/* ====================================================================
   Windows 98 / Internet Explorer retro overlay
   ---------------------------------------------------------------
   Wraps the existing page in a Win98 desktop + IE browser chrome.
   Fully inert until html.win98-active is toggled by win98-overlay.js,
   so it has zero effect on normal layout, SEO, or accessibility
   when the toggle hasn't been used.

   Requires: assets/images/win98-desktop.png (the desktop backdrop)
   Pair with: assets/js/win98-overlay.js
   ==================================================================== */

:root {
  --win98-face: #c0c0c0;
  --win98-face-light: #dfdfdf;
  --win98-face-lighter: #ffffff;
  --win98-face-dark: #808080;
  --win98-face-darker: #000000;
  --win98-blue-start: #000080;
  --win98-blue-end: #1084d0;
  --win98-font: Tahoma, "Segoe UI", Geneva, "MS Sans Serif", Arial, sans-serif;
}

/* ---------- toggle button, always visible, always on top ---------- */

#win98-toggle {
  position: fixed;
  bottom: 16px;
  right: 16px;
  z-index: 100000;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 16px;
  border: none;
  border-radius: 999px;
  background: rgba(18, 20, 28, 0.72);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  color: #fff;
  font-family: var(--win98-font);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.35);
  transition: background 0.2s ease, transform 0.2s ease;
}

#win98-toggle:hover { background: rgba(18, 20, 28, 0.92); transform: translateY(-1px); }
#win98-toggle:active { transform: translateY(0); }
#win98-toggle .win98-toggle-icon { font-size: 1rem; line-height: 1; }

/* ---------- structural wrappers: inert (no box) until active ---------- */

#win98-desktop,
#win98-frame,
.win98-content-area,
#win98-real-content {
  display: contents;
}

#win98-retro-frame { display: none; }

.win98-chrome { display: none; }

/* ==================================================================
   ACTIVE (retro) mode
   ================================================================== */

html.win98-active body {
  overflow: hidden;
  height: 100vh;
}

html.win98-active #win98-desktop {
  display: flex;
  align-items: center;
  justify-content: center;
  position: fixed;
  inset: 0;
  z-index: 9000;
  padding: clamp(10px, 4vh, 48px) clamp(10px, 4vw, 48px);
  background: #008080 url("../images/win98-desktop.png") center top / cover no-repeat;
}

html.win98-active #win98-frame {
  display: flex;
  flex-direction: column;
  width: min(1180px, 100%);
  height: 100%;
  max-height: 800px;
  background: var(--win98-face);
  font-family: var(--win98-font);
  color: #000;
  box-shadow:
    inset -1px -1px 0 var(--win98-face-darker),
    inset 1px 1px 0 var(--win98-face-lighter),
    inset -2px -2px 0 var(--win98-face-dark),
    inset 2px 2px 0 var(--win98-face-light),
    5px 5px 18px rgba(0, 0, 0, 0.5);
}

html.win98-active .win98-chrome { display: flex; }

/* ---------- title bar ---------- */

.win98-titlebar {
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 3px 3px 3px 5px;
  background: linear-gradient(90deg, var(--win98-blue-start), var(--win98-blue-end));
  color: #fff;
  flex: none;
}

.win98-titlebar-left { display: flex; align-items: center; gap: 6px; min-width: 0; }

.win98-ie-icon {
  flex: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, #7fd8ff, #0058c9 70%);
  color: #fff;
  font: italic 700 11px/16px Georgia, "Times New Roman", serif;
  text-align: center;
}

.win98-title-text {
  font-size: 12px;
  font-weight: 700;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.win98-titlebar-btns { display: flex; gap: 2px; flex: none; }

.win98-tb-btn {
  width: 18px;
  height: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--win98-face);
  color: #000;
  font-size: 10px;
  line-height: 1;
  border: none;
  padding: 0;
  cursor: pointer;
  box-shadow:
    inset -1px -1px 0 var(--win98-face-darker),
    inset 1px 1px 0 var(--win98-face-lighter);
}

.win98-tb-btn:active {
  box-shadow:
    inset 1px 1px 0 var(--win98-face-darker),
    inset -1px -1px 0 var(--win98-face-lighter);
}

/* ---------- menu bar ---------- */

.win98-menubar {
  flex: none;
  gap: 14px;
  padding: 3px 8px;
  font-size: 12px;
  border-bottom: 1px solid var(--win98-face-dark);
  box-shadow: 0 1px 0 var(--win98-face-lighter);
}

.win98-menubar span { cursor: default; padding: 1px 3px; }
.win98-menubar span:hover { background: var(--win98-blue-end); color: #fff; }

