:root {
  --bg: #000000;
  --bg-secondary: #111111;
  --text-primary: #e0e0e0;
  --text-secondary: #555555;
  --text-dimmed: #666666;
  --text-dimmed-darker: #444444;
  --text-rest: #aa7777;
  --border-light: #333333;
  --border-dark: #222222;
  --color-accent: rgba(0, 255, 65, 1);
  --error-bg: #cc0000;
  --error-text: #ffffff;
  --error-border: #990000;
  --syntax-header: #00ff41;
  --syntax-comment: #666666;
  --syntax-exercise: #e0e0e0;
  --syntax-duration: #00bfff;
  --syntax-modifier: #ffa500;
  --syntax-section: #00bfff;
}

@keyframes pulse-neon-border {
  0%,
  100% {
    border-color: rgba(0, 255, 65, 0.3);
  }
  50% {
    border-color: rgba(0, 255, 65, 0.05);
  }
}

@font-face {
  font-family: "DSEG7";
  src: url("/workout-timer/fonts/dseg7-classic-latin-700-normal.woff2")
    format("woff2");
  font-weight: bold;
  font-style: normal;
}

body {
  touch-action: manipulation;
  background-color: var(--bg);
  color: var(--text-primary);
  font-family: "IBM Plex Mono", "Courier New", Courier, monospace;
  margin: 0;
  height: 100dvh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* --- ERROR BANNER --- */
#error-banner {
  display: none;
  background: var(--error-bg);
  color: var(--error-text);
  padding: 12px 20px;
  text-align: center;
  font-size: 0.9rem;
  border-bottom: 1px solid var(--error-border);
}

/* --- EDITOR VIEW --- */
#editor-view {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.editor-container {
  position: relative;
  flex-grow: 1;
  border-radius: 4px;
  border: 1px solid var(--border-light);
  background: var(--bg-secondary);
}

.editor-container textarea,
.editor-container .highlight-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  padding: 15px;
  margin: 0;
  border: none;
  font-family: inherit;
  font-size: 16px;
  line-height: 1.4;
  white-space: pre-wrap;
  word-wrap: break-word;
  overflow-y: auto;
  box-sizing: border-box;
}

.editor-container textarea {
  color: transparent;
  caret-color: var(--color-accent);
  background: transparent;
  resize: none;
  z-index: 2;
  outline: none;
  -webkit-appearance: none;
}

.editor-container textarea::placeholder {
  color: var(--text-dimmed);
  opacity: 0.5;
}

.editor-container .highlight-overlay {
  z-index: 1;
  color: var(--text-primary);
  pointer-events: none;
}

/* Syntax highlighting */
.syntax-header {
  color: var(--syntax-header);
  font-weight: bold;
}
.syntax-section {
  color: var(--syntax-section);
  font-weight: bold;
}
.syntax-comment {
  color: var(--syntax-comment);
  font-style: italic;
}
.syntax-exercise {
  color: var(--syntax-exercise);
}
.syntax-duration {
  color: var(--syntax-duration);
  font-weight: 600;
}
.syntax-modifier {
  color: var(--syntax-modifier);
  font-style: italic;
}
.syntax-separator {
  color: var(--text-dimmed);
}
.syntax-error {
  text-decoration: wavy underline;
  text-decoration-color: #ff4444;
}
.syntax-rest {
  color: var(--text-rest);
  font-style: italic;
}

/* Editor view: mirror workout layout */
.editor-elapsed {
  color: var(--text-primary);
  font-size: 0.9rem;
  font-variant-numeric: tabular-nums;
  font-family: "DSEG7", monospace;
}

#editor-view .main-display {
  display: flex;
  padding: 0;
  justify-items: stretch;
  text-align: left;
}

#editor-view .editor-container {
  flex-grow: 1;
  margin: 0;
  border-radius: 0;
  border: none;
  border-left: none;
  border-right: none;
}

#editor-view .controls {
  border-top: 1px solid var(--border-light);
}

#start-btn {
  background: var(--color-accent);
  color: var(--bg);
  border: none;
  text-transform: uppercase;
}

/* --- WORKOUT VIEW --- */
#workout-view {
  display: none;
  flex-direction: column;
  height: 100%;
}

.top-bar {
  padding: 15px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border-dark);
}

