/*
 * "retro" theme flourishes — modelled on danlegt.com.
 *
 * Windows 98 chrome over a black pixel-star desktop, PixeloidSans pixel font,
 * crisp (non-antialiased, pixelated) rendering. Scoped entirely to
 * :root[data-theme="retro"] so it never touches the other themes.
 *
 * CSP-safe: external stylesheet + self-hosted fonts only (font-src 'self'),
 * no inline styles, no remote assets. The starfield is pure CSS so we don't
 * depend on img-src for a background gif.
 */

/* Self-hosted pixel fonts (mirrored locally — GGBotNet PixeloidSans is free,
   PixelOperator is CC0). ------------------------------------------------- */
@font-face {
  font-family: "PixeloidSans";
  src: url("/static/fonts/pixeloid_sans/PixeloidSans.ttf") format("truetype");
  font-weight: normal;
  font-display: swap;
}
@font-face {
  font-family: "PixeloidSans";
  src: url("/static/fonts/pixeloid_sans/PixeloidSans-Bold.ttf") format("truetype");
  font-weight: bold;
  font-display: swap;
}
@font-face {
  font-family: "PixelOperatorMono";
  src: url("/static/fonts/pixel_operator/PixelOperatorMono.ttf") format("truetype");
  font-weight: normal;
  font-display: swap;
}
@font-face {
  font-family: "PixelOperatorMono";
  src: url("/static/fonts/pixel_operator/PixelOperatorMono-Bold.ttf") format("truetype");
  font-weight: bold;
  font-display: swap;
}

/* Crisp, pixelated, non-smoothed rendering like the source site. */
:root[data-theme="retro"] {
  font-smooth: never;
  -webkit-font-smoothing: none;
  -moz-osx-font-smoothing: unset;
}

:root[data-theme="retro"] img,
:root[data-theme="retro"] .thumb-link img,
:root[data-theme="retro"] .preview-stage img {
  image-rendering: pixelated;
}

/* Square everything — Win98 had no rounded corners. */
:root[data-theme="retro"] *,
:root[data-theme="retro"] *::before,
:root[data-theme="retro"] *::after {
  border-radius: 0 !important;
}

/* Black desktop with the tiled starfield mirrored from danlegt.com. */
:root[data-theme="retro"] body {
  background-color: #000000;
  background-image: url("/static/backgrounds/stars1.gif");
  background-repeat: repeat;
  background-attachment: fixed;
  image-rendering: pixelated;
}

/* Selection + focus use the classic dotted/navy treatment. */
:root[data-theme="retro"] ::selection {
  background: #000078;
  color: #ffffff;
}

:root[data-theme="retro"] :focus-visible {
  outline: 1px dotted #000000;
  outline-offset: -4px;
}

/* Header: thin flat silver toolbar with a bottom bevel. */
:root[data-theme="retro"] .site-header {
  background: #c0c0c0;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  border-bottom: 2px solid #404040;
  box-shadow: inset 0 1px 0 #ffffff;
}

:root[data-theme="retro"] .nav {
  min-height: 2.1rem;
}

:root[data-theme="retro"] .site-header .button {
  min-height: 1.6rem;
  padding: 0.15rem 0.6rem;
}

:root[data-theme="retro"] .brand {
  color: #000000;
  font-size: 0.95rem;
}

:root[data-theme="retro"] .brand-mark {
  width: 1.4rem;
  height: 1.4rem;
  background: linear-gradient(90deg, #000078, 80%, #0f80cd);
  color: #ffffff;
  font-size: 0.75rem;
  box-shadow: inset -1px -1px 0 #404040, inset 1px 1px 0 #6f6fff;
}

/* Cards are raised silver windows with black text. */
:root[data-theme="retro"] .card {
  background: linear-gradient(to bottom, #ffffff, 4%, #c0c0c0 8%);
  background-color: #c0c0c0;
  color: #000000;
  border: 1px solid #000000;
  box-shadow: var(--shadow);
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

/* Headings become Win98 active title bars. */
:root[data-theme="retro"] h1 {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  margin: -0.35rem -0.35rem 1rem;
  padding: 0.35rem 0.5rem;
  background: linear-gradient(to right, #000078, 80%, #0f80cd);
  color: #ffffff;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0;
  text-shadow: none;
}

/* Fake window control button on the right of every title bar. */
:root[data-theme="retro"] h1::after {
  content: "✕";
  display: grid;
  place-items: center;
  width: 1.15rem;
  height: 1rem;
  background: #c0c0c0;
  color: #000000;
  font-size: 0.7rem;
  font-weight: 700;
  box-shadow: inset -1px -1px 0 #404040, inset 1px 1px 0 #ffffff, inset -2px -2px 0 #808080, inset 2px 2px 0 #dfdfdf;
}

