* { margin: 0; padding: 0; box-sizing: border-box; }

/* ── Theme variables ── */
:root {
  --bg: #0d0d0d;
  --text: #e8e6e1;
  --subtext: #8a8a8e;
  --border: #2a2a2e;
  --card-bg: #1e1e22;
  --input-bg: #191919;
  --grid: #242428;
  --axis: #555;
  --tip-bg: #1e1e22;
  --tip-border: #2a2a2e;
  --focus: #6b9ebb;
  --accent: #6b9ebb;
}

[data-theme="light"] {
  --bg: #f4e9da;
  --text: #1e1410;
  --subtext: #8a7060;
  --border: #d4c4b0;
  --card-bg: #ede3d6;
  --input-bg: #f4e9da;
  --grid: #e8dace;
  --axis: #8a7060;
  --tip-bg: #ede3d6;
  --tip-border: #d4c4b0;
  --focus: #4a7a9a;
  --accent: #4a7a9a;
}

body {
  font-family: 'DM Mono', monospace;
  background: var(--bg);
  color: var(--text);
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding: 20px 16px 24px;
  transition: background 0.2s, color 0.2s;
}

.container {
  width: 100%;
  max-width: 680px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

/* ── Header ── */
h1 {
  font-family: 'DM Serif Display', serif;
  font-size: 1.55rem;
  font-weight: 400;
  letter-spacing: 0.01em;
  color: var(--text);
}

.subtitle {
  font-size: 0.72rem;
  color: var(--subtext);
  margin-top: -8px;
  line-height: 1.4;
}

/* ── Portfolio tabs ── */
.portfolio-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
}

.tab {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 4px 10px;
  border-radius: 20px;
  border: 1px solid var(--border);
  background: none;
  color: var(--subtext);
  font-family: 'DM Mono', monospace;
  font-size: 0.68rem;
  cursor: pointer;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
  white-space: nowrap;
}

.tab:hover { border-color: var(--subtext); }

.tab.active {
  border-color: var(--focus);
  color: var(--text);
  background: rgba(107,158,187,0.08);
}
[data-theme="light"] .tab.active {
  background: rgba(74,122,154,0.1);
}

.tab-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.tab-name {
  cursor: default;
}

.tab-rename-input {
  background: var(--input-bg);
  border: 1px solid var(--focus);
  border-radius: 4px;
  padding: 1px 4px;
  color: var(--text);
  font-family: 'DM Mono', monospace;
  font-size: 0.68rem;
  outline: none;
  width: 80px;
}

.tab-edit {
  display: flex;
  align-items: center;
  background: none;
  border: none;
  color: var(--subtext);
  cursor: pointer;
  padding: 0;
  line-height: 1;
  opacity: 0.5;
  transition: opacity 0.2s, color 0.2s;
}
.tab-edit:hover { opacity: 1; color: var(--focus); }

.tab-remove {
  background: none;
  border: none;
  color: var(--subtext);
  font-size: 0.75rem;
  cursor: pointer;
  padding: 0 0 0 2px;
  line-height: 1;
  opacity: 0.6;
  transition: opacity 0.2s, color 0.2s;
}
.tab-remove:hover { opacity: 1; color: var(--text); }

.tab-add {
  display: flex;
  align-items: center;
  gap: 3px;
  padding: 4px 10px;
  border-radius: 20px;
  border: 1px dashed var(--border);
  background: none;
  color: var(--subtext);
  font-family: 'DM Mono', monospace;
  font-size: 0.68rem;
  cursor: pointer;
  transition: border-color 0.2s, color 0.2s;
}
.tab-add:hover { border-color: var(--subtext); color: var(--text); }

/* ── Form ── */
.form {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.form-group label {
  font-size: 0.68rem;
  color: var(--subtext);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.input-wrap {
  position: relative;
  display: flex;
  align-items: center;
}

.input-wrap input {
  width: 100%;
  background: var(--input-bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 7px 8px;
  padding-right: 36px;
  color: var(--text);
  font-family: 'DM Mono', monospace;
  font-size: 13px;
  outline: none;
  transition: border-color 0.2s;
  -moz-appearance: textfield;
}
.input-wrap input::-webkit-outer-spin-button,
.input-wrap input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

