@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

:root {
  --bg-primary: #0a0a0f;
  --bg-secondary: #12121a;
  --bg-card: rgba(255,255,255,0.04);
  --bg-glass: rgba(255,255,255,0.06);
  --border: rgba(255,255,255,0.08);
  --text-primary: #f0f0f5;
  --text-secondary: #8888a0;
  --text-muted: #55556a;
  --accent: #6c5ce7;
  --accent-glow: rgba(108,92,231,0.3);
  --green: #00d68f;
  --green-glow: rgba(0,214,143,0.25);
  --yellow: #ffc048;
  --yellow-glow: rgba(255,192,72,0.25);
  --red: #ff6b6b;
  --red-glow: rgba(255,107,107,0.25);
  --radius: 16px;
  --radius-sm: 10px;
}

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

body {
  font-family:'Inter',sans-serif;
  background:var(--bg-primary);
  color:var(--text-primary);
  min-height:100vh;
  overflow-x:hidden;
}

body::before {
  content:'';
  position:fixed;
  top:-50%;left:-50%;
  width:200%;height:200%;
  background:radial-gradient(circle at 30% 20%, rgba(108,92,231,0.08) 0%, transparent 50%),
             radial-gradient(circle at 70% 80%, rgba(0,214,143,0.05) 0%, transparent 50%);
  z-index:0;
  pointer-events:none;
}

.app { position:relative; z-index:1; max-width:1400px; margin:0 auto; padding:20px; }

/* HEADER */
.header {
  text-align:center;
  padding:40px 20px 30px;
  margin-bottom:30px;
}
.header h1 {
  font-size:2.8rem;
  font-weight:900;
  background:linear-gradient(135deg,#6c5ce7,#a29bfe,#00d68f);
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
  letter-spacing:-1px;
}
.header p { color:var(--text-secondary); margin-top:8px; font-size:0.95rem; }

/* SUMMARY PANEL */
.summary-panel {
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(200px,1fr));
  gap:16px;
  margin-bottom:30px;
}
.summary-card {
  background:var(--bg-glass);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:24px;
  text-align:center;
  backdrop-filter:blur(10px);
  transition:transform 0.3s, box-shadow 0.3s;
}
.summary-card:hover {
  transform:translateY(-4px);
  box-shadow:0 8px 30px rgba(0,0,0,0.3);
}
.summary-card .value {
  font-size:2.4rem;
  font-weight:800;
  margin-bottom:4px;
}
.summary-card .label {
  font-size:0.8rem;
  color:var(--text-secondary);
  text-transform:uppercase;
  letter-spacing:1.5px;
}
.summary-card.total .value { color:var(--accent); }
.summary-card.avg .value { color:var(--yellow); }
.summary-card.winners .value { color:var(--green); }
.summary-card.losers .value { color:var(--red); }

/* TABS */
.tabs {
  display:flex;
  gap:8px;
  margin-bottom:24px;
  flex-wrap:wrap;
}
.tab-btn {
  padding:10px 24px;
  border:1px solid var(--border);
  border-radius:40px;
  background:var(--bg-glass);
  color:var(--text-secondary);
  cursor:pointer;
  font-family:inherit;
  font-size:0.85rem;
  font-weight:500;
  transition:all 0.3s;
}
.tab-btn:hover { border-color:var(--accent); color:var(--text-primary); }
.tab-btn.active {
  background:var(--accent);
  border-color:var(--accent);
  color:#fff;
  box-shadow:0 4px 20px var(--accent-glow);
}

