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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: #fff;
  color: #202124;
}

.hidden { display: none !important; }

/* spinner */
.spinner {
  display: inline-block;
  width: 16px; height: 16px;
  border: 2px solid #ddd;
  border-top-color: #1a73e8;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  vertical-align: middle;
  margin-right: 6px;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* search box */
.search-box {
  display: flex;
  align-items: center;
  border: 1px solid #dfe1e5;
  border-radius: 24px;
  background: #fff;
  transition: box-shadow 0.15s;
}
.search-box:focus-within {
  box-shadow: 0 2px 12px rgba(0,0,0,0.12);
  border-color: transparent;
}
.search-box input {
  flex: 1;
  border: none;
  outline: none;
  background: transparent;
  color: #202124;
}
.search-icon-btn {
  background: none;
  border: none;
  cursor: pointer;
  color: #9aa0a6;
  display: flex;
  align-items: center;
  padding: 0 14px 0 4px;
  transition: color 0.15s;
}
.search-icon-btn:hover { color: #1a73e8; background: none; }

/* pills */
.mode-pills { display: flex; gap: 8px; flex-wrap: wrap; }
.pill {
  background: none;
  border: 1px solid #dadce0;
  border-radius: 16px;
  color: #5f6368;
  font-size: 0.82rem;
  padding: 5px 14px;
  cursor: pointer;
  transition: background 0.12s, color 0.12s;
}
.pill:hover { background: #f1f3f4; color: #202124; }
.pill.active { background: #e8f0fe; color: #1a73e8; border-color: #c5d8f6; font-weight: 600; }


.state { min-height: 100vh; }

/* home */
.state#state-home {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  position: relative;
}
.home-center {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 22px;
  width: 100%;
  max-width: 580px;
  margin-top: -80px;
}
.logo {
  font-size: 2.8rem;
  font-weight: 700;
  letter-spacing: -1px;
  color: #202124;
}
.tagline { font-size: 0.9rem; color: #5f6368; margin-top: -14px; }

.home-search-box { width: 100%; padding: 12px 16px; }
.home-search-box input { font-size: 1.05rem; padding: 0 8px; }
.home-center .mode-pills { justify-content: center; }

/* top bar */
.top-bar {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 10px 24px 0;
  border-bottom: 1px solid #ebebeb;
  flex-wrap: wrap;
}
.logo-small {
  font-size: 1.2rem;
  font-weight: 700;
  color: #202124;
  text-decoration: none;
  white-space: nowrap;
}
.logo-small:hover { color: #1a73e8; }
.top-search-box { flex: 1; min-width: 180px; max-width: 560px; padding: 8px 12px; }
.top-search-box input { font-size: 0.95rem; padding: 0 6px; }
.top-bar .mode-pills { width: 100%; padding: 8px 0 10px; }

.back-btn {
  background: none;
  border: 1px solid #dadce0;
  color: #1a73e8;
  font-size: 0.875rem;
  padding: 6px 14px;
  border-radius: 16px;
  cursor: pointer;
  white-space: nowrap;
}
.back-btn:hover { background: #f1f3f4; }

/* results */
.results-main { max-width: 720px; padding: 18px 24px 60px; }

.status-line {
  font-size: 0.82rem;
  color: #70757a;
  min-height: 20px;
  margin-bottom: 14px;
}
.status-line.error { color: #d93025; font-size: 0.9rem; }

.result-item {
  padding: 12px 0;
  border-bottom: 1px solid #f1f3f4;
  cursor: pointer;
}
.result-item:last-child { border-bottom: none; }
.result-item:hover .result-name { text-decoration: underline; }

.result-name { font-size: 1rem; font-weight: 600; color: #1a0dab; }
.result-brand { font-size: 0.8rem; color: #006621; margin-left: 8px; }
.result-meta { font-size: 0.83rem; color: #4d5156; margin-top: 4px; display: flex; gap: 10px; flex-wrap: wrap; }