/* Links: classic blue, underlined, purple when visited. */
:root[data-theme="retro"] a:not(.button):not(.brand) {
  color: #0000ee;
  text-decoration: underline;
}

:root[data-theme="retro"] a:not(.button):not(.brand):visited {
  color: #551a8b;
}

:root[data-theme="retro"] a:not(.button):not(.brand):hover {
  color: #ee0000;
}

/* Buttons: grey beveled chunks that press in when active. */
:root[data-theme="retro"] .button,
:root[data-theme="retro"] button {
  background: #c0c0c0;
  color: #000000;
  border: 1px solid #000000;
  font-weight: 700;
  box-shadow: inset -1px -1px 0 #404040, inset 1px 1px 0 #ffffff, inset -2px -2px 0 #808080, inset 2px 2px 0 #dfdfdf;
}

:root[data-theme="retro"] .button:hover,
:root[data-theme="retro"] button:hover {
  background: #d4d0c8;
}

:root[data-theme="retro"] .button:active,
:root[data-theme="retro"] button:active,
:root[data-theme="retro"] .button.is-active {
  background: #c0c0c0;
  box-shadow: inset 1px 1px 0 #404040, inset -1px -1px 0 #ffffff, inset 2px 2px 0 #808080, inset -2px -2px 0 #dfdfdf;
  padding-top: calc(0.45rem + 1px);
  padding-left: calc(0.85rem + 1px);
}

/* The primary call-to-action gets the blue title-bar gradient. */
:root[data-theme="retro"] .button-primary {
  background: linear-gradient(to right, #000078, 80%, #0f80cd);
  color: #ffffff;
}

:root[data-theme="retro"] .button-primary:hover {
  background: linear-gradient(to right, #0a0a9a, 80%, #1a90dd);
}

:root[data-theme="retro"] .button-danger {
  background: #c0c0c0;
  color: #c00000;
  border-color: #000000;
}

/* Inputs and selects look sunken (inset bevel). */
:root[data-theme="retro"] input,
:root[data-theme="retro"] select,
:root[data-theme="retro"] textarea {
  background: #ffffff;
  color: #000000;
  border: 1px solid #000000;
  box-shadow: inset 1px 1px 0 #808080, inset -1px -1px 0 #ffffff;
}

:root[data-theme="retro"] input:focus,
:root[data-theme="retro"] select:focus {
  outline: 1px dotted #000000;
  outline-offset: -3px;
}

/* Labels inside windows read black, not muted-grey-on-grey. */
:root[data-theme="retro"] label span,
:root[data-theme="retro"] .stack-form label,
:root[data-theme="retro"] .form-footer p,
:root[data-theme="retro"] .drop-copy,
:root[data-theme="retro"] .drop-meta,
:root[data-theme="retro"] .upload-subtitle,
:root[data-theme="retro"] .download-subtitle,
:root[data-theme="retro"] .muted-copy,
:root[data-theme="retro"] .kicker,
:root[data-theme="retro"] .checkbox-field span {
  color: #1a1a1a;
}

/* API / docs page: the header is a real full-width window with the intro text
   inside it, and each section card gets a Win98 title bar from its <h2>. */
:root[data-theme="retro"] .docs-header {
  max-width: none;
  margin-bottom: 1.5rem;
  padding: 1.5rem;
  background: linear-gradient(to bottom, #ffffff, 4%, #c0c0c0 8%);
  background-color: #c0c0c0;
  color: #000000;
  border: 1px solid #000000;
  box-shadow: var(--shadow);
}

:root[data-theme="retro"] .docs-header .kicker {
  display: none;
}

:root[data-theme="retro"] .docs-header p,
:root[data-theme="retro"] .docs-header code {
  color: #000000;
  margin-bottom: 0;
}

:root[data-theme="retro"] .docs-card h2 {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  margin: -1.5rem -1.5rem 1rem;
  padding: 0.35rem 0.5rem;
  background: linear-gradient(to right, #000078, 80%, #0f80cd);
  color: #ffffff;
  font-size: 1rem;
  font-weight: 700;
}

/* Make title bars flush to the window edge (a real Win98 title bar) wherever
   the heading is the top of its window: the upload card, the API header, and
   the API section cards. Pages where a heading sits below an icon or kicker
   (download/preview/login) keep the inset heading from the base h1 rule. */
:root[data-theme="retro"] .card-content > h1:first-child,
:root[data-theme="retro"] .docs-header h1 {
  margin: -1.5rem -1.5rem 1rem;
}

:root[data-theme="retro"] .docs-card h2::after {
  content: "✕";
  display: grid;
  place-items: center;
  width: 1.15rem;
  height: 1rem;
  background: #c0c0c0;
  color: #000000;
  font-size: 0.7rem;
  font-weight: 700;
  box-shadow: inset -1px -1px 0 #404040, inset 1px 1px 0 #ffffff, inset -2px -2px 0 #808080, inset 2px 2px 0 #dfdfdf;
}