.top-bar-btn {
  font-family: inherit;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  padding: 10px 16px;
  text-transform: uppercase;
  border-radius: 4px;
  letter-spacing: 0.5px;
  text-align: center;
  min-width: 11ch;
}

.stop-btn {
  background: var(--error-bg);
  border: 1px solid var(--error-border);
  color: var(--error-text);
}

.stop-btn:active {
  background: var(--error-border);
  border-color: var(--error-bg);
}

.stop-btn:disabled {
  background: var(--bg-secondary);
  border-color: var(--border-light);
  color: var(--text-dimmed);
  cursor: not-allowed;
  opacity: 0.5;
}

#elapsed-time {
  color: var(--text-primary);
  font-size: 0.9rem;
  font-family: "DSEG7", monospace;
  line-height: 1.2;
}

.mute-btn {
  background: var(--bg-secondary);
  border: 1px solid var(--border-light);
  color: var(--text-primary);
}

/* --- SECTION INDICATOR --- */
#section-indicator {
  display: block;
  text-align: center;
  padding: 6px 20px;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--color-accent);
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-dark);
}

/* --- MAIN DISPLAY --- */
.main-display {
  flex-grow: 1;
  display: grid;
  grid-template-rows: 1.5fr auto 1fr;
  justify-items: center;
  text-align: center;
  position: relative;
  padding: 0 20px;
}

.main-display[data-tappable="true"] {
  cursor: pointer;
  border: 3px solid var(--color-accent);
  animation: pulse-neon-border 2s ease-in-out infinite;
}

#exercise-status {
  display: flex;
  flex-direction: column;
  justify-content: space-evenly;
  height: 100%;
  font-size: 1.4rem;
  font-weight: bold;
  color: var(--text-primary);
  text-transform: uppercase;
  letter-spacing: 2px;
  padding: 0 20px;
  line-height: 1.3;
  margin: 0;
  align-self: center;
}

#exercise-name {
  font-size: 2rem;
  color: var(--text-primary);
  font-weight: bold;
  display: none;
}

#exercise-get-ready {
  font-size: 1rem;
  color: var(--text-dimmed);
  font-weight: normal;
  display: none;
}

#exercise-detail {
  font-size: 1rem;
  color: var(--text-dimmed);
  font-weight: normal;
  display: none;
}

#exercise-get-ready:not(:empty),
#exercise-name:not(:empty),
#exercise-detail:not(:empty) {
  display: block;
}

#timer-display {
  font-family: "DSEG7", monospace;
  font-weight: normal;
  line-height: 1;
  font-variant-numeric: tabular-nums;
  font-size: 28vw;
  white-space: nowrap;
  max-width: 100%;
}

#tap-indicator {
  color: var(--text-dimmed);
  font-size: 1rem;
  letter-spacing: 1px;
  align-self: center;
}

#progress-bar-container {
  height: 6px;
  background: var(--border-dark);
}

#progress-bar {
  height: 100%;
  background: var(--color-accent);
  width: 0%;
  transition: width 0.3s linear;
}

/* --- CONTROLS --- */
.controls {
  display: grid;
  grid-template-columns: 1fr 2fr 1fr;
  gap: 10px;
  padding: 20px;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-light);
  padding-bottom: max(20px, env(safe-area-inset-bottom));
}

.control-btn {
  background: transparent;
  border: 1px solid var(--border-light);
  color: var(--text-primary);
  padding: 15px 0;
  font-family: inherit;
  font-size: 1rem;
  font-weight: bold;
  cursor: pointer;
  border-radius: 4px;
  text-transform: uppercase;
}

.control-btn:active {
  background: var(--border-light);
}

.control-btn:disabled {
  border-color: var(--border-dark);
  color: var(--text-dimmed);
  cursor: not-allowed;
  opacity: 0.4;
}

#play-pause-btn {
  background: var(--color-accent);
  color: var(--bg);
  border: none;
  text-transform: uppercase;
}

#play-pause-btn:disabled {
  background: var(--text-secondary);
  color: var(--border-light);
  cursor: not-allowed;
  opacity: 0.6;
}

/* --- STATE STYLES --- */
.state-paused {
  opacity: 0.4;
}

.state-paused #timer-display,
.state-paused #exercise-status,
.state-paused #exercise-detail,
.state-paused #tap-indicator {
  color: var(--text-dimmed);
}

