@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@400;600;700;800&family=Raleway:wght@400;500;600;700&display=swap');

.dst-tool {
  --dst-accent: #1174DC;
  --dst-accent-soft: rgba(17, 116, 220, 0.08);
  --dst-text: #191919;
  --dst-text-soft: #8F8F8F;
  --dst-bg: #EFEFEF;
  --dst-surface: #ffffff;
  --dst-line: #dbe3ec;
  --dst-shadow: 0 18px 48px rgba(17, 24, 39, 0.07);

  font-family: 'Raleway', sans-serif;
  padding: 56px 0 80px;
  background: var(--dst-bg);
  color: var(--dst-text);
}

.dst-tool *,
.dst-tool *::before,
.dst-tool *::after {
  box-sizing: border-box;
}


.dst-title,
.dst-settings__group h3,
.dst-status-card__value,
.dst-time {
  font-family: 'Poppins', sans-serif;
}

.dst-eyebrow,
.dst-phase-label,
.dst-phase-subtext,
.dst-status-card__label,
.dst-status-card__meta,
.dst-settings__group label span,
.dst-keyboard-hint,
.dst-subtitle {
  font-family: 'Raleway', sans-serif;
}

.dst-btn,
.dst-chip,
.dst-text-btn,
.dst-toggle--top {
  font-family: 'Poppins', sans-serif;
}


.dst-shell {
  display: grid;
  gap: 28px;
}


.dst-hero {
  display: grid;
  gap: 10px;
}

.dst-eyebrow {
  margin: 0;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--dst-accent);
}

.dst-title {
  margin: 0;
  font-size: clamp(2.2rem, 4vw, 4rem);
  line-height: 1.04;
  letter-spacing: -0.03em;
  font-weight: 600;
  color: var(--dst-text);
}

.dst-subtitle {
  margin: 0;
  max-width: 62ch;
  color: var(--dst-text-soft);
  line-height: 1.65;
  font-size: 1rem;
  font-weight: 500;
}


.dst-main-card {
  display: grid;
  gap: 18px;
  padding: 24px;
  background: var(--dst-surface);
  border: 1px solid var(--dst-line);
  border-radius: 28px;
  box-shadow: var(--dst-shadow);
}


.dst-timer-stage {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 470px;
  border-radius: 24px;
  overflow: hidden;
  background: var(--dst-bg);
  border: 1px solid var(--dst-line);
  transition: background 0.3s ease;
}

.dst-timer-stage[style*="--dst-bg-image"] {
  background-image: var(--dst-bg-image);
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.dst-timer-stage::after {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--dst-overlay-color, #ffffff);
  opacity: var(--dst-overlay-opacity, 0);
  z-index: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}


.dst-timer-stage::before {
  content: "";
  position: absolute;
  inset: auto 50% 40px;
  width: 380px;
  height: 380px;
  transform: translateX(-50%);
  border-radius: 50%;
  filter: blur(56px);
  opacity: 0.14;
  pointer-events: none;
  background: var(--dst-accent);
  z-index: 1;
  transition: background 0.4s ease, opacity 0.4s ease;
}

.dst-tool[data-phase="short_break"] .dst-timer-stage::before,
.dst-tool[data-phase="long_break"] .dst-timer-stage::before {
  background: #8F8F8F;
  opacity: 0.1;
}

.dst-tool[data-running="true"] .dst-timer-stage::before {
  animation: dst-glow-pulse 3s ease-in-out infinite;
}

@keyframes dst-glow-pulse {
  0%, 100% { opacity: 0.14; }
  50%       { opacity: 0.22; }
}


.dst-ring-wrap {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  pointer-events: none;
  z-index: 1;
}

.dst-ring {
  width: min(420px, 76vw);
  height: min(420px, 76vw);
  transform: rotate(-90deg);
}

