/* ===========================================================
   BLACK HIGHLIGHTER — ADAPTED FOR sht.stratix.cl
   ===========================================================
   Extraído y adaptado del theme original Black Highlighter
   (Nu-SCPTheme / NamedNameless).
   
   Incluye:
     - Paleta de colores completa con variables CSS
     - Gradientes (header, topbar, background)
     - Top-bar con animaciones de bordes deslizantes
     - Sidebar responsive con slide-in animation
     - Estilos para los elementos del acortador
   
   CÓMO USAR:
     1. Linkeá este CSS en tu <head>
     2. Agregá la estructura HTML del top-bar y sidebar
        (ver comentarios al final del archivo)
   =========================================================== */

/* ===========================================================
   1. FONTS
   =========================================================== */
@import url("https://namednameless.github.io/Black-Highlighter-reworked/fonts/fonts.css");

/* Fallback: si los fonts de gh-pages no cargan */
@import url("https://fonts.googleapis.com/css2?family=Inter:wght@100..900&display=swap");

/* ===========================================================
   2. CSS CUSTOM PROPERTIES — COLOR PALETTE & GRADIENTS
   =========================================================== */
:root {
  /* === TYPEFACES === */
  --body-font: Inter, Verdana, Geneva, "Helvetica Neue", Arial, sans-serif;
  --ui-font: PTRootUI, -apple-system, system-ui, BlinkMacSystemFont,
    "Segoe UI", Roboto, sans-serif;
  --header-font: Inter, "Franklin Gothic Medium", Arial, sans-serif;
  --title-font: var(--header-font);
  --mono-font: Recursive, Consolas, monaco, monospace;

  /* === BASE FONT SIZES === */
  --min-font-size: 0.8125rem;
  --max-font-size: 0.9375rem;
  --base-font-size: var(--max-font-size);
  --base-line-height: 1.5;

  /* === COLOR MONOCHROMES — graphite / charcoal === */
  --white-monochrome: 245, 242, 242;
  --pale-gray-monochrome: 224, 219, 219;
  --light-pale-gray-monochrome: 183, 174, 174;
  --very-light-gray-monochrome: 116, 108, 108;
  --light-gray-monochrome: 82, 74, 74;
  --gray-monochrome: 48, 43, 45;
  --dark-gray-monochrome: 24, 22, 24;
  --black-monochrome: 10, 10, 11;

  /* === ACCENT COLORS (rojo / hierro) === */
  --pale-accent: 237, 103, 103;
  --bright-accent: 194, 46, 46;
  --medium-accent: 154, 28, 28;
  --dark-accent: 102, 16, 16;
  --alt-accent: 143, 132, 132;
  --danger-accent: 214, 56, 56;

  /* === PRIMARY COLORS === */
  --swatch-primary: var(--bright-accent);
  --swatch-primary-darker: var(--medium-accent);
  --swatch-primary-darkest: var(--dark-accent);
  --swatch-border-color: var(--light-gray-monochrome);

  /* === TEXT COLORS === */
  --swatch-text-dark: var(--black-monochrome);
  --swatch-text-light: var(--white-monochrome);
  --swatch-text-general: var(--pale-gray-monochrome);
  --swatch-important-text: var(--pale-accent);

  /* === MENU BACKGROUND COLORS === */
  --swatch-menubg-color: 24, 22, 24;
  --swatch-menubg-light-color: 33, 30, 32;
  --swatch-menubg-medium-color: 79, 71, 71;
  --swatch-menubg-medium-dark-color: 110, 101, 101;
  --swatch-menubg-dark-color: 12, 11, 12;
  --swatch-menubg-black-color: 5, 5, 6;
  --swatch-menubg-hover-color: var(--bright-accent);

  /* === MENU TEXT COLORS === */
  --swatch-menutxt-dark-color: var(--pale-gray-monochrome);
  --swatch-menutxt-light-color: var(--white-monochrome);
  --swatch-menutxt-general-color: var(--swatch-menutxt-dark-color);

  /* === SECONDARY & TERTIARY === */
  --swatch-secondary-color: var(--swatch-menubg-light-color);
  --swatch-tertiary-color: var(--swatch-menubg-medium-color);
  --swatch-alternate-color: var(--swatch-menubg-black-color);
  --swatch-text-secondary-color: var(--white-monochrome);
  --swatch-text-tertiary-color: var(--pale-gray-monochrome);

  /* === BACKGROUND === */
  --swatch-background: 14, 13, 15;
  --background-gradient-color: 49, 16, 16;

  /* === GRADIENTE DEL HEADER — rojo apagado → grafito === */
  --header-gradient-color-bottom: 64, 16, 16;
  --header-gradient-color-middle: 18, 16, 17;
  --header-gradient-color-top: 9, 9, 10;
  --gradient-header: linear-gradient(
    to top,
    rgb(var(--header-gradient-color-bottom)) 0%,
    rgb(var(--header-gradient-color-middle)) 90%,
    rgb(var(--header-gradient-color-top)) 100%
  );

  /* === DIAGONAL STRIPES === */
  --diagonal-stripes: repeating-linear-gradient(
    45deg,
    hsla(0, 0%, 100%, 0),
    hsla(0, 0%, 100%, 0) 0.25vh,
    rgba(88, 88, 88, 0.1) 0.35vh,
    rgba(88, 88, 88, 0.2) 0.5vh
  );

