/* styles.css - MyOS
   retro terminal-ish desktop theme. everything routes through css variables
   so switching themes in the appearance app restyles basically everything,
   not just the background */

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --font-display: 'IBM Plex Mono', ui-monospace, 'SFMono-Regular', Menlo, monospace;
  --font-body: 'Inter', system-ui, -apple-system, sans-serif;

  /* amber (default theme) */
  --bg: #17140f;
  --bg-alt: #221d15;
  --panel: #1c1811;
  --text: #efe6d3;
  --text-dim: #a79c86;
  --accent: #e7a33e;
  --accent-ink: #17140f;
  --border: #0b0a07;
  --stripe-a: #e7a33e;
  --stripe-b: #b9791f;
  --danger: #c1502e;
  --ok: #7fa65c;
  --bg-image: none;

  /* these get overwritten live by the color pickers in the appearance app */
  --custom-bg1: #17140f;
  --custom-bg2: #221d15;
  --custom-accent: #e7a33e;
  --custom-text: #efe6d3;
}

html, body {
  height: 100%;
}

body {
  width: 100vw;
  overflow: hidden;
  background: var(--bg-image), var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  position: relative;
  transition: background-color 0.35s ease, color 0.35s ease;
}

/* faint scanlines over everything, kind of a CRT thing. very subtle on purpose */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  background: repeating-linear-gradient(
    to bottom,
    rgba(0, 0, 0, 0.1) 0px,
    rgba(0, 0, 0, 0.1) 1px,
    transparent 1px,
    transparent 3px
  );
  mix-blend-mode: overlay;
  opacity: 0.35;
}

*:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}

/* theme: amber */
body.bg-dark {
  --bg: #17140f; --bg-alt: #221d15; --panel: #1c1811;
  --text: #efe6d3; --text-dim: #a79c86;
  --accent: #e7a33e; --accent-ink: #17140f;
  --border: #0b0a07; --stripe-a: #e7a33e; --stripe-b: #b9791f;
  --bg-image: none;
}

/* theme: dusk */
body.bg-sunset {
  --bg: #1b1730; --bg-alt: #241e3d; --panel: #1f1935;
  --text: #ece4f5; --text-dim: #9088ae;
  --accent: #c97fa0; --accent-ink: #1b1730;
  --border: #0f0c1c; --stripe-a: #c97fa0; --stripe-b: #7c6ba8;
  --bg-image: linear-gradient(160deg, rgba(201, 127, 160, 0.1), rgba(27, 23, 48, 0) 55%);
}

/* theme: phosphor (green CRT, forces mono font everywhere) */
body.bg-cyber {
  --bg: #050806; --bg-alt: #0b120d; --panel: #081009;
  --text: #8fffb0; --text-dim: #3f7a52;
  --accent: #39ff7a; --accent-ink: #020402;
  --border: #020402; --stripe-a: #39ff7a; --stripe-b: #12401f;
  --bg-image: none;
  --font-display: 'IBM Plex Mono', 'Courier New', monospace;
  --font-body: 'IBM Plex Mono', 'Courier New', monospace;
}

body.bg-cyber::before { opacity: 0.55; }

/* theme: custom, built live from whatever's picked in the appearance app */
body.bg-custom {
  --bg: var(--custom-bg1);
  --bg-alt: color-mix(in srgb, var(--custom-bg1) 60%, var(--custom-bg2) 40%);
  --panel: var(--custom-bg2);
  --text: var(--custom-text);
  --text-dim: color-mix(in srgb, var(--custom-text) 55%, transparent);
  --accent: var(--custom-accent);
  --accent-ink: var(--custom-bg1);
  --border: color-mix(in srgb, var(--custom-bg1) 70%, black);
  --stripe-a: var(--custom-accent);
  --stripe-b: color-mix(in srgb, var(--custom-accent) 60%, black);
  --bg-image: linear-gradient(160deg, var(--custom-bg2), var(--custom-bg1));
}

