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

body {
  font-family: 'DM Sans', sans-serif;
  background: #181512;
  color: #EDE8DF;
  min-height: 100vh;
}

:root {
  --gold: #C4922A;
  --sage: #6B9B84;
  --bg1: #211E1A;
  --bg2: #2A2520;
  --muted: #7A7570;
  --border: #2A2520;
}

.mono {
  font-family: 'DM Mono', monospace;
}

.serif {
  font-family: 'DM Serif Display', serif;
}

.label {
  font-family: 'DM Mono', monospace;
  font-size: 10px;
  letter-spacing: .14em;
  color: var(--muted);
  text-transform: uppercase;
  margin-bottom: 12px;
}

header {
  border-bottom: 1px solid var(--border);
  padding: 44px 40px 32px;
  max-width: 740px;
  margin: 0 auto;
}

.eyebrow {
  font-family: 'DM Mono', monospace;
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--gold);
  text-transform: uppercase;
  margin-bottom: 10px;
}

h1 {
  font-family: 'DM Serif Display', serif;
  font-size: 48px;
  font-weight: 400;
  line-height: 1.05;
  margin-bottom: 10px;
}

.sub {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.65;
}

main {
  max-width: 740px;
  margin: 0 auto;
  padding: 32px 40px 80px;
}

/* Recipe Selector */
.recipe-selector {
  display: flex;
  background: var(--bg1);
  border-radius: 8px;
  padding: 4px;
  margin-bottom: 24px;
  border: 1px solid var(--border);
}

.recipe-tab {
  flex: 1;
  background: transparent;
  border: none;
  color: var(--muted);
  font-family: 'DM Mono', monospace;
  font-size: 11px;
  letter-spacing: .08em;
  text-transform: uppercase;
  padding: 10px;
  cursor: pointer;
  border-radius: 6px;
  transition: all 0.15s;
  text-align: center;
}

.recipe-tab.active {
  background: var(--bg2);
  color: #EDE8DF;
  font-weight: 500;
}

.card {
  background: var(--bg1);
  border-radius: 12px;
  padding: 22px;
}

.controls {
  display: grid;
  grid-template-columns: 164px 1fr 1fr;
  gap: 12px;
  margin-bottom: 24px;
}

.water-input-wrapper {
  display: flex;
  align-items: center;
  background: var(--bg2);
  border-radius: 6px;
  padding: 2px 8px;
  margin-bottom: 10px;
}

.water-input {
  font-family: 'DM Serif Display', serif;
  font-size: 26px;
  background: transparent;
  border: none;
  color: #EDE8DF;
  width: 100%;
  text-align: center;
  outline: none;
}

.water-input::-webkit-outer-spin-button,
.water-input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

.water-input[type=number] {
  -moz-appearance: textfield;
}

.water-input-unit {
  font-family: 'DM Mono', monospace;
  font-size: 12px;
  color: var(--muted);
}

.step-note {
  font-family: 'DM Mono', monospace;
  font-size: 11px;
  color: var(--muted);
}

.opt-btn {
  width: 100%;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 7px;
  color: var(--muted);
  font-family: 'DM Sans', sans-serif;
  font-size: 13px;
  font-weight: 400;
  padding: 8px 12px;
  cursor: pointer;
  text-align: left;
  margin-bottom: 6px;
  transition: all .15s;
}

.opt-btn:last-child {
  margin-bottom: 0;
}

.opt-btn.active-gold {
  background: var(--gold);
  border-color: var(--gold);
  color: #181512;
  font-weight: 500;
}

.opt-btn.active-sage {
  background: var(--sage);
  border-color: var(--sage);
  color: #181512;
  font-weight: 500;
}

.rhythm-bars {
  display: flex;
  gap: 6px;
  align-items: flex-end;
  height: 80px;
  margin-bottom: 10px;
}

.bar-wrap {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.bar {
  width: 100%;
  border-radius: 3px 3px 0 0;
  transition: height .35s cubic-bezier(.4, 0, .2, 1), opacity .2s;
}

.bar-ml {
  font-family: 'DM Mono', monospace;
  font-size: 9px;
  color: var(--muted);
}

.legend {
  display: flex;
  gap: 20px;
  margin-top: 4px;
}

.leg {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  color: var(--muted);
}

.leg-dot {
  width: 8px;
  height: 8px;
  border-radius: 2px;
  display: inline-block;
}

.steps-label {
  font-family: 'DM Mono', monospace;
  font-size: 10px;
  letter-spacing: .13em;
  color: var(--muted);
  text-transform: uppercase;
  margin: 0 0 10px;
}

.step-row {
  background: var(--bg1);
  border-radius: 10px;
  padding: 14px 18px;
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 6px;
  border-left: 3px solid transparent;
  transition: border-color .2s;
}

.step-title {
  font-weight: 500;
  font-size: 14px;
  margin-bottom: 2px;
}

.step-sub {
  font-size: 11px;
  color: var(--muted);
}

.step-water {
  font-family: 'DM Mono', monospace;
  font-size: 18px;
}

.step-water-unit {
  font-size: 10px;
  color: var(--muted);
}

.timer-btn {
  background: transparent;
  border: 1px solid transparent;
  border-radius: 7px;
  font-family: 'DM Mono', monospace;
  font-size: 13px;
  padding: 7px 14px;
  cursor: pointer;
  min-width: 62px;
  transition: all .15s;
}

.summary {
  background: var(--bg1);
  border-radius: 10px;
  padding: 16px 20px;
  display: flex;
  margin-top: 20px;
}

.sum-cell {
  flex: 1;
  padding-right: 20px;
  border-right: 1px solid var(--border);
}

.sum-cell:last-child {
  border-right: none;
  padding-right: 0;
}

.sum-cell:not(:first-child) {
  padding-left: 20px;
}

.sum-label {
  font-family: 'DM Mono', monospace;
  font-size: 9px;
  letter-spacing: .13em;
  color: var(--muted);
  text-transform: uppercase;
  margin-bottom: 4px;
}

.sum-val {
  font-family: 'DM Serif Display', serif;
  font-size: 20px;
}

/* --- MOBILE RESPONSIVE STYLES --- */
@media (max-width: 650px) {
  header {
    padding: 32px 20px 24px;
  }
  main {
    padding: 24px 20px 60px;
  }
  h1 {
    font-size: 36px;
  }
  .controls {
    grid-template-columns: 1fr;
  }
  .step-row {
    padding: 14px;
    gap: 8px;
  }
  .summary {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px 0;
  }
  .sum-cell {
    border-right: none;
    padding-right: 0;
  }
  .sum-cell:not(:first-child) {
    padding-left: 0;
  }
  .sum-cell:nth-child(odd) {
    border-right: 1px solid var(--border);
  }
  .sum-cell:nth-child(even) {
    padding-left: 20px;
  }
}