  /* === GRADIENTE DEL TOPBAR — carbón / rojo === */
  --swatch-topmenu-bg-color: var(--swatch-menubg-color);
  --swatch-topmenu-border-color: var(--swatch-menubg-medium-color);
  --gradient-topmenu: linear-gradient(
    to bottom,
    rgba(255, 255, 255, 0) 0%,
    rgba(255, 255, 255, 0) var(--header-height-on-desktop, 7.5rem),
    rgba(var(--swatch-topmenu-border-color), 1) var(--header-height-on-desktop, 7.5rem),
    rgba(var(--swatch-topmenu-bg-color), 1)
      calc(var(--header-height-on-desktop, 7.5rem) + 0.0625rem),
    rgba(var(--swatch-topmenu-bg-color), 0.95) calc(100% - 0.0625rem),
    rgba(var(--swatch-topmenu-bg-color), 1) calc(100% - 0.0625rem),
    rgba(var(--swatch-topmenu-border-color), 1) 100%
  );
  --gradient-topmenu-mobile: linear-gradient(
    to bottom,
    rgba(var(--swatch-topmenu-border-color), 1) 0,
    rgba(var(--swatch-topmenu-bg-color), 1) 0.0625rem,
    rgba(var(--swatch-topmenu-bg-color), 1)
      calc(var(--topbar-height-on-mobile, 3rem) - 0.0625rem),
    rgba(var(--swatch-topmenu-bg-color), 1)
      calc(var(--topbar-height-on-mobile, 3rem) - 0.0625rem),
    rgba(var(--swatch-topmenu-border-color), 1) var(--topbar-height-on-mobile, 3rem)
  );

  /* === GRADIENTE DE FONDO === */
  --background-gradient-distance: 40rem;
  --gradient-background: linear-gradient(
    to bottom,
    rgba(var(--background-gradient-color), 1) 0,
    rgba(var(--background-gradient-color), 0) var(--background-gradient-distance)
  );

  /* === LINK COLORS — red links, muted alternate === */
  --link-color: var(--bright-accent);
  --visited-link-color: var(--medium-accent);
  --hover-link-color: var(--medium-accent);
  --newpage-color: var(--alt-accent);

  /* === HEADER MEASUREMENTS === */
  --header-height-on-desktop: 8.75rem;
  --header-height-on-mobile: 6.75rem;
  --topbar-height-on-desktop: 4.25rem;
  --topbar-height-on-mobile: 4rem;
  --final-header-height-on-desktop: calc(
    var(--header-height-on-desktop) + var(--topbar-height-on-desktop)
  );

  /* === TOPBAR COLORS — light text on dark bg, red hover === */
  --topmenu-category-color: var(--pale-gray-monochrome);
  --topmenu-category-hover-color: var(--white-monochrome);
  --topmenu-category-hover-bg: 0, 0, 0, 0;
  --topmenu-hover-border-color: var(--bright-accent);

  /* === DROPDOWN COLORS === */
  --dropdown-bg-color: var(--swatch-alternate-color), 0.95;
  --dropdown-border-color: var(--swatch-text-tertiary-color), 0.5;
  --dropdown-links-color: var(--swatch-menutxt-light-color);
  --dropdown-links-bg-color: 0, 0, 0, 0;
  --dropdown-links-hover-color: var(--swatch-menutxt-light-color);
  --dropdown-links-hover-bg-color: var(--swatch-primary);

  /* === SIDEBAR COLORS === */
  --sidebar-bg-color: var(--swatch-menubg-color);
  --sidebar-width-on-mobile: 18rem;
  --sidebar-links-text: var(--swatch-menutxt-general-color);
  --sidebar-links-hover-bg-color: var(--swatch-primary);
  --sidebar-links-hover-text-color: var(--swatch-menutxt-light-color);

  /* === UI BUTTONS === */
  --ui-button-bg: var(--swatch-secondary-color);
  --ui-button-txt: var(--swatch-text-tertiary-color);
  --ui-button-hover-bg: var(--swatch-primary);
  --ui-button-hover-txt: var(--swatch-menutxt-light-color);
  --ui-button-hover-outline: var(--swatch-primary);

  /* === SITE HEADER === */
  --swatch-headerh1-color: var(--white-monochrome);

  /* === SCROLLBAR === */
  --scrollbar-width: 0.5rem;
}

/* ===========================================================
   3. GLOBAL STYLES
   =========================================================== */

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 1em;
  line-height: var(--base-line-height);
  color-scheme: dark;
  scrollbar-width: thin;
  scrollbar-color: rgba(var(--swatch-tertiary-color), 0.6)
                  rgba(var(--swatch-secondary-color), 0.3);
}

body {
  margin: 0;
  padding: 0;
  font-family: var(--body-font);
  font-size: var(--base-font-size);
  line-height: var(--base-line-height);
  color: rgb(var(--swatch-text-general));
  background-color: rgba(var(--swatch-background), 1);
  background-image: var(--gradient-header),
                    var(--gradient-topmenu),
                    var(--gradient-background);
  background-repeat: repeat-x;
  background-size: 100% var(--header-height-on-desktop),
                   100% var(--final-header-height-on-desktop),
                   100% var(--background-gradient-distance);
  min-height: 100vh;
  word-break: normal;
  hyphens: manual;
}

