:root {
  --fg: #ffffff;
  --shadow: rgba(0, 0, 0, 0.35);
  --bg-overlay: rgba(0, 0, 0, 0.32);
}
* {
  box-sizing: border-box;
}
html,
body {
  height: 100%;
  margin: 0;
}
body {
  background: #000;
  font-family:
    ui-sans-serif,
    system-ui,
    -apple-system,
    Segoe UI,
    Roboto,
    Arial;
  color: var(--fg);
}

/* Layout */
.app {
  position: relative;
  height: 100vh;
  overflow: hidden;
}
.bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  background: #000;
  pointer-events: none;
}
.bg::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--bg-overlay);
  pointer-events: none;
  transition: background 220ms ease;
}
.content {
  position: relative;
  z-index: 1;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: clamp(12px, 2.6vh, 28px);
  padding: clamp(24px, 4.6vw, 60px);
  text-align: center;
}

.mode-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(10px, 1.8vw, 18px);
  margin-bottom: clamp(0px, 0.6vh, 8px);
}
.mode-btn {
  border: 1.5px solid rgba(255, 255, 255, 0.55);
  border-radius: 9999px;
  /* transparent/glassy surface that adapts to BG */
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(6px) saturate(110%);
  -webkit-backdrop-filter: blur(6px) saturate(110%);
  color: rgba(255, 255, 255, 0.9);
  padding: 0.5rem 1rem;
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: lowercase;
  cursor: pointer;
  transition:
    background 0.18s ease,
    color 0.18s ease,
    border 0.18s ease,
    box-shadow 0.18s ease,
    transform 0.18s ease;
}
.mode-btn:hover {
  transform: translateY(-2px);
  border-color: rgba(255, 255, 255, 0.85);
  background: rgba(255, 255, 255, 0.14);
  color: #fff;
}
.mode-btn:focus-visible {
  outline: 2px solid rgba(255, 255, 255, 0.8);
  outline-offset: 3px;
}
.mode-btn.is-active {
  background: rgba(255, 255, 255, 0.96);
  color: #1c1c1c;
  border-color: transparent;
  box-shadow: 0 14px 28px rgba(0, 0, 0, 0.22);
  transform: translateY(-1px);
}
.mode-btn.is-active:hover {
  color: #1c1c1c;
  transform: translateY(-1px);
}

/* Timer row (clean digits, no tiles) */
.time-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(8px, 1.4vmin, 14px);
  margin: 0 auto;
  font-variant-numeric: tabular-nums;
}
.flip {
  position: relative;
  width: clamp(60px, 11vmin, 128px);
  height: clamp(84px, 18vmin, 176px);
  margin: 0;
}
.flip::before,
.flip::after {
  content: attr(data-digit);
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  font-weight: 800;
  letter-spacing: 0.005em;
  font-size: clamp(68px, 15vmin, 172px);
  color: #fff;
  text-shadow: none;
  background: transparent;
  border: 0;
  border-radius: 0;
  box-shadow: none;
}
.flip .top,
.flip .bottom {
  display: none !important;
}

.colon {
  width: clamp(18px, 2.6vmin, 36px);
  height: clamp(84px, 18vmin, 176px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  font-weight: 800;
  font-size: clamp(68px, 15vmin, 172px);
  line-height: 1;
  transform: translateY(-0.04em);
  color: #fff;
}

/* Time input overlay */
.time-input {
  opacity: 0;
  pointer-events: none;
  transition: opacity 120ms ease;
  background: rgba(0, 0, 0, 0.6);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 10px;
  padding: 10px 14px;
  font-size: 18px;
  width: 140px;
  text-align: center;
}
.time-input.active {
  opacity: 1;
  pointer-events: auto;
}

.hint {
  display: none !important;
}

.controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(12px, 3vw, 24px);
  margin-top: clamp(0px, 0.6vh, 8px);
}
.control-btn {
  border: none;
  border-radius: 999px;
  font-size: clamp(16px, 2.3vw, 20px);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: lowercase;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition:
    transform 0.18s ease,
    box-shadow 0.18s ease,
    background 0.18s ease,
    opacity 0.18s ease,
    border 0.18s ease;
  color: inherit;
}
.control-btn:focus-visible {
  outline: 2px solid rgba(255, 255, 255, 0.85);
  outline-offset: 3px;
}
.control-btn:hover:not(:disabled),
.control-btn:focus-visible:not(:disabled) {
  transform: translateY(-2px);
}
.control-btn--primary {
  min-height: 62px;
  min-width: 130px;
  padding: 0.5rem 1.75rem;
  font-size: 1.5rem;
  border-radius: 42px;
  background: rgba(255, 255, 255, 0.92);
  color: #161616;
  box-shadow: 0 18px 36px rgba(0, 0, 0, 0.28);
}
.control-btn--primary.is-running {
  background: rgba(255, 255, 255, 0.78);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.22);
}
.control-btn--icon {
  width: 3.25rem;
  height: 3.25rem;
  min-width: 3.25rem;
  min-height: 3.25rem;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.55);
  border: 1.5px solid rgba(255, 255, 255, 0.4);
  box-shadow: 0 14px 28px rgba(0, 0, 0, 0.26);
  color: #fff;
}
.control-btn--icon:hover:not(:disabled),
.control-btn--icon:focus-visible:not(:disabled) {
  border-color: rgba(255, 255, 255, 0.75);
  background: rgba(255, 255, 255, 0.1);
}
.control-btn svg {
  width: clamp(24px, 3.5vw, 26px);
  height: clamp(24px, 3.5vw, 26px);
}
.control-btn--icon svg {
  width: clamp(22px, 3.2vw, 24px);
  height: clamp(22px, 3.2vw, 24px);
}
.control-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

