/* ── CSS Variables ─────────────────────────────────────────────────────── */
:root {
  --bg: #F7F8FC;
  --surface: #FFFFFF;
  --surface2: #EEF0F7;
  --border: #DDE1EE;
  --text: #111827;
  --text-muted: #6B7280;
  --text-subtle: #9CA3AF;
  --primary: #4F46E5;
  --primary-hover: #4338CA;
  --primary-light: #EEF2FF;
  --accent: #10B981;
  --accent-hover: #059669;
  --warn: #F59E0B;
  --danger: #EF4444;
  --shadow-sm: 0 1px 3px rgba(0,0,0,.07), 0 1px 2px rgba(0,0,0,.05);
  --shadow: 0 4px 16px rgba(0,0,0,.08);
  --shadow-lg: 0 12px 40px rgba(0,0,0,.12);
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 20px;
  --nav-h: 64px;
  --font-body: 'Inter', sans-serif;
  --font-display: 'Outfit', sans-serif;
  --transition: .2s cubic-bezier(.4,0,.2,1);
}
[data-theme="dark"] {
  --bg: #0F1117;
  --surface: #1A1D2E;
  --surface2: #242740;
  --border: #2E3254;
  --text: #F1F3FF;
  --text-muted: #9BA3C7;
  --text-subtle: #6B7280;
  --primary: #6366F1;
  --primary-hover: #818CF8;
  --primary-light: #1E2040;
  --accent: #10B981;
  --shadow-sm: 0 1px 3px rgba(0,0,0,.3);
  --shadow: 0 4px 16px rgba(0,0,0,.4);
  --shadow-lg: 0 12px 40px rgba(0,0,0,.5);
}

/* ── Reset & Base ─────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  font-size: 15px;
  line-height: 1.65;
  transition: background var(--transition), color var(--transition);
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ── Utility ──────────────────────────────────────────────────────────── */
.container { max-width: 1180px; margin: 0 auto; padding: 0 20px; }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 20px; border-radius: var(--radius-sm);
  font-family: var(--font-body); font-size: 14px; font-weight: 600;
  cursor: pointer; border: none; transition: all var(--transition);
  text-decoration: none; white-space: nowrap;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-hover); box-shadow: 0 4px 14px rgba(79,70,229,.35); transform: translateY(-1px); text-decoration: none; color:#fff; }
.btn-outline { background: transparent; color: var(--primary); border: 1.5px solid var(--primary); }
.btn-outline:hover { background: var(--primary-light); text-decoration: none; }
.btn-accent { background: var(--accent); color: #fff; }
.btn-accent:hover { background: var(--accent-hover); transform: translateY(-1px); text-decoration: none; color:#fff; }
.btn-ghost { background: var(--surface2); color: var(--text); }
.btn-ghost:hover { background: var(--border); text-decoration: none; color: var(--text); }
.btn-lg { padding: 14px 28px; font-size: 16px; border-radius: var(--radius); }
.badge {
  display: inline-flex; align-items: center; padding: 3px 10px;
  border-radius: 99px; font-size: 11px; font-weight: 700; letter-spacing: .04em;
}
.badge-low    { background: #D1FAE5; color: #065F46; }
.badge-medium { background: #FEF3C7; color: #92400E; }
.badge-high   { background: #FEE2E2; color: #991B1B; }
.badge-info   { background: var(--primary-light); color: var(--primary); }
.badge-green  { background: #D1FAE5; color: #065F46; }
.badge-orange { background: #FEF3C7; color: #92400E; }
.badge-gray   { background: var(--surface2); color: var(--text-muted); }
[data-theme="dark"] .badge-low    { background: #064E3B; color: #6EE7B7; }
[data-theme="dark"] .badge-medium { background: #78350F; color: #FCD34D; }
[data-theme="dark"] .badge-high   { background: #7F1D1D; color: #FCA5A5; }
[data-theme="dark"] .badge-info   { background: #1E2040; color: #818CF8; }
[data-theme="dark"] .badge-green  { background: #064E3B; color: #6EE7B7; }
[data-theme="dark"] .badge-orange { background: #78350F; color: #FCD34D; }

