/*
 * 7GUIs Shared Dark Theme
 * Extracted from rescript-7guis/src/index.css
 * Applied to Elm and PureScript implementations via element-level styles
 */

:root {
  /* Colors */
  --color-bg: #1a1a1a;
  --color-card: #2a2a2a;
  --color-input: #333;
  --color-border: #444;
  --color-card-border: #383838;
  --color-card-border-hover: #f59e0b;
  --color-card-hover: #303030;
  --color-button: #444;
  --color-button-hover: #555;
  --color-button-active: #4a4a4a;
  --color-text: #fff;
  --color-text-muted: #888;
  --color-accent: #f59e0b;

  /* Spacing */
  --spacing-sm: 1rem;
  --spacing-md: 2.5rem;
  --spacing-lg: 3rem;
  --spacing-xl: 5rem;

  /* Sizing */
  --control-height: 4rem;
  --input-width: 150px;
  --radius: 4px;
  --radius-lg: 8px;
}

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

body {
  font-family: system-ui, -apple-system, sans-serif;
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  background: var(--color-bg);
  color: var(--color-text);
}

/* === Element-level styles (auto-apply to Elm/PureScript) === */

h1 {
  font-size: 2.5rem;
  font-weight: 600;
  color: var(--color-accent);
  letter-spacing: 0.05em;
}

button {
  font-family: inherit;
  font-size: 2rem;
  color: var(--color-text);
  background: var(--color-button);
  border: none;
  padding: 0 var(--spacing-md);
  height: var(--control-height);
  border-radius: var(--radius);
  cursor: pointer;
}

button:hover {
  background: var(--color-button-hover);
}

button:active {
  background: var(--color-button-active);
}

button:focus {
  outline: 1px solid var(--color-accent);
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

input, select {
  font-family: 'Consolas', monospace;
  font-size: 2rem;
  color: var(--color-text);
  background: var(--color-input);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 0 var(--spacing-sm);
  width: var(--input-width);
  height: var(--control-height);
  text-align: right;
}

input:focus, select:focus {
  outline: 1px solid var(--color-accent);
}

input:disabled, select:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

input[type="range"] {
  height: auto;
  padding: 0;
  background: transparent;
  border: none;
  accent-color: var(--color-accent);
}

input[type="range"]:focus {
  outline: none;
}

label {
  font-size: 1.2rem;
  color: var(--color-text);
}

meter {
  width: 100%;
  height: 1.5rem;
  appearance: none;
  accent-color: var(--color-accent);
  background: var(--color-border);
  border-radius: var(--radius);
  border: none;
  overflow: hidden;
}

meter::-webkit-meter-bar {
  background: var(--color-border);
  border-radius: var(--radius);
  border: none;
  height: 100%;
}

meter::-webkit-meter-optimum-value {
  background: var(--color-accent);
  border-radius: var(--radius);
  height: 100%;
}

meter::-moz-meter-bar {
  background: var(--color-accent);
  border-radius: var(--radius);
}

table {
  border-collapse: collapse;
  width: 100%;
}

th, td {
  padding: 0.5rem 1rem;
  border: 1px solid var(--color-border);
  text-align: left;
}

th {
  background: var(--color-card);
}

a {
  color: var(--color-accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

code {
  color: var(--color-text-muted);
  font-size: 1.1rem;
}

hr {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: 1.5rem 0;
}

/* === Index page (task listing) === */

.index-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-lg);
  padding-top: 3rem;
}

.index-title {
  font-size: 3rem;
  font-weight: 700;
  color: var(--color-accent);
  letter-spacing: 0.05em;
}

.index-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-md);
}

/* === App container (Elm/PureScript auto-centering) === */

#app {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-md);
  text-align: center;
}

/* === Class-based styles (shared across implementations) === */

.task-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-md);
}

.task-title {
  font-size: 2.5rem;
  font-weight: 600;
  color: var(--color-accent);
  letter-spacing: 0.05em;
}

.card {
  background: var(--color-card);
  padding: var(--spacing-lg) var(--spacing-xl);
  border-radius: var(--radius-lg);
  text-decoration: none;
  color: var(--color-text);
  font-size: 1.5rem;
  font-weight: 500;
  text-align: center;
  min-width: 220px;
  transition: background 0.15s ease, transform 0.15s ease;
  border: 1px solid var(--color-card-border);
}

