:root {
  --bg: #f6f4f4;
  --sidebar-bg: #1e1e1e;
  --sidebar-text: #c8c8c8;
  --accent: #8b1a2f;
  --accent-hover: #6d1424;
  --accent-light: rgba(139, 26, 47, 0.09);
  --text: #1a1a1a;
  --border: #e0dede;
  --card: #ffffff;
  --muted: #6b7280;
  --danger: #dc2626;
  --danger-hover: #b91c1c;
  --success: #16a34a;
  --warning: #d97706;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 14px;
  color: var(--text);
  background: var(--bg);
}

/* ── Login ─────────────────────────────────────────────────────────────────── */
.login-body { background: #f0ecec; }

.login-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 24px;
}

.login-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 44px 40px;
  width: 380px;
  box-shadow: 0 8px 40px rgba(0,0,0,0.10);
}

.login-header {
  text-align: center;
  margin-bottom: 32px;
}

.login-logo {
  width: 72px;
  height: 72px;
  object-fit: contain;
  margin-bottom: 14px;
  display: block;
  margin-left: auto;
  margin-right: auto;
}

.login-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.2px;
}

.login-sub {
  font-size: 13px;
  color: var(--accent);
  font-weight: 500;
  margin-top: 3px;
  letter-spacing: 0.4px;
  text-transform: uppercase;
}

/* ── Admin layout ──────────────────────────────────────────────────────────── */
.layout {
  display: flex;
  height: 100vh;
  overflow: hidden;
}

/* ── Sidebar ───────────────────────────────────────────────────────────────── */
.sidebar {
  width: 224px;
  flex-shrink: 0;
  background: var(--sidebar-bg);
  display: flex;
  flex-direction: column;
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 20px 18px;
  border-bottom: 1px solid rgba(255,255,255,0.07);
}

.sidebar-logo-img {
  width: 36px;
  height: 36px;
  object-fit: contain;
  flex-shrink: 0;
  border-radius: 4px;
}

.sidebar-brand-name {
  font-size: 13px;
  font-weight: 700;
  color: #fff;
  line-height: 1.2;
  letter-spacing: -0.1px;
}

.sidebar-brand-sub {
  display: block;
  font-size: 10px;
  font-weight: 400;
  color: rgba(255,255,255,0.38);
  letter-spacing: 0.5px;
  text-transform: uppercase;
  margin-top: 2px;
}

.sidebar nav {
  flex: 1;
  padding: 10px 0;
  overflow-y: auto;
}

.nav-link {
  display: block;
  padding: 9px 18px;
  color: var(--sidebar-text);
  text-decoration: none;
  cursor: pointer;
  border-left: 3px solid transparent;
  font-size: 13.5px;
  transition: background 0.12s, color 0.12s;
  user-select: none;
}

.nav-link:hover { background: rgba(255,255,255,0.06); color: #fff; }
.nav-link.active { background: var(--accent-light); color: #fff; border-left-color: var(--accent); }

.sidebar-footer {
  padding: 14px 16px;
  border-top: 1px solid rgba(255,255,255,0.07);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.btn-viewer-mode {
  display: block;
  width: 100%;
  padding: 8px 12px;
  background: rgba(139,26,47,0.18);
  border: 1px solid rgba(139,26,47,0.4);
  border-radius: 6px;
  color: #f0aab8;
  font-size: 12.5px;
  font-family: inherit;
  font-weight: 500;
  cursor: pointer;
  text-align: center;
  text-decoration: none;
  transition: background 0.13s, border-color 0.13s;
}
.btn-viewer-mode:hover { background: rgba(139,26,47,0.28); border-color: rgba(139,26,47,0.6); }

.btn-logout {
  display: block;
  width: 100%;
  padding: 8px 12px;
  background: transparent;
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: 6px;
  color: var(--sidebar-text);
  font-size: 12.5px;
  font-family: inherit;
  cursor: pointer;
  text-align: left;
  transition: background 0.13s, color 0.13s;
}
.btn-logout:hover { background: rgba(255,255,255,0.07); color: #fff; }

/* ── Main area ─────────────────────────────────────────────────────────────── */
.main {
  flex: 1;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.page-header {
  padding: 24px 32px 0;
  border-bottom: 1px solid var(--border);
  background: var(--card);
  flex-shrink: 0;
  text-align: center;
}

.page-title {
  font-size: 28px;
  font-weight: 700;
  color: var(--accent);
  padding-bottom: 20px;
  letter-spacing: -0.4px;
}