/* Floating action buttons */
.fab-wrap {
  position: fixed;
  right: clamp(16px, 3vw, 36px);
  bottom: clamp(18px, 4vh, 40px);
  display: flex;
  flex-direction: column;
  gap: 12px;
  z-index: 50;
}
.fab {
  width: clamp(52px, 8vw, 60px);
  height: clamp(52px, 8vw, 60px);
  border-radius: 16px;
  background: rgba(0, 0, 0, 0.55);
  border: 2px solid rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(4px);
  color: #fff;
  display: grid;
  place-items: center;
  cursor: pointer;
  transition:
    transform 0.18s ease,
    background 0.18s ease,
    border 0.18s ease;
  outline: none;
}
.fab:hover {
  transform: translateY(-3px);
  background: rgba(0, 0, 0, 0.7);
  border-color: rgba(255, 255, 255, 0.85);
}
.fab:focus-visible {
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.35);
}
.fab svg {
  width: clamp(24px, 3.2vw, 30px);
  height: clamp(24px, 3.2vw, 30px);
}
.fab--alarm[hidden] {
  display: none !important;
}
.fab--alarm {
  background: linear-gradient(
    140deg,
    rgba(255, 255, 255, 0.92),
    rgba(200, 208, 255, 0.88)
  );
  color: #111728;
  border: 2px solid rgba(255, 255, 255, 0.7);
  box-shadow:
    0 18px 40px rgba(52, 74, 255, 0.35),
    inset 0 0 0 1px rgba(255, 255, 255, 0.6);
}
.fab--alarm:hover {
  background: linear-gradient(
    140deg,
    rgba(255, 255, 255, 0.96),
    rgba(210, 220, 255, 0.92)
  );
  border-color: rgba(255, 255, 255, 0.85);
  box-shadow:
    0 22px 46px rgba(52, 74, 255, 0.4),
    inset 0 0 0 1px rgba(255, 255, 255, 0.7);
}
.fab--alarm:focus-visible {
  box-shadow:
    0 0 0 3px rgba(70, 92, 255, 0.45),
    0 18px 40px rgba(52, 74, 255, 0.35),
    inset 0 0 0 1px rgba(255, 255, 255, 0.6);
}

/* Bottom sheet */
.sheet {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(16px, 4vw, 32px);
  z-index: 40;
}
.sheet[hidden] {
  display: none !important;
}
.sheet__backdrop {
  position: fixed;
  inset: 0;
  background: #0008;
  backdrop-filter: blur(2px);
}
.sheet__panel {
  position: relative;
  width: min(960px, 92vw);
  max-height: min(88vh, 720px);
  background: color-mix(in oklab, #0b0b0b 82%, transparent);
  border-radius: 28px;
  border: 1px solid #ffffff1f;
  color: #fff;
  padding: 26px 30px 28px;
  overflow: hidden;
  outline: none;
  display: flex;
  flex-direction: column;
  box-shadow:
    0 38px 90px rgba(0, 0, 0, 0.55),
    inset 0 0 0 1px rgba(255, 255, 255, 0.02);
}
.sheet__panel:focus-visible {
  box-shadow: 0 0 0 3px #fff5;
}
.sheet__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 4px 4px 10px;
}
.icon-btn {
  background: transparent;
  border: 0;
  color: #fff;
  font-size: 22px;
  cursor: pointer;
}
.icon-btn:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 2px;
}

.sheet__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
  gap: 10px;
  padding-bottom: 8px;
  overflow: auto;
  max-height: calc(70vh - 60px);
}
.thumb {
  all: unset;
  cursor: pointer;
  border-radius: 12px;
  overflow: hidden;
  position: relative;
  outline: none;
}
.thumb img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  aspect-ratio: 16 / 10;
}
.thumb:focus-visible {
  box-shadow: 0 0 0 3px #fff8;
}
.thumb.is-active {
  box-shadow: 0 0 0 3px #fff8;
}

/* Prevent page scroll when sheet is open */
body.sheet-open {
  overflow: hidden;
}

@media (max-width: 640px) {
  .sheet {
    padding: 14px;
  }
  .sheet__panel {
    width: 100%;
    max-height: calc(100vh - 28px);
    border-radius: 24px;
    padding: 22px 20px 24px;
  }
}

@media (max-width: 560px) {
  .mode-toggle {
    flex-wrap: wrap;
    gap: 12px;
  }
  .mode-btn {
    flex: 1 1 calc(50% - 12px);
    min-width: 140px;
  }
  .controls {
    gap: 14px;
  }
  .control-btn--primary {
    padding: 0.5rem 1.75rem;
  }
}

@media (prefers-reduced-motion: no-preference) {
  .bg {
    transition: filter 180ms ease;
  }
  .time-input {
    transition: opacity 120ms ease;
  }
}

/* Guardrail overrides */
.mode-toggle {
  gap: clamp(10px, 1.8vw, 18px);
  margin-bottom: clamp(0px, 0.6vh, 8px);
}

.mode-btn {
  border: 1.5px solid rgba(255, 255, 255, 0.55);
  border-radius: 9999px;
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(6px) saturate(110%);
  -webkit-backdrop-filter: blur(6px) saturate(110%);
  color: rgba(255, 255, 255, 0.9);
  padding: 0.5rem 1rem;
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: lowercase;
  cursor: pointer;
  transition:
    background 0.18s ease,
    color 0.18s ease,
    border 0.18s ease,
    box-shadow 0.18s ease,
    transform 0.18s ease;
}

.mode-btn:hover {
  transform: translateY(-2px);
  border-color: rgba(255, 255, 255, 0.85);
  background: rgba(255, 255, 255, 0.14);
  color: #fff;
}

.mode-btn:focus-visible {
  outline: 2px solid rgba(255, 255, 255, 0.8);
  outline-offset: 3px;
}

.mode-btn.is-active {
  background: rgba(255, 255, 255, 0.96);
  color: #1c1c1c;
  border-color: transparent;
  box-shadow: 0 14px 28px rgba(0, 0, 0, 0.22);
  transform: translateY(-1px);
}

.mode-btn.is-active:hover {
  color: #1c1c1c;
  transform: translateY(-1px);
}

.time-wrap {
  gap: clamp(8px, 1.4vmin, 14px);
}

.flip::before,
.flip::after {
  font-size: clamp(56px, 17vw, 190px);
  font-weight: 800;
}

.colon {
  width: clamp(18px, 2.6vmin, 36px);
  font-size: clamp(48px, 15vw, 176px);
}

