/* Listas y enlaces */
ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

a {
  text-decoration: none;
  color: inherit;
}

/* ===== Tokens (ajusta si ya tienes design system global) ===== */
:root {
  --brand-2: #224335;
  --ink: #0b1b16;
  --fg-on-brand: #000;

  --glass-top: rgba(11, 27, 22, 0.78);
  --glass-bot: rgba(0, 85, 72, 0.98);

  --shadow-1: 0 10px 24px rgba(0, 0, 0, .16);
  --radius-pill: 999px;
  --radius-md: 12px;

  --header-pad-x: clamp(1rem, 3vw, 2.5rem);
}

/* ===== Enlace de salto (accesibilidad) ===== */
.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  width: 100vw;
  color: transparent;
  padding: .55rem .9rem;
  border-radius: .6rem;
  z-index: 10002;
  font-size: .9rem;
  font-weight: 500;
}

.skip-link:focus {
  left: .75rem;
  top: .75rem;
}

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10001;
  width: 100vw;
  padding: 1rem var(--header-pad-x);
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-sizing: border-box;

  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: var(--shadow-1);
}

/* Marca */
.brand_menu {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
}

.brand-text {
  margin: 0;
  letter-spacing: .4px;
  color: var(--fg-on-brand);
  font-weight: 700;
  font-size: clamp(1.35rem, 1vw + 1.4rem, 2.1rem);
}

.brand-logo {
  width: 40px;
  height: 40px;
  object-fit: contain;
  display: block;
}

/* ===== Burger ===== */
.burger {
  width: 40px;
  height: 32px;
  display: inline-block;
  position: relative;
  cursor: pointer;
  border-radius: 10px;
  z-index: 10003;
}

/* 3 líneas del burger */
.burger::before,
.burger::after {
  content: "";
  position: absolute;
  left: 6px;
  right: 6px;
  height: 2.5px;
  border-radius: 999px;
  background: #000;
  transition:
    transform .25s ease,
    top .25s ease,
    opacity .25s ease,
    background-color .25s ease;
}

.burger::before {
  top: 10px;
}

.burger::after {
  top: 20px;
}

/* Línea central */
.burger {
  background:
    linear-gradient(#000 0 0)
    center 50% / calc(100% - 12px) 2.5px
    no-repeat;
  transition: background .25s ease, box-shadow .25s ease, transform .15s ease;
}

.burger:hover {
  box-shadow: 0 0 0 1px rgba(0, 0, 0, .4);
  transform: translateY(-1px);
}

/* ===== Scrim (oscurece fondo y permite cerrar) ===== */
.scrim {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, .45);
  opacity: 0;
  pointer-events: none;
  transition: opacity .25s ease;
  z-index: 10000;
}

/* ===== Navegación móvil: panel deslizante ===== */
.nav {
  position: fixed;
  inset: 0 0 0 auto;
  width: min(82vw, 320px);
  height: 100vh;
  transform: translateX(100%);
  transition: transform .3s ease;
  background: linear-gradient(
    to bottom,
    rgba(236, 252, 244, 0.97) 0%,
    rgba(0, 85, 72, 0.97) 100%
  );
  padding: 4.5rem 1.4rem 2.2rem;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: flex-start;
  box-shadow: var(--shadow-1);
  z-index: 10001;
}

/* Botón cerrar dentro del panel */
.close-nav {
  position: absolute;
  top: .8rem;
  right: .9rem;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 1.6rem;
  line-height: 1;
  color: var(--fg-on-brand);
  cursor: pointer;
  background: rgba(0, 0, 0, .26);
  transition: background .2s ease, transform .2s ease;
}

.close-nav:hover {
  background: rgba(0, 0, 0, .35);
  transform: scale(1.03);
}

/* Lista navegación */
.nav-list {
  display: flex;
  flex-direction: column;
  gap: .4rem;
  width: 100%;
  margin-top: .5rem;
}

.nav-list a {
  display: block;
  padding: .9rem 1rem;
  color: #083126;
  border-radius: 10px;
  font-size: .98rem;
  font-weight: 500;
  letter-spacing: .2px;
  transition:
    background .18s ease,
    color .18s ease,
    transform .18s ease;
}

.nav-list a:hover {
  background: rgba(0, 0, 0, .95);
  color: #fffbcc;
  transform: translateX(2px);
}

.nav-list .cta {
  background: #2f4560;
  color: #000;
  font-weight: 600;
}

.nav-list .cta:hover {
  background: #23354a;
}

/* ===== Estados abiertos (checkbox hack) ===== */
.nav-toggle:checked ~ .nav {
  transform: translateX(0);
}

.nav-toggle:checked ~ .scrim {
  opacity: 1;
  pointer-events: auto;
}

/* Burger -> X */
.nav-toggle:checked + .burger {
  background: none;
}

.nav-toggle:checked + .burger::before {
  top: 50%;
  transform: translateY(-50%) rotate(45deg);
  background-color: #111827;
}

.nav-toggle:checked + .burger::after {
  top: 50%;
  transform: translateY(-50%) rotate(-45deg);
  background-color: #111827;
}

/* Bloquear scroll cuando menú está abierto (soporte moderno) */
body:has(#nav-toggle:checked) {
  overflow: hidden;
}

/* ===== Focus visible ===== */
.burger:focus-visible,
.close-nav:focus-visible,
.nav-list a:focus-visible,
.brand_menu:focus-visible {
  outline: 2px solid #ffdf40;
  outline-offset: 3px;
  border-radius: 8px;
}

/* ===== Menos animación si el usuario lo prefiere ===== */
@media (prefers-reduced-motion: reduce) {
  .burger::before,
  .burger::after,
  .nav,
  .scrim {
    transition: none;
  }
}

/* ===== Tablet y Desktop ===== */
@media (min-width: 900px) {
  .site-header {
    padding-block: .9rem;
  }

  .burger,
  .scrim,
  .close-nav {
    display: none;
  }

  .nav {
    position: static;
    transform: none;
    background: transparent;
    padding: 0;
    width: auto;
    height: auto;
    box-shadow: none;
  }

  .nav-list {
    flex-direction: row;
    align-items: center;
    gap: 1.2rem;
    margin-top: 0;
  }

  .nav-list a {
    color: var(--fg-on-brand);
    padding: .45rem .75rem;
    border-radius: var(--radius-pill);
    font-size: .98rem;
  }

  .nav-list a:hover {
    background: rgba(255, 255, 255, 1);
    color: #000;
    transform: none;
  }

  .nav-list .cta {
    background: rgba(255, 255, 255, 0.1);
    color: #fdfdfd;
    font-weight: 600;
  }

  .nav-list .cta:hover {
    background: rgba(255, 255, 255, 0.2);
  }
}