@font-face {
  font-family: "PanopticMonospace";
  src: url("PanopticMonospace-Bold.otf") format("opentype");
  font-weight: normal;
  font-style: normal;
}

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

body {
  height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  font-family: "Courier New", Courier, monospace;
  background-color: #1b5e20;
  overflow: hidden;
  color: white;
}

@media (prefers-reduced-motion: no-preference) {
  body {
    transition: background-color 1s ease;
  }
}

/* Visually hidden but available to screen readers */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

#timer-display {
  font-size: 10vw; /* overridden by fitText() */
  font-family: "PanopticMonospace", "Courier New", monospace;
  line-height: 0.85;
  font-weight: bold;
  color: rgba(255, 255, 255, 0.95);
  text-shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
  letter-spacing: -0.04em;
  user-select: none;
  white-space: nowrap;
  transform: scaleY(2);
  display: inline-block;
}

#timer-display .colon {
  display: inline-block;
  width: 1ch;
  transform: translateX(60%) translateY(-15%) scale(1.5) scaleY(0.75);
}

.controls-wrapper {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 1.25rem 1.5rem 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.25));
}

.duration-row {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 1.4rem;
}

.duration-row input {
  width: 3.2rem;
  padding: 0.25rem 0.3rem;
  font-size: 1.4rem;
  font-family: inherit;
  text-align: center;
  background: rgba(255, 255, 255, 0.15);
  border: 2px solid rgba(255, 255, 255, 0.4);
  border-radius: 6px;
  color: white;
  -moz-appearance: textfield;
  appearance: textfield;
  transition:
    border-color 0.2s,
    background 0.2s;
}

.duration-row input:focus {
  outline: 3px solid white;
  outline-offset: 2px;
  border-color: rgba(255, 255, 255, 0.9);
  background: rgba(255, 255, 255, 0.25);
}

.duration-row input:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.duration-row input::-webkit-inner-spin-button,
.duration-row input::-webkit-outer-spin-button {
  -webkit-appearance: none;
}

.duration-row .sep {
  font-size: 1.8rem;
  opacity: 0.7;
  line-height: 1;
}

.buttons {
  display: flex;
  align-items: center;
  gap: 1.1rem;
}

.btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 3rem;
  height: 3rem;
  border: 2px solid rgba(255, 255, 255, 0.45);
  border-radius: 50%;
  cursor: pointer;
  font-size: 1rem;
  line-height: 1;
  background: rgba(255, 255, 255, 0.18);
  color: white;
  transition:
    background 0.15s,
    transform 0.1s,
    opacity 0.2s,
    border-color 0.15s;
}

.btn span {
  display: block;
  line-height: 1;
}

.btn:focus-visible {
  outline: 3px solid white;
  outline-offset: 3px;
}

.btn:hover:not(:disabled) {
  background: rgba(255, 255, 255, 0.32);
  border-color: rgba(255, 255, 255, 0.75);
  transform: scale(1.08);
}

.btn:active:not(:disabled) {
  transform: scale(0.93);
}

.btn:disabled {
  opacity: 0.28;
  cursor: not-allowed;
}

#btn-pause {
  font-size: 1.4rem;
}

/* Start button is slightly larger — primary action */
#btn-start {
  width: 3.8rem;
  height: 3.8rem;
  font-size: 1.5rem;
  background: rgba(255, 255, 255, 0.25);
}

/* Portrait mobile: stack minutes and seconds, hide colon */
@media (orientation: portrait) and (max-width: 768px) {
  #timer-display {
    display: flex;
    flex-direction: column;
    align-items: center;
    transform: none;
    white-space: normal;
  }

  #timer-display .colon {
    display: none;
  }

  #timer-display .mins,
  #timer-display .secs {
    display: block;
  }
}

#page-content {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  padding: 1rem 1.5rem;
  text-align: center;
  pointer-events: none;
}

#page-content h1 {
  font-size: clamp(1rem, 2.5vw, 1.4rem);
  font-weight: bold;
  letter-spacing: 0.05em;
  opacity: 0.85;
  margin-bottom: 0.35rem;
}

#page-content p {
  font-size: clamp(0.75rem, 1.8vw, 1rem);
  opacity: 0.7;
  max-width: 55ch;
  margin: 0 auto;
  line-height: 1.5;
}

.kofi-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.45em;
  margin-top: 0.75rem;
  padding: 0.4em 1em;
  border: 2px solid rgba(255, 255, 255, 0.5);
  border-radius: 2em;
  background: rgba(255, 255, 255, 0.12);
  color: white;
  font-family: inherit;
  font-size: clamp(0.75rem, 1.6vw, 0.95rem);
  text-decoration: none;
  pointer-events: auto;
  transition:
    background 0.15s,
    border-color 0.15s;
}

.kofi-btn:hover {
  background: rgba(255, 255, 255, 0.25);
  border-color: rgba(255, 255, 255, 0.8);
}

.kofi-btn img {
  width: 1.2em;
  height: 1.2em;
  filter: brightness(0) invert(1);
}

/* BPM glyph mode overrides */
.bpm-mode #timer-display .colon {
  width: auto;
  transform: none;
}

.bpm-mode #timer-display {
  transform: none;
  line-height: 1;
  font-size: 10vw; /* reset baseline; fitText() will override */
}

/* Landscape mobile: controls move to the right of the timer */
@media (orientation: landscape) and (max-height: 500px) {
  #page-content {
    display: none !important;
  }
  body {
    flex-direction: row;
    gap: 2rem;
    padding: 1rem 4rem;
  }

  .controls-wrapper {
    position: static;
    background: none;
    padding: 0;
    flex-shrink: 0;
  }
}