/* FORM PANEL */
.form-panel {
  background:var(--bg-glass);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:32px;
  backdrop-filter:blur(10px);
  margin-bottom:30px;
}
.form-panel h2 {
  font-size:1.3rem;
  font-weight:700;
  margin-bottom:24px;
  display:flex;
  align-items:center;
  gap:10px;
}
.form-grid {
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(280px,1fr));
  gap:16px;
}
.form-group { display:flex; flex-direction:column; gap:6px; }
.form-group label {
  font-size:0.78rem;
  color:var(--text-secondary);
  text-transform:uppercase;
  letter-spacing:1px;
  font-weight:600;
}
.form-group input,
.form-group textarea,
.form-group select {
  background:rgba(255,255,255,0.05);
  border:1px solid var(--border);
  border-radius:var(--radius-sm);
  padding:12px 16px;
  color:var(--text-primary);
  font-family:inherit;
  font-size:0.9rem;
  transition:border-color 0.3s, box-shadow 0.3s;
  outline:none;
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color:var(--accent);
  box-shadow:0 0 0 3px var(--accent-glow);
}
.form-group textarea { resize:vertical; min-height:80px; }
.form-group select option { background:#1a1a2e; }

/* SCORING */
.scoring-section { margin-top:24px; }
.scoring-section h3 {
  font-size:1rem;
  font-weight:600;
  margin-bottom:16px;
  color:var(--accent);
}
.score-grid {
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(320px,1fr));
  gap:12px;
}
.score-item {
  display:flex;
  align-items:center;
  justify-content:space-between;
  background:rgba(255,255,255,0.03);
  border:1px solid var(--border);
  border-radius:var(--radius-sm);
  padding:14px 18px;
  transition:border-color 0.3s;
}
.score-item:hover { border-color:rgba(255,255,255,0.15); }
.score-item .info { flex:1; }
.score-item .info .name { font-size:0.88rem; font-weight:500; }
.score-item .info .weight { font-size:0.72rem; color:var(--text-muted); margin-top:2px; }
.star-rating { display:flex; gap:4px; }
.star-rating .star {
  width:28px; height:28px;
  cursor:pointer;
  font-size:1.2rem;
  display:flex;
  align-items:center;
  justify-content:center;
  border-radius:6px;
  transition:all 0.2s;
  background:rgba(255,255,255,0.05);
  border:1px solid transparent;
  color:var(--text-muted);
  user-select:none;
}
.star-rating .star:hover { background:rgba(255,192,72,0.15); color:var(--yellow); }
.star-rating .star.active { background:rgba(255,192,72,0.2); color:var(--yellow); border-color:rgba(255,192,72,0.3); }

/* SCORE GUIDE (appears when star is clicked) */
.score-item-wrap { margin-bottom:4px; }
.score-guide {
  font-size:0.75rem;
  color:var(--text-secondary);
  padding:0 18px;
  max-height:0;
  overflow:hidden;
  transition:all 0.3s ease;
  line-height:1.5;
}
.score-guide.visible {
  padding:8px 18px;
  max-height:60px;
  background:rgba(255,192,72,0.06);
  border-radius:0 0 var(--radius-sm) var(--radius-sm);
  border:1px solid rgba(255,192,72,0.1);
  border-top:none;
}
.score-guide .guide-star {
  color:var(--yellow);
  font-weight:700;
}

/* ADVANCED SCORING */
.advanced-section { margin-top:24px; }
.advanced-section h3 { font-size:1rem; font-weight:600; margin-bottom:16px; color:#a29bfe; }
.adv-grid {
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(300px,1fr));
  gap:10px;
}
.adv-item {
  display:flex;
  align-items:center;
  justify-content:space-between;
  background:rgba(255,255,255,0.02);
  border:1px solid var(--border);
  border-radius:8px;
  padding:10px 14px;
  gap:12px;
}
.adv-item .adv-info { flex:1; min-width:0; }
.adv-item .name { font-size:0.82rem; font-weight:500; }
.adv-item .adv-guide {
  font-size:0.65rem;
  color:var(--text-muted);
  margin-top:3px;
  line-height:1.4;
}
.range-wrap { display:flex; align-items:center; gap:8px; }
.range-wrap input[type=range] {
  -webkit-appearance:none;
  width:100px;
  height:4px;
  border-radius:2px;
  background:rgba(255,255,255,0.1);
  outline:none;
}
.range-wrap input[type=range]::-webkit-slider-thumb {
  -webkit-appearance:none;
  width:16px; height:16px;
  border-radius:50%;
  background:var(--accent);
  cursor:pointer;
  box-shadow:0 0 8px var(--accent-glow);
}
.range-wrap .val {
  font-size:0.8rem;
  font-weight:700;
  min-width:24px;
  text-align:center;
  color:var(--accent);
}

