/* EWS shared operational interface */
:root {
  --primary: #4f46e5;
  --primary-hover: #4338ca;
  --primary-light: #f1f0ff;
  --success: #0f8a5f;
  --warning: #b66a08;
  --danger: #c43232;
  --info: #2563b9;
  --gray-50: #f7f8fa;
  --gray-100: #f0f2f5;
  --gray-200: #e3e7ed;
  --gray-300: #cfd5de;
  --gray-400: #98a2b3;
  --gray-500: #667085;
  --gray-600: #475467;
  --gray-700: #344054;
  --gray-800: #1f2937;
  --gray-900: #18212f;
  --gray-950: #101828;
  --surface: #ffffff;
  --radius: 7px;
  --radius-lg: 8px;
  --shadow: 0 1px 2px rgba(16, 24, 40, .05);
  --shadow-sm: 0 1px 3px rgba(16, 24, 40, .07);
  --shadow-lg: 0 18px 48px rgba(16, 24, 40, .16);
  --transition: .18s ease;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { color-scheme: light; background: #f5f7fa; }
body {
  min-height: 100dvh;
  background: #f5f7fa;
  color: var(--gray-800);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 14px;
  line-height: 1.6;
  letter-spacing: 0;
}
button, input, textarea, select { font: inherit; }
button { letter-spacing: 0; }
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: none; }
:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }
.app-container { width: min(100%, 1380px); margin: 0 auto; padding: 0 24px 88px; }

/* Navigation */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid rgba(208, 213, 221, .86);
  background: rgba(255, 255, 255, .96);
  box-shadow: 0 1px 0 rgba(16, 24, 40, .02);
  backdrop-filter: blur(14px);
}
.navbar-inner { width: min(100%, 1380px); min-height: 62px; margin: 0 auto; padding: 0 24px; display: flex; align-items: center; gap: 20px; }
.navbar-brand { display: inline-flex; align-items: center; gap: 10px; flex: 0 0 auto; color: var(--gray-900); }
.navbar-brand:hover { color: var(--gray-900); }
.brand-mark { display: grid; place-items: center; width: 30px; height: 30px; border-radius: 7px; background: var(--gray-900); color: #fff; font-size: 12px; font-weight: 800; }
.brand-copy { display: flex; flex-direction: column; line-height: 1.15; }
.brand-copy strong { font-size: 14px; font-weight: 750; }
.brand-copy small { color: var(--gray-500); font-size: 10px; font-weight: 600; }
.navbar-nav { display: flex; align-items: center; gap: 3px; min-width: 0; flex: 1; }
.nav-link { display: inline-flex; align-items: center; justify-content: center; min-height: 36px; padding: 7px 12px; border-radius: 7px; color: var(--gray-600); font-size: 13px; font-weight: 600; white-space: nowrap; transition: color var(--transition), background var(--transition); }
.nav-link:hover { background: var(--gray-50); color: var(--gray-900); }
.nav-link.active { background: var(--primary-light); color: var(--primary); }
.navbar-right { display: flex; align-items: center; gap: 8px; flex: 0 0 auto; }
.nav-account { display: flex; align-items: center; gap: 10px; padding-left: 12px; border-left: 1px solid var(--gray-200); }
.nav-credits { display: flex; align-items: center; gap: 6px; color: var(--gray-500); font-size: 12px; white-space: nowrap; }
.nav-credits b { color: var(--gray-900); font-variant-numeric: tabular-nums; }
.nav-refresh, .nav-logout { min-height: 30px; padding: 5px 8px; border: 0; border-radius: 6px; background: transparent; cursor: pointer; font-size: 12px; font-weight: 650; }
.nav-refresh { color: var(--primary); }
.nav-logout { color: var(--danger); }
.nav-refresh:hover, .nav-logout:hover { background: var(--gray-50); }
.nav-refresh.is-loading { pointer-events: none; opacity: .55; }

