/* Activity Timer — page-specific styles */

.activity-timer .grid {
  display: grid;
  grid-template-columns: minmax(320px, 380px) 1fr;
  gap: 24px;
  align-items: start;
}

.activity-timer .config-panel {
  position: sticky;
  top: calc(var(--nav-height) + 20px);
}

.activity-timer textarea {
  resize: vertical;
  min-height: 110px;
}

.activity-timer .timer-panel {
  min-height: min(74vh, 820px);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background:
    linear-gradient(145deg, color-mix(in srgb, var(--accent) 10%, var(--panel)) 0%, var(--panel) 56%),
    var(--panel);
  border: 1px solid color-mix(in srgb, var(--accent) 22%, var(--line-strong));
  backdrop-filter: blur(10px);
}

.activity-timer .timer-heading {
  text-align: center;
}

.activity-timer .timer-heading h2 {
  font-size: clamp(1.25rem, 2.2vw, 1.95rem);
  margin-bottom: 8px;
}

.activity-timer .timer-instructions {
  margin: 0 auto;
  max-width: 64ch;
  color: var(--muted);
}

.activity-timer .timer-stage {
  flex: 1;
  display: grid;
  place-items: center;
  padding: 12px 0;
}

.activity-timer .timer-circle {
  position: relative;
  width: min(56vh, 56vw, 470px);
  aspect-ratio: 1 / 1;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background:
    radial-gradient(circle at 30% 22%, color-mix(in srgb, var(--accent) 18%, transparent), transparent 58%),
    color-mix(in srgb, var(--panel) 88%, transparent);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.activity-timer .timer-circle__svg {
  width: 100%;
  height: 100%;
  transform: rotate(-90deg);
}

.activity-timer .timer-circle__track {
  fill: none;
  stroke: color-mix(in srgb, var(--line-strong) 85%, transparent);
  stroke-width: 18;
}

.activity-timer .timer-circle__progress {
  fill: none;
  stroke: url(#progressGradient);
  stroke-linecap: round;
  stroke-width: 18;
  transition: stroke-dashoffset 220ms linear;
}

.activity-timer .timer-circle__content {
  position: absolute;
  inset: 0;
  display: grid;
  place-content: center;
  text-align: center;
  padding: 18px;
}

.activity-timer .timer-label {
  color: var(--muted);
  font-size: clamp(1.05rem, 1.9vw, 1.35rem);
  font-weight: 600;
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.activity-timer .timer-value {
  font-size: clamp(2.6rem, 7.2vw, 5.9rem);
  line-height: 1;
  font-weight: 700;
  letter-spacing: 0.03em;
}

.activity-timer .control-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  margin-top: 16px;
}

.activity-timer .control-row button {
  min-height: 40px;
}

.activity-timer #zoomControls {
  display: flex;
  gap: 10px;
}

.activity-timer #zoomControls button {
  min-height: 40px;
}

.activity-timer .hidden {
  display: none !important;
}

.activity-timer .grid.timer-view {
  grid-template-columns: 1fr;
}

.activity-timer .grid.timer-view .timer-panel {
  min-height: min(78vh, 860px);
}

.activity-timer .grid.timer-view .timer-circle {
  width: min(60vh, 60vw, 560px);
}

.activity-timer .grid.timer-view .timer-value {
  font-size: clamp(3.1rem, 8.2vw, 6.7rem);
}

.duration-dialog {
  width: min(92vw, 520px);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  background: var(--panel);
  color: var(--text);
  box-shadow: var(--shadow);
  padding: 22px;
}

.duration-dialog::backdrop {
  background: rgba(22, 12, 43, 0.38);
  backdrop-filter: blur(2px);
}

.duration-dialog h3 {
  margin: 0 0 10px;
  font-size: 1.2rem;
}

.duration-dialog p {
  margin: 0;
  color: var(--muted);
}

.duration-dialog__actions {
  margin-top: 18px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* Theme toggle copied for consistency with Exam Timer */
.site-header__theme {
  flex-shrink: 0;
}

.theme-segment {
  display: inline-flex;
  align-items: stretch;
  padding: 3px;
  border-radius: 999px;
  background: var(--bg-subtle);
  border: 1px solid var(--line-strong);
  box-shadow: 0 1px 2px rgba(76, 29, 149, 0.05);
}

.theme-segment__btn {
  position: relative;
  z-index: 1;
  margin: 0;
  padding: 7px 14px;
  border-radius: 999px;
  border: none;
  background: transparent;
  color: var(--muted);
  font-size: 0.84rem;
  font-weight: 500;
  font-family: inherit;
  cursor: pointer;
  transition: color 0.15s ease, background 0.15s ease, box-shadow 0.15s ease;
}

.theme-segment__btn[aria-pressed="true"] {
  background: var(--panel);
  color: var(--text);
  font-weight: 600;
  box-shadow: 0 1px 3px rgba(76, 29, 149, 0.1);
}

:root[data-theme="dark"] .theme-segment__btn[aria-pressed="true"] {
  background: var(--panel-hover);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.35);
}

.theme-segment__btn:hover:not([aria-pressed="true"]) {
  color: var(--text);
}

.theme-segment__btn:focus-visible {
  outline: none;
  box-shadow: var(--focus);
}

@media (max-width: 980px) {
  .activity-timer .grid {
    grid-template-columns: 1fr;
  }

  .activity-timer .config-panel {
    position: static;
  }

  .activity-timer .timer-panel {
    min-height: 70vh;
  }

  .activity-timer .timer-circle {
    width: min(68vw, 450px);
  }
}

@media (max-width: 640px) {
  .activity-timer .timer-panel {
    padding: 18px;
  }

  .activity-timer .timer-circle {
    width: min(78vw, 420px);
  }

  .activity-timer .timer-value {
    font-size: clamp(2.3rem, 9.8vw, 4.2rem);
  }
}