:root {
  --color-bg: #f6f8f9;
  --color-surface: #ffffff;
  --color-text: #16242e;
  --color-text-muted: #5a6b75;
  --color-primary: #0f6e8c;
  --color-primary-dark: #0a4f64;
  --color-accent: #e8853b;
  --color-success: #1f8a4c;
  --color-error: #c0392b;
  --color-border: #e1e7ea;
  --radius: 14px;
  --shadow: 0 6px 24px rgba(15, 60, 75, 0.08);
  --max-width: 1080px;
  font-size: 16px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Segoe UI", system-ui, -apple-system, Roboto, Helvetica, Arial, sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.5;
}

a {
  color: var(--color-primary);
}

.site-header {
  background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
  color: white;
  padding: 28px 20px;
}

.site-header .header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand .logo {
  font-size: 30px;
}

.brand h1 {
  font-size: 1.3rem;
  margin: 0;
}

.brand p {
  margin: 2px 0 0;
  font-size: 0.85rem;
  opacity: 0.85;
}

.coverage-pill {
  background: rgba(255, 255, 255, 0.16);
  border-radius: 999px;
  padding: 6px 14px;
  font-size: 0.8rem;
  white-space: nowrap;
}

main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 28px 20px 100px;
}

.section-title {
  font-size: 1.2rem;
  margin: 0 0 16px;
  color: var(--color-primary-dark);
}

.catalog-subtitle {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  margin: -8px 0 18px;
}

.catalog-category {
  margin-bottom: 28px;
}

.catalog-category-title {
  font-size: 1rem;
  color: var(--color-primary-dark);
  margin: 0 0 12px;
}

.catalog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
}

.product-card {
  background: var(--color-surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.product-card .product-emoji {
  font-size: 2.2rem;
}

.product-card .product-image {
  width: 100%;
  height: 140px;
  object-fit: cover;
  border-radius: calc(var(--radius) - 6px);
}

.product-card h3 {
  margin: 0;
  font-size: 1.05rem;
}

.product-card .weight {
  color: var(--color-text-muted);
  font-size: 0.85rem;
}

.product-card .price {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--color-primary-dark);
}

.qty-control {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: auto;
}

.qty-control button {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  border: 1px solid var(--color-border);
  background: var(--color-bg);
  font-size: 1rem;
  cursor: pointer;
}

.qty-control input {
  width: 44px;
  text-align: center;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 6px;
}

.panel {
  background: var(--color-surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 22px;
  margin-bottom: 24px;
}

.checkout-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 24px;
}

@media (max-width: 760px) {
  .checkout-grid {
    grid-template-columns: 1fr;
  }
}

.field {
  margin-bottom: 14px;
}

.field label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--color-text-muted);
}

.field input,
.field textarea {
  width: 100%;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid var(--color-border);
  font-size: 1rem;
  font-family: inherit;
}

.field small {
  color: var(--color-text-muted);
}

.summary-row {
  display: flex;
  justify-content: space-between;
  padding: 6px 0;
  font-size: 0.95rem;
}

.summary-row.total {
  font-weight: 700;
  font-size: 1.1rem;
  border-top: 1px solid var(--color-border);
  margin-top: 8px;
  padding-top: 12px;
}

.btn {
  display: inline-block;
  background: var(--color-accent);
  color: white;
  border: none;
  border-radius: 10px;
  padding: 12px 18px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  text-align: center;
  width: 100%;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

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

.alert {
  border-radius: 10px;
  padding: 12px 14px;
  margin-bottom: 14px;
  font-size: 0.9rem;
}

.alert.info {
  background: #e6f3f7;
  color: var(--color-primary-dark);
}

.alert.success {
  background: #e7f6ec;
  color: var(--color-success);
}

.alert.error {
  background: #fbeae8;
  color: var(--color-error);
}

/* Chat widget */
.chat-bubble {
  position: fixed;
  bottom: 20px;
  right: 20px;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--color-primary);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  box-shadow: var(--shadow);
  cursor: pointer;
  border: none;
  z-index: 50;
}

.chat-window {
  position: fixed;
  bottom: 88px;
  right: 20px;
  width: min(340px, 90vw);
  max-height: 60vh;
  background: var(--color-surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  display: none;
  flex-direction: column;
  z-index: 50;
  overflow: hidden;
}

.chat-window.open {
  display: flex;
}

.chat-window header {
  background: var(--color-primary);
  color: white;
  padding: 12px 14px;
  font-weight: 600;
  font-size: 0.9rem;
}

.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 0.88rem;
}

.chat-msg {
  padding: 8px 10px;
  border-radius: 10px;
  max-width: 85%;
}

.chat-msg.user {
  background: var(--color-primary);
  color: white;
  align-self: flex-end;
}

.chat-msg.bot {
  background: var(--color-bg);
  color: var(--color-text);
  align-self: flex-start;
}

.chat-input-row {
  display: flex;
  border-top: 1px solid var(--color-border);
}

.chat-input-row input {
  flex: 1;
  border: none;
  padding: 12px;
  font-size: 0.9rem;
}

.chat-input-row button {
  border: none;
  background: var(--color-accent);
  color: white;
  padding: 0 16px;
  cursor: pointer;
  font-weight: 600;
}

footer {
  text-align: center;
  color: var(--color-text-muted);
  font-size: 0.8rem;
  padding: 20px;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

table th,
table td {
  text-align: left;
  padding: 10px;
  border-bottom: 1px solid var(--color-border);
}

table th {
  color: var(--color-text-muted);
  font-weight: 600;
  font-size: 0.8rem;
  text-transform: uppercase;
}

.status-tag {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
}

.status-tag.pending {
  background: #fdf0db;
  color: #93650f;
}

.status-tag.approved {
  background: #e7f6ec;
  color: var(--color-success);
}

.status-tag.rejected {
  background: #fbeae8;
  color: var(--color-error);
}

.status-tag.sin_asignar {
  background: #eef0f1;
  color: var(--color-text-muted);
}

.status-tag.programado {
  background: #e6f3f7;
  color: var(--color-primary-dark);
}

.status-tag.entregado {
  background: #e7f6ec;
  color: var(--color-success);
}

.toolbar {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 18px;
  align-items: center;
}

.login-box {
  max-width: 360px;
  margin: 80px auto;
}