/* EXTRA ANALYSIS SECTIONS */
.analysis-group { margin-top:20px; }
.analysis-group h3 { font-size:1rem; font-weight:600; margin-bottom:12px; }
.analysis-group h3.sat { color:var(--red); }
.analysis-group h3.meta { color:#74b9ff; }
.analysis-group h3.shopify { color:var(--green); }
.analysis-group h3.trend { color:var(--yellow); }

.radio-group {
  display:flex; gap:8px; flex-wrap:wrap;
}
.radio-group label {
  padding:8px 18px;
  border:1px solid var(--border);
  border-radius:20px;
  cursor:pointer;
  font-size:0.82rem;
  transition:all 0.3s;
  text-transform:none;
  letter-spacing:0;
  font-weight:500;
}
.radio-group input { display:none; }
.radio-group input:checked + label {
  background:var(--accent);
  border-color:var(--accent);
  color:#fff;
}
.check-list { display:grid; grid-template-columns:repeat(auto-fit,minmax(220px,1fr)); gap:8px; }
.check-item {
  display:flex; align-items:center; gap:8px;
  padding:8px 12px;
  border:1px solid var(--border);
  border-radius:8px;
  cursor:pointer;
  font-size:0.82rem;
  transition:all 0.3s;
}
.check-item:hover { border-color:rgba(255,255,255,0.15); }
.check-item input { accent-color:var(--accent); }

/* SCORE PREVIEW */
.score-preview {
  margin-top:24px;
  padding:20px;
  background:rgba(255,255,255,0.03);
  border:1px solid var(--border);
  border-radius:var(--radius-sm);
  display:flex;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:16px;
}
.score-circle {
  width:80px; height:80px;
  border-radius:50%;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:1.8rem;
  font-weight:900;
  position:relative;
}
.score-circle::before {
  content:'';
  position:absolute;
  inset:-3px;
  border-radius:50%;
  padding:3px;
  background:conic-gradient(var(--score-color) calc(var(--score-pct)*3.6deg), rgba(255,255,255,0.05) 0);
  -webkit-mask:linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite:xor;
  mask-composite:exclude;
}
.score-label { font-size:0.75rem; color:var(--text-secondary); text-transform:uppercase; letter-spacing:1px; }
.score-verdict { font-size:1.1rem; font-weight:700; }

/* BUTTONS */
.btn {
  padding:12px 32px;
  border:none;
  border-radius:40px;
  font-family:inherit;
  font-size:0.9rem;
  font-weight:600;
  cursor:pointer;
  transition:all 0.3s;
}
.btn-primary {
  background:linear-gradient(135deg,#6c5ce7,#a29bfe);
  color:#fff;
  box-shadow:0 4px 20px var(--accent-glow);
}
.btn-primary:hover { transform:translateY(-2px); box-shadow:0 8px 30px var(--accent-glow); }
.btn-danger {
  background:rgba(255,107,107,0.15);
  color:var(--red);
  border:1px solid rgba(255,107,107,0.2);
  padding:8px 16px;
  font-size:0.78rem;
}
.btn-danger:hover { background:rgba(255,107,107,0.25); }
.btn-reset {
  background:rgba(255,255,255,0.05);
  color:var(--text-secondary);
  border:1px solid var(--border);
  padding:12px 24px;
}
.btn-reset:hover { border-color:var(--text-secondary); color:var(--text-primary); }
.form-actions { margin-top:24px; display:flex; gap:12px; justify-content:flex-end; flex-wrap:wrap; }