.control-btn--primary {
  min-height: 62px;
  min-width: 130px;
  padding: 0.5rem 1.75rem;
  font-size: 1.5rem;
  border-radius: 42px;
  background: rgba(255, 255, 255, 0.92);
  color: #161616;
  box-shadow: 0 18px 36px rgba(0, 0, 0, 0.28);
}

.control-btn--icon {
  width: 3.25rem;
  height: 3.25rem;
  min-width: 3.25rem;
  min-height: 3.25rem;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.55);
  border: 1.5px solid rgba(255, 255, 255, 0.4);
  box-shadow: 0 14px 28px rgba(0, 0, 0, 0.26);
  color: #fff;
}

.control-btn--icon:hover:not(:disabled),
.control-btn--icon:focus-visible:not(:disabled) {
  border-color: rgba(255, 255, 255, 0.75);
  background: rgba(255, 255, 255, 0.1);
}

@media (max-width: 560px) {
  .mode-toggle {
    flex-wrap: wrap;
    gap: 12px;
  }
  .mode-btn {
    flex: 1 1 calc(50% - 12px);
    min-width: 140px;
  }
  .controls {
    gap: 14px;
  }
  .control-btn--primary {
    padding: 0.5rem 1.75rem;
  }
}

/* ===================== Responsive Tokens & Baseline ===================== */
:root {
  /* spacing */
  --space-1: clamp(4px, 0.6vw, 8px);
  --space-2: clamp(12px, 1.6vw, 18px);
  --space-3: clamp(18px, 2.4vw, 26px);
  --space-4: clamp(24px, 3vw, 40px);

  /* pills + buttons */
  --pill-pad-y: clamp(10px, 1.1vw, 14px);
  --pill-pad-x: clamp(22px, 3vw, 32px);
  --pill-radius: 999px;
  --icon-diam: clamp(44px, 5vw, 54px); /* reset + settings gear */
  --primary-pad-y: clamp(12px, 1.6vw, 18px);
  --primary-pad-x: clamp(38px, 4.6vw, 52px);
  --ring: 1.5px solid rgba(255, 255, 255, 0.45);

  /* glass */
  --glass-bg: rgba(255, 255, 255, 0.08);
  --glass-bg-hover: rgba(255, 255, 255, 0.14);
  --glass-border: rgba(255, 255, 255, 0.55);

  /* typography scale */
  --digit-min: 68px;
  --digit-fluid: 16vmin; /* scales to short viewports too */
  --digit-max: 188px;
  --colon-min: 50px;
  --colon-fluid: 13.5vmin;
  --colon-max: 160px;
}

/* app container stays centered and padded on all screens */
.app,
.wrapper,
.container {
  max-width: min(1100px, 92vw);
  margin-inline: auto;
  padding-inline: clamp(8px, 2vw, 24px);
}

/* Mode toggle row wraps nicely on small screens */
.mode-toggle {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-2);
  margin-block: var(--space-2);
}

/* ===================== Pills (unselected glassy, selected solid) ======== */
.mode-btn {
  border: var(--ring);
  border-color: var(--glass-border);
  border-radius: 9999px;
  background: var(--glass-bg);
  backdrop-filter: blur(6px) saturate(110%);
  -webkit-backdrop-filter: blur(6px) saturate(110%);
  color: rgba(255, 255, 255, 0.92);
  padding: 0.5rem 1rem;
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: lowercase;
  line-height: 1.1;
  transition:
    background 0.18s ease,
    color 0.18s ease,
    border-color 0.18s ease,
    transform 0.18s ease,
    box-shadow 0.18s ease;
}
.mode-btn:hover {
  background: var(--glass-bg-hover);
  color: #fff;
  transform: translateY(-2px);
}
.mode-btn:focus-visible {
  outline: 2px solid rgba(255, 255, 255, 0.85);
  outline-offset: 3px;
}
.mode-btn.is-active {
  background: rgba(255, 255, 255, 0.96);
  color: #1b1b1b;
  border-color: transparent;
  box-shadow: 0 14px 28px rgba(0, 0, 0, 0.22);
  transform: translateY(-1px);
}
.mode-btn:active {
  transform: translateY(0);
}

/* ===================== Timer sizing (fluid, no overflow) =============== */
.time-wrap,
.timer,
.time,
.display {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: clamp(8px, 1.4vmin, 14px);
}
.flip::before,
.flip::after {
  /* your digits */
  font-size: clamp(var(--digit-min), var(--digit-fluid), var(--digit-max));
  line-height: 0.9;
  font-weight: 800;
  letter-spacing: 0.005em;
  font-variant-numeric: tabular-nums;
}
.colon {
  width: clamp(18px, 2.6vmin, 36px);
  font-size: clamp(var(--colon-min), var(--colon-fluid), var(--colon-max));
  line-height: 0.9;
}

/* ===================== Buttons row ===================================== */
.controls,
.control-row {
  display: flex;
  gap: var(--space-3);
  justify-content: center;
  align-items: center;
  margin-top: clamp(0px, 0.6vh, 8px);
}
.control-btn--primary {
  min-height: 62px;
  min-width: 130px;
  padding: 0.5rem 1.75rem;
  font-size: 1.5rem;
  background: rgba(255, 255, 255, 0.92);
  color: #161616;
  border: none;
  border-radius: 42px;
  box-shadow: 0 18px 36px rgba(0, 0, 0, 0.28);
  font-weight: 700;
  letter-spacing: 0.03em;
  line-height: 1.1;
}
.control-btn--icon {
  width: 3.25rem;
  height: 3.25rem;
  min-width: 3.25rem;
  min-height: 3.25rem;
  border-radius: 50%;
  display: inline-grid;
  place-items: center;
  background: rgba(0, 0, 0, 0.55);
  border: var(--ring);
  color: #fff;
  box-shadow: 0 14px 28px rgba(0, 0, 0, 0.26);
}
.control-btn--icon svg {
  width: 54%;
  height: 54%;
  display: block;
}
.control-btn--icon:hover:not(:disabled),
.control-btn--icon:focus-visible:not(:disabled) {
  border-color: rgba(255, 255, 255, 0.78);
  background: rgba(255, 255, 255, 0.1);
}

