@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&family=JetBrains+Mono:wght@500;600;700&display=swap');

:root {
  --bg: #FAF7F2;
  --bg-gradient: radial-gradient(circle at 15% 10%, rgba(217, 119, 6, 0.06) 0%, transparent 40%),
                 radial-gradient(circle at 85% 80%, rgba(5, 150, 105, 0.05) 0%, transparent 45%);
  --card-bg: #FFFFFF;
  --card-border: #E8E1D5;
  --card-shadow: 0 4px 16px rgba(45, 37, 30, 0.04), 0 1px 3px rgba(45, 37, 30, 0.03);
  --card-shadow-hover: 0 8px 24px rgba(217, 119, 6, 0.12), 0 2px 6px rgba(45, 37, 30, 0.04);
  
  --text-main: #2D251E;
  --text-muted: #786C5E;
  --text-dim: #A89D8F;
  
  --primary-amber: #D97706;
  --primary-amber-dark: #B45309;
  --amber-soft: #FEF3C7;
  --amber-tint: rgba(217, 119, 6, 0.08);
  
  --accent-green: #059669;
  --green-soft: #D1FAE5;
  
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, Menlo, monospace;
}

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

body {
  background-color: var(--bg);
  background-image: var(--bg-gradient);
  background-attachment: fixed;
  color: var(--text-main);
  font-family: var(--font-sans);
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

/* Site Header */
.site-header {
  border-bottom: 1px solid var(--card-border);
  background-color: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: 50;
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 20px;
}

.back-link {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 600;
  transition: color 0.15s ease;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.back-link:hover {
  color: var(--primary-amber);
}

.status-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background-color: var(--amber-soft);
  color: var(--primary-amber-dark);
  font-size: 0.78rem;
  font-weight: 700;
  padding: 5px 12px;
  border-radius: 9999px;
  border: 1px solid rgba(217, 119, 6, 0.25);
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
}

.chip-dot {
  width: 7px;
  height: 7px;
  background-color: var(--primary-amber);
  border-radius: 50%;
  box-shadow: 0 0 6px rgba(217, 119, 6, 0.6);
  animation: pulse-dot 2s infinite ease-in-out;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.85); }
}

.container {
  max-width: 980px;
  margin: 0 auto;
}

.app-container {
  padding: 32px 20px 64px;
}

/* Page Header */
header {
  margin-bottom: 24px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background-color: var(--amber-soft);
  color: var(--primary-amber-dark);
  border: 1px solid rgba(217, 119, 6, 0.25);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  padding: 5px 12px;
  border-radius: 9999px;
  margin-bottom: 14px;
}

h1 {
  font-size: 2.2rem;
  font-weight: 800;
  letter-spacing: -0.025em;
  line-height: 1.2;
  color: var(--text-main);
  margin-bottom: 10px;
}

.subtitle {
  color: var(--text-muted);
  font-size: 1.05rem;
  max-width: 780px;
  line-height: 1.55;
}

/* Pet Selector Tabs */
.pet-tabs {
  display: flex;
  gap: 12px;
  margin-bottom: 28px;
}

.pet-tab {
  background: var(--card-bg);
  border: 2px solid var(--card-border);
  color: var(--text-muted);
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 700;
  padding: 12px 26px;
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: var(--card-shadow);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.pet-tab:hover {
  border-color: var(--primary-amber);
  color: var(--text-main);
  transform: translateY(-1px);
}

.pet-tab.active {
  background: #FFFDF9;
  border-color: var(--primary-amber);
  color: var(--primary-amber-dark);
  box-shadow: 0 4px 14px rgba(217, 119, 6, 0.18);
}

/* Layout */
.calculator-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 26px;
  margin-bottom: 36px;
}

@media (max-width: 860px) {
  .calculator-grid {
    grid-template-columns: 1fr;
  }
}

.card {
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 16px;
  padding: 26px;
  box-shadow: var(--card-shadow);
}

.results-card {
  background: linear-gradient(180deg, #FFFFFF 0%, #FFFDF7 100%);
  border: 1px solid rgba(217, 119, 6, 0.35);
  border-radius: 16px;
  padding: 26px;
  box-shadow: 0 6px 20px rgba(217, 119, 6, 0.08), 0 1px 3px rgba(45, 37, 30, 0.03);
  display: flex;
  flex-direction: column;
}

