/*
  deskbar.app stylesheet. One file for every page, no build step, no web fonts.

  The site is dark by design, like the bar it shows: the screenshots are dark captures with
  real alpha in their corners, and they sit best on a dark page. `color-scheme: dark` tells
  the browser to draw form controls and scrollbars to match.

  The visual motif is borrowed from the bar itself. Every workspace row on the bar has a
  coloured rail down its left edge, so feature rows, cards and section headings here carry
  the same rail, in the same family of colours (the rail-* classes below).
*/

/* ---- design tokens --------------------------------------------------------------------- */

:root {
  color-scheme: dark;

  /* Page and surfaces: near black with a little indigo in it, taken from the mark. */
  --bg: #07070d;
  --bg-raised: #0e0e1a;
  --surface: rgb(255 255 255 / 0.035);
  --surface-strong: rgb(255 255 255 / 0.06);
  --border: rgb(255 255 255 / 0.08);
  --border-strong: rgb(255 255 255 / 0.14);

  /* Text. --muted still clears 4.5:1 against --bg for body copy. */
  --text: #ecebf5;
  --muted: #a8a6bd;
  --faint: #77758c;

  /* Brand: the mark's indigo-to-violet square and its cyan tile. Amber is the bar's
     hover and "you would land here" ring. */
  --indigo: #4f52d6;
  --violet: #8b5cf6;
  --lilac: #c4b5fd;
  --cyan: #6ee7ff;
  --amber: #f5b544;

  /* Rail colours, picked from the rows in the bar capture. */
  --rail-violet: #8e4fd6;
  --rail-teal: #2f9b7f;
  --rail-amber: #d08a35;
  --rail-blue: #4560d8;
  --rail-rose: #c0507a;
  --rail-cyan: #3fb6d0;

  --radius: 18px;
  --radius-small: 10px;
  --page: 1140px;
  --gutter: 16px;

  /* Segoe UI Variable is what Windows 11 itself uses, which is where every visitor who can
     run Deskbar already is. The rest of the stack covers everyone else. */
  --font: "Segoe UI Variable Text", "Segoe UI", system-ui, -apple-system, "Helvetica Neue",
    Arial, sans-serif;
  --font-display: "Segoe UI Variable Display", "Segoe UI", system-ui, -apple-system,
    "Helvetica Neue", Arial, sans-serif;
  --font-mono: "Cascadia Code", "Cascadia Mono", Consolas, ui-monospace, monospace;
}

/* ---- base ------------------------------------------------------------------------------ */

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  background: var(--bg);
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

@media (prefers-reduced-motion: no-preference) {
  html {
    scroll-behavior: smooth;
  }
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font: 400 1.0625rem/1.65 var(--font);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  position: relative;
}

/* The aurora: two soft colour fields behind the top of every page. Pure gradients, no
   images and no blur filters, so it costs nothing to paint. */
body::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 1100px;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(60% 55% at 78% 8%, rgb(139 92 246 / 0.22), transparent 70%),
    radial-gradient(45% 40% at 12% 0%, rgb(79 82 214 / 0.2), transparent 70%),
    radial-gradient(35% 30% at 60% 40%, rgb(110 231 255 / 0.06), transparent 70%);
}

::selection {
  background: rgb(139 92 246 / 0.45);
  color: #fff;
}

a {
  color: var(--lilac);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

a:hover {
  color: #fff;
}

:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 3px;
  border-radius: 6px;
}

img {
  max-width: 100%;
  height: auto;
}

h1,
h2,
h3 {
  font-family: var(--font-display);
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 0;
}

p {
  margin: 0 0 1em;
}

code,
kbd {
  font-family: var(--font-mono);
  font-size: 0.9em;
}

code {
  background: var(--surface-strong);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.08em 0.4em;
  overflow-wrap: anywhere;
}

/* Glows (the one behind the bar, mostly) reach past the screen edge on purpose. Clipping
   here, on a full-width element, stops them adding a horizontal scroll on phones without
   giving them a hard edge inside the page. */
main {
  display: block;
  overflow-x: clip;
}

.wrap {
  width: 100%;
  max-width: calc(var(--page) + 2 * var(--gutter));
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.skip {
  position: absolute;
  left: -999px;
  top: 8px;
  z-index: 10;
  background: var(--bg-raised);
  padding: 8px 14px;
  border-radius: var(--radius-small);
}