/* ---------- toolbar ---------- */

.win98-toolbar {
  flex: none;
  align-items: stretch;
  gap: 1px;
  padding: 4px 6px;
  border-bottom: 1px solid var(--win98-face-dark);
  box-shadow: 0 1px 0 var(--win98-face-lighter);
}

.win98-tool-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  min-width: 54px;
  padding: 3px 6px;
  background: transparent;
  border: none;
  font-family: var(--win98-font);
  font-size: 10px;
  color: #000;
  cursor: pointer;
}

.win98-tool-btn .win98-tool-icon { font-size: 15px; line-height: 1; }

.win98-tool-btn:hover {
  box-shadow:
    inset -1px -1px 0 var(--win98-face-darker),
    inset 1px 1px 0 var(--win98-face-lighter);
}

.win98-tool-btn:active {
  box-shadow:
    inset 1px 1px 0 var(--win98-face-darker),
    inset -1px -1px 0 var(--win98-face-lighter);
}

.win98-tool-sep {
  width: 1px;
  margin: 2px 5px;
  background: var(--win98-face-dark);
  box-shadow: 1px 0 0 var(--win98-face-lighter);
}

/* ---------- address bar ---------- */

.win98-addressbar {
  flex: none;
  align-items: center;
  gap: 8px;
  padding: 5px 8px 7px;
  font-size: 12px;
}

.win98-address-label { flex: none; }

.win98-address-field {
  flex: 1 1 auto;
  display: flex;
  align-items: center;
  gap: 6px;
  min-width: 0;
  background: #fff;
  padding: 2px 6px;
  box-shadow:
    inset 1px 1px 0 var(--win98-face-darker),
    inset -1px -1px 0 var(--win98-face-lighter),
    inset 2px 2px 0 var(--win98-face-dark);
}

.win98-address-icon { flex: none; font-size: 12px; }

.win98-address-input {
  flex: 1 1 auto;
  min-width: 0;
  border: none;
  outline: none;
  background: transparent;
  font-family: var(--win98-font);
  font-size: 12px;
  color: #000;
}

.win98-address-dropdown {
  flex: none;
  width: 16px;
  height: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--win98-face);
  font-size: 8px;
  box-shadow:
    inset -1px -1px 0 var(--win98-face-darker),
    inset 1px 1px 0 var(--win98-face-lighter);
}

.win98-links-label {
  flex: none;
  color: var(--win98-face-dark);
  padding-left: 8px;
  border-left: 1px solid var(--win98-face-dark);
  box-shadow: -1px 0 0 var(--win98-face-lighter);
}

/* ---------- content area: the retro site renders here via an iframe ---------- */

html.win98-active .win98-content-area {
  display: block;
  flex: 1 1 auto;
  min-height: 0;
  overflow: hidden;
  background: #fff;
  margin: 4px 5px 0;
  box-shadow:
    inset 1px 1px 0 var(--win98-face-darker),
    inset -1px -1px 0 var(--win98-face-lighter),
    inset 2px 2px 0 var(--win98-face-dark);
}

html.win98-active #win98-real-content { display: none; }

html.win98-active #win98-retro-frame {
  display: block;
  width: 100%;
  height: 100%;
  border: none;
  background: #fff;
}

/* ---------- status bar ---------- */

.win98-statusbar {
  flex: none;
  align-items: center;
  gap: 8px;
  padding: 3px 6px;
  margin: 4px 5px 5px;
  font-size: 11px;
  box-shadow:
    inset 1px 1px 0 var(--win98-face-dark),
    inset -1px -1px 0 var(--win98-face-lighter);
}

.win98-status-text { flex: 1 1 auto; padding-left: 4px; }

.win98-status-cell {
  flex: none;
  width: 54px;
  height: 14px;
  box-shadow:
    inset 1px 1px 0 var(--win98-face-dark),
    inset -1px -1px 0 var(--win98-face-lighter);
}

.win98-status-zone {
  flex: none;
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 1px 6px;
  box-shadow:
    inset 1px 1px 0 var(--win98-face-dark),
    inset -1px -1px 0 var(--win98-face-lighter);
}

/* ---------- responsive ---------- */

@media (max-width: 720px) {
  html.win98-active #win98-desktop { padding: 6px; }
  .win98-tool-btn { min-width: 42px; font-size: 9px; }
  .win98-tool-btn .win98-tool-icon { font-size: 13px; }
  .win98-status-cell { display: none; }
  .win98-title-text { max-width: 38vw; }
  .win98-links-label { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  #win98-toggle { transition: none; }
}