/* ============================================================
   ACADEMIA AVA — Design tokens & base
   ============================================================ */

:root{
  /* --- Color: marca --- */
  --bg:            #16171B;
  --bg-raised:     #1D1E23;
  --bg-raised-2:   #24252B;
  --line:          #2E3038;
  --line-soft:     #24252B;

  --text:          #F4F5F3;
  --text-muted:    #9A9CA6;
  --text-faint:    #82858E;

  --green:         #12E086;
  --green-ink:     #06341F; /* texto sobre verde */

  /* --- Acentos de categoría: un set fijo de 3 que rota, no uno nuevo por cada Máster que se sume --- */
  --accent-1:      #4D8AFF;   /* azulado */
  --accent-2:      #9B8CFF;   /* violáceo */
  --accent-3:      #E0A458;   /* naranja */

  --white:         #FFFFFF;

  /* --- Tipografía --- */
  --font-display: 'Syne', sans-serif;
  --font-body:    'Manrope', sans-serif;

  /* --- Layout --- */
  --maxw: 1180px;
  --pad: clamp(20px, 5vw, 64px);
  --radius-s: 6px;
  --radius-m: 10px;

  /* --- Movimiento --- */
  --ease: cubic-bezier(.16,.84,.44,1);
  --fast: 220ms;
  --slow: 700ms;
}

@media (prefers-reduced-motion: reduce){
  *{ animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
}

*, *::before, *::after{ box-sizing: border-box; }

html{
  scroll-behavior: smooth;
  scroll-padding-top: 96px; /* los anclas (#lista-de-espera) no quedan tapadas por el menú fijo */
  -webkit-text-size-adjust: 100%;
}

body{
  margin:0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img{ max-width:100%; height:auto; display:block; }
[hidden]{ display:none !important; }
a{ color: inherit; text-decoration: none; }
button{ font-family: inherit; }

::selection{ background: var(--green); color: var(--green-ink); }

:focus-visible{
  outline: 2px solid var(--green);
  outline-offset: 3px;
  border-radius: 2px;
}

h1,h2,h3,h4{
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.005em;
  line-height: 1.15;
  margin: 0;
}

p{ margin: 0; }

.container{
  max-width: var(--maxw);
  margin: 0 auto;
  padding-left: var(--pad);
  padding-right: var(--pad);
}

/* --- Tipografía de escala --- */
.h-display{
  font-size: clamp(2.1rem, 4.4vw, 3.6rem);
  font-weight: 700;
  line-height: 1.18;
}
.h-xl{
  font-size: clamp(1.7rem, 3.1vw, 2.5rem);
  font-weight: 700;
  line-height: 1.2;
}
.h-lg{
  font-size: clamp(1.4rem, 2.3vw, 1.9rem);
  font-weight: 700;
  line-height: 1.25;
}
.h-md{
  font-size: clamp(1.1rem, 1.5vw, 1.3rem);
  font-weight: 700;
  line-height: 1.3;
}
.body-lg{
  font-size: clamp(1.05rem, 1.4vw, 1.25rem);
  color: var(--text-muted);
  line-height: 1.65;
}
.body-md{
  font-size: 1rem;
  color: var(--text-muted);
}
.mono-tag{
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-faint);
}

/* --- Botones --- */
.btn{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 26px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.95rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform var(--fast) var(--ease), background var(--fast) var(--ease), border-color var(--fast) var(--ease), color var(--fast) var(--ease);
  white-space: nowrap;
}
.btn:active{ transform: scale(0.97); }
/* Los textos de los botones se editan desde Núcleo: si uno largo no entra
   en pantallas chicas, baja de renglón en vez de cortarse. */
@media (max-width: 560px){
  .btn{ white-space: normal; text-align: center; max-width: 100%; }
}

.btn-solid{
  background: var(--green);
  color: var(--green-ink);
}
.btn-solid:hover{ background: var(--white); }

.btn-outline{
  background: transparent;
  border-color: var(--line);
  color: var(--text);
}
.btn-outline:hover{ border-color: var(--green); color: var(--green); }

.btn-ghost{
  background: transparent;
  color: var(--text-muted);
  padding: 10px 4px;
}
.btn-ghost:hover{ color: var(--text); }

.btn-sm{ padding: 10px 20px; font-size: 0.85rem; }

.btn[aria-disabled="true"]{ cursor: default; }

/* --- Secciones --- */
section{ position: relative; }
.section{ padding: clamp(64px, 10vw, 128px) 0; }
.section-tight{ padding: clamp(40px, 6vw, 72px) 0; }
.section-border-t{ border-top: 1px solid var(--line-soft); }

/* --- Utilidades --- */
.stack-sm > * + *{ margin-top: 16px; }
.stack-md > * + *{ margin-top: 28px; }
.stack-lg > * + *{ margin-top: 48px; }

/* Solo se oculta para animar si hay JavaScript: sin JS, el contenido se ve igual. */
@media (scripting: enabled){
  .reveal{
    opacity: 0;
    transform: translateY(28px);
    transition: opacity var(--slow) var(--ease), transform var(--slow) var(--ease);
  }
  .reveal.is-visible{
    opacity: 1;
    transform: translateY(0);
  }
}

.visually-hidden{
  position:absolute; width:1px; height:1px; padding:0; margin:-1px;
  overflow:hidden; clip:rect(0,0,0,0); white-space:nowrap; border:0;
}

.skip-link{
  position:absolute; left:12px; top:-60px;
  background: var(--green); color: var(--green-ink);
  padding: 10px 16px; border-radius: 8px; font-weight:700; z-index: 999;
  transition: top var(--fast) var(--ease);
}
.skip-link:focus{ top: 12px; }