/* Selection */
::selection {
  background: rgba(var(--swatch-primary), 0.25);
  text-shadow: none;
}

/* Scrollbar Webkit */
::-webkit-scrollbar {
  width: var(--scrollbar-width);
  height: var(--scrollbar-width);
  border: solid 0.0625rem rgba(var(--swatch-menubg-black-color), 0.1);
  border-radius: 0.031rem;
}
::-webkit-scrollbar-track {
  background: rgba(var(--swatch-menubg-black-color), 0.1);
}
::-webkit-scrollbar-thumb {
  background: rgba(var(--swatch-tertiary-color), 0.4);
}

/* Links globales */
a {
  transition: text-decoration-color 150ms cubic-bezier(0.4, 0, 0.2, 1),
              color 150ms cubic-bezier(0.4, 0, 0.2, 1);
  color: rgb(var(--link-color));
  text-decoration: underline 0.09375em;
  text-decoration-color: transparent;
}
a:visited {
  color: rgb(var(--visited-link-color));
}
a:hover, a:active {
  color: rgb(var(--hover-link-color));
  text-decoration-color: currentColor;
}

/* ===========================================================
   4. DIAGONAL STRIPES OVERLAY (legacy global band disabled)
   =========================================================== */
.diagonal-stripes {
  display: none;
}

/* ===========================================================
   5. TOP-BAR / NAVBAR (Black Highlighter Style)
   =========================================================== */

.top-bar {
  --wght: 600;
  display: flex;
  position: sticky;
  top: 0;
  z-index: 60;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  width: 100%;
  min-height: var(--topbar-height-on-desktop);
  padding: 0 1.25rem;
  font-family: var(--ui-font);
  font-size: calc(var(--base-font-size) * 0.88);
  font-weight: var(--wght);
  letter-spacing: 0.04em;
  background: linear-gradient(
    180deg,
    rgba(var(--swatch-menubg-black-color), 0.96) 0%,
    rgba(var(--swatch-menubg-color), 0.96) 100%
  );
  border-bottom: 0.0625rem solid rgba(var(--swatch-primary), 0.28);
  box-shadow: 0 0.875rem 1.8rem rgba(var(--swatch-menubg-black-color), 0.28);
  backdrop-filter: blur(12px);
}

.top-bar-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.85rem;
  min-width: 0;
  color: rgb(var(--swatch-text-light));
  text-decoration: none;
}

.top-bar-brand:hover,
.top-bar-brand:active {
  color: rgb(var(--swatch-text-light));
  text-decoration: none;
}

.top-bar-brand:visited {
  color: rgb(var(--swatch-text-light));
}

.top-bar-brand__mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 3rem;
  height: 2.3rem;
  padding: 0 0.7rem;
  border: 0.0625rem solid rgba(var(--swatch-primary), 0.38);
  border-radius: 0.65rem;
  background: linear-gradient(
    135deg,
    rgba(var(--swatch-primary-darkest), 0.95) 0%,
    rgba(var(--swatch-primary), 0.88) 100%
  );
  box-shadow: inset 0 0 0 0.0625rem rgba(var(--swatch-text-light), 0.06);
  color: rgb(var(--swatch-text-light));
  font-family: var(--title-font);
  font-size: 0.9rem;
  font-weight: 800;
  letter-spacing: 0.14em;
}

.top-bar-brand__text {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.top-bar-brand__title {
  color: rgb(var(--swatch-text-light));
  font-family: var(--title-font);
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  line-height: 1.1;
  text-transform: uppercase;
}

.top-bar-brand__meta {
  color: rgba(var(--swatch-text-light), 0.62);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  line-height: 1.2;
  text-transform: uppercase;
}

.top-bar-nav-shell {
  display: flex;
  flex: 1 1 auto;
  justify-content: flex-end;
  min-width: 0;
}

.top-bar-nav {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 0.35rem;
  height: auto;
  margin: 0;
  padding: 0;
  list-style: none;
}

.top-bar-nav li {
  display: inline-flex;
  position: relative;
  flex-grow: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  cursor: pointer;
}

.top-bar-nav li a {
  --wght: 600;
  display: inline-flex;
  position: relative;
  align-items: center;
  justify-content: center;
  min-height: 2.5rem;
  padding: 0.55rem 0.9rem;
  overflow: hidden;
  transition: color 150ms cubic-bezier(0.4, 0, 0.2, 1),
              background-color 150ms cubic-bezier(0.4, 0, 0.2, 1),
              border-color 150ms cubic-bezier(0.4, 0, 0.2, 1),
              box-shadow 150ms cubic-bezier(0.4, 0, 0.2, 1);
  border: 0.0625rem solid transparent;
  border-radius: 0.55rem;
  background-color: rgba(var(--swatch-menubg-light-color), 0.2);
  color: rgb(var(--topmenu-category-color));
  font-weight: var(--wght);
  font-size: calc(var(--base-font-size) * 0.85);
  line-height: 1;
  text-decoration: none;
  white-space: nowrap;
}

