/* ════════════════════════════════════════════════════════════
   kensho.css · TIGRE NINJA
   Landing del proyecto Kenshō (Tigre Ninja Dojo · learning-planner).
   Depende de base.css + main.css y de scripts/main.js.
   Prefijo .ks- para no colisionar con nada del sitio.

   Firma de la página: LA ESCALERA DE REFUERZOS.
   El producto se juega su credibilidad en una decisión concreta —
   los repasos a 1, 7, 21 y 45 días, y la regla de que un refuerzo
   vencido manda sobre abrir temario nuevo. Eso no se explica con
   un párrafo: se dibuja. La escalera es una regla temporal real
   donde cada intervalo se enciende en secuencia al entrar en
   pantalla, y el eje se mide en días, no en decoración.

   Tipografía: las mismas tres familias que usa la app real
   (Cinzel · Jost · Space Mono). No se introduce ninguna cuarta:
   la página habla el idioma del producto que presenta.
   ════════════════════════════════════════════════════════════ */

:root{
  --ks-red:#B32D2B;        /* tinta bermellón del sello 学 */
  --ks-red-soft:#D0524A;
  --ks-alta:#4E7A4A;       /* evidencia alta   */
  --ks-media:#B0872F;      /* evidencia media  */
  --ks-baja:#7A7268;       /* evidencia baja   */
  --ks-paper:#F5F2EC;      /* washi de la interfaz real */
  --ks-paper-line:#E0DBD1;
  --ks-paper-ink:#22201D;
  --ks-paper-dim:#7C766C;
}

/* ── Contenedores ── */
.ks-wrap{max-width:1120px;margin:0 auto;padding:0 1.6rem;position:relative;z-index:1}
.ks-sec{padding:4.5rem 0}
.ks-sec + .ks-sec{border-top:1px solid var(--border)}

/* ════ HERO ════ */
.ks-hero{position:relative;padding:8rem 1.6rem 0;overflow:hidden}
.ks-hero-inner{max-width:1120px;margin:0 auto;text-align:center;position:relative;z-index:2}
.ks-crumb{font-family:var(--fm);font-size:.62rem;letter-spacing:.22em;text-transform:uppercase;color:var(--pdim);margin-bottom:1.4rem}
.ks-crumb a{color:var(--cyan);transition:color .2s}
.ks-crumb a:hover{color:var(--gold)}

.ks-codename{display:inline-flex;align-items:center;gap:.6rem;font-family:var(--fm);font-size:.6rem;letter-spacing:.28em;text-transform:uppercase;color:var(--ks-red-soft);border:1px solid rgba(179,45,43,.45);background:rgba(179,45,43,.09);padding:.35rem .9rem;border-radius:20px;margin-bottom:1.3rem}

.ks-title{font-family:var(--fd);font-weight:900;font-size:clamp(2.6rem,9vw,5.4rem);letter-spacing:.06em;line-height:1;text-transform:uppercase;color:var(--parchment)}
.ks-title .macron{color:var(--ks-red-soft)}
.ks-sub{font-family:var(--fm);font-size:clamp(.6rem,1.6vw,.76rem);letter-spacing:.34em;text-transform:uppercase;color:var(--pdim);margin-top:1rem}
.ks-lead{font-family:var(--fb);font-weight:300;font-size:clamp(1.05rem,2.3vw,1.35rem);line-height:1.56;color:rgba(237,230,214,.78);max-width:640px;margin:1.6rem auto 0}
.ks-lead b{color:var(--parchment);font-weight:500}

.ks-chips{display:flex;gap:.5rem;justify-content:center;flex-wrap:wrap;margin-top:1.5rem}
.ks-chip{font-family:var(--fm);font-size:.57rem;letter-spacing:.16em;text-transform:uppercase;padding:.32rem .8rem;border-radius:20px;border:1px solid var(--border);color:var(--pdim)}
.ks-chip.red{color:var(--ks-red-soft);border-color:rgba(179,45,43,.42);background:rgba(179,45,43,.1)}
.ks-chip.plain{color:var(--parchment);border-color:rgba(237,230,214,.22);background:rgba(237,230,214,.05)}