/* ===================== Breakpoints (height + width aware) ============== */
/* Very small phones or short landscape heights */
@media (max-width: 360px), (max-height: 420px) {
  :root {
    --digit-fluid: 20vmin;
    --colon-fluid: 16vmin;
  }
  .mode-toggle {
    gap: var(--space-1);
  }
  .control-btn--primary {
    width: min(88vw, 480px);
  }
}

/* Tablets */
@media (min-width: 600px) and (max-width: 899px) {
  :root {
    --digit-fluid: 15vmin;
    --colon-fluid: 12vmin;
  }
}

/* Laptops */
@media (min-width: 900px) and (max-width: 1279px) {
  :root {
    --digit-fluid: 14vmin;
  }
}

/* Large desktop / ultrawide */
@media (min-width: 1280px) {
  :root {
    --digit-max: 196px;
    --colon-max: 168px;
  }
}

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

/* Top spacing so the pills don’t collide with the viewport notch on mobile */
.header,
.top,
.mode-toggle {
  margin-top: clamp(8px, 3vh, 24px);
}

/* Keep big-number dominance but prevent wrap on narrow widths */
.time-wrap {
  flex-wrap: nowrap;
}

/* Primary button gets a tiny lift on hover; still accessible on touch */
.control-btn--primary:hover {
  transform: translateY(-1px);
}
.control-btn--primary:active {
  transform: translateY(0);
}

/* Fine-tune extremely wide screens so digits don’t dwarf pills */
@media (min-width: 1920px) {
  :root {
    --digit-max: 204px;
    --colon-max: 176px;
  }
  .mode-toggle {
    gap: clamp(16px, 1.2vw, 28px);
  }
}

/* Restart button — icon proportions, ring, and hover feel */
#resetBtn.control-btn--icon {
  /* keep existing size if defined elsewhere; only ensure color/ring look right */
  color: #fff; /* white icon on dark backgrounds */
  border: 1.5px solid rgba(255, 255, 255, 0.4);
  background: rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  box-shadow: 0 14px 28px rgba(0, 0, 0, 0.26);
}
#resetBtn.control-btn--icon svg.icon-refresh {
  width: 62%;
  height: 62%;
  display: block;
  /* ensure crisp strokes at any size */
  shape-rendering: geometricPrecision;
  vector-effect: non-scaling-stroke;
}
#resetBtn.control-btn--icon:hover:not(:disabled),
#resetBtn.control-btn--icon:focus-visible:not(:disabled) {
  border-color: rgba(255, 255, 255, 0.8);
  background: rgba(255, 255, 255, 0.1);
  outline: none;
}
#resetBtn.control-btn--icon:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

/* Responsive safety: respect very small heights (landscape phones) */
@media (max-height: 420px) {
  #resetBtn.control-btn--icon svg.icon-refresh {
    width: 58%;
    height: 58%;
  }
}

#resetBtn.control-btn--icon {
  /* Keep its existing dimensions from your site; just ensure ring & tone */
  color: #fff; /* icon stays white */
  border: 1.5px solid rgba(255, 255, 255, 0.4);
  background: rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  box-shadow: 0 14px 28px rgba(0, 0, 0, 0.26);
}
#resetBtn.control-btn--icon:hover:not(:disabled),
#resetBtn.control-btn--icon:focus-visible:not(:disabled) {
  border-color: rgba(255, 255, 255, 0.8);
  background: rgba(255, 255, 255, 0.1);
}
#resetBtn.control-btn--icon svg {
  width: 62%;
  height: 62%;
  display: block;
  shape-rendering: geometricPrecision;
  vector-effect: non-scaling-stroke;
}

/* IMPORTANT: ensure other icon buttons (e.g., settings) keep their current look */
/* If your CSS doesn’t support revert-layer (older pipeline), explicitly unset ONLY what this restart override might have changed globally: */
/*
.control-btn--icon{
  color: inherit;
  border-color: inherit;
  background: inherit;
  backdrop-filter: inherit;
  -webkit-backdrop-filter: inherit;
  box-shadow: inherit;
}
*/

/* Guarantee dynamic backgrounds stay clear (override inline brightness) */
.bg {
  filter: none !important;
  -webkit-filter: none !important;
}

/* Settings button — give the gear a premium glassy halo */
#fab-bg.control-btn--icon {
  position: relative;
  color: #fff;
  border: 1.9px solid rgba(255, 255, 255, 0.58);
  background: radial-gradient(
    circle at 30% 25%,
    rgba(255, 255, 255, 0.42) 0%,
    rgba(255, 255, 255, 0.16) 32%,
    rgba(18, 20, 28, 0.92) 74%,
    rgba(10, 12, 18, 0.95) 100%
  );
  backdrop-filter: blur(10px) saturate(150%);
  -webkit-backdrop-filter: blur(10px) saturate(150%);
  box-shadow:
    0 18px 34px rgba(0, 0, 0, 0.45),
    inset 0 0 0 1px rgba(255, 255, 255, 0.2),
    inset 0 -14px 26px rgba(0, 0, 0, 0.48);
  overflow: hidden;
  transition:
    border-color 0.25s ease,
    box-shadow 0.25s ease,
    transform 0.25s ease;
}
#fab-bg.control-btn--icon::before,
#fab-bg.control-btn--icon::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
  pointer-events: none;
  transition:
    opacity 0.25s ease,
    transform 0.25s ease;
}
#fab-bg.control-btn--icon::before {
  inset: 3px;
  background: radial-gradient(
    circle at 28% 24%,
    rgba(255, 255, 255, 0.7) 0%,
    rgba(255, 255, 255, 0.24) 30%,
    transparent 62%
  );
  opacity: 0.92;
}
#fab-bg.control-btn--icon::after {
  inset: 1px;
  background:
    radial-gradient(
      circle at 72% 80%,
      rgba(255, 255, 255, 0.08) 0%,
      transparent 58%
    ),
    radial-gradient(
      circle at 50% -20%,
      rgba(255, 255, 255, 0.36) 0%,
      rgba(255, 255, 255, 0.08) 36%,
      transparent 70%
    );
  opacity: 0.55;
}
#fab-bg.control-btn--icon svg {
  width: 64%;
  height: 64%;
  display: block;
  position: relative;
  z-index: 1;
  filter: drop-shadow(0 4px 9px rgba(0, 0, 0, 0.5))
    drop-shadow(0 0 5px rgba(255, 255, 255, 0.4));
}
#fab-bg.control-btn--icon:hover:not(:disabled),
#fab-bg.control-btn--icon:focus-visible:not(:disabled) {
  border-color: rgba(255, 255, 255, 0.95);
  box-shadow:
    0 24px 42px rgba(0, 0, 0, 0.52),
    inset 0 0 0 1px rgba(255, 255, 255, 0.25),
    inset 0 -16px 30px rgba(0, 0, 0, 0.45);
  transform: translateY(-1px);
  outline: none;
}
#fab-bg.control-btn--icon:hover:not(:disabled)::before,
#fab-bg.control-btn--icon:focus-visible:not(:disabled)::before {
  opacity: 1;
  transform: scale(1.03);
}
#fab-bg.control-btn--icon:hover:not(:disabled)::after,
#fab-bg.control-btn--icon:focus-visible:not(:disabled)::after {
  opacity: 0.72;
}