.badge {
  display: inline-flex;
  align-items: center;
  font-size: 0.73rem;
  font-weight: 600;
  padding: 2px 7px;
  border-radius: 10px;
}
.badge-golden { background: #fef3c7; color: #92400e; }
.badge-subs   { background: #e8f0fe; color: #1a73e8; }

.more-row { padding: 18px 0; }
.more-row button {
  background: none;
  border: 1px solid #dadce0;
  color: #1a73e8;
  font-size: 0.875rem;
  padding: 8px 22px;
  border-radius: 20px;
  cursor: pointer;
}
.more-row button:hover { background: #f1f3f4; }

/* product page */
.product-main { max-width: 860px; padding: 24px 24px 80px; }

/* product header */
.product-header {
  display: flex;
  gap: 24px;
  margin-bottom: 28px;
  align-items: flex-start;
  flex-wrap: wrap;
}
.product-img-wrap {
  flex-shrink: 0;
  width: 140px; height: 140px;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid #ebebeb;
  background: #f8f9fa;
  display: flex;
  align-items: center;
  justify-content: center;
}
.product-img-wrap img { width: 100%; height: 100%; object-fit: contain; }
.img-placeholder {
  width: 100%; height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  font-weight: 700;
  color: #bbb;
  background: #f1f3f4;
  user-select: none;
}

.product-info { flex: 1; min-width: 200px; }
.product-info h1 { font-size: 1.4rem; font-weight: 700; line-height: 1.3; margin-bottom: 4px; }
.product-info .brand-name { font-size: 0.95rem; color: #006621; margin-bottom: 10px; }
.product-info .meta-badges { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 12px; }
.product-info .description { font-size: 0.875rem; color: #5f6368; line-height: 1.5; max-width: 480px; }
.product-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.82rem;
  color: #1a73e8;
  text-decoration: none;
  margin-top: 8px;
}
.product-link:hover { text-decoration: underline; }

/* section titles */
.section-title {
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: #5f6368;
  margin: 24px 0 10px;
}

/* ingredient chips */
.ingredient-chips { display: flex; flex-wrap: wrap; gap: 5px; }
.chip {
  background: #f1f3f4;
  border-radius: 12px;
  padding: 4px 10px;
  font-size: 0.78rem;
  color: #3c4043;
  cursor: default;
  position: relative;
}
.chip:hover { background: #e8eaed; }
.chip-pos { color: #9aa0a6; font-size: 0.7rem; margin-right: 3px; }

/* substitutes table */
.subs-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
  margin-top: 4px;
}
.subs-table th {
  text-align: left;
  font-size: 0.75rem;
  font-weight: 600;
  color: #5f6368;
  padding: 6px 10px;
  border-bottom: 2px solid #ebebeb;
  white-space: nowrap;
}
.subs-table td {
  padding: 10px 10px;
  border-bottom: 1px solid #f1f3f4;
  vertical-align: middle;
}
.subs-table tr:last-child td { border-bottom: none; }
.subs-table tr:hover td { background: #f8f9fa; cursor: pointer; }

.sub-thumb {
  width: 44px; height: 44px;
  border-radius: 4px;
  overflow: hidden;
  border: 1px solid #ebebeb;
  background: #f8f9fa;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.sub-thumb img { width: 100%; height: 100%; object-fit: contain; }
.sub-thumb .img-placeholder { font-size: 1rem; }

.sub-product-name { font-weight: 600; color: #1a0dab; }
.sub-product-name:hover { text-decoration: underline; }
.sub-brand { font-size: 0.78rem; color: #006621; margin-top: 2px; }

.match-bars { display: flex; flex-direction: column; gap: 5px; }
.match-row { display: flex; align-items: center; gap: 7px; }
.match-label {
  font-size: 0.68rem;
  font-weight: 600;
  color: #9aa0a6;
  text-transform: uppercase;
  letter-spacing: 0.3px;
  width: 24px;
  flex-shrink: 0;
}
.match-bar {
  width: 72px; height: 5px;
  background: #e8eaed;
  border-radius: 3px;
  overflow: hidden;
  flex-shrink: 0;
}
.match-bar-fill { height: 100%; background: #1a73e8; border-radius: 3px; }
.match-bar-fill.golden { background: #f59e0b; }
.match-text { font-size: 0.78rem; color: #3c4043; white-space: nowrap; }
.match-pct { color: #9aa0a6; font-size: 0.72rem; }