.card:hover {
  background: var(--color-card-hover);
  text-decoration: none;
}

.card--interactive:hover {
  border-color: var(--color-card-border-hover);
}

.card--disabled {
  opacity: 0.4;
  cursor: not-allowed;
  pointer-events: none;
}

.back-link {
  position: fixed;
  top: var(--spacing-md);
  left: var(--spacing-md);
  color: var(--color-text);
  text-decoration: none;
  font-size: 1.5rem;
}

.back-link:hover {
  color: var(--color-accent);
}

/* === Counter === */

.counter-controls {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.counter-display {
  user-select: none;
  cursor: default;
}

.counter-display:focus {
  outline: none;
}

/* === Temperature Converter === */

.temp-converter {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.temp-converter > span {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.temp-label {
  font-size: 1.5rem;
  color: var(--color-text);
}

.temp-equals {
  font-size: 1.5rem;
  color: var(--color-text-muted);
}

.error-section {
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.3);
  border-left: 4px solid #ef4444;
  color: #f87171;
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius);
  font-size: 1.1rem;
}

.error-section--hidden {
  visibility: hidden;
}

.error-text {
  color: #f87171;
  margin-left: 0.25rem;
}

/* === Flight Booker === */

.flight-booker {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.flight-booker input,
.flight-booker select {
  width: 100%;
  text-align: center;
}

.flight-booker button {
  width: 100%;
}

.flight-select {
  cursor: pointer;
}

.input--disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.input--invalid {
  border-color: #ef4444;
}

.input--invalid:focus {
  outline-color: #ef4444;
}

/* === Timer === */

.card.timer {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  min-width: 550px;
}

.timer-row {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  width: 100%;
}

.timer-label {
  color: var(--color-text-muted);
}

.timer-progress {
  flex: 1;
  height: 1.5rem;
  background: var(--color-border);
  border-radius: var(--radius);
  border: none;
}

.timer-progress::-webkit-progress-bar {
  background: var(--color-border);
  border-radius: var(--radius);
}

.timer-progress::-webkit-progress-value {
  background: var(--color-accent);
  border-radius: var(--radius);
}

.timer-progress::-moz-progress-bar {
  background: var(--color-accent);
  border-radius: var(--radius);
}

.timer-elapsed {
  font-family: 'Consolas', monospace;
  font-size: 2rem;
}

input.timer-slider {
  flex: 1;
  height: 1.5rem;
  cursor: pointer;
  appearance: none;
  background: var(--color-border);
  border-radius: var(--radius);
}

.timer-slider::-webkit-slider-thumb {
  width: 1.5rem;
  height: 1.5rem;
  background: var(--color-accent);
  border-radius: 50%;
  appearance: none;
}

.timer-slider::-moz-range-thumb {
  width: 1.5rem;
  height: 1.5rem;
  background: var(--color-accent);
  border-radius: 50%;
  border: none;
}

.timer button {
  width: 100%;
}

/* === CRUD === */

.crud.card {
  text-align: left;
  padding: 1.5rem;
}

.crud-columns {
  display: flex;
  gap: 1.5rem;
}

.crud-col-left,
.crud-col-right {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.crud-label {
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.crud-input {
  font-family: "Consolas", monospace;
  font-size: 1rem;
  color: var(--color-text);
  background: var(--color-input);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 0.45rem 0.6rem;
  width: 100%;
  height: auto;
  text-align: left;
}

.crud-input:focus {
  outline: 1px solid var(--color-accent);
}

.crud-field {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.crud-listbox {
  min-height: 160px;
  background: var(--color-input);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 0.25rem;
  overflow-y: auto;
}

/* Override global select styles when used as crud-listbox */
select.crud-listbox {
  width: 100%;
  height: auto;
  text-align: left;
  font-size: 1rem;
  color: var(--color-text);
}

select.crud-listbox option {
  padding: 0.35rem 0.5rem;
}

.crud-listbox:focus {
  outline: 1px solid var(--color-accent);
}

.crud-listbox-item {
  font-family: "Consolas", monospace;
  font-size: 1rem;
  padding: 0.35rem 0.5rem;
  border-radius: 3px;
  cursor: pointer;
}

.crud-listbox-item:hover {
  background: var(--color-border);
}

.crud-listbox-item--selected {
  background: var(--color-border);
  color: var(--color-text);
}

.crud-listbox-item--selected:hover {
  background: var(--color-border);
}

.crud-listbox:focus-within .crud-listbox-item--selected {
  background: var(--color-accent);
  color: var(--color-bg);
}

