/* Landing pública — extensión editorial del sistema industrial AppSIG. */
:root { scroll-behavior: smooth; }
body { overflow-x: hidden; }
.skip-link { position: fixed; z-index: 100; top: 8px; left: 8px; padding: 10px 14px; color: var(--amber-ink); background: var(--amber); border-radius: var(--radius-sm); transform: translateY(calc(-100% - 16px)); }
.skip-link:focus { transform: translateY(0); }
.lp-shell { width: min(1180px, calc(100% - 40px)); margin-inline: auto; }
.lp-nav-shell { position: sticky; top: 0; z-index: 40; background: rgba(18, 21, 25, .94); border-bottom: 1px solid var(--line); backdrop-filter: blur(16px); }
.lp-nav { width: min(1180px, calc(100% - 40px)); min-height: 72px; margin-inline: auto; display: flex; align-items: center; gap: 30px; }
.lp-brand, .lp-footer-brand { display: inline-flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; font: 700 20px var(--font-display); letter-spacing: .12em; text-transform: uppercase; }
.lp-brand img, .lp-footer-brand img { border-radius: 8px; }
.lp-nav-links { display: flex; gap: 26px; margin-left: auto; }
.lp-nav-links a, .lp-footer-links a { color: var(--text-dim); text-decoration: none; font-size: 13px; }
.lp-nav-links a:hover, .lp-footer-links a:hover { color: var(--text); }
.lp-nav-login { padding-inline: 18px; }

.lp-sst-story { position: relative; isolation: isolate; overflow: clip; background: #121519; }
.lp-sst-story::before {
  content: ''; position: absolute; inset: 0; z-index: -2; pointer-events: none;
  background:
    linear-gradient(rgba(255,255,255,.026) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.026) 1px, transparent 1px),
    radial-gradient(circle at 76% 31%, rgba(255,176,0,.16), transparent 28%),
    radial-gradient(circle at 72% 66%, rgba(75,91,108,.16), transparent 34%);
  background-size: 42px 42px, 42px 42px, auto, auto;
  mask-image: linear-gradient(to bottom, #000 0, #000 84%, transparent 100%);
}

.lp-hero { position: relative; z-index: 1; min-height: max(720px, calc(100svh - 72px)); display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr); align-items: center; gap: 40px; padding-block: 92px 84px; }
.lp-hero-copy { width: min(100%, 690px); }
.lp-hero-visual { position: relative; display: grid; place-items: center; }
.lp-hero-visual img {
  width: min(100%, 520px); height: auto;
  filter: drop-shadow(0 34px 34px rgba(0,0,0,.46));
  animation: lp-hero-float 9s ease-in-out infinite;
}
.lp-hero-halo {
  position: absolute; width: min(80%, 440px); aspect-ratio: 1;
  border: 1px solid rgba(255,176,0,.16); border-radius: 50%;
}
.lp-hero-halo::before, .lp-hero-halo::after { content: ''; position: absolute; border: 1px solid rgba(151,164,179,.12); border-radius: 50%; }
.lp-hero-halo::before { inset: 11%; }
.lp-hero-halo::after { inset: 25%; }
@keyframes lp-hero-float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-14px); }
}
@media (prefers-reduced-motion: reduce) {
  .lp-hero-visual img { animation: none; }
}
.lp-kicker, .lp-overline { color: var(--amber); font: 700 12px var(--font-display); letter-spacing: .2em; text-transform: uppercase; }
.lp-hero h1, .lp-section h2, .lp-method h2, .lp-final h2 { margin: 0; text-transform: none; letter-spacing: -.025em; line-height: .98; }
.lp-hero h1 { max-width: 720px; font-size: clamp(3.4rem, 7vw, 6.5rem); }
.lp-lead { max-width: 610px; margin: 28px 0 0; color: #b6c0cc; font-size: clamp(1rem, 1.5vw, 1.18rem); line-height: 1.75; }
.lp-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 24px; margin-top: 34px; }
.lp-main-cta { min-height: 48px; padding-inline: 22px; }
.lp-text-link { color: var(--text); font-weight: 650; text-decoration: none; border-bottom: 1px solid var(--line); padding-block: 8px; }
.lp-text-link:hover { color: var(--amber); border-color: var(--amber); }
.lp-proof { max-width: 560px; margin-top: 30px; padding-top: 20px; color: var(--text-dim); font-size: 12px; border-top: 1px solid var(--line); }

