/* css/layout.css */

/* Variables para colores y fuentes */
:root {
  --color-accent: #ffcc00;
  --color-bg-header: #ffffff; /* ← blanco permanente */
  --color-bg-header-scrolled: #ffffff;
  --color-text: #000000; /* ← texto negro permanente */
  --color-text-light: #666666;
  --font-main: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}
/* Reset y base */
* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--font-main);
  background: #fff;
  color: var(--color-primary);
}

/* HEADER */

header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: var(--color-bg-header);
  color: var(--color-text);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 30px;
  box-shadow: 0 4px 12px rgb(0 0 0 / 0.1);
  transition: background-color 0.3s ease, top 0.3s ease;
  z-index: 1000;
  backdrop-filter: saturate(180%) blur(10px);
  -webkit-backdrop-filter: saturate(180%) blur(10px);
}

header.scrolled {
  background: var(--color-bg-header-scrolled);
  box-shadow: 0 6px 18px rgb(0 0 0 / 0.2);
}

/* Logo */

header .logo img {
  height: 42px;
  user-select: none;
  filter: drop-shadow(0 0 1px rgba(0,0,0,0.2));
  transition: filter 0.3s ease;
}

header.scrolled .logo img {
  filter: none;
}

/* Desktop menu */

nav.desktop-menu {
  display: flex;
  gap: 32px;
  font-weight: 600;
  font-size: 0.875rem; /* 14px ajustado */
  user-select: none;
}

nav.desktop-menu a {
  color: var(--color-text);
  text-decoration: none;
  position: relative;
  padding: 4px 0;
  transition: color 0.3s ease;
}

nav.desktop-menu a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 0;
  height: 3px;
  background: var(--color-accent);
  border-radius: 2px;
  transition: width 0.3s ease;
}

nav.desktop-menu a:hover,
nav.desktop-menu a:focus {
  color: var(--color-accent);
}

nav.desktop-menu a:hover::after,
nav.desktop-menu a:focus::after {
  width: 100%;
}

/* Menu Toggle (hamburguesa) */

.menu-toggle {
  display: none;
  width: 28px;
  height: 22px;
  position: relative;
  cursor: pointer;
  user-select: none;
  z-index: 1100;
  transition: transform 0.3s ease;
}

.menu-toggle span,
.menu-toggle span::before,
.menu-toggle span::after {
  display: block;
  background: var(--color-text);
  position: absolute;
  height: 3px;
  width: 100%;
  border-radius: 2px;
  transition: all 0.3s ease;
}

.menu-toggle span {
  top: 50%;
  margin-top: -1.5px;
}

.menu-toggle span::before {
  content: '';
  top: -8px;
}

.menu-toggle span::after {
  content: '';
  top: 8px;
}

/* Cuando el menú está activo (cerrar X) */

.menu-toggle.active span {
  background: transparent;
}

.menu-toggle.active span::before {
  transform: rotate(45deg);
  top: 0;
}

.menu-toggle.active span::after {
  transform: rotate(-45deg);
  top: 0;
}

/* Menú móvil */

.mobile-menu {
  position: fixed;
  top: 62px;
  right: 0;
  width: 220px;
  height: calc(100vh - 62px);
  background: var(--color-bg-header-scrolled);
  box-shadow: -6px 0 20px rgba(0,0,0,0.3);
  display: flex;
  flex-direction: column;
  padding: 30px 20px;
  gap: 24px;
  transform: translateX(100%);
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 1099;
  user-select: none;
  border-left: 2px solid var(--color-accent);
}

.mobile-menu.active {
  transform: translateX(0);
}

.mobile-menu a {
  color: var(--color-text);
  font-weight: 600;
  font-size: 0.875rem; /* 14px ajustado */
  text-decoration: none;
  padding-bottom: 6px;
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s ease;
}

.mobile-menu a:hover,
.mobile-menu a:focus {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

/* FOOTER */

footer {
  background: var(--color-bg-header-scrolled);
  color: var(--color-text-light);
  padding: 35px 30px;
  text-align: center;
  font-weight: 500;
  font-size: 0.8rem; /* 13px ajustado */
  user-select: none;
  box-shadow: inset 0 1px 0 rgba(255 255 255 / 0.15);
  display: flex;
  flex-direction: column;
  gap: 16px;
}

footer .logo img {
  height: 36px;
  margin: 0 auto;
  filter: drop-shadow(0 0 1px rgba(0,0,0,0.3));
}

footer nav {
  display: flex;
  justify-content: center;
  gap: 28px;
  flex-wrap: wrap;
}

footer nav a {
  color: var(--color-text-light);
  font-weight: 600;
  font-size: 0.8rem; /* 13px ajustado */
  text-decoration: none;
  transition: color 0.3s ease;
}

footer nav a:hover,
footer nav a:focus {
  color: var(--color-accent);
}

/* Responsive */

@media (max-width: 768px) {
  nav.desktop-menu {
    display: none;
  }
  .menu-toggle {
    display: block;
  }
  footer {
    padding: 25px 20px;
  }
  footer nav {
    gap: 20px;
  }
}