/* boot screen */
#boot-screen {
  position: fixed;
  inset: 0;
  background: #050403;
  color: #d9cba8;
  z-index: 99999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  transition: opacity 0.4s ease, transform 0.4s ease;
}

#boot-screen.hidden {
  opacity: 0;
  transform: translateY(-16px);
  pointer-events: none;
}

.boot-term {
  font-family: var(--font-display);
  font-size: 0.85rem;
  line-height: 1.7;
  width: 100%;
  max-width: 420px;
}

.boot-lines div {
  white-space: pre;
  opacity: 0;
  animation: boot-line-in 0.15s ease forwards;
}

@keyframes boot-line-in {
  from { opacity: 0; transform: translateX(-4px); }
  to { opacity: 1; transform: translateX(0); }
}

.boot-cursor {
  display: inline-block;
  font-family: var(--font-display);
  animation: boot-blink 1s step-end infinite;
}

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

/* top bar */
#panel {
  height: 32px;
  background: var(--panel);
  border-bottom: 2px solid var(--accent);
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 10px;
  position: relative;
  z-index: 9999;
  font-family: var(--font-display);
}

.panel-left, .panel-right {
  display: flex;
  align-items: center;
  gap: 6px;
}

.start-btn {
  background: var(--accent);
  color: var(--accent-ink);
  border: none;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.78rem;
  padding: 5px 10px;
  border-radius: 2px;
  cursor: pointer;
  margin-right: 6px;
  letter-spacing: 0.02em;
}

.nav-btn {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 4px 10px;
  border-radius: 2px;
  cursor: pointer;
  font-family: var(--font-display);
  font-size: 0.75rem;
  box-shadow: inset -1px -1px 0 rgba(0, 0, 0, 0.4), inset 1px 1px 0 rgba(255, 255, 255, 0.06);
}

.nav-btn:hover { filter: brightness(1.2); }
.nav-btn:active { box-shadow: inset 1px 1px 0 rgba(0, 0, 0, 0.4); }

#clock-widget {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.03em;
}

/* desktop + icons */
#desktop {
  position: relative;
  width: 100%;
  height: calc(100vh - 32px - 40px);
  padding: 22px;
  display: flex;
  flex-direction: column;
  flex-wrap: wrap;
  gap: 22px;
  align-items: flex-start;
}

.desktop-icon {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  width: 74px;
  cursor: pointer;
  padding: 8px 4px;
  border-radius: 4px;
  user-select: none;
}

.desktop-icon:hover {
  background: rgba(255, 255, 255, 0.08);
}

.icon-img {
  font-size: 1.6rem;
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 4px;
  box-shadow: inset -2px -2px 0 rgba(0, 0, 0, 0.4), inset 2px 2px 0 rgba(255, 255, 255, 0.06);
}

.desktop-icon span {
  font-family: var(--font-display);
  font-size: 0.68rem;
  text-align: center;
  color: var(--text);
  opacity: 0.9;
}

/* windows */
.window {
  position: absolute;
  width: 320px;
  min-height: 210px;
  background: var(--bg-alt);
  border: 2px solid var(--border);
  border-radius: 3px;
  box-shadow: 5px 5px 0 rgba(0, 0, 0, 0.4);
  display: none;
  flex-direction: column;
  overflow: hidden;
}

.window.open { display: flex; }
.window.minimized { display: none; }

/* default spawn positions - felt right after some trial and error */
#about-app { top: 56px; left: 90px; }
#notes-app { top: 110px; left: 440px; }
#calc-app  { top: 84px; left: 760px; width: 250px; }
#todo-app  { top: 250px; left: 440px; }
#theme-app { top: 210px; left: 190px; }

.window-header {
  background: repeating-linear-gradient(
    135deg,
    var(--stripe-a) 0px, var(--stripe-a) 5px,
    var(--stripe-b) 5px, var(--stripe-b) 10px
  );
  padding: 6px 8px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: grab;
  user-select: none;
  border-bottom: 2px solid var(--border);
}