#resetBtn.control-btn--icon {
  position: relative;
  border: 1.9px solid rgba(255, 255, 255, 0.58);
  background: radial-gradient(
    circle at 30% 25%,
    rgba(255, 255, 255, 0.42) 0%,
    rgba(255, 255, 255, 0.16) 32%,
    rgba(18, 20, 28, 0.92) 74%,
    rgba(10, 12, 18, 0.95) 100%
  );
  backdrop-filter: blur(10px) saturate(150%);
  -webkit-backdrop-filter: blur(10px) saturate(150%);
  box-shadow:
    0 18px 34px rgba(0, 0, 0, 0.45),
    inset 0 0 0 1px rgba(255, 255, 255, 0.2),
    inset 0 -14px 26px rgba(0, 0, 0, 0.48);
  overflow: hidden;
  transition:
    border-color 0.25s ease,
    box-shadow 0.25s ease,
    transform 0.25s ease,
    background 0.25s ease;
}
#resetBtn.control-btn--icon::before,
#resetBtn.control-btn--icon::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
  pointer-events: none;
  transition:
    opacity 0.25s ease,
    transform 0.25s ease;
}
#resetBtn.control-btn--icon::before {
  inset: 3px;
  background: radial-gradient(
    circle at 28% 24%,
    rgba(255, 255, 255, 0.7) 0%,
    rgba(255, 255, 255, 0.24) 30%,
    transparent 62%
  );
  opacity: 0.92;
}
#resetBtn.control-btn--icon::after {
  inset: 1px;
  background:
    radial-gradient(
      circle at 72% 80%,
      rgba(255, 255, 255, 0.08) 0%,
      transparent 58%
    ),
    radial-gradient(
      circle at 50% -20%,
      rgba(255, 255, 255, 0.36) 0%,
      rgba(255, 255, 255, 0.08) 36%,
      transparent 70%
    );
  opacity: 0.55;
}
#resetBtn.control-btn--icon svg {
  position: relative;
  z-index: 1;
}
#resetBtn.control-btn--icon:hover:not(:disabled),
#resetBtn.control-btn--icon:focus-visible:not(:disabled) {
  border-color: rgba(255, 255, 255, 0.95);
  background: radial-gradient(
    circle at 34% 28%,
    rgba(255, 255, 255, 0.47) 0%,
    rgba(255, 255, 255, 0.18) 36%,
    rgba(22, 24, 32, 0.9) 74%,
    rgba(12, 14, 20, 0.95) 100%
  );
  box-shadow:
    0 24px 42px rgba(0, 0, 0, 0.52),
    inset 0 0 0 1px rgba(255, 255, 255, 0.25),
    inset 0 -16px 30px rgba(0, 0, 0, 0.45);
  transform: translateY(-1px);
}
#resetBtn.control-btn--icon:hover:not(:disabled)::before,
#resetBtn.control-btn--icon:focus-visible:not(:disabled)::before {
  opacity: 1;
  transform: scale(1.03);
}
#resetBtn.control-btn--icon:hover:not(:disabled)::after,
#resetBtn.control-btn--icon:focus-visible:not(:disabled)::after {
  opacity: 0.72;
}
#resetBtn.control-btn--icon:disabled {
  opacity: 0.48;
  cursor: not-allowed;
  transform: none;
  box-shadow:
    0 12px 24px rgba(0, 0, 0, 0.32),
    inset 0 0 0 1px rgba(255, 255, 255, 0.14),
    inset 0 -10px 20px rgba(0, 0, 0, 0.45);
}
#resetBtn.control-btn--icon:disabled::before {
  opacity: 0.4;
}
#resetBtn.control-btn--icon:disabled::after {
  opacity: 0.35;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.sheet__panel {
  padding: 26px 30px 28px;
}
.sheet__close {
  position: absolute;
  top: 18px;
  right: 22px;
  width: 36px;
  height: 36px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  display: grid;
  place-items: center;
  color: #fff;
  font-size: 21px;
  line-height: 1;
  transition:
    background 180ms ease,
    transform 180ms ease;
}
.sheet__close:hover {
  background: rgba(255, 255, 255, 0.16);
  transform: scale(1.04);
}
.sheet__layout {
  display: flex;
  gap: 28px;
  height: 100%;
  margin-top: 18px;
  flex: 1;
  min-height: 0;
  overflow: hidden;
}
.sheet__sidebar {
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-width: 170px;
  padding: 6px 0;
  align-self: flex-start;
}
.sheet__tab {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  border-radius: 14px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.01em;
  color: rgba(255, 255, 255, 0.62);
  cursor: pointer;
  transition:
    color 180ms ease,
    background 180ms ease,
    transform 180ms ease,
    box-shadow 180ms ease;
}
.sheet__tab:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
}
.sheet__tab-input {
  position: absolute;
  opacity: 0;
  width: 1px;
  height: 1px;
}
.sheet__content {
  flex: 1;
  min-height: 0;
  background: linear-gradient(
    160deg,
    rgba(13, 14, 20, 0.92),
    rgba(20, 22, 32, 0.82)
  );
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: 22px 24px;
  display: flex;
  flex-direction: column;
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.02),
    0 26px 44px rgba(0, 0, 0, 0.45);
  overflow: hidden;
}
.sheet__pane {
  display: none;
  flex-direction: column;
  gap: 18px;
  height: 100%;
  min-height: 0;
}
.sheet__pane--background {
  min-height: clamp(240px, 48vh, 420px);
  gap: 24px;
  padding-right: 2px;
  overflow-y: auto;
}
.sheet__section-header--background p {
  color: rgba(255, 255, 255, 0.58);
}
.theme-options {
  display: flex;
  flex-direction: column;
  gap: 14px;
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding-right: 2px;
}
.theme-options .thumb {
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: 8px 18px;
  padding: 14px 18px;
  border-radius: 20px;
  background: rgba(12, 14, 22, 0.78);
  border: 1.4px solid rgba(255, 255, 255, 0.1);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08);
  transition:
    border-color 180ms ease,
    box-shadow 180ms ease,
    transform 180ms ease;
  position: relative;
  cursor: pointer;
  overflow: visible;
}
.theme-options .thumb img {
  width: 96px;
  height: 68px;
  object-fit: cover;
  border-radius: 16px;
  grid-row: 1 / span 3;
  box-shadow: 0 14px 28px rgba(0, 0, 0, 0.45);
}
.theme-options .theme-copy {
  display: flex;
  flex-direction: column;
  gap: 4px;
  justify-content: center;
  grid-column: 2;
}
.theme-options .theme-name {
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: rgba(255, 255, 255, 0.92);
}
.theme-options .theme-hint {
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.52);
}
.theme-options .theme-state {
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(118, 131, 255, 0.82);
  display: none;
}
.theme-options .thumb.is-active .theme-state {
  display: block;
}
.theme-options .thumb.is-active .theme-hint {
  display: none;
}
.theme-options .thumb:hover {
  border-color: rgba(255, 255, 255, 0.22);
  transform: translateY(-2px);
  box-shadow:
    0 20px 36px rgba(0, 0, 0, 0.5),
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
}
.theme-options .thumb:focus-visible {
  outline: 2px solid rgba(118, 131, 255, 0.85);
  outline-offset: 4px;
  box-shadow:
    0 18px 36px rgba(46, 63, 255, 0.28),
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
}
.theme-options .thumb.is-active {
  border-color: rgba(118, 131, 255, 0.9);
  box-shadow:
    0 26px 44px rgba(46, 63, 255, 0.4),
    inset 0 1px 0 rgba(255, 255, 255, 0.12);
}
.theme-options .thumb.is-active::before {
  content: "Active theme";
  color: rgba(118, 131, 255, 0.82);
}
.sheet__pane--timers {
  align-items: stretch;
  justify-content: flex-start;
  text-align: left;
  gap: 24px;
  overflow-y: auto;
  padding-right: 2px;
}
.sheet__pane--language {
  align-items: stretch;
  justify-content: flex-start;
  gap: 24px;
  overflow-y: auto;
  padding-right: 2px;
}
.sheet__section-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 18px;
}
.sheet__section-header h3 {
  margin: 0;
  font-size: clamp(20px, 2.4vw, 24px);
  font-weight: 700;
  letter-spacing: 0.01em;
}
.sheet__section-header p {
  margin: 6px 0 0;
  color: rgba(255, 255, 255, 0.62);
  font-size: 15px;
  line-height: 1.55;
}
.pomodoro-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 18px;
}
.pomodoro-field {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.pomodoro-label {
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: rgba(255, 255, 255, 0.78);
}
.pomodoro-input {
  position: relative;
  border-radius: 14px;
  background: rgba(8, 10, 18, 0.85);
  border: 1.4px solid rgba(255, 255, 255, 0.18);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.12),
    0 10px 26px rgba(0, 0, 0, 0.4);
  transition:
    border-color 180ms ease,
    box-shadow 180ms ease;
}
.pomodoro-input:focus-within {
  border-color: rgba(118, 131, 255, 0.9);
  box-shadow:
    inset 0 0 0 1px rgba(118, 131, 255, 0.6),
    0 14px 32px rgba(46, 63, 255, 0.32);
}
.pomodoro-input input {
  width: 100%;
  padding: 14px 16px;
  border: none;
  background: transparent;
  color: #fff;
  font-size: clamp(20px, 2.6vw, 22px);
  font-weight: 700;
  letter-spacing: 0.04em;
  text-align: center;
  outline: none;
  appearance: textfield;
}
.pomodoro-input input::-webkit-outer-spin-button,
.pomodoro-input input::-webkit-inner-spin-button {
  margin: 0;
  -webkit-appearance: none;
}
.pomodoro-input input[type="number"] {
  -moz-appearance: textfield;
}
.pomodoro-meta {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: rgba(255, 255, 255, 0.52);
}
.pomodoro-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: auto;
  padding-top: 12px;
}
.pomodoro-actions__spacer {
  flex: 1;
}
.pomodoro-btn {
  border: none;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: none;
  padding: 12px 24px;
  cursor: pointer;
  transition:
    transform 180ms ease,
    box-shadow 180ms ease,
    background 180ms ease,
    border-color 180ms ease;
}
.pomodoro-btn:focus-visible {
  outline: 2px solid rgba(255, 255, 255, 0.7);
  outline-offset: 3px;
}
.pomodoro-btn:hover {
  transform: translateY(-1px);
}
.pomodoro-btn--outline {
  background: transparent;
  color: #ff6262;
  border: 1.6px solid rgba(255, 98, 98, 0.6);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.06);
}
.pomodoro-btn--outline:hover {
  border-color: rgba(255, 98, 98, 0.85);
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.08),
    0 12px 24px rgba(255, 98, 98, 0.2);
}
.pomodoro-btn--muted {
  background: rgba(255, 255, 255, 0.12);
  color: rgba(255, 255, 255, 0.84);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.45);
}
.pomodoro-btn--muted:hover {
  background: rgba(255, 255, 255, 0.18);
}
.pomodoro-btn--primary {
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.92),
    rgba(214, 220, 255, 0.92)
  );
  color: #181823;
  box-shadow:
    0 16px 32px rgba(42, 58, 255, 0.35),
    inset 0 0 0 1px rgba(255, 255, 255, 0.6);
}
.pomodoro-btn--primary:hover {
  box-shadow:
    0 20px 38px rgba(42, 58, 255, 0.42),
    inset 0 0 0 1px rgba(255, 255, 255, 0.72);
}