/* Drop zone: a sunken white field with a dashed navy border. */
:root[data-theme="retro"] .drop-zone {
  background: #ffffff;
  border: 2px dashed #000078;
  box-shadow: inset 2px 2px 0 #808080, inset -2px -2px 0 #ffffff;
}

:root[data-theme="retro"] .drop-zone:hover,
:root[data-theme="retro"] .drop-zone.is-dragging {
  background: #fffff0;
  border-color: #0f80cd;
}

:root[data-theme="retro"] .drop-icon {
  color: #000078;
}

/* The hero "Welcome" badge becomes a high-contrast blinking pixel sticker
   that sits on the black desktop above the window. */
:root[data-theme="retro"] .hero-eyebrow {
  background: linear-gradient(to right, #000078, 80%, #0f80cd);
  border: 1px solid #000000;
  color: #ffffff;
  font-weight: 700;
  text-transform: uppercase;
  box-shadow: inset -1px -1px 0 #404040, inset 1px 1px 0 #6f6fff;
}

:root[data-theme="retro"] .hero-eyebrow::before {
  content: "★ ";
  color: #ffff66;
  animation: retro-blink 1.1s steps(1, end) infinite;
}

:root[data-theme="retro"] .hero-eyebrow::after {
  content: " ★";
  color: #ffff66;
  animation: retro-blink 1.1s steps(1, end) 0.55s infinite;
}

@keyframes retro-blink {
  50% { opacity: 0; }
}

@media (prefers-reduced-motion: reduce) {
  :root[data-theme="retro"] .hero-eyebrow::before,
  :root[data-theme="retro"] .hero-eyebrow::after {
    animation: none;
  }
}

/* Badges become square chips. */
:root[data-theme="retro"] .badge {
  background: #ffffff;
  color: #000000;
  border: 1px solid #000000;
  box-shadow: inset 1px 1px 0 #808080;
}

/* File / result rows: flat white with a sunken hairline. */
:root[data-theme="retro"] .download-item,
:root[data-theme="retro"] .result-item {
  background: #ffffff;
  color: #000000;
  border: 1px solid #000000;
  box-shadow: inset 1px 1px 0 #dfdfdf, inset -1px -1px 0 #808080;
}

:root[data-theme="retro"] .file-main,
:root[data-theme="retro"] .download-item small,
:root[data-theme="retro"] .result-item code {
  color: #000000;
}

:root[data-theme="retro"] .file-emblem {
  background: #000078;
  color: #ffffff;
  border: 1px solid #000000;
  box-shadow: inset -1px -1px 0 #404040, inset 1px 1px 0 #4a4aff;
}

/* Code blocks use the pixel mono font. */
:root[data-theme="retro"] code,
:root[data-theme="retro"] pre,
:root[data-theme="retro"] pre code {
  font-family: "PixelOperatorMono", ui-monospace, monospace;
  color: #000000;
}

:root[data-theme="retro"] pre {
  background: #ffffff;
  border: 1px solid #000000;
  box-shadow: inset 1px 1px 0 #808080;
}

/* Progress bar: blocky segmented Win98 look. */
:root[data-theme="retro"] .progress {
  background: #ffffff;
  border: 1px solid #000000;
  box-shadow: inset 1px 1px 0 #808080;
}

:root[data-theme="retro"] .progress span {
  background: repeating-linear-gradient(90deg, #000078 0 8px, transparent 8px 10px), #0f80cd;
}

/* Chunky retro scrollbars (WebKit/Blink). */
:root[data-theme="retro"] ::-webkit-scrollbar {
  width: 16px;
  height: 16px;
}

:root[data-theme="retro"] ::-webkit-scrollbar-track {
  background: #dfdfdf;
}

:root[data-theme="retro"] ::-webkit-scrollbar-thumb {
  background: #c0c0c0;
  border: 1px solid #000000;
  box-shadow: inset -1px -1px 0 #808080, inset 1px 1px 0 #ffffff;
}

/* Footer sits on the black desktop: white pixel text + a wink to the old web. */
:root[data-theme="retro"] .site-footer {
  color: #ffffff;
}

:root[data-theme="retro"] .site-footer a,
:root[data-theme="retro"] .footer-links a:not(.button) {
  color: #66ccff;
}

:root[data-theme="retro"] .theme-picker > span {
  color: #ffffff;
}

:root[data-theme="retro"] .site-footer::after {
  content: "✩ Best viewed in 1024×768 ✩";
  font-weight: 700;
}

@media (max-width: 720px) {
  :root[data-theme="retro"] .site-footer::after {
    display: none;
  }
}