.ks-cta-row{display:flex;flex-wrap:wrap;gap:.9rem;justify-content:center;margin-top:2.2rem}
.ks-btn{display:inline-flex;align-items:center;gap:.7rem;font-family:var(--fm);font-size:.74rem;letter-spacing:.2em;text-transform:uppercase;padding:.95rem 2rem;border-radius:6px;border:1px solid var(--gold);color:var(--gold);background:transparent;transition:background .2s,color .2s,transform .2s,box-shadow .25s}
.ks-btn:hover{background:var(--gold);color:var(--ink);transform:translateY(-2px)}
.ks-btn.solid{background:var(--ks-red);border-color:var(--ks-red);color:#fff;box-shadow:0 0 34px rgba(179,45,43,.3)}
.ks-btn.solid:hover{background:var(--ks-red-soft);border-color:var(--ks-red-soft);color:#fff;box-shadow:0 0 52px rgba(179,45,43,.42)}
.ks-btn.ghost{border-color:var(--border-g);color:var(--pdim)}
.ks-btn.ghost:hover{background:transparent;border-color:var(--cyan);color:var(--cyan)}
.ks-btn svg{width:16px;height:16px;fill:currentColor;flex:none}

/* Lámina comercial: se presenta como una lámina apoyada, no a sangre */
.ks-plate{position:relative;z-index:2;max-width:1060px;margin:3.2rem auto -4rem;padding:0 1rem}
.ks-plate img{display:block;width:100%;height:auto;border-radius:12px;border:1px solid rgba(237,230,214,.1);box-shadow:0 40px 110px rgba(0,0,0,.7)}

/* ════ TÍTULOS DE SECCIÓN ════ */
.ks-tag{font-family:var(--fm);font-size:.62rem;letter-spacing:.3em;text-transform:uppercase;color:var(--cyan);display:flex;align-items:center;gap:.7rem;margin-bottom:1rem}
.ks-tag::before{content:'';width:28px;height:1px;background:var(--cyan)}
.ks-h2{font-family:var(--fd);font-weight:700;font-size:clamp(1.5rem,3.6vw,2.3rem);letter-spacing:.03em;margin-bottom:1.2rem;color:var(--parchment)}
.ks-p{font-family:var(--fb);font-weight:300;font-size:1.02rem;line-height:1.7;color:rgba(237,230,214,.72);max-width:70ch;margin-bottom:1.1rem}
.ks-p b{color:var(--parchment);font-weight:500}
.ks-p code,.ks-li code{font-family:var(--fm);font-size:.9em;color:var(--ks-red-soft);background:rgba(179,45,43,.1);border:1px solid var(--border);border-radius:4px;padding:.05em .35em}

/* ════ FIRMA · LA ESCALERA DE REFUERZOS ════ */
.ks-ladder{margin:2.6rem 0 1rem;padding:2.4rem 2rem 2rem;background:var(--ink2);border:1px solid var(--border);border-radius:14px;position:relative;overflow:hidden}
.ks-ladder-head{display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;gap:.6rem;margin-bottom:2.4rem}
.ks-ladder-head h3{font-family:var(--fd);font-weight:700;font-size:1.05rem;letter-spacing:.03em;color:var(--parchment)}
.ks-ladder-head span{font-family:var(--fm);font-size:.58rem;letter-spacing:.16em;text-transform:uppercase;color:var(--pdim)}

/* Eje temporal real: las posiciones son proporcionales a √día,
   para que 45 no aplaste a 1 y el eje siga siendo legible. */
.ks-axis{position:relative;height:132px;margin:0 .4rem}
.ks-axis-line{position:absolute;left:0;right:0;top:96px;height:1px;background:var(--border-g)}
.ks-mark{position:absolute;bottom:0;transform:translateX(-50%);display:flex;flex-direction:column;align-items:center;gap:.55rem;width:76px}
.ks-mark-bar{width:3px;border-radius:2px;background:var(--ks-red);transform-origin:bottom;transform:scaleY(0);transition:transform .55s cubic-bezier(.23,1,.32,1)}
.ks-mark.on .ks-mark-bar{transform:scaleY(1)}
.ks-mark-dot{width:11px;height:11px;border-radius:50%;background:var(--ink2);border:2px solid var(--ks-red);opacity:0;transform:scale(.4);transition:opacity .35s,transform .35s cubic-bezier(.34,1.56,.64,1)}
.ks-mark.on .ks-mark-dot{opacity:1;transform:scale(1)}
.ks-mark-day{font-family:var(--fm);font-size:.78rem;letter-spacing:.04em;color:var(--parchment);opacity:0;transition:opacity .4s}
.ks-mark.on .ks-mark-day{opacity:1}
.ks-mark-lbl{font-family:var(--fm);font-size:.5rem;letter-spacing:.14em;text-transform:uppercase;color:var(--pdim);opacity:0;transition:opacity .4s;text-align:center;line-height:1.5}
.ks-mark.on .ks-mark-lbl{opacity:1}
.ks-mark.origin .ks-mark-bar,.ks-mark.origin .ks-mark-dot{background:var(--parchment);border-color:var(--parchment)}
.ks-mark.origin .ks-mark-dot{background:var(--parchment)}

