.panel-timer {
  display: grid;
  grid-template-rows: auto 1fr auto;
  gap: 18px;
  padding: 22px 24px 20px;
  aspect-ratio: 1 / 1;
}

.panel-timer.is-attention {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.02)),
    color-mix(in srgb, var(--accent) 28%, var(--panel));
  border-color: color-mix(in srgb, var(--accent-strong) 64%, var(--line));
  box-shadow:
    0 24px 80px rgba(0, 0, 0, 0.34),
    0 0 0 1px color-mix(in srgb, var(--accent-strong) 28%, transparent),
    0 0 56px color-mix(in srgb, var(--accent-strong) 28%, transparent);
}

.panel-timer.is-attention .timer-ring {
  background:
    radial-gradient(circle, #0d100f 0 63%, transparent 63% 100%),
    radial-gradient(circle, transparent 0 74%, color-mix(in srgb, var(--accent-strong) 14%, var(--bg-soft)) 74% 76.2%, transparent 76.2% 100%),
    conic-gradient(var(--accent-strong) var(--progress, 0deg), color-mix(in srgb, var(--accent-strong) 34%, var(--ring-track)) 0deg);
  box-shadow:
    0 0 0 1px color-mix(in srgb, var(--accent-strong) 22%, transparent),
    0 0 42px color-mix(in srgb, var(--accent-strong) 24%, transparent);
}

.timer-panel-main {
  display: grid;
  align-content: center;
  gap: 16px;
}

.timer-panel-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.timer-mode-switch {
  justify-content: center;
  flex-wrap: wrap;
}

.timer-meta {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  opacity: 1;
}

.mode-pill {
  margin: 0;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-size: 0.76rem;
  color: color-mix(in srgb, var(--text) 88%, var(--accent-strong));
}

.timer-shell {
  display: grid;
  place-items: center;
  width: 100%;
  height: 100%;
}

.timer-shell-button {
  padding: 0;
  border: 0;
  border-radius: 28px;
  background: transparent;
  color: var(--text);
  cursor: pointer;
}

.timer-shell-button:focus-visible {
  outline: none;
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.12);
}

.timer-ring {
  display: grid;
  place-items: center;
  width: min(100%, 292px);
  aspect-ratio: 1;
  border-radius: 50%;
  background:
    radial-gradient(circle, #0d100f 0 63%, transparent 63% 100%),
    radial-gradient(circle, transparent 0 74%, var(--bg-soft) 74% 76.2%, transparent 76.2% 100%),
    conic-gradient(var(--accent-strong) var(--progress, 0deg), var(--ring-track) 0deg);
}

.timer-display {
  font-family: var(--font-sans);
  font-size: clamp(3rem, 6vw, 4.35rem);
  line-height: 1;
  font-weight: 580;
  letter-spacing: -0.06em;
  font-variant-numeric: tabular-nums;
  color: var(--text);
  text-shadow: 0 1px 8px rgba(0, 0, 0, 0.18);
}

.timer-display-wrap {
  display: inline-flex;
  align-items: flex-start;
  gap: 10px;
}

.timer-seconds {
  padding-top: 4px;
  font-family: "Roboto Mono", monospace;
  font-size: clamp(0.95rem, 1.5vw, 1.3rem);
  color: var(--accent-strong);
  font-variant-numeric: tabular-nums;
  line-height: 1;
}

.mode-button {
  min-height: 32px;
  padding: 0 12px;
  color: var(--muted);
  font-size: 0.84rem;
}

.mode-button.is-active {
  border-color: transparent;
  background: var(--accent);
  color: var(--text);
}

@media (max-width: 640px) {
  .panel-timer {
    aspect-ratio: auto;
    min-height: 420px;
  }

  .timer-ring {
    width: min(100%, 260px);
  }
}