/* PRODUCTS GRID */
.products-grid {
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(360px,1fr));
  gap:20px;
}

/* PRODUCT CARD */
.product-card {
  background:var(--bg-glass);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:24px;
  backdrop-filter:blur(10px);
  transition:transform 0.3s, box-shadow 0.3s;
  position:relative;
  overflow:hidden;
}
.product-card:hover {
  transform:translateY(-4px);
  box-shadow:0 12px 40px rgba(0,0,0,0.4);
}
.product-card::before {
  content:'';
  position:absolute;
  top:0;left:0;right:0;
  height:3px;
  background:var(--card-accent);
}
.card-header {
  display:flex;
  justify-content:space-between;
  align-items:flex-start;
  margin-bottom:16px;
}
.card-header h3 { font-size:1.05rem; font-weight:700; flex:1; margin-right:12px; }
.card-badge {
  padding:4px 12px;
  border-radius:20px;
  font-size:0.68rem;
  font-weight:700;
  text-transform:uppercase;
  letter-spacing:1px;
  white-space:nowrap;
}
.badge-winner { background:rgba(0,214,143,0.2); color:var(--green); border:1px solid rgba(0,214,143,0.3); }
.badge-potential { background:rgba(255,192,72,0.2); color:var(--yellow); border:1px solid rgba(255,192,72,0.3); }
.badge-weak { background:rgba(255,107,107,0.2); color:var(--red); border:1px solid rgba(255,107,107,0.3); }

.card-niche {
  display:inline-block;
  padding:4px 12px;
  background:rgba(108,92,231,0.15);
  border-radius:20px;
  font-size:0.72rem;
  color:var(--accent);
  margin-bottom:12px;
  font-weight:500;
}

.card-score-ring {
  display:flex;
  align-items:center;
  gap:16px;
  margin-bottom:16px;
  padding:16px;
  background:rgba(255,255,255,0.02);
  border-radius:var(--radius-sm);
}
.mini-ring {
  width:56px; height:56px;
  border-radius:50%;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:1.3rem;
  font-weight:800;
  position:relative;
  flex-shrink:0;
}
.mini-ring::before {
  content:'';
  position:absolute;
  inset:-2px;
  border-radius:50%;
  padding:2px;
  background:conic-gradient(var(--score-color) calc(var(--score-pct)*3.6deg), rgba(255,255,255,0.05) 0);
  -webkit-mask:linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite:xor;
  mask-composite:exclude;
}
.score-breakdown { flex:1; }
.score-breakdown .score-title { font-size:0.7rem; color:var(--text-muted); text-transform:uppercase; letter-spacing:1px; }
.score-breakdown .score-val { font-size:1.5rem; font-weight:800; }

.card-bars { margin-bottom:16px; }
.bar-item { margin-bottom:8px; }
.bar-label { display:flex; justify-content:space-between; font-size:0.72rem; color:var(--text-secondary); margin-bottom:4px; }
.bar-track { height:4px; background:rgba(255,255,255,0.06); border-radius:2px; overflow:hidden; }
.bar-fill { height:100%; border-radius:2px; transition:width 0.8s ease; }

.card-meta { display:flex; flex-wrap:wrap; gap:8px; margin-bottom:16px; }
.card-meta-item {
  padding:4px 10px;
  background:rgba(255,255,255,0.04);
  border-radius:6px;
  font-size:0.7rem;
  color:var(--text-secondary);
}

.card-notes {
  font-size:0.8rem;
  color:var(--text-secondary);
  line-height:1.5;
  margin-bottom:16px;
  padding:12px;
  background:rgba(255,255,255,0.02);
  border-radius:8px;
  border-left:3px solid var(--accent);
}

.card-actions {
  display:flex;
  gap:8px;
  justify-content:space-between;
  align-items:center;
}
.card-link {
  color:var(--accent);
  font-size:0.8rem;
  text-decoration:none;
  font-weight:500;
  transition:color 0.3s;
}
.card-link:hover { color:#a29bfe; }