.state-transition #timer-display {
  color: var(--text-dimmed-darker);
}

.state-transition #exercise-status {
  color: var(--text-primary);
}

.state-done #timer-display {
  color: var(--text-dimmed);
  opacity: 0.3;
}

/* --- RESPONSIVE TIMER SIZING (portrait) --- */
#timer-display[data-length="1"],
#timer-display[data-length="2"] {
  font-size: clamp(10rem, 45vw, 260px);
}

#timer-display[data-length="3"] {
  font-size: clamp(8rem, 30vw, 200px);
}

#timer-display[data-length="4"],
#timer-display[data-length="5"] {
  font-size: clamp(6rem, 20vw, 160px);
}

/* ============================
   DESKTOP: limit max width
   ============================ */
@media (min-width: 768px) and (orientation: landscape) {
  body {
    max-width: 500px;
    margin: 0 auto;
    border-left: 1px solid var(--border-dark);
    border-right: 1px solid var(--border-dark);
  }

  #timer-display {
    max-width: 100%;
    overflow: hidden;
  }

  #timer-display[data-length="4"],
  #timer-display[data-length="5"] {
    font-size: clamp(4rem, 16vw, 120px);
  }

  #timer-display[data-length="3"] {
    font-size: clamp(6rem, 24vw, 160px);
  }
}

/* ============================
   MOBILE LANDSCAPE
   Targets phones in landscape via short viewport height
   ============================ */
@media (max-height: 500px) and (orientation: landscape) {
  body {
    max-width: none;
    margin: 0;
    border: none;
  }

  /* Tighten top bar */
  .top-bar {
    padding: 6px 16px;
  }

  .top-bar-btn {
    padding: 8px 14px;
    font-size: 0.85rem;
    min-width: auto;
  }

  #elapsed-time {
    font-size: 1rem;
  }

  /* Compact section indicator */
  #section-indicator {
    padding: 4px 16px;
    font-size: 0.85rem;
  }

  /* --- Core: side-by-side main display (workout view only) --- */
  #workout-view .main-display {
    display: grid;
    grid-template-rows: 1fr 1fr;
    grid-template-columns: auto 1fr;
    grid-template-areas:
      "info  timer"
      "next  timer";
    align-items: center;
    padding: 0 24px;
    gap: 0;
  }

  /* Left top: exercise info */
  #exercise-status {
    grid-area: info;
    font-size: 1.4rem;
    letter-spacing: 1px;
    padding: 0 14px;
    text-align: left;
    justify-content: flex-end;
    align-self: end;
    padding-bottom: 10px;
  }

  #exercise-name {
    font-size: 1.9rem;
  }

  #exercise-get-ready {
    font-size: 1.1rem;
  }

  #exercise-detail {
    font-size: 1.1rem;
  }

  /* Timer on the right, spanning both rows, right-aligned */
  #timer-display {
    grid-area: timer;
    align-self: center;
    justify-self: center;
  }

  /* Override portrait data-length sizes — bigger for landscape */
  #timer-display[data-length="1"],
  #timer-display[data-length="2"] {
    font-size: clamp(7rem, 40vh, 16rem);
  }

  #timer-display[data-length="3"] {
    font-size: clamp(5.5rem, 32vh, 12rem);
  }

  #timer-display[data-length="4"],
  #timer-display[data-length="5"] {
    font-size: clamp(4.5rem, 25vh, 10rem);
  }

  /* Left bottom: tap-indicator */
  #tap-indicator {
    grid-area: next;
    text-align: left;
    font-size: 1.15rem;
    padding: 0 14px;
    align-self: start;
    padding-top: 10px;
  }

  /* Slim down controls */
  .controls {
    padding: 8px 16px;
    gap: 8px;
    padding-bottom: max(8px, env(safe-area-inset-bottom));
  }

  .control-btn {
    padding: 12px 0;
    font-size: 0.95rem;
  }

  /* Thinner progress bar */
  #progress-bar-container {
    height: 4px;
  }

  /* Keep editor textarea layout in landscape */
  #editor-view .main-display {
    display: flex;
    grid-template-rows: none;
    grid-template-columns: none;
    grid-template-areas: none;
    padding: 0;
  }
}