.card-title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--text-main);
}

.grid-2col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group label {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 600;
}

select, input[type="number"] {
  width: 100%;
  box-sizing: border-box;
  display: block;
  background-color: #FAF8F5;
  border: 1px solid var(--card-border);
  color: var(--text-main);
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 600;
  padding: 11px 14px;
  border-radius: 10px;
  outline: none;
  transition: all 0.15s ease;
}

select:focus, input[type="number"]:focus {
  background-color: #FFFFFF;
  border-color: var(--primary-amber);
  box-shadow: 0 0 0 3px rgba(217, 119, 6, 0.15);
}

.divider {
  height: 1px;
  background: var(--card-border);
  margin: 22px 0;
}

/* Results Highlight */
.highlight-box {
  background: var(--amber-soft);
  border: 1px solid rgba(217, 119, 6, 0.28);
  border-radius: 12px;
  padding: 18px 20px;
  text-align: center;
  margin-bottom: 18px;
}

.highlight-label {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--primary-amber-dark);
  font-weight: 700;
  margin-bottom: 4px;
}

.highlight-value {
  font-family: var(--font-mono);
  font-size: 2.3rem;
  font-weight: 700;
  color: var(--primary-amber-dark);
  line-height: 1.1;
  font-variant-numeric: tabular-nums;
}

.highlight-subtext {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-main);
  margin-top: 6px;
}

/* Bowl Canvas */
.canvas-wrapper {
  position: relative;
  width: 100%;
  height: 175px;
  background: radial-gradient(ellipse at 50% 90%, #FFFFFF 0%, #F5EFEB 60%, #EAE2D8 100%);
  border-radius: 14px;
  border: 1px solid #DCD4C7;
  overflow: hidden;
  margin-bottom: 20px;
  box-shadow: inset 0 2px 8px rgba(45, 37, 30, 0.05);
}

#bowlCanvas {
  width: 100%;
  height: 100%;
  display: block;
}

.canvas-overlay {
  position: absolute;
  top: 10px;
  left: 12px;
  right: 12px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  pointer-events: none;
}

.bowl-tag {
  background: rgba(45, 37, 30, 0.75);
  color: #FFFFFF;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  padding: 3px 8px;
  border-radius: 6px;
}

.ration-tag {
  background: rgba(217, 119, 6, 0.9);
  color: #FFFFFF;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 6px;
}

/* Breakdown List */
.breakdown-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 22px;
}

.breakdown-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 10px;
  border-bottom: 1px dashed var(--card-border);
  gap: 12px;
}

.breakdown-row:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.breakdown-label {
  font-size: 0.88rem;
  color: var(--text-muted);
  flex: 1;
}

.breakdown-val {
  font-family: var(--font-mono);
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--text-main);
  text-align: right;
  max-width: 55%;
}

.amber-color {
  color: var(--primary-amber-dark);
}

.green-color {
  color: var(--accent-green);
}

/* Print Button */
.btn-print {
  margin-top: auto;
  background: var(--primary-amber);
  color: #FFFFFF;
  border: none;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 700;
  padding: 13px 20px;
  border-radius: 12px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: all 0.2s ease;
  box-shadow: 0 4px 12px rgba(217, 119, 6, 0.25);
}

.btn-print:hover {
  background: var(--primary-amber-dark);
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(217, 119, 6, 0.35);
}

/* Table Section */
.section-card {
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 16px;
  padding: 26px;
  margin-bottom: 32px;
  box-shadow: var(--card-shadow);
}

.section-title {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.015em;
  color: var(--text-main);
  margin-bottom: 18px;
}

.table-wrapper {
  overflow-x: auto;
  border-radius: 10px;
  border: 1px solid var(--card-border);
}

table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.88rem;
}

thead th {
  background-color: #FAF7F2;
  color: var(--text-main);
  font-weight: 700;
  padding: 12px 14px;
  border-bottom: 2px solid var(--card-border);
  white-space: nowrap;
}

tbody td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--card-border);
  color: var(--text-muted);
}

tbody tr:last-child td {
  border-bottom: none;
}

tbody tr:nth-child(even) {
  background-color: #FCFAF7;
}

tr.highlight-row {
  background-color: var(--amber-soft) !important;
  font-weight: 600;
}

tr.highlight-row td {
  color: var(--primary-amber-dark);
}

/* Tips Grid */
.tips-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 36px;
}