/* FILTER BAR */
.filter-bar {
  display:flex;
  gap:10px;
  margin-bottom:20px;
  flex-wrap:wrap;
  align-items:center;
}
.filter-bar input,
.filter-bar select {
  background:rgba(255,255,255,0.05);
  border:1px solid var(--border);
  border-radius:40px;
  padding:10px 20px;
  color:var(--text-primary);
  font-family:inherit;
  font-size:0.85rem;
  outline:none;
  transition:border-color 0.3s;
}
.filter-bar input:focus,
.filter-bar select:focus { border-color:var(--accent); }
.filter-bar select option { background:#1a1a2e; }

/* EMPTY STATE */
.empty-state {
  text-align:center;
  padding:80px 20px;
  color:var(--text-muted);
}
.empty-state .icon { font-size:4rem; margin-bottom:16px; }
.empty-state h3 { font-size:1.2rem; color:var(--text-secondary); margin-bottom:8px; }

/* PANEL TOGGLE */
.panel { display:none; }
.panel.active { display:block; }

/* MODAL */
.modal-overlay {
  position:fixed; inset:0;
  background:rgba(0,0,0,0.7);
  z-index:100;
  display:none;
  align-items:center;
  justify-content:center;
  backdrop-filter:blur(4px);
}
.modal-overlay.show { display:flex; }
.modal {
  background:var(--bg-secondary);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:32px;
  max-width:500px;
  width:90%;
}
.modal h3 { margin-bottom:16px; }
.modal-actions { display:flex; gap:12px; justify-content:flex-end; margin-top:24px; }

/* TOAST */
.toast-container { position:fixed; top:20px; right:20px; z-index:200; display:flex; flex-direction:column; gap:10px; }
.toast {
  padding:14px 24px;
  border-radius:var(--radius-sm);
  font-size:0.85rem;
  font-weight:500;
  animation:slideIn 0.3s ease, fadeOut 0.3s ease 2.7s;
  backdrop-filter:blur(10px);
}
.toast-success { background:rgba(0,214,143,0.2); border:1px solid rgba(0,214,143,0.3); color:var(--green); }
.toast-error { background:rgba(255,107,107,0.2); border:1px solid rgba(255,107,107,0.3); color:var(--red); }
.toast-info { background:rgba(108,92,231,0.2); border:1px solid rgba(108,92,231,0.3); color:#a29bfe; }

@keyframes slideIn { from { transform:translateX(100%); opacity:0; } to { transform:translateX(0); opacity:1; } }
@keyframes fadeOut { to { opacity:0; transform:translateY(-10px); } }

/* RESPONSIVE */
@media(max-width:1024px) {
  .score-grid { grid-template-columns:1fr; }
  .adv-grid { grid-template-columns:repeat(auto-fit,minmax(260px,1fr)); }
}