/* Page shell */
.page-header { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; margin: 30px 0 22px; }
.page-heading { min-width: 0; }
.page-kicker { margin-bottom: 3px; color: var(--primary); font-size: 11px; font-weight: 750; text-transform: uppercase; }
.page-title { color: var(--gray-900); font-size: 26px; font-weight: 750; line-height: 1.28; letter-spacing: 0; }
.page-subtitle { max-width: 68ch; margin-top: 6px; color: var(--gray-500); font-size: 13px; }
.action-bar { display: flex; align-items: center; justify-content: flex-end; gap: 8px; flex-wrap: wrap; }
.content-stack { display: grid; gap: 18px; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: 38px;
  padding: 8px 15px;
  border: 1px solid transparent;
  border-radius: 7px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 650;
  line-height: 1.35;
  white-space: nowrap;
  transition: background var(--transition), border-color var(--transition), color var(--transition), transform var(--transition);
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0) scale(.98); }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-hover); }
.btn-success { background: var(--success); color: #fff; }
.btn-success:hover { background: #0b7550; }
.btn-danger { background: #fff; border-color: #efc5c5; color: var(--danger); }
.btn-danger:hover { background: #fff5f5; border-color: #e9a8a8; }
.btn-outline { background: #fff; border-color: var(--gray-300); color: var(--gray-700); }
.btn-outline:hover { background: var(--gray-50); border-color: var(--gray-400); color: var(--gray-900); }
.btn-sm { min-height: 32px; padding: 6px 10px; font-size: 12px; }
.btn:disabled { cursor: not-allowed; opacity: .48; transform: none; }
.btn.is-loading { position: relative; color: transparent !important; pointer-events: none; }
.btn.is-loading::after { content: ''; position: absolute; width: 16px; height: 16px; border: 2px solid rgba(255, 255, 255, .55); border-top-color: #fff; border-radius: 50%; animation: button-spin .7s linear infinite; }
.btn-outline.is-loading::after { border-color: var(--gray-300); border-top-color: var(--gray-600); }
@keyframes button-spin { to { transform: rotate(360deg); } }

/* Forms */
.form-group { margin-bottom: 18px; }
.form-group:last-child { margin-bottom: 0; }
.form-label { display: block; margin-bottom: 7px; color: var(--gray-700); font-size: 13px; font-weight: 650; }
.form-label .required, .required { color: var(--danger); }
.form-label .optional, .optional { color: var(--gray-400); font-size: 11px; font-weight: 500; }
.form-input, .form-select, .form-textarea {
  width: 100%;
  min-height: 42px;
  padding: 9px 12px;
  border: 1px solid var(--gray-300);
  border-radius: 7px;
  background: #fff;
  color: var(--gray-800);
  font-size: 13px;
  transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
}
.form-input::placeholder, .form-textarea::placeholder { color: var(--gray-400); }
.form-input:hover, .form-select:hover, .form-textarea:hover { border-color: #b8c0cc; }
.form-input:focus, .form-select:focus, .form-textarea:focus { outline: 0; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(79, 70, 229, .11); }
.form-textarea { min-height: 88px; resize: vertical; }
.form-hint { margin-top: 5px; color: var(--gray-500); font-size: 11px; line-height: 1.55; }
.form-row { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.form-grid-3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
input[type="checkbox"], input[type="radio"] { accent-color: var(--primary); }

/* Surfaces and sections */
.card, .surface { border: 1px solid var(--gray-200); border-radius: 8px; background: var(--surface); box-shadow: var(--shadow); overflow: hidden; }
.card + .card { margin-top: 18px; }
.card-header { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 54px; padding: 15px 20px; border-bottom: 1px solid var(--gray-200); color: var(--gray-900); font-size: 14px; font-weight: 700; }
.card-body { padding: 20px; }
.section-label { margin: 4px 0 14px; color: var(--gray-500); font-size: 11px; font-weight: 750; text-transform: uppercase; }
.surface-section { padding: 24px; border-bottom: 1px solid var(--gray-200); }
.surface-section:last-child { border-bottom: 0; }
.surface-heading { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; margin-bottom: 18px; }
.surface-heading h2 { color: var(--gray-900); font-size: 16px; line-height: 1.4; }
.surface-heading p { margin-top: 4px; color: var(--gray-500); font-size: 12px; }
.inline-note { padding: 11px 13px; border-left: 3px solid var(--primary); background: #f7f7ff; color: var(--gray-600); font-size: 12px; line-height: 1.6; }