.language-options {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.language-option {
  position: relative;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border-radius: 14px;
  background: rgba(12, 14, 22, 0.78);
  border: 1.4px solid rgba(255, 255, 255, 0.12);
  cursor: pointer;
  transition:
    border-color 180ms ease,
    box-shadow 180ms ease,
    transform 180ms ease;
}
.language-option input {
  position: absolute;
  opacity: 0;
}
.language-option__indicator {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 1.6px solid rgba(255, 255, 255, 0.6);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: border-color 0.18s ease;
}
.language-option__indicator::after {
  content: "";
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: rgba(118, 131, 255, 0.9);
  opacity: 0;
  transform: scale(0.5);
  transition:
    opacity 0.2s ease,
    transform 0.2s ease;
}
.language-option input:checked + .language-option__indicator::after {
  opacity: 1;
  transform: scale(1);
}
.language-option input:focus-visible + .language-option__indicator {
  outline: 2px solid rgba(255, 255, 255, 0.65);
  outline-offset: 4px;
}
.language-option__label {
  font-size: 15px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.78);
  letter-spacing: 0.02em;
}
.language-option:hover {
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-1px);
  box-shadow:
    0 18px 34px rgba(0, 0, 0, 0.4),
    inset 0 0 0 1px rgba(255, 255, 255, 0.08);
}
.language-option input:checked ~ .language-option__label {
  color: #fff;
}
.language-hint {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.52);
  letter-spacing: 0.04em;
}