.ks-ladder-note{margin-top:2rem;padding-top:1.3rem;border-top:1px dashed var(--border-g);font-family:var(--fb);font-weight:300;font-size:.92rem;line-height:1.7;color:var(--pdim)}
.ks-ladder-note b{color:var(--ks-red-soft);font-weight:500}

/* ════ LOS TRES TIPOS DE DÍA ════ */
.ks-days{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:1rem;margin-top:1.8rem}
.ks-day{padding:1.4rem 1.4rem 1.5rem;border:1px solid var(--border);border-radius:12px;background:var(--ink2)}
.ks-day-key{display:flex;align-items:center;gap:.55rem;font-family:var(--fm);font-size:.58rem;letter-spacing:.18em;text-transform:uppercase;margin-bottom:.7rem}
.ks-day-key i{width:10px;height:10px;border-radius:3px;flex:none}
.ks-day.lectivo .ks-day-key{color:var(--parchment)}
.ks-day.libre .ks-day-key{color:var(--ks-media)}
.ks-day.rojo .ks-day-key{color:var(--ks-red-soft)}
.ks-day p{font-family:var(--fb);font-weight:300;font-size:.9rem;line-height:1.65;color:var(--pdim)}

/* ════ CAPTURA REAL ════ */
.ks-shot{margin-top:1.8rem;border-radius:12px;overflow:hidden;border:1px solid var(--border);background:var(--ink2)}
.ks-shot img{display:block;width:100%;height:auto}
.ks-shot figcaption{padding:1rem 1.3rem;border-top:1px solid var(--border);font-family:var(--fb);font-weight:300;font-size:.88rem;line-height:1.6;color:var(--pdim)}
.ks-shot figcaption b{font-family:var(--fm);font-size:.56rem;letter-spacing:.16em;text-transform:uppercase;color:var(--parchment);display:block;margin-bottom:.35rem}

/* ════ TABLERO DE MÓDULOS ════ */
.ks-board{display:grid;grid-template-columns:repeat(auto-fill,minmax(178px,1fr));gap:.8rem;margin-top:1.8rem}
.ks-mod{position:relative;padding:1.1rem 1.1rem 1.15rem;border:1px solid var(--border);border-radius:10px;background:var(--ink2);overflow:hidden;transition:border-color .3s,transform .3s var(--ease)}
.ks-mod:hover{transform:translateY(-3px);border-color:var(--border-g)}
.ks-mod::before{content:attr(data-kj);position:absolute;right:-.2rem;bottom:-1.1rem;font-family:var(--fj);font-weight:700;font-size:3.6rem;line-height:1;color:rgba(237,230,214,.045);pointer-events:none}
.ks-mod-name{position:relative;z-index:2;font-family:var(--fd);font-weight:700;font-size:.95rem;color:var(--parchment);margin-bottom:.45rem}
.ks-mod-state{position:relative;z-index:2;font-family:var(--fm);font-size:.5rem;letter-spacing:.16em;text-transform:uppercase;padding:.22rem .55rem;border-radius:20px;border:1px solid var(--border);color:var(--pdim);display:inline-block}
.ks-mod-state.estable{color:var(--ks-alta);border-color:rgba(78,122,74,.5);background:rgba(78,122,74,.1)}
.ks-mod-state.beta{color:var(--ks-media);border-color:rgba(176,135,47,.5);background:rgba(176,135,47,.1)}
.ks-mod-state.reserva{color:var(--pdim);border-color:var(--border);background:rgba(237,230,214,.03)}
.ks-mod.res{opacity:.6}

/* ════ REGLAS DEL CONTRATO ════ */
.ks-rules{list-style:none;margin:1.6rem 0 0;padding:0;display:grid;gap:.7rem;counter-reset:ksr}
.ks-li{counter-increment:ksr;display:flex;gap:1rem;align-items:flex-start;padding:1.1rem 1.3rem;background:var(--ink2);border:1px solid var(--border);border-left:2px solid var(--ks-red);border-radius:0 10px 10px 0}
.ks-li::before{content:counter(ksr,decimal-leading-zero);font-family:var(--fm);font-size:.66rem;color:var(--ks-red-soft);flex:none;padding-top:.15rem;letter-spacing:.08em}
.ks-li span{font-family:var(--fb);font-weight:300;font-size:.94rem;line-height:1.65;color:rgba(237,230,214,.72)}
.ks-li b{color:var(--parchment);font-weight:500}