.top-bar-nav li > span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.5rem;
  padding: 0.55rem 0.9rem;
  border: 0.0625rem solid rgba(var(--swatch-tertiary-color), 0.35);
  border-radius: 0.55rem;
  background: rgba(var(--swatch-menubg-light-color), 0.36);
  color: rgba(var(--swatch-text-light), 0.82);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  line-height: 1;
  text-transform: uppercase;
}

.top-bar-nav li a:visited {
  color: rgb(var(--topmenu-category-color));
}

.top-bar-nav li:hover > a,
.top-bar-nav li:active > a {
  --wght: 700;
  color: rgb(var(--topmenu-category-hover-color));
  border-color: rgba(var(--swatch-primary), 0.38);
  background-color: rgba(var(--swatch-primary-darkest), 0.42);
  box-shadow: 0 0 0 0.0625rem rgba(var(--swatch-primary), 0.16);
  font-weight: var(--wght);
}

/* Sliding borders (top & bottom) — the signature BH animation */
.top-bar-nav li > a::before,
.top-bar-nav li > a::after {
  content: " ";
  position: absolute;
  width: 100%;
  height: 0.1875rem;
  transition: clip-path 200ms cubic-bezier(0.4, 0, 0.2, 1);
  background-color: rgb(var(--topmenu-hover-border-color));
}

.top-bar-nav li > a::before {
  --clip-path: polygon(0 0, 0 0, 0 100%, 0 100%);
  clip-path: var(--clip-path);
  top: 0;
  left: 0;
}

.top-bar-nav li > a::after {
  --clip-path: polygon(100% 0, 100% 0, 100% 100%, 100% 100%);
  clip-path: var(--clip-path);
  right: 0;
  bottom: 0;
}

.top-bar-nav li:hover > a::before,
.top-bar-nav li:active > a::before,
.top-bar-nav li:hover > a::after,
.top-bar-nav li:active > a::after {
  --clip-path: polygon(-15% 0, 115% 0, 100% 100%, 0 100%);
}

/* ===========================================================
   6. SIDEBAR MOBILE - Slide-in Animation
   =========================================================== */

.sidebar-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 2.85rem;
  height: 2.85rem;
  border: 0.0625rem solid rgba(var(--swatch-tertiary-color), 0.35);
  border-radius: 0.6rem;
  background: rgba(var(--swatch-menubg-light-color), 0.24);
  color: rgb(var(--topmenu-category-color));
  font-size: 1.35rem;
  cursor: pointer;
  transition: color 150ms cubic-bezier(0.4, 0, 0.2, 1),
              border-color 150ms cubic-bezier(0.4, 0, 0.2, 1),
              background-color 150ms cubic-bezier(0.4, 0, 0.2, 1);
}
.sidebar-toggle:hover {
  color: rgb(var(--topmenu-category-hover-color));
  border-color: rgba(var(--swatch-primary), 0.38);
  background: rgba(var(--swatch-primary-darkest), 0.4);
}

.sidebar-overlay {
  display: none;
  position: fixed;
  z-index: 86;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(var(--swatch-menubg-black-color), 0.72);
  opacity: 0;
  transition: opacity 500ms cubic-bezier(0.4, 0, 0.2, 1) 100ms;
  pointer-events: none;
}
.sidebar-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

.sidebar {
  position: fixed;
  z-index: 87;
  top: 0;
  left: calc(var(--sidebar-width-on-mobile) * -1);
  width: var(--sidebar-width-on-mobile);
  max-width: 80vw;
  height: 100%;
  padding: 0.9rem;
  overflow-y: auto;
  background: linear-gradient(
    180deg,
    rgba(var(--swatch-menubg-black-color), 0.98) 0%,
    rgba(var(--sidebar-bg-color), 1) 100%
  );
  color: rgb(var(--sidebar-links-text));
  font-family: var(--ui-font);
  direction: initial;
  transition: left 500ms cubic-bezier(0.4, 0, 0.2, 1) 100ms;
  border-right: 0.0625rem solid rgba(var(--swatch-primary), 0.24);
  box-shadow: 0.5rem 0 1.8rem rgba(var(--swatch-menubg-black-color), 0.48);
}
.sidebar.open {
  left: 0;
}

.sidebar .side-block {
  margin: 0.5rem 0;
  padding: 0;
  border: none;
  background: transparent;
}

.sidebar .heading {
  display: flex;
  align-items: flex-end;
  justify-content: flex-start;
  min-height: 1.5rem;
  margin: 0 0 0.25rem 0;
  padding: 0 0.25rem;
  box-shadow: 0 0.0625rem 0 0 rgb(var(--swatch-primary-darker));
  font-family: var(--title-font);
  font-size: calc(var(--base-font-size) * 0.85);
  font-weight: 700;
  letter-spacing: 0.016em;
  text-transform: uppercase;
  color: rgb(var(--swatch-primary-darker));
}

.sidebar .menu-item {
  display: flex;
  align-items: center;
  min-height: 2.6rem;
  padding: 0;
  box-shadow: inset 0 -0.0625rem 0 0 rgba(var(--swatch-border-color), 0.08);
}