@media (max-width: 768px) {
  .tips-grid {
    grid-template-columns: 1fr;
  }
}

.tip-card {
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 14px;
  padding: 20px;
  box-shadow: var(--card-shadow);
}

.tip-icon {
  font-size: 1.8rem;
  margin-bottom: 10px;
}

.tip-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 6px;
}

.tip-desc {
  font-size: 0.86rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* Related Tools */
.related-tools-section {
  margin-bottom: 36px;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 16px;
}

@media (max-width: 768px) {
  .related-grid {
    grid-template-columns: 1fr;
  }
}

.related-card {
  display: flex;
  flex-direction: column;
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 14px;
  padding: 18px;
  text-decoration: none;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: var(--card-shadow);
}

.related-card:hover {
  transform: translateY(-2px);
  border-color: var(--primary-amber);
  box-shadow: var(--card-shadow-hover);
}

.related-emoji {
  font-size: 1.6rem;
  margin-bottom: 8px;
}

.related-name {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 4px;
}

.related-desc {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.45;
}

/* FAQ Section */
.faq-section {
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 16px;
  padding: 28px;
  margin-bottom: 40px;
  box-shadow: var(--card-shadow);
}

.faq-title {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 20px;
}

.faq-item {
  border-bottom: 1px solid var(--card-border);
  padding: 16px 0;
}

.faq-item:first-of-type {
  padding-top: 0;
}

.faq-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.faq-q {
  font-size: 0.98rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 8px;
}

.faq-a {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* Footer */
footer {
  border-top: 1px solid var(--card-border);
  padding-top: 24px;
  text-align: center;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}

.footer-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 600;
  transition: color 0.15s ease;
}

.footer-links a:hover {
  color: var(--primary-amber);
}

.footer-contact {
  font-size: 0.82rem;
  color: var(--text-dim);
}

.footer-contact a {
  color: var(--text-muted);
  text-decoration: underline;
}

.footer-contact a:hover {
  color: var(--primary-amber);
}

/* Mobile responsive */
@media (max-width: 480px) {
  .app-container {
    padding: 20px 14px 48px;
  }

  h1 {
    font-size: 1.7rem;
  }

  .grid-2col {
    grid-template-columns: 1fr;
  }

  .breakdown-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }

  .breakdown-val {
    text-align: left;
    max-width: 100%;
  }

  .highlight-value {
    font-size: 1.9rem;
  }
}

/* Print styles */
@media print {
  .site-header, .pet-tabs, .btn-print, .related-tools-section, .tips-grid, .faq-section, footer {
    display: none !important;
  }

  body {
    background: #FFFFFF;
    color: #000000;
    padding: 0;
  }

  .card, .results-card, .section-card {
    border: 1px solid #CCCCCC;
    box-shadow: none;
    break-inside: avoid;
  }
}

/* Amazon Associates Gear Box */
.affiliate-box {
  background: var(--bg-card);
  border: 1px solid rgba(245, 158, 11, 0.3);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  margin-top: 1.5rem;
}
.affiliate-box h3 {
  font-family: var(--font-heading);
  font-size: 1rem;
  color: #f59e0b;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  margin-bottom: 0.75rem;
}
.affiliate-links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 0.6rem;
}
.affiliate-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-card-inner);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 0.65rem 0.85rem;
  color: var(--text-main);
  text-decoration: none;
  font-size: 0.82rem;
  font-family: var(--font-mono);
  transition: all 0.15s ease;
}
.affiliate-btn:hover {
  border-color: #f59e0b;
  background: rgba(245, 158, 11, 0.1);
  color: #fff;
}
.affiliate-badge {
  font-size: 0.68rem;
  background: rgba(245, 158, 11, 0.15);
  color: #f59e0b;
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
}
.amazon-disclosure {
  font-size: 0.72rem;
  color: var(--text-dim);
  margin-top: 0.65rem;
  text-align: center;
}