/* Tutorial English College - sitio ejecutivo */
:root {
  --navy: #17376b;
  --navy-900: #0e2347;
  --navy-700: #1f4a8a;
  --orange: #ee6a2c;
  --orange-600: #d95a1e;
  --sky: #5ab4d8;
  --ink: #14213d;
  --muted: #5b6b86;
  --line: #dde4f0;
  --paper: #f5f8fd;
  --white: #fff;
  --radius: 18px;
  --shadow: 0 18px 50px -22px rgba(14, 35, 71, .45);
  --max: 1160px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 84px; }
body {
  margin: 0;
  font-family: "Outfit", system-ui, -apple-system, "Segoe UI", sans-serif;
  font-weight: 300;
  font-size: 18px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; }
h1, h2, h3, h4 { font-weight: 700; line-height: 1.12; margin: 0 0 .5em; letter-spacing: -.01em; }
h1 { font-size: clamp(2.3rem, 5.2vw, 4rem); }
h2 { font-size: clamp(1.8rem, 3.6vw, 2.8rem); }
h3 { font-size: 1.25rem; }
p { margin: 0 0 1em; }
strong, b { font-weight: 600; }

.wrap { width: min(var(--max), 100% - 40px); margin-inline: auto; }
.section { padding: clamp(64px, 9vw, 112px) 0; }
.section.alt { background: var(--paper); }
.section.dark { background: var(--navy); color: #fff; position: relative; overflow: hidden; }
.eyebrow {
  display: inline-block; font-weight: 600; font-size: .8rem; letter-spacing: .16em;
  text-transform: uppercase; color: var(--orange); margin-bottom: 14px;
}
.dark .eyebrow { color: #ff9a68; }
.lead { font-size: 1.2rem; color: var(--muted); max-width: 60ch; }
.dark .lead, .hero .lead, .page-hero .lead { color: #cdd9ee; }
.accent { color: var(--orange); }
.center { text-align: center; }
.center .lead { margin-inline: auto; }
.section-head { max-width: 760px; margin-bottom: 48px; }
.section-head.center { margin-inline: auto; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  padding: 15px 28px; border-radius: 999px; border: 2px solid transparent;
  font: 600 1rem/1 "Outfit", system-ui, sans-serif; text-decoration: none; cursor: pointer;
  transition: transform .15s ease, background .2s ease, box-shadow .2s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--orange); color: #fff; box-shadow: 0 10px 26px -10px rgba(238, 106, 44, .8); }
.btn-primary:hover { background: var(--orange-600); }
.btn-ghost { border-color: rgba(255, 255, 255, .45); color: #fff; }
.btn-ghost:hover { background: rgba(255, 255, 255, .1); }
.btn-outline { border-color: var(--navy); color: var(--navy); }
.btn-outline:hover { background: var(--navy); color: #fff; }
.btn-sm { padding: 11px 20px; font-size: .92rem; }
:focus-visible { outline: 3px solid var(--sky); outline-offset: 3px; }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 50; background: rgba(14, 35, 71, .94);
  backdrop-filter: blur(10px); border-bottom: 1px solid rgba(255, 255, 255, .08);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 76px; gap: 24px; }
.nav .brand img { height: 44px; width: auto; }
.nav ul { display: flex; align-items: center; gap: 30px; list-style: none; margin: 0; padding: 0; }
.nav ul a { color: #dbe5f6; text-decoration: none; font-weight: 400; font-size: .98rem; }
.nav ul a:hover, .nav ul a[aria-current="page"] { color: #fff; }
.nav ul a[aria-current="page"] { border-bottom: 2px solid var(--orange); padding-bottom: 4px; }
.nav-toggle { display: none; background: none; border: 0; color: #fff; padding: 8px; cursor: pointer; }
.nav-toggle svg { width: 28px; height: 28px; }

