0;background:#1a1a1a;border-bottom:3px solid var(--secundario);padding:8px 16px 18px;display:none}
  .nav.open{display:flex}
  .nav a{padding:12px 8px;border-bottom:1px solid rgba(255,255,255,.06);border-radius:0}
  .nav .btn{margin:12px 0 0;justify-content:center;border-bottom:0;border-radius:8px}
  .nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
  .nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .stats-grid>div{border-left:0;padding-left:0;border-top:1px solid rgba(255,255,255,.22)}
  .stats-grid>div:nth-child(-n+2){border-top:0}
  .contact-grid,.footer-grid{grid-template-columns:1fr}
}
@media (max-width:600px){
  body{font-size:16px}
  .cards,.demo-grid,.tech-grid,.steps,.demo-grid-4,.form-row{grid-template-columns:1fr}
  .term-body{font-size:.74rem;padding:16px}
  .stats strong{font-size:1.6rem}
  .logo-svg{height:34px}
}