/* =========================================================================
   Guía SMTP — estilos propios. Tokens heredados de docs.css.
   ========================================================================= */

.guide-smtp .guide-hero{padding:72px 0 28px}
.guide-smtp .guide-hero h1{margin-bottom:12px}
.guide-smtp .section-lead{color:var(--text-2);max-width:54ch;margin:0 0 22px;text-align:start}

.smtp-conn{margin:0;display:grid;gap:10px;
  grid-template-columns:repeat(2,minmax(0,1fr))}
.smtp-conn > div{display:grid;gap:4px;padding:14px 16px;border:1px solid var(--line);
  border-radius:var(--r);background:var(--surface)}
.smtp-conn dt{margin:0;font-family:var(--mono);font-size:11.5px;font-weight:600;
  letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.smtp-conn dd{margin:0;display:flex;align-items:center;gap:8px;min-width:0}
.smtp-conn code{font-size:15px;background:transparent;border:0;padding:0;color:var(--text)}
.smtp-conn span{font-family:var(--mono);font-size:15px;font-weight:500;color:var(--text)}
.smtp-conn dd .smtp-copy{margin-left:auto}

.smtp-copy{flex:0 0 auto;display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;padding:0;border:1px solid var(--line);border-radius:var(--r);
  background:var(--bg);color:var(--text-2);font-size:14px;cursor:pointer;line-height:1}
.smtp-copy:hover{border-color:var(--brand-lift);color:var(--brand-ink)}
.smtp-copy.is-copied{border-color:var(--ok-border);color:var(--ok);background:var(--ok-bg)}

.smtp-warn{margin:18px 0 0;padding:14px 16px;border-left:3px solid var(--brand);
  background:var(--brand-soft);border-radius:0 var(--r) var(--r) 0;font-size:15px;
  line-height:1.5;color:var(--text-2)}

/* Demo estilo landing «cómo funciona» */
.smtp-demo{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.1fr);
  gap:28px 40px;align-items:stretch;margin-top:8px}
.smtp-steps{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:0}
.smtp-step{margin:0}
.smtp-step-btn{display:flex;gap:14px;align-items:flex-start;width:100%;padding:14px 12px;
  border:1px solid transparent;border-radius:var(--r-lg);background:transparent;
  color:inherit;font:inherit;text-align:left;cursor:pointer;
  transition:background-color .16s ease,border-color .16s ease}
.smtp-step-btn:hover{background:var(--surface);border-color:var(--line)}
.smtp-step.is-active .smtp-step-btn{background:var(--surface);border-color:var(--line);
  box-shadow:var(--shadow-xs)}
.smtp-step-num{flex:0 0 auto;font-family:var(--display);font-weight:900;font-size:26px;
  line-height:1;color:var(--brand-lift);letter-spacing:-.03em;min-width:1.2ch}
.smtp-step.is-active .smtp-step-num{color:var(--brand)}
.smtp-step-copy{display:flex;flex-direction:column;gap:5px;min-width:0}
.smtp-step-title{font-family:var(--display);font-weight:700;font-size:18px;
  letter-spacing:-.015em;color:var(--text)}
.smtp-step-body{font-size:14.5px;line-height:1.45;color:var(--muted)}
.smtp-step.is-active .smtp-step-body{color:var(--text-2)}
.smtp-step-arrow{display:flex;align-items:center;justify-content:center;
  width:calc(12px + 14px + 1.2ch);height:18px;margin:1px 0;color:var(--brand);
  opacity:.4;pointer-events:none}
.smtp-step-arrow svg{display:block;width:14px;height:14px}