.skip:focus {
  left: 8px;
}

/* ---- header ---------------------------------------------------------------------------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 5;
  background: rgb(7 7 13 / 0.72);
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid var(--border);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  gap: 24px;
  height: 64px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  text-decoration: none;
  font: 650 1.125rem/1 var(--font-display);
  letter-spacing: -0.01em;
}

.brand img {
  width: 30px;
  height: 30px;
}

.site-nav {
  display: flex;
  gap: 22px;
  margin-left: auto;
  font-size: 0.95rem;
}

.site-nav a {
  color: var(--muted);
  text-decoration: none;
}

.site-nav a:hover {
  color: var(--text);
}

/* On a phone only the download link stays in the header; the footer carries the rest. */
@media (max-width: 620px) {
  .site-nav .optional {
    display: none;
  }
}

/* ---- buttons --------------------------------------------------------------------------- */

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 50px;
  padding: 0 24px;
  border-radius: 14px;
  border: 1px solid var(--border-strong);
  background: var(--surface-strong);
  color: var(--text);
  font: 600 1rem/1 var(--font);
  text-decoration: none;
  cursor: pointer;
  transition:
    transform 0.15s ease,
    box-shadow 0.2s ease,
    background 0.2s ease;
}

.button:hover {
  color: #fff;
  background: rgb(255 255 255 / 0.1);
}

.button-primary {
  border-color: rgb(255 255 255 / 0.18);
  background: linear-gradient(135deg, var(--indigo), var(--violet));
  box-shadow:
    inset 0 1px 0 rgb(255 255 255 / 0.25),
    0 10px 30px -8px rgb(139 92 246 / 0.65);
}

.button-primary:hover {
  background: linear-gradient(135deg, #5c5fe6, #9a6dfa);
  box-shadow:
    inset 0 1px 0 rgb(255 255 255 / 0.3),
    0 14px 38px -8px rgb(139 92 246 / 0.8);
}

@media (prefers-reduced-motion: no-preference) {
  .button:hover {
    transform: translateY(-1px);
  }
}

/* The Pro buy button until the checkout exists: visibly a button, visibly not live. */
.button[disabled] {
  cursor: not-allowed;
  color: var(--faint);
  background: transparent;
  border-style: dashed;
  box-shadow: none;
  transform: none;
}

.button svg {
  width: 18px;
  height: 18px;
  flex: none;
}

/* ---- shared bits used on more than one page ------------------------------------------- */

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 22px;
}

.fineprint {
  color: var(--faint);
  font-size: 0.9rem;
  max-width: 40em;
  margin: 0;
}

/* ---- legal and plain pages ------------------------------------------------------------- */

.page {
  max-width: 760px;
  padding-top: 88px;
}

.page h1 {
  font-size: clamp(2.2rem, 5vw, 3.2rem);
  font-weight: 700;
  letter-spacing: -0.04em;
  margin-bottom: 12px;
}

.page .updated {
  color: var(--faint);
  font-size: 0.92rem;
  margin-bottom: 48px;
}

.page h2 {
  font-size: 1.3rem;
  font-weight: 650;
  margin: 44px 0 12px;
  padding-left: 16px;
  border-left: 4px solid var(--rail-violet);
}

.page p,
.page li {
  color: var(--muted);
}

.page strong {
  color: var(--text);
  font-weight: 600;
}

.page ul {
  padding-left: 1.2em;
}

.page li + li {
  margin-top: 8px;
}

.notfound {
  text-align: center;
  padding-top: 140px;
}

.notfound .actions {
  justify-content: center;
}

.notfound p {
  color: var(--muted);
}

/* ---- footer ---------------------------------------------------------------------------- */

.site-footer {
  margin-top: 140px;
  padding: 40px 0 56px;
  border-top: 1px solid var(--border);
  color: var(--faint);
  font-size: 0.92rem;
}

.site-footer .wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 18px 40px;
  justify-content: space-between;
}

.site-footer p {
  margin: 0;
  max-width: 34em;
}

.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
}

.site-footer a {
  color: var(--muted);
  text-decoration: none;
}

.site-footer a:hover {
  color: var(--text);
}