.input-wrap input:focus { border-color: var(--focus); }

.input-unit {
  position: absolute;
  right: 8px;
  font-size: 0.68rem;
  color: var(--subtext);
  pointer-events: none;
}

.input-wrap--sm {
  flex-shrink: 0;
  width: 72px;
}

.form-hint {
  font-size: 0.58rem;
  color: var(--subtext);
  opacity: 0.7;
}

/* ── Slider (rate) ── */
.form-group--wide {
  grid-column: 1 / -1;
}

.slider-row {
  display: flex;
  align-items: center;
  gap: 10px;
}

.slider-track-wrap {
  position: relative;
  flex: 1;
  padding-bottom: 40px; /* space for markers + labels below track */
  z-index: 1;
}

.slider-track-wrap input[type="range"] {
  width: 100%;
  -webkit-appearance: none;
  appearance: none;
  height: 4px;
  background: var(--border);
  border-radius: 2px;
  outline: none;
  cursor: pointer;
}

.slider-track-wrap input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--focus);
  border: 2px solid var(--bg);
  box-shadow: 0 0 0 1px var(--focus);
  cursor: pointer;
  transition: box-shadow 0.15s;
}
.slider-track-wrap input[type="range"]::-moz-range-thumb {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--focus);
  border: 2px solid var(--bg);
  box-shadow: 0 0 0 1px var(--focus);
  cursor: pointer;
}

.slider-track-wrap input[type="range"]:active::-webkit-slider-thumb {
  box-shadow: 0 0 0 3px rgba(107,158,187,0.3);
}
[data-theme="light"] .slider-track-wrap input[type="range"]:active::-webkit-slider-thumb {
  box-shadow: 0 0 0 3px rgba(74,122,154,0.3);
}

.slider-markers {
  position: absolute;
  left: 0;
  right: 0;
  top: 18px; /* below the range track */
  height: 28px;
  pointer-events: none;
  opacity: 0;
  transform: translateY(-3px);
  transition: opacity 0.25s ease, transform 0.25s ease;
}

.slider-track-wrap.active .slider-markers {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.marker {
  position: absolute;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1px;
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
  pointer-events: auto;
  color: var(--subtext);
  transition: color 0.15s;
}
.marker:hover { color: var(--text); }

.marker-tick {
  width: 1px;
  height: 5px;
  background: var(--border);
}

.marker-val {
  font-family: 'DM Mono', monospace;
  font-size: 0.55rem;
  line-height: 1;
}

.marker-label {
  font-family: 'DM Mono', monospace;
  font-size: 0.48rem;
  line-height: 1;
  color: var(--subtext);
  opacity: 0.7;
  white-space: nowrap;
}

.marker:nth-child(1) .marker-label { position: relative; left: -10px; }
.marker:nth-child(2) .marker-label { position: relative; left: 10px; }

/* ── Pills (duration) ── */
.pills-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
}

.pill {
  padding: 5px 12px;
  border-radius: 20px;
  border: 1px solid var(--border);
  background: none;
  color: var(--subtext);
  font-family: 'DM Mono', monospace;
  font-size: 0.68rem;
  cursor: pointer;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
  white-space: nowrap;
}
.pill:hover { border-color: var(--subtext); }

.pill.active {
  border-color: var(--focus);
  color: var(--text);
  background: rgba(107,158,187,0.08);
}
[data-theme="light"] .pill.active {
  background: rgba(74,122,154,0.1);
}

/* ── Separator inside pills row ── */
.pills-sep {
  width: 1px;
  height: 16px;
  background: var(--border);
  flex-shrink: 0;
}

/* ── Noise options row ── */
.form-options {
  display: flex;
  align-items: center;
  gap: 8px;
}

.checkbox-wrap {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.72rem;
  color: var(--text);
  cursor: pointer;
  user-select: none;
}

.checkbox-wrap input[type="checkbox"] {
  display: none;
}

.checkmark {
  width: 15px;
  height: 15px;
  border: 1px solid var(--border);
  border-radius: 3px;
  background: var(--input-bg);
  flex-shrink: 0;
  position: relative;
  transition: border-color 0.2s, background 0.2s;
}

