/* SJ Auto Part — Theme & Base
 * Light theme — ออกแบบเพื่อพนักงานสูงวัย:
 *  - High contrast (text เข้มบน bg ขาว)
 *  - เส้นขอบชัดเจน (ไม่พึ่ง shadow อย่างเดียว)
 *  - hover/active states ชัดเจน
 *  - ฟอนต์ size ใหญ่ขึ้นเล็กน้อย (15px แทน 14px)
 */

:root {
  /* Backgrounds */
  --bg: #f5f7fa;
  --panel: #ffffff;
  --panel-2: #eef1f5;
  --border: #d1d5db;

  /* Text */
  --text: #111827;
  --muted: #6b7280;

  /* Brand / accent */
  --accent: #2563eb;
  --accent-dim: #1d4ed8;
  --accent-bg: #eff6ff;

  /* Status */
  --error: #dc2626;
  --error-bg: #fef2f2;
  --success: #059669;
  --success-bg: #ecfdf5;
  --warning: #d97706;
  --warning-bg: #fffbeb;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 4px 14px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 20px 50px rgba(15, 23, 42, 0.12);

  /* Modal backdrop */
  --backdrop: rgba(15, 23, 42, 0.45);
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* ===========================================================
 * Top navigation bar (sticky) — ใช้ทุกหน้าใน /app/
 *  - Logo คลิกได้ → home (/app/dashboard.html)
 *  - Nav links: นำเข้าไฟล์ / รายการอะไหล่ / ออเดอร์
 *  - User info + logout
 * =========================================================== */
.topbar {
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  padding: 12px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  position: sticky;
  top: 0;
  z-index: 50;
  box-shadow: 0 1px 0 rgba(15, 23, 42, 0.02);
}
.topbar-left {
  display: flex;
  align-items: center;
  gap: 28px;
  min-width: 0;
}
.topbar-brand {
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
  white-space: nowrap;
  letter-spacing: 0.2px;
  padding: 6px 4px;
  border-radius: 6px;
  transition: opacity 0.15s;
}
.topbar-brand:hover { opacity: 0.7; }
.topbar-brand b { color: var(--accent); }
.topbar-nav {
  display: flex;
  gap: 4px;
}
.topbar-nav a {
  padding: 7px 14px;
  border-radius: 7px;
  font-size: 13px;
  font-weight: 500;
  color: var(--muted);
  text-decoration: none;
  transition: all 0.15s;
  white-space: nowrap;
}
.topbar-nav a:hover {
  background: var(--panel-2);
  color: var(--text);
}
.topbar-nav a.active {
  color: var(--accent);
  background: var(--accent-bg);
  font-weight: 600;
}
.topbar-right {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  flex-shrink: 0;
}
.topbar-user { color: var(--muted); }
.topbar-user b { color: var(--text); }
.topbar-logout {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--muted);
  padding: 6px 14px;
  border-radius: 6px;
  cursor: pointer;
  font-family: inherit;
  font-size: 12px;
  transition: all 0.15s;
}
.topbar-logout:hover { border-color: var(--text); color: var(--text); }

@media (max-width: 720px) {
  .topbar { padding: 10px 14px; gap: 8px; }
  .topbar-left { gap: 14px; }
  .topbar-nav a { padding: 6px 10px; font-size: 12px; }
  .topbar-user { display: none; }
}

/* ===========================================================
 * Full-page loader (ใช้ขณะรอ first data load)
 * - ครอบทั้งจอ ป้องกันเห็นเลข 0 / ตารางว่างก่อนข้อมูลมา
 * - ใส่ <div class="page-loader" id="pageLoader">...</div> ในหน้าที่ต้องการ
 * - เมื่อโหลดเสร็จเรียก: $('pageLoader').classList.add('hidden')
 * =========================================================== */
.page-loader {
  position: fixed;
  inset: 0;
  background: var(--bg);
  z-index: 999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  color: var(--muted);
  font-size: 14px;
  transition: opacity 0.2s ease-out;
}
.page-loader.hidden {
  opacity: 0;
  pointer-events: none;
}
.spinner {
  width: 38px;
  height: 38px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ===========================================================
 * Product detail popup (🔍 button + modal)
 * - ใช้ใน products.html + version.html
 * - แสดง products.details (rich detail หลายบรรทัด) + ปุ่มค้นหา Google fallback
 * =========================================================== */
.info-btn {
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 1px 4px;
  margin-left: 6px;
  font-size: 13px;
  opacity: 0.5;
  transition: opacity 0.15s, transform 0.15s;
  vertical-align: middle;
  line-height: 1;
}
.info-btn:hover { opacity: 1; transform: scale(1.2); }

.detail-modal-backdrop {
  position: fixed;
  inset: 0;
  background: var(--backdrop);
  backdrop-filter: blur(4px);
  z-index: 300;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.detail-modal-backdrop.show { display: flex; }
.detail-modal {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  width: 100%;
  max-width: 580px;
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  max-height: calc(100vh - 40px);
  animation: detailSlideUp 0.18s ease-out;
}
@keyframes detailSlideUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: none; }
}
.detail-modal-head {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}
.detail-modal-title {
  font-family: 'SF Mono', Monaco, 'Cascadia Code', monospace;
  font-size: 15px;
  font-weight: 700;
  color: var(--accent);
  word-break: break-all;
}
.detail-modal-close {
  background: transparent;
  border: none;
  color: var(--muted);
  font-size: 22px;
  cursor: pointer;
  line-height: 1;
  padding: 0 4px;
  flex-shrink: 0;
}
.detail-modal-close:hover { color: var(--text); }
.detail-modal-body {
  padding: 18px 22px;
  overflow-y: auto;
  flex: 1;
}
.detail-modal-content {
  white-space: pre-wrap;
  word-wrap: break-word;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text);
}
.detail-modal-content.empty {
  color: var(--muted);
  font-style: italic;
  text-align: center;
  padding: 18px 0;
}
.detail-modal-foot {
  padding: 12px 20px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.detail-modal-foot .hint {
  font-size: 11px;
  color: var(--muted);
}
.detail-modal-google {
  background: var(--accent);
  border: 1px solid var(--accent);
  color: #fff;
  padding: 9px 16px;
  border-radius: 7px;
  font-family: inherit;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s;
}
.detail-modal-google:hover { background: var(--accent-dim); border-color: var(--accent-dim); }