/* Hero */
.hero { background: var(--navy); color: #fff; position: relative; overflow: hidden; padding: clamp(56px, 8vw, 104px) 0 0; }
.hero::before, .dome-bg::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background:
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 400 400' fill='none' stroke='%23ffffff' stroke-width='6' opacity='.07'%3E%3Cpath d='M200 20v38M188 58h24M176 74h48'/%3E%3Cpath d='M90 250c0-92 50-168 110-168s110 76 110 168'/%3E%3Cpath d='M150 250c0-86 22-168 50-168s50 82 50 168M200 82v168M70 250h260M60 270h280'/%3E%3Cpath d='M90 270v100M140 270v100M200 270v100M260 270v100M310 270v100M70 370h260'/%3E%3C/svg%3E") no-repeat 108% 20% / min(780px, 90vw),
    radial-gradient(1000px 500px at 85% -10%, rgba(90, 180, 216, .22), transparent 60%);
}
.hero-grid { position: relative; display: grid; grid-template-columns: 1.1fr .9fr; gap: 56px; align-items: center; padding-bottom: 72px; }
.hero h1 .accent { display: inline-block; }
.hero .lead { margin: 22px 0 32px; font-size: 1.28rem; }
.cta-row { display: flex; flex-wrap: wrap; gap: 14px; }
.hero-proof { position: relative; display: grid; grid-template-columns: repeat(3, auto); justify-content: start; gap: 44px; margin-top: 44px; }
.hero-proof div b { display: block; font-size: 2.1rem; font-weight: 700; line-height: 1; color: #fff; }
.hero-proof div span { font-size: .88rem; color: #b9c9e6; }
.logos-strip {
  position: relative; border-top: 1px solid rgba(255, 255, 255, .12); padding: 22px 0;
  display: flex; flex-wrap: wrap; align-items: center; gap: 12px 34px; color: #b9c9e6; font-size: .95rem;
}
.logos-strip strong { color: #fff; font-weight: 600; letter-spacing: .02em; font-size: 1.05rem; }

/* Plan card (hero visual) */
.plan {
  background: #fff; color: var(--ink); border-radius: 24px; padding: 28px; box-shadow: 0 30px 70px -25px rgba(0, 0, 0, .6);
  position: relative;
}
.plan-tag {
  position: absolute; top: -14px; right: 22px; background: var(--orange); color: #fff; font-weight: 600;
  font-size: .72rem; letter-spacing: .12em; text-transform: uppercase; padding: 6px 12px; border-radius: 999px;
}
.plan h3 { font-size: 1.05rem; color: var(--muted); font-weight: 500; margin-bottom: 4px; }
.plan .goal { font-size: 1.35rem; font-weight: 700; line-height: 1.25; margin-bottom: 20px; }
.plan-meta { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 22px; }
.chip { background: var(--paper); border: 1px solid var(--line); border-radius: 999px; padding: 5px 12px; font-size: .82rem; font-weight: 500; color: var(--navy); }
.bar { margin-bottom: 14px; }
.bar-top { display: flex; justify-content: space-between; font-size: .9rem; font-weight: 500; margin-bottom: 6px; }
.bar-top span:last-child { color: var(--muted); font-weight: 400; }
.bar-track { height: 9px; border-radius: 9px; background: #e8eef8; overflow: hidden; }
.bar-fill { height: 100%; border-radius: 9px; background: linear-gradient(90deg, var(--navy-700), var(--sky)); transition: width 1.2s cubic-bezier(.2, .7, .2, 1); }
.plan-foot { display: flex; align-items: center; gap: 12px; margin-top: 22px; padding-top: 18px; border-top: 1px solid var(--line); font-size: .92rem; color: var(--muted); }
.dot { width: 10px; height: 10px; border-radius: 50%; background: #2fbf71; box-shadow: 0 0 0 5px rgba(47, 191, 113, .18); flex: none; }