.checkbox-wrap input:checked + .checkmark {
  background: var(--focus);
  border-color: var(--focus);
}

.checkbox-wrap input:checked + .checkmark::after {
  content: '';
  position: absolute;
  left: 4px;
  top: 1px;
  width: 5px;
  height: 9px;
  border: solid #fff;
  border-width: 0 1.5px 1.5px 0;
  transform: rotate(45deg);
}
[data-theme="light"] .checkbox-wrap input:checked + .checkmark::after {
  border-color: #f4e9da;
}

.form-hint-inline {
  font-size: 0.6rem;
  color: var(--subtext);
  opacity: 0.7;
}

/* ── Noise mode radios ── */
.noise-modes {
  display: flex;
  gap: 16px;
  padding-left: 21px;
}
.noise-modes[hidden] { display: none; }

.radio-wrap {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 0.68rem;
  color: var(--text);
  cursor: pointer;
  user-select: none;
}

.radio-wrap input[type="radio"] {
  display: none;
}

.radio-dot {
  width: 13px;
  height: 13px;
  border: 1px solid var(--border);
  border-radius: 50%;
  background: var(--input-bg);
  flex-shrink: 0;
  position: relative;
  transition: border-color 0.2s, background 0.2s;
}

.radio-wrap input:checked + .radio-dot {
  border-color: var(--focus);
}

.radio-wrap input:checked + .radio-dot::after {
  content: '';
  position: absolute;
  top: 3px;
  left: 3px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--focus);
}

.btn-reroll {
  background: none;
  border: 1px solid var(--border);
  border-radius: 6px;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--subtext);
  cursor: pointer;
  transition: border-color 0.2s, color 0.2s, transform 0.3s;
  flex-shrink: 0;
}
.btn-reroll:hover { border-color: var(--focus); color: var(--focus); }
.btn-reroll:active { transform: rotate(180deg); }
.btn-reroll[hidden] { display: none; }

/* ── Chart ── */
.chart-wrap {
  position: relative;
  width: 100%;
  height: 300px;
  cursor: crosshair;
}

#chart,
#chart-overlay {
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 100%;
  display: block;
}

#chart-overlay {
  pointer-events: none;
}

/* ── Tooltip ── */
.chart-tooltip {
  position: absolute;
  background: var(--tip-bg);
  border: 1px solid var(--tip-border);
  border-radius: 8px;
  padding: 8px 11px;
  pointer-events: none;
  z-index: 10;
  box-shadow: 0 4px 14px rgba(0,0,0,0.35);
  white-space: nowrap;
  min-width: 120px;
}
.chart-tooltip[hidden] { display: none; }

.tip-header {
  font-size: 0.62rem;
  color: var(--subtext);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 4px;
}

.tip-rows {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.tip-row {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.78rem;
}

.tip-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  flex-shrink: 0;
}

.tip-label {
  color: var(--subtext);
  font-size: 0.62rem;
}

.tip-val {
  font-weight: 500;
  margin-left: auto;
}

/* ── Summary ── */
.summary {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.summary-card {
  flex: 1;
  min-width: 140px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  transition: background 0.2s, border-color 0.2s;
}

.summary-card-header {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.62rem;
  color: var(--subtext);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.summary-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  flex-shrink: 0;
}

.summary-params {
  font-size: 0.58rem;
  color: var(--subtext);
  opacity: 0.8;
  line-height: 1.3;
}

.summary-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-size: 0.68rem;
}

.summary-label { color: var(--subtext); }
.summary-value { color: var(--text); font-weight: 500; }
.summary-value.positive { color: #4ade80; }
[data-theme="light"] .summary-value.positive { color: #16863a; }

.summary-big {
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--text);
  font-family: 'DM Serif Display', serif;
}

/* ── Capture mode ── */
html.capture .form { display: none; }
html.capture .portfolio-tabs { display: none; }

.summary-strategy {
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 2px;
}

/* ── Responsive ── */
@media (max-width: 480px) {
  .form-grid {
    grid-template-columns: 1fr;
  }
  .form-hint-inline {
    display: none;
  }
  .chart-wrap {
    height: 240px;
  }
  .summary-card {
    min-width: 100%;
  }
}