.dst-ring__bg,
.dst-ring__progress {
  fill: none;
  stroke-width: 8;
}

.dst-ring__bg {
  stroke: var(--dst-line);
}

.dst-ring__progress {
  stroke: #ff4242;;
  stroke-linecap: round;
  transition: stroke 0.25s ease, stroke-dashoffset 0.25s linear;
  filter: drop-shadow(0 0 12px rgba(17, 116, 220, 0.25));
}

.dst-tool[data-phase="short_break"] .dst-ring__progress,
.dst-tool[data-phase="long_break"] .dst-ring__progress {
  stroke: #8F8F8F;
  filter: drop-shadow(0 0 10px rgba(143, 143, 143, 0.2));
}


.dst-timer-content {
  position: relative;
  z-index: 2;
  display: grid;
  gap: 10px;
  justify-items: center;
  text-align: center;
}

.dst-phase-label {
  margin: 0;
  font-size: 1.25rem;
  color: #1174dc;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.dst-time {
  font-size: clamp(3.4rem, 11vw, 6rem);
  font-weight: 700;
  line-height: 0.95;
  letter-spacing: -0.05em;
  color: var(--dst-text);
}

.dst-phase-subtext {
  margin: 0;
  color: #ff4242;
  font-size: 1rem;
  font-weight: 600;
}


.dst-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-top: 12px;
}

.dst-btn,
.dst-text-btn,
.dst-chip {
  font: inherit;
}

.dst-btn {
  min-height: 48px;
  padding: 11px 20px;
  border-radius: 12px;
  border: 1.5px solid var(--dst-line);
  background: var(--dst-surface);
  cursor: pointer;
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--dst-text);
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease, border-color 0.18s ease;
}

.dst-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 20px rgba(17, 24, 39, 0.08);
  border-color: #c0cad6;
}

.dst-btn--primary {
  background: var(--dst-accent);
  color: #fff;
  border-color: var(--dst-accent);
}

.dst-btn--primary:hover {
  background: #0d65c8;
  border-color: #0d65c8;
  box-shadow: 0 8px 20px rgba(17, 116, 220, 0.28);
}

#dst-pause-btn[data-hidden="true"] {
  display: none;
}


.dst-status-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.dst-status-card {
  display: grid;
  gap: 8px;
  padding: 20px;
  border-radius: 18px;
  background: var(--dst-bg);
  border: 1px solid var(--dst-line);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.dst-status-card:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 24px rgba(17, 24, 39, 0.06);
}

.dst-status-card__label {
  margin: 0;
  font-size: 0.76rem;
  color: var(--dst-text-soft);
  text-transform: uppercase;
  letter-spacing: 0.09em;
  font-weight: 700;
}

.dst-status-card__value {
  font-size: 1.4rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--dst-text);
}

.dst-status-card__meta {
  margin: 0;
  color: var(--dst-text-soft);
  font-size: 0.92rem;
  font-weight: 500;
}

.dst-text-btn {
  justify-self: start;
  border: 0;
  background: transparent;
  color: var(--dst-accent);
  font-weight: 700;
  font-size: 0.88rem;
  padding: 0;
  cursor: pointer;
  font-family: 'Poppins', sans-serif;
}

.dst-text-btn:hover {
  text-decoration: underline;
}


.dst-settings {
  border-radius: 20px;
  border: 1px solid var(--dst-line);
  background: var(--dst-surface);
  padding: 20px;
}

.dst-settings summary {
  cursor: pointer;
  font-weight: 600;
  font-size: 0.95rem;
  list-style: none;
  user-select: none;
  color: var(--dst-text);
  font-family: 'Poppins', sans-serif;
}

.dst-settings summary::-webkit-details-marker {
  display: none;
}

.dst-settings summary::before {
  content: "▾";
  display: inline-block;
  margin-right: 8px;
  transition: transform 0.2s ease;
  color: var(--dst-text-soft);
}

.dst-settings[open] summary::before {
  transform: rotate(180deg);
}

.dst-settings__grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 18px;
  align-items: start;
}

.dst-settings__group {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 16px;
  border-radius: 16px;
  background: var(--dst-bg);
  border: 1px solid var(--dst-line);
}

