:root {
  --bg: #1a1a2e;
  --bg-card: #222244;
  --bg-card-hover: #2a2a50;
  --text: #e0e0e8;
  --text-dim: #8888aa;
  --accent: #e8a850;
  --accent-dim: #c08030;
  --danger: #d04040;
  --success: #40a060;
  --radius: 12px;
  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'SF Mono', 'Fira Code', monospace;
}

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

html,
body {
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.5;
  -webkit-tap-highlight-color: transparent;
  user-select: none;
}

#app {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.hidden {
  display: none !important;
}

/* Load Screen */
#load-screen {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.load-inner {
  text-align: center;
  max-width: 400px;
  width: 100%;
}

.brand {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.5px;
  color: var(--accent);
  margin-bottom: 8px;
}

.sub {
  color: var(--text-dim);
  margin-bottom: 32px;
  font-size: 0.95rem;
}

.load-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  margin-bottom: 24px;
}

.url-hint {
  font-size: 0.78rem;
  color: var(--text-dim);
  margin-top: 24px;
}

/* Paste Area */
.paste-area {
  margin-top: 16px;
}

.paste-area textarea {
  width: 100%;
  height: 200px;
  background: var(--bg-card);
  border: 1px solid #333366;
  border-radius: var(--radius);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  padding: 12px;
  resize: vertical;
}

.paste-area textarea:focus {
  outline: none;
  border-color: var(--accent);
}

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

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 24px;
  border: none;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  background: var(--accent);
  color: #1a1a2e;
  transition: opacity 0.15s;
}

.btn:active {
  opacity: 0.8;
}

.btn-ghost {
  background: transparent;
  color: var(--text-dim);
  border: 1px solid #333366;
}

.btn-primary {
  background: var(--accent);
  color: #1a1a2e;
  font-size: 1.05rem;
  padding: 14px 32px;
}

.btn-large {
  width: 100%;
  margin-top: 16px;
}

.btn-icon {
  background: none;
  border: none;
  color: var(--text-dim);
  font-size: 1.3rem;
  cursor: pointer;
  padding: 8px;
}

.btn-timer {
  background: var(--success);
  color: #fff;
  font-size: 1.1rem;
  padding: 12px 28px;
}

.error {
  color: var(--danger);
  font-size: 0.85rem;
  margin-top: 12px;
}

/* Brew Screen */
#brew-screen {
  flex: 1;
  display: flex;
  flex-direction: column;
  max-width: 520px;
  width: 100%;
  margin: 0 auto;
}

#brew-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border-bottom: 1px solid #222244;
}

.header-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

#header-name {
  font-size: 0.95rem;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.header-step {
  font-size: 0.75rem;
  color: var(--text-dim);
}

#brew-main {
  flex: 1;
  padding: 16px;
  overflow-y: auto;
}

/* Cards */
.card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 12px;
}

.card-sm {
  padding: 16px;
}

.card h2 {
  font-size: 1.25rem;
  margin-bottom: 4px;
}

.card h3 {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-dim);
  margin-bottom: 6px;
}

.meta {
  font-size: 0.85rem;
  color: var(--text-dim);
}

.param-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  font-size: 0.9rem;
}

.param-grid .param-item {
  display: flex;
  flex-direction: column;
}

.param-grid .param-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  color: var(--text-dim);
}

.param-grid .param-value {
  font-weight: 600;
}

/* Step View */
.step-progress {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 20px;
}

.progress-bar {
  flex: 1;
  height: 4px;
  background: #333366;
  border-radius: 2px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: var(--accent);
  border-radius: 2px;
  transition: width 0.3s;
}

#progress-text {
  font-size: 0.8rem;
  color: var(--text-dim);
  white-space: nowrap;
}

.step-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 28px 24px;
  text-align: center;
}

.step-badge {
  display: inline-block;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  padding: 4px 12px;
  border-radius: 20px;
  background: #333366;
  color: var(--accent);
  margin-bottom: 16px;
}

.step-action {
  font-size: 1.6rem;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 8px;
}

.step-desc {
  font-size: 0.95rem;
  color: var(--text-dim);
  margin-bottom: 20px;
  line-height: 1.6;
}

.step-water {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-bottom: 12px;
  padding: 12px;
  background: rgba(232, 168, 80, 0.08);
  border-radius: 8px;
}

.water-label {
  font-size: 0.75rem;
  color: var(--text-dim);
  text-transform: uppercase;
}

.water-value {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--accent);
}

.water-target {
  font-size: 0.85rem;
  color: var(--text-dim);
}

.step-pour {
  display: flex;
  gap: 12px;
  justify-content: center;
  margin-bottom: 16px;
  font-size: 0.85rem;
  color: var(--text-dim);
}

.timer {
  margin-bottom: 20px;
}

#timer-value {
  font-size: 3.5rem;
  font-weight: 300;
  font-family: var(--font-mono);
  letter-spacing: 2px;
  color: var(--accent);
}

.step-controls {
  display: flex;
  flex-direction: column;
  gap: 10px;
  align-items: center;
}

/* Done */
.done-card {
  text-align: center;
  padding: 32px 24px;
}

.done-card h2 {
  font-size: 1.5rem;
  margin-bottom: 8px;
  color: var(--success);
}

#done-msg {
  color: var(--text-dim);
  margin-bottom: 20px;
}

#done-result {
  text-align: left;
  margin-bottom: 20px;
}

#done-result h3 {
  margin-bottom: 10px;
}

#done-result-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  font-size: 0.9rem;
}

.result-item {
  display: flex;
  flex-direction: column;
}

.result-label {
  font-size: 0.7rem;
  color: var(--text-dim);
  text-transform: uppercase;
}

.result-value {
  font-weight: 600;
}

.done-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
}

/* Responsive */
@media (max-width: 400px) {
  .brand {
    font-size: 1.6rem;
  }
  .step-action {
    font-size: 1.3rem;
  }
  #timer-value {
    font-size: 2.8rem;
  }
  .water-value {
    font-size: 1.4rem;
  }
}