#sheet-tab-background:checked ~ .sheet__layout .sheet__pane--background,
#sheet-tab-timers:checked ~ .sheet__layout .sheet__pane--timers,
#sheet-tab-language:checked ~ .sheet__layout .sheet__pane--language {
  display: flex;
}

#sheet-tab-background:checked
  ~ .sheet__layout
  .sheet__sidebar
  label[for="sheet-tab-background"],
#sheet-tab-timers:checked
  ~ .sheet__layout
  .sheet__sidebar
  label[for="sheet-tab-timers"],
#sheet-tab-language:checked
  ~ .sheet__layout
  .sheet__sidebar
  label[for="sheet-tab-language"] {
  color: #fff;
  background: rgba(255, 255, 255, 0.14);
  box-shadow:
    0 18px 34px rgba(0, 0, 0, 0.4),
    inset 0 0 0 1px rgba(255, 255, 255, 0.06);
  transform: translateX(8px);
}

#sheet-tab-background:focus-visible
  ~ .sheet__layout
  .sheet__sidebar
  label[for="sheet-tab-background"],
#sheet-tab-timers:focus-visible
  ~ .sheet__layout
  .sheet__sidebar
  label[for="sheet-tab-timers"],
#sheet-tab-language:focus-visible
  ~ .sheet__layout
  .sheet__sidebar
  label[for="sheet-tab-language"] {
  outline: 2px solid rgba(255, 255, 255, 0.65);
  outline-offset: 4px;
}

@media (max-width: 960px) {
  .sheet__panel {
    width: min(640px, 95%);
  }
}

@media (max-width: 720px) {
  .sheet__panel {
    padding: 22px 20px 24px;
  }
  .sheet__layout {
    flex-direction: column;
    gap: 18px;
    margin-top: 24px;
  }
  .sheet__sidebar {
    flex-direction: row;
    justify-content: center;
    gap: 10px;
  }
  .sheet__tab {
    flex: 1;
    justify-content: center;
  }
  #sheet-tab-background:checked
    ~ .sheet__layout
    .sheet__sidebar
    label[for="sheet-tab-background"],
  #sheet-tab-timers:checked
    ~ .sheet__layout
    .sheet__sidebar
    label[for="sheet-tab-timers"],
  #sheet-tab-language:checked
    ~ .sheet__layout
    .sheet__sidebar
    label[for="sheet-tab-language"] {
    transform: translateY(0);
  }
  .sheet__content {
    padding: 18px 16px;
  }
  .pomodoro-grid {
    grid-template-columns: 1fr;
  }
  .pomodoro-actions {
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
  }
  .pomodoro-actions__spacer {
    display: none;
  }
  .theme-options .thumb {
    grid-template-columns: 78px 1fr;
    gap: 4px 12px;
    padding: 12px 14px;
  }
  .theme-options .thumb img {
    width: 78px;
    height: 56px;
  }
}

/* === Pomodoro aesthetic alignment === */
:root {
  --pomodoro-font:
    "Space Grotesk", "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  --pomodoro-digit-lg: 8rem;
  --pomodoro-digit-sm: 7rem;
}

.mode-btn {
  font-family: var(--pomodoro-font);
  font-size: 1.5rem;
  font-weight: 600;
  padding: 0.5rem 1rem;
  min-height: 40px;
  border-radius: 9999px;
  border: 1px solid rgba(255, 255, 255, 0.78);
  background: rgba(0, 0, 0, 0.35);
  color: #fff;
  letter-spacing: 0.02em;
  text-transform: lowercase;
  -webkit-backdrop-filter: none;
  backdrop-filter: none;
  transition:
    background 175ms ease,
    color 175ms ease,
    border-color 175ms ease,
    transform 175ms ease;
}

.mode-btn:hover {
  transform: translateY(-2px);
  border-color: rgba(255, 255, 255, 0.92);
  background: rgba(255, 255, 255, 0.16);
}

.mode-btn.is-active {
  background: #fff;
  color: #111;
  border-color: #fff;
  box-shadow: 0 14px 28px rgba(0, 0, 0, 0.2);
}

.time-wrap {
  gap: clamp(8px, 1.4vmin, 14px);
  font-variant-numeric: tabular-nums;
}