.dst-settings__group h3 {
  margin: 0 0 2px;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--dst-text);
}

.dst-settings__group label {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.dst-settings__group--options label {
  flex-direction: row;
  align-items: center;
}

.dst-settings__group label span {
  font-size: 0.76rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--dst-text-soft);
  font-weight: 600;
}

.dst-settings__group input[type="number"] {
  min-height: 44px;
  max-width: 220px;
  padding: 10px 12px;
  border: 1.5px solid var(--dst-line);
  border-radius: 10px;
  background: var(--dst-surface);
  font: inherit;
  font-family: 'Raleway', sans-serif;
  color: var(--dst-text);
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.dst-settings__group input[type="number"]:focus {
  border-color: var(--dst-accent);
  box-shadow: 0 0 0 3px rgba(17, 116, 220, 0.1);
}


.dst-presets {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 4px;
}

.dst-chip {
  min-height: 36px;
  padding: 7px 12px;
  border-radius: 999px;
  border: 1.5px solid var(--dst-line);
  background: var(--dst-surface);
  cursor: pointer;
  color: var(--dst-text-soft);
  font-size: 0.82rem;
  font-weight: 600;
  transition: transform 0.18s ease, border-color 0.18s ease, background 0.18s ease, color 0.18s ease;
}

.dst-chip:hover {
  transform: translateY(-1px);
  border-color: var(--dst-accent);
  color: var(--dst-accent);
  background: var(--dst-accent-soft);
}

.dst-chip.is-active {
  background: var(--dst-accent);
  color: #fff;
  border-color: var(--dst-accent);
}


.dst-toggle {
  display: inline-flex;
  flex-direction: row;
  align-items: center;
  gap: 10px;
}

.dst-toggle input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--dst-accent);
  flex-shrink: 0;
}


.dst-timer-right {
  position: absolute;
  top: 16px;
  right: 16px;
  z-index: 3;
}

.dst-toggle--top {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid var(--dst-line);
  padding: 8px 14px;
  border-radius: 12px;
  font-size: 0.8rem;
  font-weight: 600;
  box-shadow: 0 4px 12px rgba(0,0,0,0.05);
  backdrop-filter: blur(6px);
  cursor: pointer;
  user-select: none;
  color: var(--dst-text-soft);
}

.dst-toggle--top input {
  margin: 0;
}


.dst-keyboard-hint {
  position: absolute;
  bottom: 4px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.95rem;
  color: #7a7a7aff;
  letter-spacing: 0.05em;
  white-space: nowrap;
  z-index: 2;
  pointer-events: none;
  font-weight: 500;
}


.dst-phase-toast {
  position: fixed;
  left: 50%;
  bottom: 28px;
  transform: translateX(-50%) translateY(20px);
  padding: 13px 20px;
  border-radius: 12px;
  background: rgba(25, 25, 25, 0.94);
  color: #fff;
  font-weight: 600;
  font-size: 0.92rem;
  font-family: 'Poppins', sans-serif;
  box-shadow: 0 14px 32px rgba(17, 24, 39, 0.16);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease, transform 0.25s ease;
  z-index: 9999;
}

.dst-phase-toast.is-visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}


@media (max-width: 989px) {
  .dst-tool {
    padding: 32px 0 56px;
  }

  .dst-main-card {
    padding: 16px;
  }

  .dst-status-grid,
  .dst-settings__grid {
    grid-template-columns: 1fr;
  }

  .dst-timer-stage {
    min-height: 360px;
  }

  .dst-ring {
    width: min(300px, 80vw);
    height: min(300px, 80vw);
  }

  .dst-actions {
    width: 100%;
  }

  .dst-btn {
    flex: 1 1 auto;
    min-width: 110px;
  }
}

@media (max-width: 768px) {
  .dst-timer-right {
    display: none;
  }

  .dst-keyboard-hint {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .dst-tool *,
  .dst-tool *::before,
  .dst-tool *::after {
    animation: none !important;
    transition: none !important;
  }
}