/* tools.css — shared styles for calculator/tool pages */

.tool-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  margin: 1.5rem auto;
  max-width: 720px;
  box-shadow: var(--glow);
}

.tool-card h2 {
  margin-top: 0;
  font-size: 1.25rem;
}

.tool-tldr {
  background: var(--surface2);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  margin: 1.5rem auto;
  max-width: 720px;
  color: var(--text);
  font-size: 0.95rem;
  line-height: 1.55;
}

.tool-tldr strong { color: var(--accent2); }

.tool-form {
  display: grid;
  gap: 1rem;
}

.tool-form .field {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.tool-form label {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.tool-form input[type="number"],
.tool-form input[type="time"],
.tool-form select {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-size: 1rem;
  padding: 0.65rem 0.8rem;
  font-family: inherit;
  width: 100%;
  box-sizing: border-box;
}

.tool-form input:focus,
.tool-form select:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

.tool-form .field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

@media (max-width: 520px) {
  .tool-form .field-row { grid-template-columns: 1fr; }
}

/* sliders */
.tool-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  background: var(--surface2);
  border-radius: 3px;
  outline: none;
}
.tool-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 22px; height: 22px;
  background: var(--accent);
  border-radius: 50%;
  cursor: pointer;
  box-shadow: var(--glow);
}
.tool-slider::-moz-range-thumb {
  width: 22px; height: 22px;
  background: var(--accent);
  border-radius: 50%;
  cursor: pointer;
  border: none;
}

.slider-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.6rem;
  align-items: center;
}
.slider-value {
  min-width: 3.2rem;
  text-align: right;
  font-variant-numeric: tabular-nums;
  color: var(--accent2);
  font-weight: 600;
}

/* buttons */
.tool-actions {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
  margin-top: 0.4rem;
}
.tool-btn {
  background: var(--accent);
  color: #0a0a12;
  border: none;
  border-radius: var(--radius);
  padding: 0.7rem 1.2rem;
  font-size: 0.92rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition);
}
.tool-btn:hover { transform: translateY(-1px); box-shadow: var(--glow); }
.tool-btn--ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}
.tool-btn[aria-pressed="true"] {
  background: var(--accent2);
}

/* output cards */
.tool-output {
  margin-top: 1.5rem;
  display: grid;
  gap: 0.75rem;
}
.tool-output-card {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}
.tool-output-card strong {
  color: var(--accent2);
  font-size: 1.1rem;
  font-variant-numeric: tabular-nums;
}
.tool-output-card .label {
  font-size: 0.82rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.tool-output-card.ideal { border-left: 3px solid var(--accent2); }
.tool-output-card.bonus { border-left: 3px solid var(--accent); }
.tool-output-card.minimum { border-left: 3px solid var(--danger); }

/* big readout */
.tool-readout {
  text-align: center;
  font-size: 2.4rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--accent2);
  margin: 1rem 0 0.4rem;
}
.tool-readout-sub {
  text-align: center;
  font-size: 0.92rem;
  color: var(--muted);
  margin-bottom: 1rem;
}

/* breathing dot */
.breath-stage {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 220px;
  margin: 1rem 0;
}
.breath-dot {
  width: 80px; height: 80px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--accent) 0%, var(--accent2) 100%);
  box-shadow: var(--glow);
  transition: transform 1s ease-in-out;
}
@media (prefers-reduced-motion: reduce) {
  .breath-dot { transition: none; }
}
.breath-label {
  margin-top: 1rem;
  font-size: 1.05rem;
  color: var(--text);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* dB chart */
.db-bar {
  width: 100%;
  height: 28px;
  border-radius: 14px;
  background: linear-gradient(to right,
    #5ce8d4 0%,
    #5ce8d4 50%,
    #f8b85c 60.7%,
    #f87c5c 85.7%,
    #f87c8b 100%);
  position: relative;
  margin: 1rem 0 0.5rem;
}
.db-marker {
  position: absolute;
  top: -4px; bottom: -4px;
  width: 4px;
  background: var(--text);
  border-radius: 2px;
  box-shadow: 0 0 8px rgba(255,255,255,0.6);
  transition: left 0.15s ease;
}
.db-zone {
  padding: 0.5rem 0.8rem;
  border-radius: var(--radius);
  font-size: 0.92rem;
  margin: 0.5rem 0;
}
.db-zone.safe { background: rgba(92,232,212,0.15); color: var(--accent2); }
.db-zone.caution { background: rgba(248,184,92,0.18); color: #f8b85c; }
.db-zone.damage { background: rgba(248,124,92,0.18); color: #f87c5c; }
.db-zone.critical { background: rgba(248,124,139,0.20); color: var(--danger); }

/* compare table */
.compare-table {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0;
  font-size: 0.92rem;
}
.compare-table th, .compare-table td {
  padding: 0.55rem 0.75rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
}
.compare-table th {
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  font-weight: 600;
}
.compare-table tbody tr:hover { background: var(--surface2); }

/* preset chips */
.preset-row {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}
.preset-chip {
  background: var(--surface2);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 999px;
  padding: 0.4rem 0.9rem;
  font-size: 0.82rem;
  cursor: pointer;
  transition: background var(--transition);
}
.preset-chip:hover { background: var(--accent); color: #0a0a12; }
.preset-chip[aria-pressed="true"] { background: var(--accent); color: #0a0a12; }

/* schedule list */
.schedule-list {
  display: grid;
  gap: 0.5rem;
  margin: 1rem 0;
}
.schedule-row {
  display: grid;
  grid-template-columns: 110px 1fr auto;
  gap: 0.75rem;
  padding: 0.55rem 0.85rem;
  background: var(--surface2);
  border-radius: var(--radius);
  font-size: 0.92rem;
  align-items: center;
}
.schedule-row .time {
  font-variant-numeric: tabular-nums;
  color: var(--accent2);
  font-weight: 600;
}
.schedule-row.break { opacity: 0.75; }
.schedule-row.long-break { border-left: 3px solid var(--accent); }

/* caffeine timeline */
.caffeine-row {
  display: grid;
  grid-template-columns: 90px 1fr 70px;
  gap: 0.6rem;
  align-items: center;
  padding: 0.4rem 0.6rem;
  border-bottom: 1px solid var(--border);
  font-size: 0.9rem;
}
.caffeine-row .bar {
  height: 8px;
  background: var(--surface2);
  border-radius: 4px;
  overflow: hidden;
}
.caffeine-row .bar > span {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  transition: width 0.3s ease;
}
.caffeine-row .mg {
  text-align: right;
  font-variant-numeric: tabular-nums;
  color: var(--accent2);
  font-weight: 600;
}
.caffeine-row .time {
  font-variant-numeric: tabular-nums;
  color: var(--muted);
}

.warning-card {
  background: rgba(248,124,92,0.10);
  border: 1px solid rgba(248,124,92,0.30);
  border-radius: var(--radius);
  padding: 0.85rem 1rem;
  margin: 1rem 0;
  font-size: 0.9rem;
  color: var(--text);
}
.warning-card strong { color: #f87c5c; }