.sidebar .menu-item a {
  --wght: 500;
  display: flex;
  flex-grow: 2;
  align-items: center;
  height: 100%;
  padding: 0.65rem 0.8em 0.65rem 1em;
  transition: background-color 150ms cubic-bezier(0.4, 0, 0.2, 1),
              color 150ms cubic-bezier(0.4, 0, 0.2, 1),
              font-weight 200ms cubic-bezier(0.4, 0, 0.2, 1);
  color: rgb(var(--sidebar-links-text));
  font-size: calc(var(--base-font-size) * 0.9);
  font-weight: var(--wght);
  letter-spacing: 0.04em;
  line-height: 1.5;
  text-decoration: none;
  background-color: transparent;
  border-radius: 0.5rem;
  position: relative;
  overflow: hidden;
}

.sidebar .menu-item span {
  display: flex;
  flex-grow: 2;
  align-items: center;
  width: 100%;
  height: 100%;
  padding: 0.65rem 0.8em 0.65rem 1em;
  color: rgba(var(--swatch-text-light), 0.76);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  line-height: 1.4;
  text-transform: uppercase;
}

.sidebar .menu-item a:visited {
  color: rgb(var(--sidebar-links-text));
}

/* Hover bar diagonal — another signature BH animation */
.sidebar .menu-item a::before {
  --clip-path: polygon(0 0, 0 0, 0 100%, 0 100%);
  content: " ";
  position: absolute;
  z-index: -1;
  top: 0;
  left: -1em;
  width: calc(100% + 1em);
  height: 100%;
  transition: clip-path 200ms cubic-bezier(0.4, 0, 0.2, 1);
  background-color: rgb(var(--sidebar-links-hover-bg-color));
  pointer-events: none;
  clip-path: var(--clip-path);
}

.sidebar .menu-item a:hover::before,
.sidebar .menu-item a:active::before {
  --clip-path: polygon(-15% 0, 115% 0, 100% 100%, 0 100%);
}

.sidebar .menu-item a:hover,
.sidebar .menu-item a:active {
  --wght: 700;
  color: rgb(var(--sidebar-links-hover-text-color));
  font-weight: var(--wght);
  text-decoration: none;
}

.sidebar .close-btn {
  display: flex;
  justify-content: flex-end;
  padding: 0.5rem;
}

.sidebar .close-btn button {
  background: rgba(var(--swatch-menubg-light-color), 0.28);
  border: 0.0625rem solid rgba(var(--swatch-tertiary-color), 0.28);
  border-radius: 0.55rem;
  color: rgb(var(--sidebar-links-text));
  font-size: 1.25rem;
  cursor: pointer;
  padding: 0.35rem 0.7rem;
  transition: color 150ms cubic-bezier(0.4, 0, 0.2, 1);
}
.sidebar .close-btn button:hover {
  color: rgb(var(--swatch-primary));
}

/* ===========================================================
   7. ACORTADOR — MAIN CONTENT
   =========================================================== */

/* Contenedor principal */
.container {
  width: 100%;
  max-width: 640px;
  margin: 1.75rem auto 2.5rem;
  padding: 0 1.5rem;
}

/* Header del sitio */
.site-header {
  position: relative;
  margin-bottom: 2rem;
  padding: 1.45rem 1.55rem 1.65rem;
  border: 0.0625rem solid rgba(var(--swatch-primary), 0.22);
  border-radius: 0.9rem;
  background: linear-gradient(
    135deg,
    rgba(var(--swatch-primary-darkest), 0.34) 0%,
    rgba(var(--swatch-menubg-color), 0.96) 42%,
    rgba(var(--swatch-menubg-dark-color), 0.98) 100%
  );
  box-shadow: 0 1rem 2rem rgba(var(--swatch-menubg-black-color), 0.34);
  overflow: hidden;
}

.site-header::before {
  content: "";
  position: absolute;
  top: -35%;
  right: -10%;
  width: 16rem;
  height: 16rem;
  background: radial-gradient(
    circle,
    rgba(var(--swatch-primary), 0.22) 0%,
    rgba(var(--swatch-primary), 0) 72%
  );
  pointer-events: none;
}

.site-header::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background-image: var(--diagonal-stripes);
  background-repeat: repeat;
  opacity: 0.28;
  pointer-events: none;
}

.site-header > * {
  position: relative;
  z-index: 1;
}
.site-header h1 {
  font-family: var(--header-font);
  font-size: clamp(1.85rem, 4vw, 2.75rem);
  font-weight: 800;
  color: rgb(var(--swatch-headerh1-color, var(--swatch-text-secondary-color)));
  letter-spacing: -0.02em;
  line-height: 1.12;
}
.site-header .sub {
  max-width: 50rem;
  color: rgba(var(--swatch-text-secondary-color), 0.76);
  font-size: 0.96rem;
  margin-top: 0.6rem;
}

/* Cards */
.card {
  background: linear-gradient(
    180deg,
    rgba(var(--swatch-secondary-color), 0.96) 0%,
    rgba(var(--swatch-menubg-color), 0.92) 100%
  );
  border: 0.0625rem solid rgba(var(--swatch-tertiary-color), 0.34);
  border-radius: 0.75rem;
  padding: 1.6rem;
  margin-bottom: 1.5rem;
  box-shadow: 0 0.8rem 1.75rem rgba(var(--swatch-alternate-color), 0.32);
}