/* Cards & grids */
.grid { display: grid; gap: 22px; }
.g2 { grid-template-columns: repeat(2, 1fr); }
.g3 { grid-template-columns: repeat(3, 1fr); }
.g4 { grid-template-columns: repeat(4, 1fr); }
.card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; }
.card h3 { margin-bottom: 8px; }
.card p { color: var(--muted); margin: 0; font-size: 1rem; }
.icon {
  width: 52px; height: 52px; border-radius: 14px; background: rgba(238, 106, 44, .12); color: var(--orange);
  display: grid; place-items: center; margin-bottom: 18px;
}
.icon svg { width: 26px; height: 26px; }
.pain { display: flex; gap: 16px; align-items: flex-start; }
.pain .x {
  flex: none; width: 34px; height: 34px; border-radius: 50%; background: rgba(238, 106, 44, .12); color: var(--orange);
  display: grid; place-items: center; font-weight: 700; margin-top: 2px;
}
.pain p { color: var(--ink); font-weight: 400; }
.callout {
  margin-top: 36px; background: var(--navy); color: #fff; border-radius: var(--radius); padding: 30px 34px;
  display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap;
}
.callout p { margin: 0; font-size: 1.3rem; font-weight: 500; max-width: 46ch; }

/* Program path */
.path { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; margin-top: 54px; position: relative; }
.path::before { content: ""; position: absolute; left: 6%; right: 6%; top: 27px; height: 2px; background: repeating-linear-gradient(90deg, var(--sky) 0 8px, transparent 8px 16px); }
.step { padding: 0 14px; position: relative; text-align: center; }
.step .num {
  width: 54px; height: 54px; border-radius: 50%; background: var(--navy); color: #fff; font-weight: 700; font-size: 1.15rem;
  display: grid; place-items: center; margin: 0 auto 18px; position: relative; box-shadow: 0 0 0 8px var(--paper);
}
.step h3 { font-size: 1.1rem; }
.step p { font-size: .96rem; color: var(--muted); }
.note-box {
  margin-top: 44px; display: flex; gap: 18px; align-items: flex-start; background: #fff; border: 1px dashed var(--sky);
  border-radius: var(--radius); padding: 24px 28px;
}
.note-box .icon { margin: 0; flex: none; }
.note-box p { margin: 0; color: var(--ink); }

/* Class flow (dark) */
.flow { display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; margin: 44px 0 40px; counter-reset: f; }
.flow li {
  list-style: none; counter-increment: f; background: rgba(255, 255, 255, .06); border: 1px solid rgba(255, 255, 255, .14);
  border-radius: 16px; padding: 20px 18px; position: relative;
}
.flow li::before { content: "0" counter(f); display: block; font-weight: 700; color: var(--orange); font-size: .95rem; margin-bottom: 10px; }
.flow li b { display: block; font-size: 1.05rem; margin-bottom: 4px; }
.flow li span { font-size: .9rem; color: #c3d1ea; line-height: 1.45; display: block; }
.principles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.principles div { border-left: 3px solid var(--orange); padding-left: 18px; }
.principles h3 { margin-bottom: 6px; font-size: 1.1rem; }
.principles p { color: #c3d1ea; margin: 0; font-size: .98rem; }
ul.flow { padding: 0; }

/* Journey */
.journey { counter-reset: j; }
.journey .card { position: relative; padding-top: 44px; }
.journey .card::before {
  counter-increment: j; content: counter(j); position: absolute; top: -20px; left: 28px; width: 42px; height: 42px; border-radius: 50%;
  background: var(--orange); color: #fff; font-weight: 700; display: grid; place-items: center; box-shadow: 0 8px 20px -8px rgba(238, 106, 44, .8);
}

/* Cert */
.cert { display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: center; }
.cert-card {
  background: #fff; color: var(--ink); border-radius: 22px; padding: 30px; box-shadow: 0 28px 70px -28px rgba(0, 0, 0, .65);
}
.cert-card .badge {
  display: flex; align-items: center; gap: 14px; margin-bottom: 22px;
}
.cert-card .badge .seal {
  width: 58px; height: 58px; border-radius: 50%; background: radial-gradient(circle at 30% 30%, #f6d27a, #c9902a); color: #fff;
  display: grid; place-items: center; font-weight: 700; font-size: .62rem; letter-spacing: .1em; box-shadow: 0 6px 16px -6px rgba(201, 144, 42, .9);
}
.cert-card h3 { margin: 0; font-size: 1.2rem; }
.cert-card .sub { color: var(--muted); font-size: .92rem; margin: 0; }
.logo-row { display: flex; flex-wrap: wrap; align-items: center; gap: 22px 34px; padding-top: 22px; border-top: 1px solid var(--line); }
.logo-row img { height: 46px; width: auto; object-fit: contain; }
.check-list { list-style: none; padding: 0; margin: 24px 0 0; display: grid; gap: 12px; }
.check-list li { display: flex; gap: 12px; align-items: flex-start; }
.check-list li::before {
  content: ""; flex: none; width: 22px; height: 22px; margin-top: 3px; border-radius: 50%; background: var(--orange)
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12.5l4.5 4.5L19 7.5'/%3E%3C/svg%3E") center / 14px no-repeat;
}