.flip {
  min-width: 6.25rem;
}

.flip::before,
.flip::after {
  font-family: var(--pomodoro-font);
  font-size: var(--pomodoro-digit-lg);
  font-weight: 600;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.colon {
  font-family: var(--pomodoro-font);
  font-size: var(--pomodoro-digit-lg);
  font-weight: 600;
  line-height: 1;
  width: clamp(18px, 2.6vmin, 36px);
  margin-inline: 0.125rem;
}

.controls {
  gap: 1.2rem;
}

.control-btn {
  font-family: var(--pomodoro-font);
  letter-spacing: 0.01em;
}

.control-btn--primary {
  min-height: 62px;
  min-width: 130px;
  padding: 0.5rem 1.75rem;
  font-size: 1.5rem;
  border: 1px solid #fff;
  border-radius: 42px;
  background: #fff;
  color: #000;
  box-shadow: 0 18px 36px rgba(0, 0, 0, 0.24);
  transition:
    transform 175ms ease,
    box-shadow 175ms ease,
    background 175ms ease,
    color 175ms ease;
}

.control-btn--primary:hover:not(:disabled),
.control-btn--primary:focus-visible:not(:disabled) {
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 24px 44px rgba(0, 0, 0, 0.3);
}

.control-btn--primary.is-running {
  background: rgba(255, 255, 255, 0.8);
  color: #111;
}

.control-btn--icon {
  width: 3.25rem;
  height: 3.25rem;
  min-width: 3.25rem;
  min-height: 3.25rem;
  border-radius: 50%;
  border: 1px solid #fff;
  background: rgba(0, 0, 0, 0.45);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 16px 32px rgba(0, 0, 0, 0.25);
  transition:
    transform 175ms ease,
    background 175ms ease,
    border-color 175ms ease;
}

.control-btn--icon svg {
  width: 2.25rem;
  height: 2.25rem;
}

.control-btn--icon:hover:not(:disabled),
.control-btn--icon:focus-visible:not(:disabled) {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.85);
  transform: translateY(-2px);
}

@media (max-width: 750px) {
  .mode-btn {
    font-size: 1.5rem;
    padding: 0.5rem 1rem;
  }

  .flip::before,
  .flip::after,
  .colon {
    font-size: var(--pomodoro-digit-sm);
  }

  .control-btn--icon {
    width: 42px;
    height: 42px;
    min-width: 42px;
    min-height: 42px;
  }

  .control-btn--icon svg {
    width: 36px;
    height: 36px;
  }
}

@media (max-width: 350px) {
  .control-btn--icon {
    width: 38px;
    height: 38px;
    min-width: 38px;
    min-height: 38px;
  }

  .control-btn--icon svg {
    width: 32px;
    height: 32px;
  }
}

/* === Pomodoro desktop sizing override === */
.time-wrap {
  --digit-min: 8rem;
  --digit-fluid: 8rem;
  --digit-max: 8rem;
}

/* smaller screens — match the reference 7rem */
@media (max-width: 750px) {
  .time-wrap {
    --digit-min: 7rem;
    --digit-fluid: 7rem;
    --digit-max: 7rem;
  }
}

/* ====== 1) Ensure the colon is the same size as digits ====== */
.time-wrap .colon {
  font-size: 8rem;
  line-height: 1;
}
@media (max-width: 750px) {
  .time-wrap .colon {
    font-size: 7rem;
  }
}

/* ====== 2) Tighten vertical spacing between digits and buttons ====== */
.time-wrap {
  margin-bottom: 1.15rem; /* desktop gap under the digits */
}
@media (max-width: 750px) {
  .time-wrap {
    margin-bottom: 0.85rem; /* mobile gap under the digits */
  }
}

/* ====== 3) Keep the control row tidy and centered ====== */
.controls {
  align-items: center; /* keep icons vertically centered */
  gap: 16px; /* space between start / reset / settings */
}

/* === Reference sizing overrides === */
.time-wrap {
  --digit-min: 8rem;
  --digit-fluid: 8rem;
  --digit-max: 8rem;
  --colon-min: 8rem;
  --colon-fluid: 8rem;
  --colon-max: 8rem;
  align-items: baseline;
  justify-content: center;
  margin-bottom: 1.15rem;
}
.time-wrap .flip::before,
.time-wrap .flip::after {
  font-size: clamp(var(--digit-min), var(--digit-fluid), var(--digit-max));
  line-height: 1;
  letter-spacing: normal;
}
.time-wrap .colon {
  width: clamp(18px, 2.6vmin, 36px);
  height: auto;
  font-size: clamp(var(--colon-min), var(--colon-fluid), var(--colon-max));
  line-height: 1;
  margin-inline: 0.6rem;
  align-self: baseline;
  transform: none;
}
.mode-toggle {
  justify-content: center;
  gap: 16px;
  margin-bottom: clamp(0px, 0.6vh, 8px);
}
.mode-btn {
  font-size: 1.5rem;
  padding: 0.5rem 1rem;
}
.controls {
  justify-content: center;
  align-items: center;
  gap: 16px;
}
.control-btn--primary {
  min-height: 62px;
  min-width: 130px;
  padding: 0.5rem 1.75rem;
  font-size: 1.5rem;
  border-radius: 42px;
}
.control-btn--icon {
  width: 3.25rem;
  height: 3.25rem;
  min-width: 3.25rem;
  min-height: 3.25rem;
  border-radius: 50%;
}
.control-btn--icon svg {
  width: 2.25rem;
  height: 2.25rem;
}

@media (max-width: 750px) {
  .time-wrap {
    --digit-min: 7rem;
    --digit-fluid: 7rem;
    --digit-max: 7rem;
    --colon-min: 7rem;
    --colon-fluid: 7rem;
    --colon-max: 7rem;
    margin-bottom: 0.85rem;
  }

  .mode-toggle {
    gap: 14px;
  }

  .control-btn--icon {
    width: 42px;
    height: 42px;
    min-width: 42px;
    min-height: 42px;
  }
}

@media (max-width: 350px) {
  .control-btn--icon {
    width: 38px;
    height: 38px;
    min-width: 38px;
    min-height: 38px;
  }
}

/* === Background brightness override === */
.bg::before {
  background: none !important;
  opacity: 0;
}

:root {
  --bg-overlay: transparent !important;
}

body {
  background-color: #000;
}

.bg {
  background-color: transparent !important;
}