/* Tables */
.table-container { width: 100%; overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 12px 14px; border-bottom: 1px solid var(--gray-200); text-align: left; vertical-align: middle; font-size: 13px; }
th { background: var(--gray-50); color: var(--gray-500); font-size: 11px; font-weight: 750; white-space: nowrap; }
tbody tr:last-child td { border-bottom: 0; }
tbody tr { transition: background var(--transition); }
tbody tr:hover td { background: #fafbfc; }
code { font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace; }

/* Status */
.badge, .platform-tag { display: inline-flex; align-items: center; width: fit-content; min-height: 23px; padding: 3px 8px; border-radius: 999px; font-size: 11px; font-weight: 700; white-space: nowrap; }
.badge::before { width: 6px; height: 6px; border-radius: 50%; background: currentColor; content: ""; opacity: .75; }
.badge-success { background: #e9f8f1; color: #08724d; }
.badge-warning { background: #fff6e6; color: #9a5805; }
.badge-danger { background: #fff0f0; color: #b42323; }
.badge-info { background: #edf5ff; color: #205fa8; }
.badge-default { background: var(--gray-100); color: var(--gray-600); }

/* Tabs */
.tab-bar { display: flex; gap: 4px; margin-bottom: 20px; padding: 4px; border: 1px solid var(--gray-200); border-radius: 8px; background: #fff; overflow-x: auto; }
.tab-btn { flex: 0 0 auto; min-height: 36px; padding: 7px 14px; border: 0; border-radius: 6px; background: transparent; color: var(--gray-500); cursor: pointer; font-size: 13px; font-weight: 650; white-space: nowrap; }
.tab-btn:hover { background: var(--gray-50); color: var(--gray-800); }
.tab-btn.active { background: var(--primary-light); color: var(--primary); }
.tab-panel { display: none; animation: panel-in .16s ease; }
.tab-panel.active { display: block; }
@keyframes panel-in { from { opacity: 0; transform: translateY(3px); } to { opacity: 1; transform: translateY(0); } }

/* Modals */
.modal-overlay { position: fixed; inset: 0; z-index: 200; display: flex; align-items: center; justify-content: center; padding: 20px; visibility: hidden; background: rgba(24, 33, 47, .54); opacity: 0; transition: opacity var(--transition), visibility var(--transition); }
.modal-overlay.show { visibility: visible; opacity: 1; }
.modal { width: min(100%, 560px); max-height: min(88dvh, 920px); overflow-y: auto; border: 1px solid rgba(255, 255, 255, .3); border-radius: 8px; background: #fff; box-shadow: var(--shadow-lg); }
.modal-header { position: sticky; top: 0; z-index: 2; display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 58px; padding: 16px 20px; border-bottom: 1px solid var(--gray-200); background: rgba(255, 255, 255, .98); }
.modal-title { color: var(--gray-900); font-size: 16px; font-weight: 750; }
.modal-close { display: grid; place-items: center; width: 32px; height: 32px; border: 0; border-radius: 6px; background: transparent; color: var(--gray-500); cursor: pointer; font-size: 22px; line-height: 1; }
.modal-close:hover { background: var(--gray-100); color: var(--gray-900); }
.modal-body { padding: 20px; }
.modal-footer { position: sticky; bottom: 0; z-index: 2; display: flex; align-items: center; justify-content: flex-end; gap: 8px; padding: 14px 20px; border-top: 1px solid var(--gray-200); background: rgba(255, 255, 255, .98); }
.detail-section { margin-bottom: 18px; }
.detail-section:last-child { margin-bottom: 0; }
.detail-label { margin-bottom: 4px; color: var(--gray-500); font-size: 11px; font-weight: 650; }
.detail-value { color: var(--gray-800); font-size: 13px; }

/* Uploads and variants */
.upload-zone { display: flex; align-items: center; justify-content: center; min-height: 110px; padding: 20px; border: 1px dashed #b8c0cc; border-radius: 8px; background: var(--gray-50); text-align: center; cursor: pointer; transition: border-color var(--transition), background var(--transition); }
.upload-zone:hover { border-color: var(--primary); background: #f7f7ff; }
.upload-zone.has-image { padding: 10px; border-style: solid; border-color: var(--gray-300); background: #fff; }
.upload-zone img { max-width: 100%; max-height: 200px; border-radius: 6px; }
.upload-text { color: var(--gray-500); font-size: 12px; line-height: 1.55; }
.variant-item { margin-bottom: 12px; padding: 18px; border: 1px solid var(--gray-200); border-radius: 8px; background: #fff; }
.variant-header { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 15px; }
.variant-number { color: var(--gray-900); font-size: 13px; font-weight: 700; }
.variant-remove { min-height: 30px; padding: 4px 8px; border: 0; border-radius: 6px; background: transparent; color: var(--danger); cursor: pointer; font-size: 12px; }
.variant-remove:hover { background: #fff1f1; }