/* ════ EVIDENCIA ════ */
.ks-ev{display:flex;flex-wrap:wrap;gap:.5rem;margin:1.4rem 0}
.ks-ev-pill{font-family:var(--fm);font-size:.56rem;letter-spacing:.13em;text-transform:uppercase;padding:.34rem .8rem;border-radius:20px}
.ks-ev-pill.alta{color:var(--ks-alta);border:1px solid rgba(78,122,74,.5);background:rgba(78,122,74,.1)}
.ks-ev-pill.media{color:var(--ks-media);border:1px solid rgba(176,135,47,.5);background:rgba(176,135,47,.1)}
.ks-ev-pill.baja{color:var(--ks-baja);border:1px solid rgba(122,114,104,.45);background:rgba(122,114,104,.09)}

/* ════ AVISO DE ESTADO ════ */
.ks-note{margin:2rem 0 0;padding:1.6rem 1.8rem;border:1px dashed var(--ks-red);border-radius:10px;background:rgba(179,45,43,.06)}
.ks-note h3{font-family:var(--fd);font-weight:700;font-size:1.05rem;color:var(--parchment);margin-bottom:.7rem;display:flex;align-items:center;gap:.55rem}
.ks-note h3 .kj{font-family:var(--fj);color:var(--ks-red-soft)}
.ks-note p{font-family:var(--fb);font-weight:300;font-size:.95rem;line-height:1.7;color:rgba(237,230,214,.72);max-width:72ch}
.ks-note b{color:var(--parchment);font-weight:500}

/* ════ FICHA ════ */
.ks-specs{width:100%;border-collapse:collapse;margin-top:1.4rem;font-size:.88rem}
.ks-specs th{font-family:var(--fm);font-size:.56rem;letter-spacing:.2em;text-transform:uppercase;color:var(--pdim);text-align:left;padding:.7rem .8rem;border-bottom:1px solid var(--border-g)}
.ks-specs td{font-family:var(--fb);font-weight:300;color:rgba(237,230,214,.72);padding:.7rem .8rem;border-bottom:1px solid var(--border)}
.ks-specs td:first-child{font-family:var(--fm);color:var(--ks-red-soft);white-space:nowrap}

/* ════ CIERRE ════ */
.ks-final{text-align:center;padding:5rem 1.6rem 6rem;position:relative;overflow:hidden}
.ks-final .kj-watermark{font-size:clamp(180px,26vw,340px);top:50%;left:50%;transform:translate(-50%,-50%);color:rgba(179,45,43,.045)}
.ks-final h2{position:relative;z-index:2;font-family:var(--fd);font-weight:700;font-size:clamp(1.5rem,4vw,2.3rem);margin-bottom:.6rem;color:var(--parchment)}
.ks-final .motto{position:relative;z-index:2;font-family:var(--fd);font-weight:700;font-size:clamp(1.5rem,4vw,2.3rem);color:var(--ks-red-soft);margin-bottom:1.2rem}
.ks-final p{position:relative;z-index:2;font-family:var(--fb);font-weight:300;color:var(--pdim);max-width:520px;margin:0 auto 2rem}
.ks-sig{position:relative;z-index:2;margin-top:2.6rem;font-family:var(--fm);font-size:.58rem;letter-spacing:.28em;color:var(--dim);text-transform:uppercase}

/* ── Accesibilidad / responsive ── */
:where(a,button):focus-visible{outline:2px solid var(--ks-red-soft);outline-offset:3px;border-radius:4px}
@media (max-width:760px){
  .ks-hero{padding-top:7rem}
  .ks-sec{padding:3.2rem 0}
  .ks-plate{margin-bottom:-2rem}
  .ks-btn{width:100%;justify-content:center}
  .ks-axis{height:150px}
  .ks-mark{width:58px}
  .ks-mark-lbl{font-size:.44rem}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
  .ks-mark .ks-mark-bar{transform:scaleY(1)}
  .ks-mark .ks-mark-dot,.ks-mark .ks-mark-day,.ks-mark .ks-mark-lbl{opacity:1;transform:none}
}