.window-header:active { cursor: grabbing; }

.title {
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  color: var(--accent-ink);
  background: var(--text);
  padding: 2px 8px;
  border-radius: 2px;
}

.win-controls {
  display: flex;
  gap: 4px;
}

.min-btn, .close-btn {
  border: 1px solid var(--border);
  width: 20px;
  height: 20px;
  border-radius: 2px;
  cursor: pointer;
  font-family: var(--font-display);
  font-size: 0.65rem;
  font-weight: bold;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: inset -1px -1px 0 rgba(0, 0, 0, 0.35), inset 1px 1px 0 rgba(255, 255, 255, 0.25);
}

.min-btn { background: var(--text); color: var(--accent-ink); }
.close-btn { background: var(--danger); color: #fff; }

.min-btn:active, .close-btn:active {
  box-shadow: inset 1px 1px 0 rgba(0, 0, 0, 0.35);
}

.window-body {
  padding: 14px;
  flex: 1;
  font-size: 0.88rem;
  line-height: 1.5;
}

.window-body h3 {
  font-family: var(--font-display);
  font-size: 0.95rem;
  margin-bottom: 8px;
}

textarea {
  width: 100%;
  height: 120px;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 10px;
  border-radius: 2px;
  resize: none;
  outline: none;
  font-family: var(--font-body);
  font-size: 0.85rem;
}

.section-label {
  font-family: var(--font-display);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-dim);
  margin-bottom: 8px;
}

.theme-grid {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.theme-choice {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 7px 10px;
  border-radius: 2px;
  text-align: left;
  cursor: pointer;
  font-family: var(--font-display);
  font-size: 0.78rem;
  box-shadow: inset -1px -1px 0 rgba(0, 0, 0, 0.35), inset 1px 1px 0 rgba(255, 255, 255, 0.06);
}

.theme-choice:hover { filter: brightness(1.2); }
.theme-choice:active { box-shadow: inset 1px 1px 0 rgba(0, 0, 0, 0.35); }

/* custom theme builder */
.custom-theme-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.custom-theme-grid label {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-family: var(--font-display);
  font-size: 0.68rem;
  text-transform: uppercase;
  color: var(--text-dim);
}

.custom-theme-grid input[type="color"] {
  width: 100%;
  height: 28px;
  border: 1px solid var(--border);
  border-radius: 2px;
  cursor: pointer;
  background: none;
  padding: 2px;
}

.theme-hint {
  font-size: 0.7rem;
  color: var(--text-dim);
  margin-top: 10px;
}

/* calculator */
.calc-display {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 2px;
  padding: 12px 10px;
  text-align: right;
  font-family: var(--font-display);
  font-size: 1.3rem;
  margin-bottom: 8px;
  overflow-x: auto;
  white-space: nowrap;
}

.calc-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 6px;
}

.calc-btn {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 10px 0;
  border-radius: 2px;
  cursor: pointer;
  font-family: var(--font-display);
  font-size: 0.9rem;
  box-shadow: inset -1px -1px 0 rgba(0, 0, 0, 0.35), inset 1px 1px 0 rgba(255, 255, 255, 0.06);
}

.calc-btn:hover { filter: brightness(1.2); }
.calc-btn:active { box-shadow: inset 1px 1px 0 rgba(0, 0, 0, 0.35); }

.calc-op { color: var(--accent); }

.calc-equals {
  background: var(--accent);
  color: var(--accent-ink);
  font-weight: 700;
}

/* todo app */
.todo-input-row {
  display: flex;
  gap: 6px;
  margin-bottom: 10px;
}

.todo-input-row input {
  flex: 1;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 8px 10px;
  border-radius: 2px;
  outline: none;
  font-family: var(--font-body);
  font-size: 0.85rem;
}