/* Feedback */
.toast { position: fixed; top: 76px; right: 20px; z-index: 1000; max-width: min(420px, calc(100vw - 40px)); padding: 12px 15px; border: 1px solid rgba(255, 255, 255, .22); border-radius: 8px; color: #fff; box-shadow: var(--shadow-lg); font-size: 13px; font-weight: 650; opacity: 0; transform: translateY(-8px); transition: opacity .2s ease, transform .2s ease; }
.toast.show { opacity: 1; transform: translateY(0); }
.toast-success { background: #08724d; }
.toast-error { background: #b42323; }
.toast-warning { background: #9a5805; }
.toast-info { background: #205fa8; }
.empty-state { display: grid; place-items: center; min-height: 260px; padding: 42px 20px; color: var(--gray-500); text-align: center; }
.empty-state .empty-text { color: var(--gray-700); font-size: 14px; font-weight: 650; }
.loading { display: flex; align-items: center; justify-content: center; min-height: 180px; padding: 32px; color: var(--gray-500); }
.spinner { width: 20px; height: 20px; margin-right: 9px; border: 2px solid var(--gray-200); border-top-color: var(--primary); border-radius: 50%; animation: spin .72s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.skeleton { position: relative; overflow: hidden; border-radius: 5px; background: var(--gray-100); }
.skeleton::after { position: absolute; inset: 0; background: linear-gradient(90deg, transparent, rgba(255,255,255,.76), transparent); content: ""; transform: translateX(-100%); animation: skeleton-wave 1.2s ease-in-out infinite; }
.skeleton-line { height: 12px; }
.skeleton-row { display: grid; grid-template-columns: 90px 100px 1fr 90px 130px 260px; gap: 16px; padding: 15px 14px; border-bottom: 1px solid var(--gray-200); }
@keyframes skeleton-wave { to { transform: translateX(100%); } }

/* Login */
.login-card { width: min(410px, calc(100vw - 32px)); padding: 32px; border: 1px solid var(--gray-200); border-radius: 8px; background: #fff; box-shadow: var(--shadow-lg); }
.login-title { margin-bottom: 5px; color: var(--gray-900); font-size: 24px; font-weight: 800; text-align: center; }
.login-subtitle { margin-bottom: 26px; color: var(--gray-500); font-size: 13px; text-align: center; }

/* Responsive */
@media (max-width: 900px) {
  .navbar-inner { flex-wrap: wrap; gap: 8px 12px; padding-block: 8px; }
  .navbar-nav { order: 3; width: 100%; flex-basis: 100%; overflow-x: auto; scrollbar-width: none; }
  .navbar-nav::-webkit-scrollbar { display: none; }
  .brand-copy small { display: none; }
  .app-container { padding-inline: 16px; }
  .form-grid-3 { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .navbar-inner { padding-inline: 14px; }
  .brand-copy { display: none; }
  .navbar-right { margin-left: auto; }
  .nav-account { padding-left: 8px; }
  .nav-credits { gap: 4px; }
  .nav-credits > span { display: none; }
  .page-header { align-items: flex-start; flex-direction: column; margin-top: 22px; }
  .page-title { font-size: 23px; }
  .action-bar { width: 100%; justify-content: flex-start; }
  .form-row { grid-template-columns: 1fr; }
  .card-body, .surface-section { padding: 17px; }
  .modal-overlay { align-items: flex-end; padding: 0; }
  .modal { width: 100%; max-height: 92dvh; border-radius: 8px 8px 0 0; }
  .modal-footer { flex-wrap: wrap; }
  .modal-footer .btn { flex: 1 1 auto; }
  .skeleton-row { grid-template-columns: 70px 1fr 90px; }
  .skeleton-row > :nth-child(2), .skeleton-row > :nth-child(5), .skeleton-row > :nth-child(6) { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; transition-duration: .01ms !important; animation-iteration-count: 1 !important; }
}