.lp-sst-continuation { position: relative; z-index: 1; display: flex; align-items: center; padding-block: 120px; }
.lp-sst-narrative { width: min(47%, 540px); }
.lp-sst-narrative h2 { margin: 0; max-width: 530px; font-size: clamp(2.9rem, 5.6vw, 5.7rem); line-height: .96; letter-spacing: -.025em; text-transform: none; }
.lp-sst-phases { list-style: none; margin: 52px 0 0; padding: 0; border-top: 1px solid #3a434e; }
.lp-sst-phases li { display: grid; grid-template-columns: 48px 1fr; gap: 18px; padding-block: 22px; border-bottom: 1px solid #3a434e; }
.lp-sst-phases li > span { color: var(--amber); font: 700 11px var(--font-display); letter-spacing: .12em; }
.lp-sst-phases strong { color: var(--text); font: 700 17px var(--font-display); letter-spacing: .08em; text-transform: uppercase; }
.lp-sst-phases p { margin: 5px 0 0; color: #9da8b5; line-height: 1.6; }

.lp-context { border-block: 1px solid var(--line); background: #161b21; }
.lp-context .lp-shell { min-height: 84px; display: flex; align-items: center; justify-content: space-between; gap: 22px; overflow-x: auto; }
.lp-context span { flex: 0 0 auto; color: var(--text-dim); font-size: 11px; letter-spacing: .08em; text-transform: uppercase; }
.lp-context span:first-child { color: var(--text); font-weight: 700; }

.lp-section { padding-block: 132px; }
.lp-section-intro { display: grid; grid-template-columns: minmax(0, 1fr) minmax(300px, .55fr); gap: 28px 80px; align-items: end; margin-bottom: 70px; }
.lp-section-intro .lp-kicker { grid-column: 1 / -1; margin: 0; }
.lp-section h2, .lp-method h2, .lp-final h2 { font-size: clamp(2.6rem, 5vw, 5.1rem); }
.lp-section-intro > p:last-child { margin: 0; color: var(--text-dim); line-height: 1.75; }
.lp-capabilities { border-top: 1px solid var(--line); }
.lp-capabilities article { display: grid; grid-template-columns: 180px minmax(260px, .8fr) minmax(300px, .7fr); gap: 30px; align-items: start; padding-block: 38px; border-bottom: 1px solid var(--line); }
.lp-capabilities article > span { color: var(--amber); font: 700 11px var(--font-display); letter-spacing: .13em; text-transform: uppercase; }
.lp-capabilities h3 { margin: 0; text-transform: none; letter-spacing: -.01em; font-size: 24px; line-height: 1.15; }
.lp-capabilities p { margin: 0; color: var(--text-dim); line-height: 1.7; }

.lp-method { padding-block: 118px; color: #17191d; background: #e9edf2; }
.lp-method-grid { display: grid; grid-template-columns: .85fr 1.15fr; gap: 90px; }
.lp-method .lp-kicker { color: #755000; }
.lp-method-copy > p:not(.lp-kicker) { max-width: 540px; color: #4d5866; line-height: 1.75; }
.lp-method .lp-text-link { color: #17191d; border-color: #aab2bd; }
.lp-steps { list-style: none; margin: 0; padding: 0; border-top: 1px solid #abb4bf; }
.lp-steps li { display: grid; grid-template-columns: 64px 1fr; gap: 20px; padding: 28px 0; border-bottom: 1px solid #abb4bf; }
.lp-steps li > span { color: #755000; font: 700 13px var(--font-display); }
.lp-steps strong { font: 700 24px var(--font-display); text-transform: uppercase; letter-spacing: .04em; }
.lp-steps p { margin: 5px 0 0; color: #4d5866; }

.lp-pricing-section { padding-bottom: 110px; }
.lp-pricing-intro { margin-bottom: 52px; }
.lp-pricing { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); border: 1px solid var(--line); }
.lp-plan { min-height: 390px; display: flex; flex-direction: column; padding: 28px 24px; border-right: 1px solid var(--line); }
.lp-plan:last-child { border-right: 0; }
.lp-plan-name { margin: 0; color: var(--text-dim); font: 700 12px var(--font-display); letter-spacing: .16em; text-transform: uppercase; }
.lp-plan-price { margin: 20px 0 0; color: var(--text); font: 700 clamp(1.8rem, 3vw, 2.55rem) var(--font-display); letter-spacing: -.02em; }
.lp-plan-price small { color: var(--text-dim); font: 400 11px var(--font-body); letter-spacing: 0; }
.lp-plan-trial { min-height: 30px; margin: 8px 0 18px; color: var(--amber); font-size: 12px; }
.lp-plan ul { list-style: none; margin: 0 0 28px; padding: 18px 0 0; border-top: 1px solid var(--line); }
.lp-plan li { position: relative; margin: 9px 0; padding-left: 16px; color: var(--text-dim); font-size: 12px; line-height: 1.5; }
.lp-plan li::before { content: ''; position: absolute; top: .55em; left: 0; width: 5px; height: 5px; background: var(--amber); }
.lp-plan .btn { width: 100%; justify-content: center; margin-top: auto; }
.lp-pricing-state { grid-column: 1 / -1; margin: 0; padding: 44px; color: var(--text-dim); text-align: center; }
.lp-pricing-note { margin-top: 16px; color: var(--text-dim); font-size: 11px; }

