:root {
  --bg: #f8fafc;
  --surface: #ffffff;
  --border: #e2e8f0;
  --text: #1e293b;
  --text-muted: #64748b;
  --primary: #0d9488;
  --primary-hover: #0f766e;
  --outline: #94a3b8;
  --success: #059669;
  --error: #dc2626;
  --radius: 12px;
  --radius-lg: 16px;
  --shadow: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-card: 0 4px 12px rgba(0,0,0,0.06);
  --font: 'Plus Jakarta Sans', -apple-system, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  min-height: 100vh;
}

.app {
  max-width: 720px;
  margin: 0 auto;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.hero {
  position: relative;
  padding: 2rem 1.5rem;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, #0d9488 0%, #0f766e 50%, #134e4a 100%);
  opacity: 0.96;
}

.hero-content {
  position: relative;
  z-index: 1;
  color: #fff;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 0.5rem;
}

.brand-icon {
  font-size: 2rem;
}

.brand h1 {
  margin: 0;
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.tagline {
  font-size: 0.8rem;
  padding: 0.25rem 0.6rem;
  background: rgba(255,255,255,0.2);
  border-radius: 999px;
  font-weight: 500;
  margin-left: 0.25rem;
}

.hero-desc {
  margin: 0 0 1.25rem;
  font-size: 0.95rem;
  opacity: 0.95;
}

.api-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
}

.env-row {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  width: 100%;
  margin-bottom: 0.25rem;
}

.env-label {
  font-size: 0.8rem;
  opacity: 0.9;
}

.env-buttons {
  display: flex;
  gap: 0.35rem;
}

.env-btn {
  padding: 0.4rem 0.85rem;
  border: 1px solid rgba(255,255,255,0.5);
  border-radius: 8px;
  font-size: 0.85rem;
  font-weight: 500;
  background: rgba(255,255,255,0.15);
  color: #fff;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
}

.env-btn:hover {
  background: rgba(255,255,255,0.25);
  border-color: rgba(255,255,255,0.7);
}

.env-btn.active {
  background: rgba(255,255,255,0.95);
  color: var(--primary);
  border-color: rgba(255,255,255,0.95);
}

.api-bar label {
  font-size: 0.8rem;
  opacity: 0.9;
}

.api-bar input {
  flex: 1;
  min-width: 200px;
  padding: 0.5rem 0.85rem;
  border: none;
  border-radius: 8px;
  font-size: 0.9rem;
  background: rgba(255,255,255,0.95);
  color: var(--text);
}

.api-bar input::placeholder {
  color: var(--text-muted);
}

.auth-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.75rem;
  background: rgba(255,255,255,0.2);
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 500;
}

.auth-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: rgba(255,255,255,0.6);
}

.auth-pill.logged-in .auth-dot {
  background: #86efac;
}

.main {
  flex: 1;
  padding: 1.5rem;
}

.card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  border: 1px solid var(--border);
  margin-bottom: 1.25rem;
  overflow: hidden;
}

.card-head {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.25rem 1.25rem 0.5rem;
}

.card-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #ccfbf1 0%, #99f6e4 100%);
  color: var(--primary);
  border-radius: 10px;
  font-size: 1.25rem;
  font-weight: 700;
  flex-shrink: 0;
}

.card-head h2 {
  margin: 0 0 0.2rem;
  font-size: 1.15rem;
  font-weight: 600;
}

.card-head p {
  margin: 0;
  font-size: 0.875rem;
  color: var(--text-muted);
}

.card-body {
  padding: 0 1.25rem 1.25rem;
}

.form-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1rem;
}

.field {
  flex: 1;
  min-width: 140px;
}

.field label {
  display: block;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-muted);
  margin-bottom: 0.35rem;
}

.field input,
.field textarea {
  width: 100%;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.9rem;
  font-family: inherit;
}

.field textarea {
  resize: vertical;
  min-height: 80px;
}

.checkbox-label {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  margin-bottom: 1rem;
  cursor: pointer;
}

.checkboxes {
  margin-bottom: 1rem;
}

.checkboxes .checkbox-label {
  display: flex;
  margin-bottom: 0.5rem;
}

.tip {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin: 0 0 1rem;
}

.step-tags {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.step-tag {
  font-size: 0.75rem;
  padding: 0.2rem 0.5rem;
  background: var(--bg);
  border-radius: 6px;
  color: var(--text-muted);
  font-weight: 500;
}

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.btn {
  padding: 0.5rem 1rem;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 500;
  font-family: inherit;
  cursor: pointer;
  border: none;
  transition: background 0.15s, color 0.15s;
}

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

.btn-primary:hover {
  background: var(--primary-hover);
}

.btn-outline {
  background: transparent;
  color: var(--primary);
  border: 1px solid var(--primary);
}

.btn-outline:hover {
  background: rgba(13, 148, 136, 0.08);
}

.response {
  padding: 0.75rem 1rem;
  border-radius: 8px;
  font-size: 0.85rem;
  white-space: pre-wrap;
  word-break: break-word;
  min-height: 2.5rem;
}

.response.empty {
  background: var(--bg);
  color: var(--text-muted);
}

.response.success {
  background: #ecfdf5;
  color: var(--success);
  border: 1px solid #a7f3d0;
}

.response.error {
  background: #fef2f2;
  color: var(--error);
  border: 1px solid #fecaca;
}

.response.small {
  min-height: 1.5rem;
  font-size: 0.8rem;
}

.card-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
}

.card.half {
  flex: 1;
  min-width: 280px;
}

.footer {
  padding: 1rem 1.5rem;
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border);
}