:root {
  --bg: #f4f5f8;
  --bg-grad-a: #f9f1ff;
  --bg-grad-b: #ffecee;
  --card: #ffffff;
  --ink: #171422;
  --muted: #625f6f;
  --line: #e2dee9;
  --line-soft: #ece9f1;
  --primary: #7e22ce;
  --primary-dark: #6b1ac0;
  --accent: #e11d48;
  --accent-dark: #be123c;
  --ok-bg: #efe8ff;
  --ok-ink: #4c1d95;
  --danger-bg: #ffe5ec;
  --danger-ink: #9f1239;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  background:
    radial-gradient(circle at 12% 8%, var(--bg-grad-a) 0%, transparent 38%),
    radial-gradient(circle at 88% 12%, var(--bg-grad-b) 0%, transparent 42%),
    var(--bg);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 12;
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(8px);
}

.header-inner {
  max-width: 1320px;
  margin: 0 auto;
  padding: 14px 20px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 0;
}

.header-title {
  justify-self: center;
  text-decoration: none;
  color: var(--ink);
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-weight: 700;
  font-size: 1.03rem;
  letter-spacing: 0.01em;
}

.header-title:hover {
  color: var(--primary-dark);
}

.header-spacer {
  min-height: 1px;
}

.is-hidden {
  display: none !important;
}

.container {
  max-width: 1320px;
  margin: 28px auto 46px;
  padding: 0 20px;
  display: grid;
  gap: 18px;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 20px;
  box-shadow: 0 10px 28px rgba(45, 23, 69, 0.06);
}

.hero-card h1 {
  margin: 0;
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  letter-spacing: -0.01em;
}

.subtext {
  color: var(--muted);
  margin: 8px 0 16px;
}

h2,
h3 {
  margin: 0 0 10px;
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
}

.search-form {
  display: grid;
  gap: 10px;
}

label,
.brand-grid-header {
  font-size: 0.83rem;
  color: var(--muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.brand-grid-header {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
  margin-top: 6px;
}

.brand-rows {
  display: grid;
  gap: 8px;
}

.brand-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
}

input,
select,
button {
  border-radius: 9px;
  font-size: 0.95rem;
  font-family: inherit;
}

input,
select {
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  padding: 10px 12px;
}

input:focus,
select:focus {
  outline: none;
  border-color: #cfa3ff;
  box-shadow: 0 0 0 3px rgba(157, 78, 221, 0.18);
}

button {
  border: 1px solid transparent;
  background: linear-gradient(120deg, var(--primary) 0%, var(--accent) 100%);
  color: #fff;
  padding: 10px 14px;
  font-weight: 600;
  cursor: pointer;
}

button:hover {
  background: linear-gradient(120deg, var(--primary-dark) 0%, var(--accent-dark) 100%);
}

.ghost-btn {
  background: #fff;
  color: var(--ink);
  border-color: var(--line);
}

.ghost-btn:hover {
  background: #f7f4fb;
}

.actions-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 4px;
}

#add-brand-btn {
  margin-right: auto;
}

.info,
.error {
  margin-top: 10px;
  border-radius: 10px;
  padding: 10px 12px;
  border: 1px solid;
}

.info {
  background: var(--ok-bg);
  color: var(--ok-ink);
  border-color: #d9c2ff;
}

.error {
  background: var(--danger-bg);
  color: var(--danger-ink);
  border-color: #f8b4c4;
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line-soft);
  border-radius: 11px;
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 760px;
}

th,
td {
  border: 1px solid var(--line-soft);
  padding: 10px 11px;
  text-align: left;
  vertical-align: top;
  font-size: 0.93rem;
}

th {
  background: #faf9fc;
  color: #473e5a;
  font-weight: 600;
}

.tiny-muted {
  margin-top: 6px;
  color: #7f778f;
  font-size: 0.8rem;
}

.chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.chip {
  border: 1px solid #e5d5fa;
  background: #f8f2ff;
  color: #5b21b6;
  border-radius: 999px;
  padding: 4px 9px;
  font-size: 0.78rem;
}

.analysis-shell {
  display: none;
}

.analysis-shell.is-visible {
  display: block;
}

.analysis-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.panel {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 14px;
  background: #fff;
}

.empty-preview {
  min-height: 280px;
  display: grid;
  place-items: center;
  border: 1px dashed #cab6e7;
  border-radius: 12px;
  color: #6d6680;
  background: #fbf8ff;
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
}

.table-block-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 10px;
}

.detail-header {
  margin-top: 14px;
}

.download-btn {
  text-decoration: none;
  color: #fff;
  background: linear-gradient(120deg, var(--primary) 0%, var(--accent) 100%);
  border-radius: 8px;
  padding: 8px 10px;
  font-size: 0.85rem;
  font-weight: 600;
}

.download-btn:hover {
  background: linear-gradient(120deg, var(--primary-dark) 0%, var(--accent-dark) 100%);
}

.error-list {
  display: grid;
  gap: 8px;
  margin-bottom: 10px;
}

.error-item {
  background: #fff1f5;
  border: 1px solid #fbc2d0;
  color: #9f1239;
  border-radius: 8px;
  padding: 8px 10px;
}

.loading-overlay {
  position: fixed;
  inset: 0;
  background: rgba(244, 242, 249, 0.75);
  backdrop-filter: blur(2px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.loading-overlay.is-visible {
  display: flex;
}

.loading-card {
  min-width: 220px;
  text-align: center;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px 20px;
  box-shadow: 0 16px 36px rgba(35, 18, 52, 0.12);
}

.spinner {
  width: 26px;
  height: 26px;
  margin: 0 auto 10px;
  border-radius: 50%;
  border: 3px solid #e9defa;
  border-top-color: var(--primary);
  animation: spin 0.85s linear infinite;
}

#loading-text {
  margin: 0;
  color: #4e4561;
  font-size: 0.92rem;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

@media (max-width: 1000px) {
  .analysis-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .container {
    padding: 0 12px;
  }

  .card {
    padding: 14px;
  }

  .brand-grid-header {
    display: none;
  }

  .brand-row {
    grid-template-columns: 1fr;
  }

  .actions-row {
    justify-content: stretch;
  }

  .actions-row button,
  .actions-row .download-btn {
    flex: 1 1 auto;
    text-align: center;
  }

  #add-brand-btn {
    margin-right: 0;
  }
}