.lp-final { display: grid; grid-template-columns: 1fr auto; align-items: end; gap: 50px; padding-block: 90px; border-top: 1px solid var(--line); }
.lp-final .lp-kicker { margin: 0 0 18px; }
.lp-final h2 { max-width: 880px; font-size: clamp(2.4rem, 4.5vw, 4.5rem); }
.lp-footer { padding-block: 34px; border-top: 1px solid var(--line); background: #0e1114; }
.lp-footer .lp-shell { display: grid; grid-template-columns: 1fr auto auto; align-items: center; gap: 24px; }
.lp-footer p { margin: 0; color: var(--text-dim); font-size: 11px; }
.lp-footer-links { display: flex; gap: 18px; }
.lp-copyright { grid-column: 1 / -1; padding-top: 20px; border-top: 1px solid #252c34; }

@media (max-width: 960px) {
  .lp-hero { grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr); gap: 24px; }
  .lp-hero-visual img { width: min(100%, 400px); }
  .lp-sst-narrative { width: min(55%, 520px); }
  .lp-section-intro, .lp-method-grid { grid-template-columns: 1fr; }
  .lp-section-intro { gap: 24px; }
  .lp-capabilities article { grid-template-columns: 130px 1fr; }
  .lp-capabilities article p { grid-column: 2; }
  .lp-pricing { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .lp-plan:nth-child(even) { border-right: 0; }
  .lp-plan:not(:last-child) { border-bottom: 1px solid var(--line); }
}

@media (max-width: 680px) {
  .lp-shell, .lp-nav { width: min(100% - 28px, 1180px); }
  .lp-nav { min-height: 64px; gap: 12px; }
  .lp-brand img { width: 32px; height: 32px; }
  .lp-brand { font-size: 17px; }
  .lp-nav-links { display: none; }
  .lp-nav-login { margin-left: auto; }
  .lp-sst-story::before { background-size: 32px 32px, 32px 32px, auto, auto; background-position: 0 0, 0 0, 76% 22%, 50% 76%; }
  .lp-hero { min-height: auto; grid-template-columns: 1fr; align-items: start; padding-block: 56px 72px; }
  .lp-hero-copy { width: 100%; }
  .lp-hero-visual { order: 2; margin-top: 34px; }
  .lp-hero-visual img { width: min(64vw, 330px); filter: drop-shadow(0 24px 24px rgba(0,0,0,.34)); }
  .lp-hero-halo { width: min(56vw, 290px); }
  .lp-hero h1 { max-width: 9ch; font-size: clamp(3rem, 16vw, 4.6rem); }
  .lp-lead { max-width: 31rem; padding-right: 12%; }
  .lp-actions { max-width: 320px; }
  .lp-proof { max-width: 82%; }
  .lp-sst-continuation { min-height: 880px; align-items: flex-end; padding-block: 100px 110px; }
  .lp-sst-narrative { width: 100%; }
  .lp-sst-narrative h2 { max-width: 9ch; font-size: clamp(2.8rem, 13.5vw, 4rem); }
  .lp-sst-phases { max-width: 88%; margin-top: 42px; }
  .lp-sst-phases li { grid-template-columns: 38px 1fr; gap: 12px; }
  .lp-sst-phases p { font-size: 13px; text-shadow: 0 1px 8px #121519; }
  .lp-context .lp-shell { justify-content: flex-start; }
  .lp-section { padding-block: 88px; }
  .lp-section-intro { margin-bottom: 44px; }
  .lp-capabilities article { grid-template-columns: 1fr; gap: 12px; }
  .lp-capabilities article p { grid-column: 1; }
  .lp-method { padding-block: 84px; }
  .lp-method-grid { gap: 54px; }
  .lp-pricing { grid-template-columns: 1fr; }
  .lp-plan, .lp-plan:nth-child(2) { border-right: 0; border-bottom: 1px solid var(--line); }
  .lp-plan:last-child { border-bottom: 0; }
  .lp-final { grid-template-columns: 1fr; align-items: start; }
  .lp-final .btn { width: fit-content; }
  .lp-footer .lp-shell { grid-template-columns: 1fr; }
  .lp-footer-links { flex-wrap: wrap; }
  .lp-copyright { grid-column: 1; }
}

@media (prefers-reduced-motion: reduce) {
  :root { scroll-behavior: auto; }
}