.main-content {
  flex: 1;
  padding: 28px 32px;
  overflow-y: auto;
}

.section { display: none; }
.section.active { display: block; }

/* ── Typography ────────────────────────────────────────────────────────────── */
h2 { font-size: 17px; font-weight: 700; }
h3 { font-size: 14px; font-weight: 600; }
h4 { font-size: 13px; font-weight: 600; color: var(--muted); text-transform: uppercase; letter-spacing: 0.4px; }

code {
  font-family: 'SFMono-Regular', Consolas, monospace;
  font-size: 12px;
  background: #f1eded;
  padding: 1px 5px;
  border-radius: 3px;
  color: var(--accent);
}

/* ── Section top row ───────────────────────────────────────────────────────── */
.section-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.search-box {
  padding: 7px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 13.5px;
  font-family: inherit;
  background: #fff;
  color: var(--text);
  width: 240px;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.search-box:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(139,26,47,0.10);
}

/* ── Cards ─────────────────────────────────────────────────────────────────── */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 20px 22px;
  margin-bottom: 18px;
}
.card.p-0 { padding: 0; }

/* ── Forms ─────────────────────────────────────────────────────────────────── */
.form-group { margin-bottom: 14px; }

.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 14px;
}

label {
  display: block;
  font-size: 12.5px;
  font-weight: 600;
  margin-bottom: 5px;
  color: #4b5563;
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

input[type=text], input[type=password], input[type=search], textarea, select {
  display: block;
  width: 100%;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 14px;
  font-family: inherit;
  background: #fff;
  color: var(--text);
  transition: border-color 0.15s, box-shadow 0.15s;
}

input[type=text]:focus, input[type=password]:focus, input[type=search]:focus,
textarea:focus, select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(139,26,47,0.10);
}

textarea { resize: vertical; min-height: 96px; }

/* ── Buttons ───────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: 6px;
  border: 1px solid transparent;
  font-size: 13.5px;
  font-family: inherit;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.13s, border-color 0.13s, color 0.13s;
  white-space: nowrap;
  text-decoration: none;
}

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

.btn-secondary { background: #f7f5f5; color: var(--text); border-color: var(--border); }
.btn-secondary:hover { background: #eeecec; }

.btn-ghost { background: transparent; color: var(--muted); border-color: transparent; }
.btn-ghost:hover { background: #f1eded; color: var(--text); }

.btn-danger { background: var(--danger); color: #fff; border-color: transparent; }
.btn-danger:hover { background: var(--danger-hover); }

.btn-sm { padding: 5px 10px; font-size: 12.5px; }

.text-danger { color: var(--danger) !important; }
.text-danger:hover { color: var(--danger-hover) !important; }

/* ── Table ─────────────────────────────────────────────────────────────────── */
.table-wrap { overflow-x: auto; }

table { width: 100%; border-collapse: collapse; }

th {
  text-align: left;
  padding: 10px 14px;
  font-size: 10.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.7px;
  color: var(--muted);
  background: #faf9f9;
  border-bottom: 1px solid var(--border);
}

td {
  padding: 11px 14px;
  border-bottom: 1px solid #f0eeed;
  vertical-align: middle;
}

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

.clickable-row { cursor: pointer; }
.clickable-row:hover td { background: #fdf5f6 !important; }

.lot-num {
  font-family: 'SFMono-Regular', Consolas, monospace;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
}

/* ── Badges ─────────────────────────────────────────────────────────────────── */
.badge {
  display: inline-block;
  padding: 2px 9px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.3px;
}
.badge-ok   { background: #dcfce7; color: #166534; }
.badge-miss { background: #fef3c7; color: #92400e; }

/* ── Alerts ─────────────────────────────────────────────────────────────────── */
.alert {
  padding: 10px 14px;
  border-radius: 6px;
  margin-bottom: 10px;
  font-size: 13px;
  line-height: 1.5;
}
.alert-success { background: #f0fdf4; color: #15803d; border: 1px solid #bbf7d0; }
.alert-error   { background: #fef2f2; color: #b91c1c; border: 1px solid #fecaca; }
.alert-info    { background: #eff6ff; color: #1d4ed8; border: 1px solid #bfdbfe; }
.alert-warn    { background: #fffbeb; color: #b45309; border: 1px solid #fde68a; }

/* ── Upload zone ─────────────────────────────────────────────────────────────── */
.upload-zone {
  border: 2px dashed var(--border);
  border-radius: 8px;
  padding: 36px 24px;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
  color: var(--muted);
  user-select: none;
}

.upload-zone:hover, .upload-zone.drag-over {
  border-color: var(--accent);
  background: var(--accent-light);
  color: var(--accent);
}

.upload-icon { font-size: 28px; margin-bottom: 8px; }
.upload-zone p { font-size: 14px; }
.upload-zone small { font-size: 12px; display: block; margin-top: 4px; opacity: 0.7; }