/* Companies */
.who { border-top: 4px solid var(--navy); }
.who .role { font-size: .78rem; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; color: var(--orange); margin-bottom: 10px; }

/* FAQ */
.faq { max-width: 820px; margin-inline: auto; }
.faq details { border-bottom: 1px solid var(--line); padding: 4px 0; }
.faq summary { cursor: pointer; font-weight: 600; font-size: 1.12rem; padding: 18px 40px 18px 0; list-style: none; position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 6px; top: 50%; transform: translateY(-50%); font-size: 1.6rem; color: var(--orange); font-weight: 400; }
.faq details[open] summary::after { content: "\2212"; }
.faq details p { color: var(--muted); padding-bottom: 18px; margin: 0; }

/* Contact */
.contact { display: grid; grid-template-columns: .9fr 1.1fr; gap: 56px; align-items: start; }
.contact-list { list-style: none; padding: 0; margin: 28px 0 0; display: grid; gap: 14px; }
.contact-list li { display: flex; gap: 14px; align-items: flex-start; color: #dbe5f6; }
.contact-list svg { width: 22px; height: 22px; flex: none; color: var(--orange); margin-top: 3px; }
.contact-list a { text-decoration: none; border-bottom: 1px solid rgba(255, 255, 255, .3); }
form.lead-form { background: #fff; color: var(--ink); border-radius: 22px; padding: 32px; box-shadow: 0 28px 70px -28px rgba(0, 0, 0, .6); display: grid; gap: 16px; grid-template-columns: 1fr 1fr; }
.lead-form .full { grid-column: 1 / -1; }
.lead-form label { display: block; font-size: .86rem; font-weight: 600; margin-bottom: 6px; }
.lead-form input, .lead-form select, .lead-form textarea {
  width: 100%; font: 400 1rem "Outfit", system-ui, sans-serif; color: var(--ink); background: var(--paper); border: 1.5px solid var(--line);
  border-radius: 12px; padding: 13px 14px; transition: border-color .2s, background .2s;
}
.lead-form input:focus, .lead-form select:focus, .lead-form textarea:focus { outline: none; border-color: var(--navy-700); background: #fff; }
.seg { display: flex; gap: 10px; flex-wrap: wrap; }
.seg label { margin: 0; font-weight: 500; cursor: pointer; }
.seg input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.seg span { display: inline-block; padding: 10px 18px; border-radius: 999px; border: 1.5px solid var(--line); background: var(--paper); font-size: .94rem; transition: all .2s; }
.seg input:checked + span { background: var(--navy); border-color: var(--navy); color: #fff; }
.seg input:focus-visible + span { outline: 3px solid var(--sky); outline-offset: 2px; }
.lead-form .fine { font-size: .82rem; color: var(--muted); margin: 0; }
.lead-form .btn { width: 100%; font-size: 1.05rem; padding: 17px; }

/* Footer */
.site-footer { background: var(--navy-900); color: #b9c9e6; padding: 64px 0 28px; font-size: .96rem; }
.foot-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 36px; margin-bottom: 44px; }
.site-footer img { height: 48px; width: auto; margin-bottom: 16px; }
.site-footer h4 { color: #fff; font-size: .82rem; letter-spacing: .14em; text-transform: uppercase; margin-bottom: 14px; }
.site-footer a { text-decoration: none; }
.site-footer a:hover { color: #fff; }
.site-footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.legal { border-top: 1px solid rgba(255, 255, 255, .1); padding-top: 22px; font-size: .85rem; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; }

