:root {
  --paper: #F7F3EC;
  --kraft: #D8B98C;
  --ink: #23201B;
  --ink-soft: #55503f;
  --moss: #46592F;
  --rust: #A6391C;
  --whatsapp: #25D366;
  --danger: #A6391C;
  --font-display: "Anton", sans-serif;
  --font-body: "Work Sans", -apple-system, sans-serif;
  --font-mono: "JetBrains Mono", monospace;
}

* { box-sizing: border-box; }
html, body {
  margin: 0; padding: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
}

/* ---------- Login ---------- */
#login-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}
.login-box {
  background: #fff;
  border: 2px solid var(--ink);
  border-radius: 6px;
  padding: 32px;
  width: 100%;
  max-width: 340px;
  box-shadow: 6px 6px 0 rgba(35,32,27,0.15);
}
.login-box h1 {
  font-family: var(--font-display);
  text-transform: uppercase;
  font-size: 1.6rem;
  margin: 0 0 4px;
}
.login-box p { color: var(--ink-soft); font-size: 0.9rem; margin: 0 0 20px; }
.login-box input {
  width: 100%;
  padding: 12px;
  border: 1.5px solid var(--ink);
  border-radius: 4px;
  font-size: 1rem;
  margin-bottom: 12px;
}
.login-box button, .btn {
  width: 100%;
  padding: 12px;
  background: var(--ink);
  color: var(--paper);
  border: none;
  border-radius: 4px;
  font-weight: 600;
  cursor: pointer;
  font-size: 0.95rem;
}
.login-error { color: var(--danger); font-size: 0.85rem; margin-bottom: 10px; display: none; }
.login-error:not(:empty) { display: block; }
.login-success {
  color: var(--moss);
  font-size: 0.85rem;
  margin-bottom: 10px;
  display: none;
}
.login-success:not(:empty) { display: block; }
.link-btn {
  width: 100%;
  background: none;
  border: none;
  color: var(--ink-soft);
  font-size: 0.82rem;
  text-decoration: underline;
  cursor: pointer;
  margin-top: 12px;
  padding: 4px;
}

/* ---------- App shell ---------- */
#app-screen { min-height: 100vh; }

.topbar {
  background: var(--ink);
  color: var(--paper);
  padding: 14px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.topbar .brand {
  font-family: var(--font-display);
  text-transform: uppercase;
  font-size: 1.1rem;
}
.topbar button {
  background: transparent;
  border: 1px solid var(--paper);
  color: var(--paper);
  padding: 6px 12px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 0.8rem;
}

.tabs {
  display: flex;
  border-bottom: 2px solid var(--ink);
  background: #fff;
}
.tabs button {
  flex: 1;
  padding: 14px;
  background: none;
  border: none;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  cursor: pointer;
  border-bottom: 3px solid transparent;
}
.tabs button.active { border-bottom-color: var(--rust); font-weight: 700; }

main { max-width: 900px; margin: 0 auto; padding: 20px; }
.panel { display: none; }
.panel.active { display: block; }

/* ---------- Dashboard ---------- */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 14px;
  margin-bottom: 24px;
}
.stat-card {
  background: #fff;
  border: 1.5px solid var(--ink);
  border-radius: 6px;
  padding: 16px;
}
.stat-card .n {
  font-family: var(--font-mono);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--moss);
}
.stat-card .label {
  font-size: 0.78rem;
  color: var(--ink-soft);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.section-title {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--ink-soft);
  margin: 24px 0 10px;
}

table { width: 100%; border-collapse: collapse; background: #fff; }
th, td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid rgba(35,32,27,0.15);
  font-size: 0.9rem;
}
th { font-family: var(--font-mono); font-size: 0.75rem; text-transform: uppercase; color: var(--ink-soft); }

/* ---------- Products panel ---------- */
.product-form {
  background: #fff;
  border: 1.5px solid var(--ink);
  border-radius: 6px;
  padding: 18px;
  margin-bottom: 24px;
}
.product-form h3 { margin-top: 0; font-size: 1rem; }
.form-row { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 10px; }
.form-row > div { flex: 1 1 140px; }
label { font-size: 0.78rem; color: var(--ink-soft); display: block; margin-bottom: 4px; }
input[type="text"], input[type="number"], input[type="file"], select {
  width: 100%;
  padding: 9px;
  border: 1.5px solid var(--ink);
  border-radius: 4px;
  font-size: 0.9rem;
  font-family: inherit;
}
.btn-save { background: var(--moss); color: #fff; width: auto; padding: 10px 18px; }
.btn-cancel { background: var(--ink-soft); color: #fff; width: auto; padding: 10px 18px; margin-left: 8px; }

.product-list-item {
  display: flex;
  align-items: center;
  gap: 12px;
  background: #fff;
  border: 1px solid rgba(35,32,27,0.2);
  border-radius: 6px;
  padding: 10px;
  margin-bottom: 8px;
}
.product-list-item img { width: 52px; height: 52px; object-fit: cover; border-radius: 4px; flex-shrink: 0; }
.product-list-item .info { flex: 1; min-width: 0; }
.product-list-item .info .name { font-weight: 600; font-size: 0.92rem; }
.product-list-item .info .meta { font-size: 0.78rem; color: var(--ink-soft); font-family: var(--font-mono); }
.product-list-item .actions { display: flex; gap: 6px; }
.icon-btn {
  background: var(--paper);
  border: 1px solid var(--ink);
  border-radius: 4px;
  padding: 6px 10px;
  cursor: pointer;
  font-size: 0.78rem;
}
.icon-btn.delete { color: var(--danger); border-color: var(--danger); }

.loading, .empty { color: var(--ink-soft); font-size: 0.9rem; padding: 16px 0; }

/* ---------- Multi-image preview styles ---------- */
.image-preview-container {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 10px;
  padding: 10px;
  background: var(--paper);
  border: 1px dashed var(--ink);
  border-radius: 6px;
}

.preview-thumb {
  position: relative;
  width: 84px;
  height: 84px;
  border-radius: 6px;
  overflow: hidden;
  border: 2px solid var(--ink-soft);
  background: #fff;
  flex-shrink: 0;
}

.preview-thumb.is-cover {
  border-color: var(--moss);
  border-width: 3px;
  box-shadow: 0 0 0 2px rgba(70, 89, 47, 0.3);
}

.preview-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.preview-thumb .cover-badge {
  position: absolute;
  top: 2px;
  left: 2px;
  background: var(--moss);
  color: #fff;
  font-size: 0.58rem;
  font-weight: 700;
  padding: 2px 4px;
  border-radius: 3px;
  text-transform: uppercase;
}

.preview-thumb .thumb-actions {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(0, 0, 0, 0.75);
  display: flex;
  justify-content: space-around;
  padding: 3px 2px;
}

.thumb-btn {
  background: none;
  border: none;
  color: #fff;
  font-size: 0.65rem;
  cursor: pointer;
  padding: 1px 3px;
}
.thumb-btn:hover {
  text-decoration: underline;
}
.thumb-btn.delete-thumb {
  color: #ff6b6b;
}