@media(max-width:768px) {
  .app { padding:12px; }
  .header { padding:24px 12px 20px; margin-bottom:20px; }
  .header h1 { font-size:1.6rem; }
  .header p { font-size:0.82rem; }
  .summary-panel { grid-template-columns:repeat(2,1fr); gap:10px; }
  .summary-card { padding:16px; }
  .summary-card .value { font-size:1.8rem; }
  .summary-card .label { font-size:0.68rem; }
  .tabs { gap:6px; }
  .tab-btn { padding:8px 14px; font-size:0.78rem; }
  .products-grid { grid-template-columns:1fr; gap:14px; }
  .form-grid { grid-template-columns:1fr; }
  .form-panel { padding:16px; }
  .form-panel h2 { font-size:1.1rem; }
  .score-grid { grid-template-columns:1fr; }
  .adv-grid { grid-template-columns:1fr; }
  .score-item { padding:10px 12px; flex-wrap:wrap; gap:8px; }
  .score-item .info { min-width:100%; }
  .star-rating { width:100%; justify-content:flex-start; }
  .star-rating .star { width:36px; height:36px; font-size:1rem; }
  .adv-item { flex-wrap:wrap; padding:10px 12px; }
  .adv-item .adv-info { min-width:100%; }
  .range-wrap { width:100%; }
  .range-wrap input[type=range] { flex:1; width:auto; }
  .filter-bar { flex-direction:column; }
  .filter-bar input,
  .filter-bar select { width:100%; }
  .card-score-ring { padding:12px; }
  .score-preview { flex-direction:column; text-align:center; }
  .form-actions { justify-content:stretch; }
  .form-actions .btn { flex:1; text-align:center; }
  .card-actions { flex-direction:column; gap:10px; }
  .card-actions > div { width:100%; display:flex; justify-content:center; }
  .modal { padding:20px; width:95%; }
  .check-list { grid-template-columns:1fr; }
  .radio-group { flex-wrap:wrap; }
  .radio-group label { flex:1; min-width:80px; text-align:center; }
  .toast-container { top:10px; right:10px; left:10px; }
  .toast { font-size:0.78rem; padding:10px 16px; }
}

@media(max-width:380px) {
  .header h1 { font-size:1.3rem; }
  .summary-panel { grid-template-columns:1fr; }
  .star-rating .star { width:32px; height:32px; }
  .tab-btn { padding:7px 10px; font-size:0.72rem; }
}

/* LOGIN SCREEN */
.login-overlay {
  position:fixed;
  inset:0;
  background:var(--bg-primary);
  z-index:999;
  display:flex;
  align-items:center;
  justify-content:center;
}
.login-overlay::before {
  content:'';
  position:absolute;
  top:-50%;left:-50%;
  width:200%;height:200%;
  background:radial-gradient(circle at 30% 30%, rgba(108,92,231,0.12) 0%, transparent 50%),
             radial-gradient(circle at 70% 70%, rgba(0,214,143,0.08) 0%, transparent 50%);
  pointer-events:none;
}
.login-box {
  position:relative;
  background:var(--bg-glass);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:48px 40px;
  max-width:420px;
  width:90%;
  text-align:center;
  backdrop-filter:blur(20px);
  box-shadow:0 20px 60px rgba(0,0,0,0.5);
}
.login-box h2 {
  font-size:1.8rem;
  font-weight:800;
  margin-bottom:8px;
  background:linear-gradient(135deg,#6c5ce7,#a29bfe);
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
}
.login-box p {
  color:var(--text-secondary);
  font-size:0.85rem;
  margin-bottom:28px;
}
.login-box input[type=password] {
  width:100%;
  padding:14px 20px;
  background:rgba(255,255,255,0.05);
  border:1px solid var(--border);
  border-radius:var(--radius-sm);
  color:var(--text-primary);
  font-family:inherit;
  font-size:1rem;
  outline:none;
  transition:border-color 0.3s, box-shadow 0.3s;
  margin-bottom:16px;
  text-align:center;
  letter-spacing:4px;
}
.login-box input[type=password]:focus {
  border-color:var(--accent);
  box-shadow:0 0 0 3px var(--accent-glow);
}
.login-box .btn { width:100%; padding:14px; font-size:1rem; }
.login-error {
  color:var(--red);
  font-size:0.82rem;
  margin-top:12px;
  min-height:20px;
}

/* DETAIL MODAL */
.detail-section { margin-bottom:16px; }
.detail-section h4 { font-size:0.85rem; color:var(--accent); margin-bottom:8px; text-transform:uppercase; letter-spacing:1px; }
.detail-row { display:flex; justify-content:space-between; padding:6px 0; border-bottom:1px solid var(--border); font-size:0.85rem; }
.detail-row .dl { color:var(--text-secondary); }

@media(max-width:768px) {
  .login-box { padding:32px 24px; }
  .login-box h2 { font-size:1.4rem; }
  .detail-row { font-size:0.78rem; flex-wrap:wrap; gap:4px; }
}