/* WhatsApp float */
.wa-float {
  position: fixed; right: 20px; bottom: 20px; z-index: 60; width: 58px; height: 58px; border-radius: 50%; background: #25d366; color: #fff;
  display: grid; place-items: center; box-shadow: 0 12px 30px -8px rgba(0, 0, 0, .5); transition: transform .2s;
}
.wa-float:hover { transform: scale(1.08); }
.wa-float svg { width: 30px; height: 30px; }

/* About page */
.page-hero { background: var(--navy); color: #fff; position: relative; overflow: hidden; padding: clamp(64px, 9vw, 120px) 0; }
.page-hero .wrap { position: relative; }
.page-hero .tagline { font-size: clamp(1.1rem, 2vw, 1.4rem); color: #cdd9ee; max-width: 52ch; margin-top: 18px; }
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: start; }
.big-quote { font-size: clamp(1.5rem, 2.8vw, 2.2rem); font-weight: 600; line-height: 1.25; letter-spacing: -.01em; }
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.stat { text-align: center; padding: 30px 18px; border-radius: var(--radius); background: #fff; border: 1px solid var(--line); }
.stat b { display: block; font-size: 2.8rem; font-weight: 700; color: var(--navy); line-height: 1; }
.stat span { color: var(--muted); font-size: .96rem; }
.alliances { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.alliance { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; display: grid; gap: 18px; align-content: space-between; }
.alliance .logo-box { height: 80px; display: flex; align-items: center; }
.alliance img { max-height: 70px; width: auto; object-fit: contain; }
.alliance p { margin: 0; color: var(--muted); font-size: .97rem; }
.cta-band { background: linear-gradient(120deg, var(--navy), var(--navy-700)); color: #fff; border-radius: 28px; padding: clamp(32px, 6vw, 64px); display: flex; align-items: center; justify-content: space-between; gap: 32px; flex-wrap: wrap; }
.cta-band h2 { margin: 0 0 8px; }
.cta-band p { margin: 0; color: #cdd9ee; max-width: 46ch; }

/* Reveal */
.js .reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s ease, transform .7s ease; }
.js .reveal.in { opacity: 1; transform: none; }
.no-js .plan .bar-fill, .plan .bar-fill { width: var(--w); }
.js .plan .bar-fill { width: 0; }
.js .plan.in .bar-fill { width: var(--w); }

/* Responsive */
@media (max-width: 980px) {
  .hero-grid, .cert, .contact, .split { grid-template-columns: 1fr; gap: 44px; }
  .g4 { grid-template-columns: repeat(2, 1fr); }
  .g3, .alliances, .principles { grid-template-columns: 1fr 1fr; }
  .flow { grid-template-columns: 1fr 1fr; }
  .path { grid-template-columns: 1fr 1fr; gap: 40px 0; }
  .path::before { display: none; }
  .foot-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 760px) {
  body { font-size: 17px; }
  .nav-toggle { display: block; }
  .nav ul {
    position: absolute; top: 76px; left: 0; right: 0; flex-direction: column; align-items: stretch; gap: 0; background: var(--navy-900);
    padding: 8px 20px 20px; display: none; border-bottom: 1px solid rgba(255, 255, 255, .1);
  }
  .nav ul.open { display: flex; }
  .nav ul li a { display: block; padding: 14px 0; }
  .nav ul li:last-child { margin-top: 8px; }
  .nav ul li:last-child .btn { width: 100%; }
  .g2, .g3, .g4, .alliances, .principles, .stats, .flow, .path { grid-template-columns: 1fr; }
  .hero-proof { grid-template-columns: repeat(3, 1fr); gap: 16px; }
  .hero-proof div b { font-size: 1.6rem; }
  .hero-proof div span { font-size: .78rem; }
  form.lead-form { grid-template-columns: 1fr; padding: 24px; }
  .foot-grid { grid-template-columns: 1fr; }
  .callout, .cta-band { flex-direction: column; align-items: flex-start; }
  .btn { width: 100%; }
  .cta-row .btn { width: 100%; }
  .btn-sm { width: auto; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .bar-fill { transition: none; }
}