.card label {
  display: block;
  font-family: var(--ui-font);
  font-size: 0.85rem;
  font-weight: 600;
  color: rgb(var(--swatch-text-tertiary-color));
  margin-bottom: 0.4rem;
  letter-spacing: 0.03em;
}

.card .optional {
  font-size: 0.8rem;
  color: rgba(var(--swatch-text-tertiary-color), 0.6);
  font-weight: 400;
}

/* Input row */
.input-row {
  display: flex;
  gap: 0.5rem;
}
.input-row input {
  flex: 1;
}

/* Inputs genéricos */
input[type="text"],
input[type="url"],
input[type="email"],
input[type="password"],
textarea {
  width: 100%;
  padding: 0.7rem 0.9rem;
  border: 0.0625rem solid rgba(var(--swatch-tertiary-color), 0.52);
  border-radius: 0.375rem;
  background-color: rgba(var(--swatch-menubg-black-color), 0.82);
  color: rgb(var(--swatch-text-light));
  font-family: var(--body-font);
  font-size: 0.95rem;
  outline: 0 solid rgb(var(--swatch-primary));
  transition: box-shadow 200ms cubic-bezier(0.4, 0, 0.2, 1),
              border-color 150ms cubic-bezier(0.4, 0, 0.2, 1),
              background-color 150ms cubic-bezier(0.4, 0, 0.2, 1);
}

input:focus {
  outline-width: 0;
  box-shadow: 0 0 0 0.125em rgb(var(--swatch-primary));
  border-color: rgb(var(--swatch-primary));
}

input::placeholder {
  color: rgba(var(--swatch-text-tertiary-color), 0.52);
}

/* ===========================================================
   8. BOTONES — Black Highlighter Style
   =========================================================== */

.btn {
  --wght: 500;
  display: inline-flex;
  position: relative;
  z-index: 2;
  align-items: center;
  justify-content: center;
  min-width: 5em;
  padding: 0.7rem 1.4rem;
  overflow: hidden;
  transition: border-color 200ms cubic-bezier(0.4, 0, 0.2, 1),
              box-shadow 200ms cubic-bezier(0.4, 0, 0.2, 1),
              color 150ms cubic-bezier(0.4, 0, 0.2, 1),
              background-color 150ms cubic-bezier(0.4, 0, 0.2, 1);
  border: 0.0625rem solid rgba(var(--swatch-primary), 0.18);
  outline: 0 solid rgb(var(--swatch-primary));
  background-color: rgba(var(--ui-button-bg), 0.98);
  box-shadow: 0 0 0 0 rgb(var(--ui-button-bg));
  color: rgb(var(--ui-button-txt));
  font-family: var(--ui-font);
  font-size: 0.95rem;
  font-weight: var(--wght);
  border-radius: 0.375rem;
  cursor: pointer;
  white-space: nowrap;
}

.btn:hover, .btn:active {
  --wght: 700;
  border-color: transparent;
  outline: 0 solid rgb(var(--swatch-primary));
  background-color: rgb(var(--ui-button-hover-bg));
  box-shadow: 0 0 0 0.125rem rgb(var(--ui-button-hover-outline));
  color: rgb(var(--ui-button-hover-txt));
  text-decoration: none;
}

.btn:active {
  transform: scale(0.97);
}

.btn-primary {
  --wght: 600;
  background-color: rgb(var(--swatch-primary-darkest));
  color: rgb(var(--swatch-menutxt-light-color));
  border-color: transparent;
}

.btn-primary:hover, .btn-primary:active {
  background-color: rgb(var(--swatch-primary));
  color: rgb(var(--swatch-menutxt-light-color));
}

.btn-secondary {
  background-color: rgba(var(--swatch-menubg-black-color), 0.58);
  color: rgb(var(--swatch-menutxt-general-color));
  border: 0.0625rem solid rgba(var(--swatch-tertiary-color), 0.38);
}
.btn-secondary:hover, .btn-secondary:active {
  background-color: rgb(var(--swatch-primary));
  color: rgb(var(--swatch-menutxt-light-color));
  border-color: transparent;
}

.btn-danger {
  background-color: rgba(var(--danger-accent), 0.8);
  color: rgb(var(--swatch-menutxt-light-color));
  border-color: transparent;
}
.btn-danger:hover, .btn-danger:active {
  background-color: rgb(var(--danger-accent));
  color: rgb(var(--swatch-menutxt-light-color));
}

.btn-sm {
  padding: 0.4rem 0.7rem;
  font-size: 0.8rem;
  min-width: auto;
}

/* ===========================================================
   9. SHORT URL RESULT BOX
   =========================================================== */

.short-url {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  background: rgba(var(--swatch-menubg-black-color), 0.58);
  border: 0.0625rem solid rgba(var(--swatch-tertiary-color), 0.34);
  border-radius: 0.375rem;
  padding: 0.6rem 0.9rem;
  margin-top: 1rem;
  font-family: var(--mono-font);
  font-size: 0.9rem;
}

.short-url a {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: rgb(var(--link-color));
}