.upload-zone-sm {
  border: 2px dashed var(--border);
  border-radius: 7px;
  padding: 20px 16px;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
  color: var(--muted);
  font-size: 13px;
  user-select: none;
}
.upload-zone-sm:hover, .upload-zone-sm.drag-over {
  border-color: var(--accent);
  background: var(--accent-light);
  color: var(--accent);
}
.upload-zone-sm small { font-size: 11.5px; display: block; margin-top: 4px; opacity: 0.7; }

/* ── Lot detail ─────────────────────────────────────────────────────────────── */
.detail-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 4px;
  flex-wrap: wrap;
  gap: 12px;
}

.lot-heading {
  font-size: 22px;
  font-weight: 700;
  color: var(--text);
}

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

.current-invoice {
  background: #faf9f9;
  border: 1px solid var(--border);
  border-radius: 7px;
  padding: 12px 14px;
  margin-bottom: 6px;
}

.attach-section { margin-top: 16px; padding-top: 16px; border-top: 1px solid var(--border); }

.tab-btns {
  display: flex;
  gap: 0;
  margin: 10px 0;
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow: hidden;
  width: fit-content;
}

.tab-btn {
  padding: 6px 14px;
  font-size: 12.5px;
  font-family: inherit;
  font-weight: 500;
  border: none;
  background: #f7f5f5;
  color: var(--muted);
  cursor: pointer;
  transition: background 0.13s, color 0.13s;
}
.tab-btn + .tab-btn { border-left: 1px solid var(--border); }
.tab-btn.active { background: var(--accent); color: #fff; }
.tab-btn:hover:not(.active) { background: #eeecec; color: var(--text); }

.tab-content { padding-top: 4px; }

/* ── Lot meta (viewer) ──────────────────────────────────────────────────────── */
.lot-meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px;
  margin: 14px 0;
}

.meta-item {
  background: #faf9f9;
  border: 1px solid var(--border);
  border-radius: 7px;
  padding: 12px 14px;
}

.meta-label {
  display: block;
  font-size: 10.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--muted);
  margin-bottom: 4px;
}

.meta-value {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
}

.invoice-section { margin-top: 20px; padding-top: 20px; border-top: 1px solid var(--border); }
.invoice-section h3 { margin-bottom: 10px; }

.detail-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 24px;
}

/* ── Preview ────────────────────────────────────────────────────────────────── */
.preview-frame {
  width: 100%;
  height: 520px;
  margin-top: 14px;
  border: 1px solid var(--border);
  border-radius: 6px;
  display: block;
}

.preview-img {
  max-width: 100%;
  max-height: 480px;
  margin-top: 14px;
  border-radius: 6px;
  border: 1px solid var(--border);
  display: block;
}

/* ── Viewer page ────────────────────────────────────────────────────────────── */
.viewer-layout {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  background: var(--bg);
}

.viewer-header {
  background: var(--accent);
  padding: 28px 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  flex-shrink: 0;
  box-shadow: 0 4px 20px rgba(0,0,0,0.18);
}

.viewer-header-center {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 8px;
}

.header-logo {
  width: 84px;
  height: 84px;
  object-fit: contain;
  flex-shrink: 0;
  border-radius: 8px;
  background: rgba(255,255,255,0.14);
  padding: 6px;
}

.header-text { flex: 1; }

.header-title {
  font-size: 26px;
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.3px;
  line-height: 1.15;
}

.header-sub {
  font-size: 11.5px;
  color: rgba(255,255,255,0.70);
  letter-spacing: 0.9px;
  text-transform: uppercase;
}

.btn-logout-viewer {
  position: absolute;
  right: 28px;
  top: 50%;
  transform: translateY(-50%);
  padding: 8px 16px;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.30);
  border-radius: 6px;
  color: rgba(255,255,255,0.92);
  font-size: 13px;
  font-family: inherit;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.13s;
  white-space: nowrap;
}
.btn-logout-viewer:hover { background: rgba(255,255,255,0.22); }

.viewer-main {
  flex: 1;
  padding: 28px 36px;
  max-width: 1100px;
  width: 100%;
  margin: 0 auto;
}

/* ── Missing invoice per-lot upload ─────────────────────────────────────────── */
.missing-attach-cell {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.missing-upload-row {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.missing-upload-name {
  font-size: 12px;
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  min-width: 0;
}

/* ── Misc helpers ────────────────────────────────────────────────────────────── */
.row { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.mt-1 { margin-top: 6px; }
.mt-2 { margin-top: 14px; }
.mt-3 { margin-top: 22px; }
.mb-1 { margin-bottom: 6px; }
.mb-2 { margin-bottom: 14px; }
.p-4 { padding: 16px; }
.text-muted { color: var(--muted); }
.mono { font-family: 'SFMono-Regular', Consolas, monospace; font-size: 12px; }

.empty {
  text-align: center;
  padding: 36px;
  color: var(--muted);
  font-size: 13px;
}