@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@300;400;700&family=Manrope:wght@400;700&display=swap');

:root {
  /* Stitch Design System Colors */
  --color-background: #0e0e13;
  --color-surface: #0e0e13;
  --color-surface-container-low: #131319;
  --color-surface-container: #19191f;
  --color-surface-container-high: #1f1f26;
  --color-surface-container-highest: #25252d;
  --color-primary: #8ff5ff;
  --color-primary-container: #00eefc;
  --color-primary-dim: #00deec;
  --color-secondary: #ff6b9b;
  --color-tertiary: #f3ffca;
  --color-on-background: #f9f5fd;
  --color-outline-variant: #48474d;
  --color-on-primary: #005d63;
  --color-on-primary-fixed-variant: #005e64;
  --color-inverse-on-surface: #55545b;

  /* Spacing */
  --spacing-1: 0.25rem;
  --spacing-2: 0.5rem;
  --spacing-4: 1rem;
  --spacing-6: 1.5rem;
  --spacing-8: 2rem;
  --spacing-12: 3rem;
}

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

*:focus {
  outline: none;
}

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
}

body {
  background-color: var(--color-background);
  color: var(--color-on-background);
  font-family: 'Space Grotesk', sans-serif;
  font-size: 16px;
  line-height: 1.5;
}

/* App container */
.app-container {
  user-select: none;
  display: flex;
  flex-direction: column;
  max-width: 900px;
  margin: 0 auto;
  height: 100%;
  background-color: var(--color-background);
}

/* Header */
.app-header {
  background-color: var(--color-background);
  padding: var(--spacing-6);
  border-bottom: none;
  z-index: 50;
  flex-shrink: 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--spacing-8);
}

.header-back {
  font-family: 'Manrope', sans-serif;
  font-size: 0.8rem;
  color: var(--color-outline-variant);
  text-decoration: none;
  transition: color 0.2s ease;
  white-space: nowrap;
}

.header-back:hover {
  color: var(--color-primary);
}

.header-title {
  font-size: 1.5rem;
  font-weight: 900;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-primary);
  font-family: 'Space Grotesk', sans-serif;
  margin: 0;
  user-select: none;
}

.header-actions {
  display: flex;
  gap: var(--spacing-4);
  margin-left: auto;
}

.header-button {
  background: none;
  border: none;
  color: var(--color-outline-variant);
  cursor: pointer;
  padding: var(--spacing-2);
  transition: color 0.2s ease;
  font-size: 1.5rem;
}

.header-button:hover {
  color: var(--color-secondary);
}

/* Main content area */
.main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  padding: var(--spacing-6);
  gap: var(--spacing-6);
  overflow: hidden;
}

/* HUD area */
.hud-wrapper {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  gap: var(--spacing-4) var(--spacing-8);
  width: 100%;
  flex-shrink: 0;
  justify-content: space-between;
  align-items: flex-end;
}

.hud-section {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-4);
}

.hud-label {
  font-family: 'Manrope', sans-serif;
  font-size: 0.625rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--color-outline-variant);
  margin: 0;
}

.hud-value {
  font-size: 1.5rem;
  font-weight: 900;
  font-family: 'Space Grotesk', sans-serif;
  margin: 0;
  font-variant-numeric: tabular-nums;
}

.hud-value.primary {
  color: var(--color-primary);
  text-shadow: 0 0 10px rgba(143, 245, 255, 0.6);
}

.hud-value.default {
  color: var(--color-on-background);
}

/* Lives pips */
.lives-container {
  display: flex;
  gap: var(--spacing-2);
  align-items: center;
}

.lives-pip {
  width: 1rem;
  height: 1rem;
  background-color: var(--color-tertiary);
  border: none;
  border-radius: 0;
}

.lives-pip.empty {
  background-color: rgba(243, 255, 202, 0.2);
}

/* Canvas wrapper */
.canvas-wrapper {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 0;
  min-width: 0;
  background-color: var(--color-background);
  position: relative;
}

.canvas-container {
  position: relative;
  width: 100%;
  height: 100%;
  background-color: var(--color-surface-container-low);
  box-shadow: 0 0 50px rgba(0, 0, 0, 0.5);
  border-radius: 0;
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
}

/* Grid pattern for canvas background */
.canvas-grid {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: radial-gradient(circle, var(--color-outline-variant) 1px, transparent 1px);
  background-size: 32px 32px;
  opacity: 0.2;
  pointer-events: none;
  border-radius: 0;
}

canvas {
  position: relative;
  z-index: 1;
  display: block;
  border-radius: 0;
  max-width: 100%;
  max-height: 100%;
  /* Prevent extreme stretching on ultra-wide viewports */
  width: auto;
  height: auto;
}

/* Canvas fallback message */
.canvas-fallback {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  color: var(--color-outline-variant);
  font-family: 'Manrope', sans-serif;
  z-index: 10;
}

.canvas-fallback h3 {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-4);
  color: var(--color-on-background);
}

/* Buttons */
.button-group {
  display: flex;
  gap: var(--spacing-4);
  justify-content: center;
  padding: var(--spacing-4);
}

.btn {
  padding: var(--spacing-4) var(--spacing-8);
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border: none;
  border-radius: 0;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-primary {
  background-color: var(--color-primary-container);
  color: var(--color-on-primary);
  box-shadow: 0 0 20px rgba(0, 238, 252, 0.3);
}

.btn-primary:hover {
  background-color: var(--color-primary);
  color: var(--color-on-primary-fixed-variant);
}

.btn-primary:active {
  transform: scale(0.98);
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-primary);
}

.btn-secondary:hover {
  background-color: rgba(143, 245, 255, 0.1);
}

/* Error state */
.error-state {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  height: 100%;
  gap: var(--spacing-6);
}