/* ===========================================================
   10. LINK ITEMS (Lista de links acortados)
   =========================================================== */

.list-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.8rem;
}

.list-header h2 {
  font-family: var(--title-font);
  font-size: 1.1rem;
  font-weight: 700;
  color: rgb(var(--swatch-primary-darker));
}

.list-header span {
  color: rgba(var(--swatch-text-tertiary-color), 0.6);
  font-size: 0.85rem;
}

.empty {
  text-align: center;
  color: rgba(var(--swatch-text-tertiary-color), 0.5);
  padding: 2rem 0;
  font-size: 0.9rem;
}

.link-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.7rem 0.9rem;
  background: rgba(var(--swatch-menubg-black-color), 0.46);
  border: 0.0625rem solid rgba(var(--swatch-tertiary-color), 0.24);
  border-radius: 0.375rem;
  margin-bottom: 0.5rem;
  transition: border-color 150ms cubic-bezier(0.4, 0, 0.2, 1),
              transform 150ms cubic-bezier(0.4, 0, 0.2, 1),
              box-shadow 150ms cubic-bezier(0.4, 0, 0.2, 1);
}

.link-item:hover {
  border-color: rgba(var(--swatch-primary-darker), 0.3);
  transform: translateY(-0.0625rem);
  box-shadow: 0 0.75rem 1.4rem rgba(var(--swatch-menubg-black-color), 0.3);
}

.link-item .code {
  color: rgb(var(--link-color));
  font-family: var(--mono-font);
  font-weight: 600;
  min-width: 5rem;
  font-size: 0.9rem;
}

.link-item .dest {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: rgba(var(--swatch-text-tertiary-color), 0.7);
  font-size: 0.85rem;
}

.link-item .clicks {
  color: rgba(var(--swatch-text-tertiary-color), 0.5);
  font-size: 0.8rem;
  min-width: 3rem;
  text-align: right;
}

.link-item .actions {
  display: flex;
  gap: 0.3rem;
}

/* ===========================================================
   11. TOAST NOTIFICATION
   =========================================================== */

.toast {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(var(--swatch-menubg-black-color), 0.96);
  border: 0.0625rem solid rgba(var(--swatch-primary), 0.28);
  color: rgb(var(--swatch-text-secondary-color));
  padding: 0.7rem 1.4rem;
  border-radius: 0.375rem;
  font-size: 0.9rem;
  font-family: var(--ui-font);
  opacity: 0;
  transition: opacity 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  pointer-events: none;
  z-index: 100;
  box-shadow: 0 0.25rem 0.75rem rgba(0, 0, 0, 0.3);
}

.toast.show {
  opacity: 1;
}

.public-footer {
  margin-top: 3rem;
  padding-bottom: 2rem;
}

.public-footer__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding-top: 1rem;
  border-top: 0.0625rem solid rgba(var(--swatch-tertiary-color), 0.25);
}

.public-footer__inner p {
  margin-top: 0.25rem;
  color: rgba(var(--swatch-text-tertiary-color), 0.65);
  font-size: 0.85rem;
}

.public-footer__links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 0.8rem;
}

.public-footer__links a {
  font-size: 0.85rem;
}

.consent-banner {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  left: 1rem;
  z-index: 80;
}

.consent-banner__content {
  max-width: 64rem;
  margin: 0 auto;
  padding: 1rem 1.1rem;
  border: 0.0625rem solid rgba(var(--swatch-tertiary-color), 0.3);
  border-radius: 0.5rem;
  background: rgba(var(--swatch-menubg-color), 0.98);
  box-shadow: 0 0.75rem 2rem rgba(var(--swatch-alternate-color), 0.18);
}

.consent-banner__content p {
  color: rgba(var(--swatch-text-tertiary-color), 0.78);
  font-size: 0.9rem;
}

.consent-banner__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 0.9rem;
}

.consent-shortcut {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  z-index: 85;
  padding: 0.7rem 0.95rem;
  border: 0.0625rem solid rgba(var(--swatch-primary), 0.25);
  border-radius: 999px;
  background: rgba(var(--swatch-menubg-color), 0.98);
  box-shadow: 0 0.5rem 1.5rem rgba(var(--swatch-alternate-color), 0.16);
  color: rgb(var(--swatch-primary-darker));
  cursor: pointer;
  font-family: var(--ui-font);
  font-size: 0.82rem;
  font-weight: 700;
}

.consent-shortcut:hover,
.consent-shortcut:active {
  background: rgb(var(--swatch-primary));
  color: rgb(var(--swatch-menutxt-light-color));
}

.consent-panel {
  position: fixed;
  inset: 0;
  z-index: 90;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  background: rgba(var(--swatch-menubg-black-color), 0.45);
}

.consent-panel__card {
  width: 100%;
  max-width: 38rem;
  margin-bottom: 0;
}

.consent-panel__header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1rem;
}

.consent-panel__header h2 {
  margin-bottom: 0.2rem;
  font-size: 1.1rem;
  color: rgb(var(--swatch-primary-darker));
}

.consent-panel__header p {
  color: rgba(var(--swatch-text-tertiary-color), 0.7);
  font-size: 0.9rem;
}