.crud-listbox:focus-within .crud-listbox-item--selected:hover {
  background: var(--color-accent);
  color: var(--color-bg);
}

.crud-buttons {
  display: flex;
  gap: 0.5rem;
  margin-top: 1.3rem;
}

.crud-buttons > button {
  flex: 1;
  font-size: 0.95rem;
  height: auto;
  padding: 0.45rem 0.75rem;
}

/* === Circle Drawer === */

.circle-drawer {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  max-width: 600px;
}

.circle-drawer-toolbar {
  display: flex;
  justify-content: center;
  gap: 1rem;
}

.circle-drawer-svg-container {
  position: relative;
  height: 400px;
  background-color: var(--color-input);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}

.circle-drawer-svg {
  width: 100%;
  height: 100%;
}

.circle-drawer-popup {
  position: absolute;
  transform: translate(-50%, calc(-100% - 12px));
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  padding: 1rem;
  border-radius: var(--radius);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  min-width: 200px;
  z-index: 10;
}

.circle-drawer-popup-label {
  text-align: center;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.circle-drawer-popup-close {
  position: absolute;
  top: 6px;
  right: 8px;
  background: none;
  border: none;
  color: var(--color-text-muted);
  cursor: pointer;
  font-size: 0.85rem;
  padding: 2px 4px;
  border-radius: var(--radius);
  opacity: 0.6;
  transition: opacity 0.15s, background-color 0.15s;
}

.circle-drawer-popup-close:hover {
  opacity: 1;
  background-color: var(--color-border);
}

.circle-drawer-slider {
  cursor: pointer;
  height: 6px;
  background: var(--color-border);
  border-radius: 3px;
  appearance: none;
}

.circle-drawer-slider::-webkit-slider-thumb {
  appearance: none;
  width: 16px;
  height: 16px;
  background: var(--color-accent);
  border-radius: 50%;
}

.circle-drawer-slider::-moz-range-thumb {
  width: 16px;
  height: 16px;
  background: var(--color-accent);
  border-radius: 50%;
  cursor: pointer;
  border: none;
}

/* === Mobile responsive === */
@media (max-width: 768px) {
  body {
    display: block;
    padding: var(--spacing-sm);
  }

  .task-container {
    min-height: calc(100vh - 2 * var(--spacing-sm));
    display: flex;
    flex-direction: column;
    justify-content: center;
  }

  .index-grid {
    grid-template-columns: 1fr;
  }

  h1, .task-title {
    font-size: 2rem;
    text-align: center;
  }

  .card {
    width: 100%;
    min-width: auto;
    padding: var(--spacing-md) var(--spacing-lg);
  }

  .back-link {
    top: var(--spacing-sm);
    left: var(--spacing-sm);
    font-size: 1.2rem;
  }

  /* Counter mobile */
  .counter-controls {
    flex-direction: column;
    gap: 1rem;
  }

  .counter-controls input,
  .counter-controls button {
    width: 100%;
  }

  .counter-controls input {
    text-align: center;
  }

  .temp-converter {
    flex-direction: column;
  }

  .temp-converter > span {
    flex-direction: column;
    width: 100%;
  }

  .temp-converter input {
    width: 100%;
    text-align: center;
  }

  .temp-converter > .temp-equals {
    display: none;
  }

  /* Flight Booker mobile */
  .flight-booker button {
    font-size: 1.5rem;
  }

  /* Timer mobile */
  .card.timer {
    min-width: auto;
  }

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

  .timer-label {
    font-size: 1.25rem;
  }

  .timer-progress,
  .timer-slider {
    width: 100%;
    flex: none;
  }

  .timer-elapsed {
    font-size: 1.75rem;
  }

  .timer button {
    font-size: 1.5rem;
  }

  /* CRUD mobile */
  .card.crud {
    padding: 1rem 1.25rem;
  }

  .crud-columns {
    flex-direction: column;
    gap: 1rem;
  }

  .crud-listbox {
    min-height: 140px;
  }

  .crud-buttons {
    flex-direction: column;
    margin-top: 2rem;
  }

  /* Circle Drawer mobile */
  .circle-drawer-svg-container {
    height: 300px;
  }

  .circle-drawer-toolbar {
    gap: 0.5rem;
  }

  .circle-drawer-toolbar button {
    font-size: 1.2rem;
    padding: 0.5rem 1rem;
    height: auto;
    min-width: 80px;
    flex: 1;
  }
}