.todo-add-btn {
  background: var(--accent);
  color: var(--accent-ink);
  border: 1px solid var(--border);
  width: 34px;
  border-radius: 2px;
  cursor: pointer;
  font-weight: 700;
  font-size: 1rem;
}

.todo-list {
  list-style: none;
  max-height: 155px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.todo-list li {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg);
  border: 1px solid var(--border);
  padding: 6px 10px;
  border-radius: 2px;
  font-size: 0.83rem;
}

.todo-list li.done span.todo-text {
  text-decoration: line-through;
  color: var(--text-dim);
}

.todo-list li span.todo-text {
  flex: 1;
  word-break: break-word;
}

.todo-list li input[type="checkbox"] {
  accent-color: var(--accent);
}

.todo-list li button {
  background: none;
  border: none;
  color: var(--danger);
  cursor: pointer;
  font-size: 0.85rem;
}

.todo-empty {
  font-family: var(--font-display);
  font-size: 0.75rem;
  color: var(--text-dim);
  padding: 8px 2px;
}

/* context menu + start menu share the same look */
#context-menu, #start-menu {
  position: fixed;
  display: none;
  flex-direction: column;
  background: var(--bg-alt);
  border: 2px solid var(--border);
  border-radius: 3px;
  box-shadow: 4px 4px 0 rgba(0, 0, 0, 0.4);
  z-index: 100000;
  overflow: hidden;
  min-width: 180px;
  font-family: var(--font-display);
}

#context-menu.visible, #start-menu.visible { display: flex; }

#context-menu button, #start-menu button {
  background: none;
  border: none;
  border-bottom: 1px solid var(--border);
  color: var(--text);
  text-align: left;
  padding: 9px 12px;
  cursor: pointer;
  font-size: 0.78rem;
  font-family: var(--font-display);
}

#context-menu button:last-child, #start-menu button:last-child { border-bottom: none; }
#context-menu button:hover, #start-menu button:hover { background: var(--accent); color: var(--accent-ink); }

#start-menu {
  bottom: 46px;
  left: 8px;
}

/* taskbar */
#taskbar {
  height: 40px;
  background: var(--panel);
  border-top: 2px solid var(--accent);
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0 10px;
  position: relative;
  z-index: 9998;
  font-family: var(--font-display);
}

.taskbar-item {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 5px 10px;
  border-radius: 2px;
  cursor: pointer;
  font-size: 0.72rem;
  font-family: var(--font-display);
  box-shadow: inset -1px -1px 0 rgba(0, 0, 0, 0.35), inset 1px 1px 0 rgba(255, 255, 255, 0.06);
}

.taskbar-item.minimized { opacity: 0.55; }
.taskbar-item:hover { filter: brightness(1.2); }

/* scrollbars, kept on theme so they don't look out of place */
.todo-list::-webkit-scrollbar, textarea::-webkit-scrollbar {
  width: 8px;
}
.todo-list::-webkit-scrollbar-thumb, textarea::-webkit-scrollbar-thumb {
  background: var(--accent);
  border-radius: 4px;
}
.todo-list::-webkit-scrollbar-track, textarea::-webkit-scrollbar-track {
  background: var(--bg);
}

/* small screens - not perfect but usable */
@media (max-width: 700px) {
  #desktop { flex-direction: row; flex-wrap: wrap; gap: 14px; padding: 14px; height: calc(100vh - 32px - 40px); }
  .window {
    width: calc(100vw - 28px);
    max-width: 340px;
  }
  #about-app { top: 46px; left: 14px; }
  #notes-app { top: 46px; left: 14px; }
  #calc-app  { top: 46px; left: 14px; width: calc(100vw - 28px); max-width: 280px; }
  #todo-app  { top: 46px; left: 14px; }
  #theme-app { top: 46px; left: 14px; }
  .nav-btn { display: none; }
  #start-menu { left: 6px; }
}