.consent-option {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 0.9rem 1rem;
  margin-bottom: 0.8rem;
  border: 0.0625rem solid rgba(var(--swatch-tertiary-color), 0.25);
  border-radius: 0.375rem;
  background: rgba(var(--swatch-menubg-dark-color), 0.08);
}

.consent-option strong {
  display: block;
  margin-bottom: 0.2rem;
}

.consent-option p,
.consent-option span {
  color: rgba(var(--swatch-text-tertiary-color), 0.72);
  font-size: 0.85rem;
}

.consent-option input[type="checkbox"] {
  width: 1.2rem;
  height: 1.2rem;
  flex: 0 0 auto;
}

.consent-option--locked {
  cursor: default;
}

.consent-panel__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 1rem;
}

/* ===========================================================
   12. MOBILE / RESPONSIVE
   =========================================================== */

@media only screen and (max-width: 56.25rem) {
  /* Ajustar body background para mobile */
  body {
    background-size: 100% var(--header-height-on-mobile),
                     100% calc(var(--header-height-on-mobile) + var(--topbar-height-on-mobile)),
                     100% var(--background-gradient-distance);
  }

  /* Top-bar mobile */
  .top-bar {
    min-height: var(--topbar-height-on-mobile);
    padding: 0 0.9rem 0 1rem;
    background: var(--gradient-topmenu-mobile);
  }

  .top-bar-brand__mark {
    min-width: 2.65rem;
    height: 2.25rem;
    padding: 0 0.55rem;
  }

  .top-bar-brand__title {
    font-size: 0.88rem;
  }

  .top-bar-brand__meta {
    display: none;
  }

  .top-bar-nav-shell {
    display: none;
  }

  /* Mostrar sidebar toggle */
  .sidebar-toggle {
    display: flex;
  }

  .sidebar-overlay {
    display: block;
  }

  /* Ajustes de contenido */
  .container {
    padding: 0 1rem;
    margin: 1.25rem auto 2rem;
  }

  .site-header {
    padding: 1.2rem 1rem 1.35rem;
  }

  .site-header .sub {
    font-size: 0.92rem;
  }

  .card {
    padding: 1.15rem;
  }

  .input-row {
    flex-direction: column;
  }

  .hero-actions .btn,
  .input-row .btn {
    width: 100%;
  }

  #customInput,
  #loginForm .btn,
  #registerForm .btn {
    width: 100% !important;
  }

  .link-item {
    flex-wrap: wrap;
  }

  .link-item .code {
    min-width: auto;
  }

  .link-item .clicks {
    min-width: auto;
  }

  .public-footer__inner,
  .consent-panel__header,
  .consent-option {
    flex-direction: column;
    align-items: flex-start;
  }

  .list-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.45rem;
  }

  .public-footer__links {
    justify-content: flex-start;
  }

  .consent-banner {
    right: 0.75rem;
    bottom: 0.75rem;
    left: 0.75rem;
  }

  .consent-shortcut {
    right: 0.75rem;
    bottom: 0.75rem;
    left: 0.75rem;
    text-align: center;
  }
}

/* Pantallas muy chicas */
@media only screen and (max-width: 20rem) {
  body {
    font-size: calc(var(--base-font-size) * (14 / 15));
  }
}

/* ===========================================================
   INSTRUCCIONES: HTML QUE TENÉS QUE AGREGAR
   ===========================================================
   
   Para que esto funcione, necesitás agregar esta estructura
   DENTRO del <body> de tu página, ANTES del .container:

   <!-- Diagonal Stripes Overlay -->
   <div class="diagonal-stripes"></div>

   <!-- Sidebar Overlay -->
   <div class="sidebar-overlay" id="sidebarOverlay"></div>

   <!-- Sidebar -->
   <aside class="sidebar" id="sidebar">
     <div class="close-btn">
       <button id="sidebarClose">✕</button>
     </div>
     <div class="side-block">
       <div class="heading">Navegación</div>
       <div class="menu-item"><a href="https://sht.stratix.cl/">Acortador</a></div>
       <div class="menu-item"><a href="#">Mis Links</a></div>
     </div>
   </aside>

   <!-- Top Bar -->
   <header class="top-bar">
     <button class="sidebar-toggle" id="sidebarToggle">☰</button>
     <ul class="top-bar-nav">
       <li><a href="https://sht.stratix.cl/">Acortador</a></li>
       <li><a href="#">Links</a></li>
       <li><a href="#">Estadísticas</a></li>
     </ul>
   </header>

   <!-- Tu .container actual va acá -->

   Y este JavaScript para el sidebar:

   <script>
     const toggle = document.getElementById('sidebarToggle');
     const sidebar = document.getElementById('sidebar');
     const overlay = document.getElementById('sidebarOverlay');
     const close = document.getElementById('sidebarClose');

     function openSidebar() {
       sidebar.classList.add('open');
       overlay.classList.add('open');
     }
     function closeSidebar() {
       sidebar.classList.remove('open');
       overlay.classList.remove('open');
     }
     if (toggle) toggle.addEventListener('click', openSidebar);
     if (close) close.addEventListener('click', closeSidebar);
     if (overlay) overlay.addEventListener('click', closeSidebar);
   </script>

   =========================================================== */