.error-message {
  max-width: 500px;
  text-align: center;
  font-family: 'Manrope', sans-serif;
  color: var(--color-outline-variant);
}

.error-message h2 {
  color: var(--color-secondary);
  font-size: 1.5rem;
  margin-bottom: var(--spacing-4);
}

/* Responsive layout for smaller screens */
@media (max-width: 768px) {
  .app-header {
    padding: var(--spacing-4);
    gap: var(--spacing-4);
  }

  .header-title {
    font-size: 1.25rem;
  }

  .main-content {
    padding: var(--spacing-4);
    gap: var(--spacing-4);
    max-width: 100%;
  }

  .canvas-wrapper {
    min-height: 300px;
  }

  .hud-value {
    font-size: 1.25rem;
  }
}

@media (max-width: 480px) {
  .app-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .header-actions {
    align-self: flex-end;
  }

  .main-content {
    padding: var(--spacing-2);
    gap: var(--spacing-4);
  }

  .hud-wrapper {
    flex-direction: row;
    flex-wrap: wrap;
    gap: var(--spacing-4);
  }

  .hud-section {
    flex: 1 1 45%;
    min-width: 150px;
  }

  .canvas-wrapper {
    min-height: 250px;
  }

  .hud-value {
    font-size: 1rem;
  }

  .btn {
    padding: var(--spacing-2) var(--spacing-4);
    font-size: 0.75rem;
  }
}

/* Very small viewports (< 320px) */
@media (max-width: 319px) {
  .app-header {
    padding: var(--spacing-2);
    gap: var(--spacing-2);
  }

  .header-title {
    font-size: 1rem;
    letter-spacing: 0.05em;
  }

  .main-content {
    flex-direction: column;
    padding: var(--spacing-2);
    gap: var(--spacing-2);
  }

  .hud-wrapper {
    flex-direction: column;
    gap: var(--spacing-2);
  }

  .hud-section {
    width: 100%;
  }

  .canvas-wrapper {
    min-height: 200px;
  }

  .hud-value {
    font-size: 0.875rem;
  }

  .btn {
    padding: var(--spacing-1) var(--spacing-2);
    font-size: 0.625rem;
  }
}

/* Utility classes */
.text-center {
  text-align: center;
}

.mt-4 {
  margin-top: var(--spacing-4);
}

.invisible {
  display: none;
}

/* Controls help */
.controls-help {
  padding: var(--spacing-4) 0;
}

.controls-title {
  font-family: 'Manrope', sans-serif;
  font-size: 0.625rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--color-outline-variant);
  margin-bottom: var(--spacing-2);
}

.controls-grid {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--spacing-1) var(--spacing-4);
  align-items: baseline;
}

.controls-key {
  font-family: 'Manrope', sans-serif;
  font-size: 0.6875rem;
  color: var(--color-primary);
  white-space: nowrap;
}

.controls-desc {
  font-family: 'Manrope', sans-serif;
  font-size: 0.6875rem;
  color: var(--color-outline-variant);
}

/* Start/restart game overlay on canvas */
.game-overlay {
  position: absolute;
  inset: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: rgba(14, 14, 19, 0.7);
}

.game-overlay-btn {
  padding: var(--spacing-6) var(--spacing-12);
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.25rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  border: none;
  border-radius: 0;
  cursor: pointer;
  background-color: var(--color-primary-container);
  color: var(--color-on-primary);
  box-shadow: 0 0 30px rgba(0, 238, 252, 0.4);
  transition: all 0.2s ease;
  -webkit-tap-highlight-color: transparent;
}

.game-overlay-btn:hover {
  background-color: var(--color-primary);
  color: var(--color-on-primary-fixed-variant);
}

.game-overlay-btn:active {
  transform: scale(0.96);
}

.game-overlay-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-6);
}

.overlay-controls {
  display: grid;
  grid-template-columns: auto auto;
  gap: var(--spacing-1) var(--spacing-4);
  align-items: baseline;
}

.overlay-hint {
  font-family: 'Manrope', sans-serif;
  font-size: 0.75rem;
  color: var(--color-primary);
  white-space: nowrap;
  text-align: right;
}

.overlay-hint-desc {
  font-family: 'Manrope', sans-serif;
  font-size: 0.75rem;
  color: var(--color-outline-variant);
}

/* Desktop: has fine pointer (mouse/trackpad) — hide mobile-only elements */
@media (pointer: fine) {
  .mobile-only {
    display: none;
  }
}

/* Mobile: coarse pointer only (no fine pointer) — hide desktop-only elements */
@media not (pointer: fine) {
  .desktop-only {
    display: none;
  }
}

/* Narrow viewport / portrait: remove max-width constraint */
@media (max-width: 900px) {
  .app-container {
    max-width: 100%;
  }
}

/* Portrait mobile: compact single-row HUD */
@media not (pointer: fine) and (orientation: portrait) {
  .app-header {
    padding: var(--spacing-1) var(--spacing-2);
    gap: var(--spacing-2);
  }

  .header-title {
    font-size: 0.875rem;
    letter-spacing: 0.05em;
  }

  .main-content {
    padding: var(--spacing-1) var(--spacing-2);
    gap: var(--spacing-1);
  }

  .hud-wrapper {
    flex-wrap: nowrap;
    gap: 0;
    justify-content: space-between;
  }

  .hud-label {
    font-size: 0.45rem;
    letter-spacing: 0.05em;
    white-space: nowrap;
  }

  .hud-value {
    font-size: 0.7rem;
  }

  .hud-section {
    gap: 0;
    min-width: 0;
    flex-shrink: 1;
  }

  .lives-container {
    gap: 2px;
  }

  .lives-pip {
    width: 0.4rem;
    height: 0.4rem;
  }
}