.smtp-stage{min-width:0;display:flex}
.smtp-window{border:1px solid var(--line);border-radius:12px;overflow:hidden;
  background:var(--surface);width:100%;min-height:260px;display:flex;flex-direction:column;
  box-shadow:var(--shadow-md)}
.smtp-chrome{display:flex;align-items:center;gap:12px;padding:10px 14px;border-bottom:1px solid var(--line);
  background:linear-gradient(180deg,var(--surface) 0%,var(--surface-3) 100%)}
.smtp-chrome-lbl{font-family:var(--mono);font-size:11.5px;font-weight:600;letter-spacing:.12em;
  text-transform:uppercase;color:var(--brand-ink)}
.smtp-scenes{display:grid;grid-template-columns:minmax(0,1fr);min-width:0;
  flex:1 1 auto;padding:22px 22px 26px}
.smtp-scene{grid-area:1 / 1;min-width:0;opacity:0;visibility:hidden;pointer-events:none;
  transform:translateY(10px);
  transition:opacity .35s ease,transform .35s ease,visibility 0s linear .35s}
.smtp-scene.is-active{opacity:1;visibility:visible;pointer-events:auto;transform:none;
  transition:opacity .35s ease,transform .35s ease}
.smtp-scene-kicker{margin:0 0 12px;font-family:var(--mono);font-size:11.5px;font-weight:600;
  letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.smtp-term{margin:0;padding:14px 16px;border:1px solid var(--line);border-radius:var(--r);
  background:var(--bg);font-size:13px;line-height:1.55;overflow-x:auto}
.smtp-term code{display:block;background:transparent;border:0;padding:0;font-size:inherit;
  color:var(--text);white-space:pre}
.smtp-line{display:block;opacity:0;transform:translateY(6px)}
.smtp-line-out{color:var(--text)}
.smtp-line-in{color:var(--brand-ink)}
.smtp-demo[data-step="0"] .smtp-scene[data-scene="0"].is-active .smtp-line,
.smtp-demo[data-step="1"] .smtp-scene[data-scene="1"].is-active .smtp-line,
.smtp-demo[data-step="2"] .smtp-scene[data-scene="2"].is-active .smtp-line{
  animation:smtp-line-in .35s ease forwards}
.smtp-demo[data-step="0"] .smtp-scene[data-scene="0"].is-active .smtp-line:nth-child(1),
.smtp-demo[data-step="1"] .smtp-scene[data-scene="1"].is-active .smtp-line:nth-child(1),
.smtp-demo[data-step="2"] .smtp-scene[data-scene="2"].is-active .smtp-line:nth-child(1){animation-delay:.08s}
.smtp-demo[data-step="0"] .smtp-scene[data-scene="0"].is-active .smtp-line:nth-child(2),
.smtp-demo[data-step="1"] .smtp-scene[data-scene="1"].is-active .smtp-line:nth-child(2),
.smtp-demo[data-step="2"] .smtp-scene[data-scene="2"].is-active .smtp-line:nth-child(2){animation-delay:.22s}
.smtp-demo[data-step="0"] .smtp-scene[data-scene="0"].is-active .smtp-line:nth-child(3),
.smtp-demo[data-step="1"] .smtp-scene[data-scene="1"].is-active .smtp-line:nth-child(3),
.smtp-demo[data-step="2"] .smtp-scene[data-scene="2"].is-active .smtp-line:nth-child(3){animation-delay:.36s}

.smtp-pill{display:inline-flex;align-items:center;margin:16px 0 0;padding:6px 11px;
  border-radius:var(--r);font-size:13.5px;font-weight:600;line-height:1.2;
  opacity:0;transform:translateY(6px)}
.smtp-pill-ok{background:var(--ok-bg);color:var(--ok);border:1px solid var(--ok-border)}
.smtp-demo[data-step="0"] .smtp-scene[data-scene="0"].is-active .smtp-pill,
.smtp-demo[data-step="1"] .smtp-scene[data-scene="1"].is-active .smtp-pill,
.smtp-demo[data-step="2"] .smtp-scene[data-scene="2"].is-active .smtp-pill{
  animation:smtp-rise .35s ease .55s forwards}

@keyframes smtp-line-in{to{opacity:1;transform:none}}
@keyframes smtp-rise{to{opacity:1;transform:none}}

/* Snippets */
.smtp-tabs{display:flex;flex-wrap:wrap;gap:6px;margin:0 0 12px}
.smtp-tab{padding:9px 14px;border:1px solid var(--line);border-radius:var(--r);
  background:var(--surface);color:var(--text-2);font:inherit;font-size:14.5px;font-weight:600;
  cursor:pointer;min-height:44px}
.smtp-tab:hover{border-color:var(--brand-lift);color:var(--text)}
.smtp-tab.is-active{background:var(--brand-soft);border-color:var(--brand-lift);color:var(--brand-ink)}
.smtp-tabpanel{margin:0}
.smtp-snippet{position:relative;margin:0;padding:18px 62px 18px 18px;border:1px solid var(--line);
  border-radius:var(--r-lg);background:var(--surface);overflow-x:auto;font-size:13.5px;
  line-height:1.55}
.smtp-snippet code{display:block;background:transparent;border:0;padding:0;white-space:pre;
  color:var(--text);font-size:inherit}
.smtp-copy-block{position:absolute;top:10px;right:10px}

.smtp-fails{list-style:none;margin:0;padding:0;display:grid;gap:24px}
.smtp-fails > li{margin:0;padding:0;
  background:transparent}
.smtp-fails h3{margin:0 0 8px;font-size:19px}
.smtp-fails p{margin:0;color:var(--text-2);font-size:15.5px}



@media (prefers-reduced-motion:reduce){
  .smtp-scene{transform:none;transition:none}
  .smtp-line,.smtp-pill{opacity:1;transform:none;animation:none !important}
}

@media (max-width:900px){
  .smtp-demo{grid-template-columns:1fr;gap:22px}
  .smtp-stage{order:-1}
  .smtp-window{min-height:240px}
}

@media (max-width:760px){
  .guide-smtp .guide-hero{padding:52px 0 20px}
  .smtp-conn{grid-template-columns:1fr}
}