/* auth */
.home-auth-bar {
  position: absolute;
  top: 16px; right: 24px;
  font-size: 0.82rem;
}
.top-auth-link {
  margin-left: auto;
  font-size: 0.82rem;
  white-space: nowrap;
}
.auth-login-link { color: #1a73e8; text-decoration: none; }
.auth-login-link:hover { text-decoration: underline; }
.auth-status { color: #5f6368; }
.auth-logout { color: #1a73e8; text-decoration: none; cursor: pointer; }
.auth-logout:hover { text-decoration: underline; }

.auth-main {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: calc(100vh - 57px);
  padding: 24px;
}
.auth-card {
  width: 100%;
  max-width: 360px;
  border: 1px solid #dadce0;
  border-radius: 8px;
  padding: 32px 28px;
}
.auth-tabs {
  display: flex;
  gap: 0;
  margin-bottom: 24px;
  border-bottom: 2px solid #ebebeb;
}
.auth-tab {
  flex: 1;
  background: none;
  border: none;
  padding: 10px 0;
  font-size: 0.92rem;
  color: #5f6368;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
}
.auth-tab.active { color: #1a73e8; border-bottom-color: #1a73e8; font-weight: 600; }
.auth-card input {
  width: 100%;
  border: 1px solid #dadce0;
  border-radius: 4px;
  padding: 10px 12px;
  font-size: 0.9rem;
  margin-bottom: 12px;
  outline: none;
  color: #202124;
}
.auth-card input:focus { border-color: #1a73e8; box-shadow: 0 0 0 2px #e8f0fe; }
.auth-error {
  font-size: 0.83rem;
  color: #d93025;
  margin-bottom: 10px;
}
.auth-card button[type=submit] {
  width: 100%;
  background: #1a73e8;
  color: #fff;
  border: none;
  border-radius: 4px;
  padding: 10px;
  font-size: 0.95rem;
  cursor: pointer;
  margin-top: 4px;
}
.auth-card button[type=submit]:hover { background: #1765cc; }
.auth-card button[type=submit]:disabled { opacity: 0.6; cursor: default; }

/* account */
.account-card { max-width: 440px; }
.account-title { font-size: 1.15rem; font-weight: 700; margin-bottom: 24px; color: #202124; }
.account-row { margin-bottom: 18px; }
.account-label { display: block; font-size: 0.75rem; font-weight: 600; color: #5f6368; text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 5px; }
.account-value { font-size: 0.95rem; color: #202124; }
.api-key-box { display: flex; align-items: center; gap: 10px; background: #f1f3f4; border-radius: 4px; padding: 8px 12px; }
.api-key-box code { font-family: monospace; font-size: 0.82rem; color: #3c4043; word-break: break-all; flex: 1; }
.copy-btn { background: none; border: 1px solid #dadce0; border-radius: 4px; padding: 4px 10px; font-size: 0.78rem; color: #1a73e8; cursor: pointer; white-space: nowrap; }
.copy-btn:hover { background: #e8f0fe; }
.account-divider { border: none; border-top: 1px solid #ebebeb; margin: 24px 0; }
.logout-btn { background: none; border: 1px solid #dadce0; border-radius: 4px; padding: 8px 18px; font-size: 0.875rem; color: #3c4043; cursor: pointer; margin-right: 10px; }
.logout-btn:hover { background: #f1f3f4; }
.delete-btn { background: none; border: 1px solid #d93025; border-radius: 4px; padding: 8px 18px; font-size: 0.875rem; color: #d93025; cursor: pointer; }
.delete-btn:hover { background: #fce8e6; }