/* ── Navbar ───────────────────────────────────────────────────────────── */
.navbar {
  position: sticky; top: 0; z-index: 1000;
  height: var(--nav-h); background: var(--surface);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(12px);
}
.navbar .container { height: 100%; display: flex; align-items: center; gap: 0; }
.nav-logo {
  font-family: var(--font-display); font-weight: 800; font-size: 20px;
  color: var(--text); white-space: nowrap; margin-right: 24px;
  text-decoration: none;
}
.nav-logo span { color: var(--primary); }
.nav-menu { display: flex; align-items: center; gap: 4px; flex: 1; overflow: visible; }
.nav-item { position: relative; }
.nav-link {
  display: flex; align-items: center; gap: 5px;
  padding: 8px 12px; border-radius: var(--radius-sm);
  color: var(--text-muted); font-size: 13.5px; font-weight: 500;
  cursor: pointer; white-space: nowrap; background: none; border: none;
  font-family: var(--font-body);
  transition: all var(--transition);
}
.nav-link:hover, .nav-link.active { color: var(--primary); background: var(--primary-light); }
.nav-link svg { transition: transform var(--transition); }
.nav-item:hover .nav-link svg { transform: rotate(180deg); }
.dropdown {
  position: absolute; top: 100% ; left: 50%;
  transform: translateX(-50%) translateY(-8px);
  min-width: 280px; background: var(--surface);
  border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: var(--shadow-lg); padding: 8px;
  opacity: 0; visibility: hidden; pointer-events: none;
  transition: all var(--transition);
  z-index: 999;
}
.nav-item:hover .dropdown { opacity: 1; visibility: visible; pointer-events: all; transform: translateX(-50%) translateY(0); }
.dropdown a {
  display: flex; align-items: center; gap: 10px; padding: 9px 12px;
  border-radius: var(--radius-sm); color: var(--text); font-size: 13px;
  transition: all var(--transition); text-decoration: none;
}
.dropdown a:hover { background: var(--primary-light); color: var(--primary); }
.dropdown a svg { flex-shrink: 0; color: var(--primary); }
.nav-actions { display: flex; align-items: center; gap: 8px; margin-left: auto; flex-shrink: 0; }
.theme-btn {
  width: 38px; height: 38px; border-radius: var(--radius-sm);
  background: var(--surface2); border: 1px solid var(--border);
  cursor: pointer; display: flex; align-items: center; justify-content: center;
  color: var(--text-muted); transition: all var(--transition);
}
.theme-btn:hover { background: var(--primary-light); color: var(--primary); }
.hamburger {
  display: none; flex-direction: column; gap: 5px;
  width: 38px; height: 38px; background: var(--surface2);
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  cursor: pointer; align-items: center; justify-content: center;
}
.hamburger span {
  width: 18px; height: 2px; background: var(--text-muted);
  border-radius: 2px; transition: all var(--transition);
}
.mobile-menu {
  display: none; position: fixed; top: var(--nav-h); left: 0; right: 0; bottom: 0;
  background: var(--surface); z-index: 999; overflow-y: auto;
  padding: 16px 20px; flex-direction: column; gap: 4px;
}
.mobile-menu.open { display: flex; }
.mobile-menu a, .mobile-menu button {
  display: flex; align-items: center; gap: 10px; padding: 12px 14px;
  border-radius: var(--radius-sm); color: var(--text); font-size: 14px;
  font-weight: 500; text-decoration: none; background: none; border: none;
  font-family: var(--font-body); cursor: pointer; width: 100%;
  transition: all var(--transition);
}
.mobile-menu a:hover, .mobile-menu button:hover { background: var(--primary-light); color: var(--primary); }
.mobile-section-title {
  font-size: 11px; font-weight: 700; letter-spacing: .08em;
  color: var(--text-subtle); text-transform: uppercase;
  padding: 12px 14px 4px; margin-top: 8px;
}

/* ── Breadcrumb ───────────────────────────────────────────────────────── */
.breadcrumb { padding: 14px 0 0; }
.breadcrumb ol { display: flex; flex-wrap: wrap; gap: 6px; list-style: none; align-items: center; }
.breadcrumb li { display: flex; align-items: center; gap: 6px; }
.breadcrumb li + li::before { content: '/'; color: var(--text-subtle); font-size: 13px; }
.breadcrumb a { color: var(--text-muted); font-size: 13px; }
.breadcrumb span { color: var(--text); font-size: 13px; font-weight: 500; }

/* ── Hero ─────────────────────────────────────────────────────────────── */
.hero {
  padding: 60px 0 50px;
  background: linear-gradient(135deg, var(--primary-light) 0%, var(--bg) 60%);
  border-bottom: 1px solid var(--border);
  position: relative; overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute; top: -120px; right: -180px;
  width: 500px; height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(99,102,241,.12) 0%, transparent 70%);
  pointer-events: none;
}
.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--primary-light); border: 1px solid rgba(99,102,241,.25);
  border-radius: 99px; padding: 5px 14px;
  font-size: 12px; font-weight: 700; color: var(--primary);
  letter-spacing: .06em; text-transform: uppercase; margin-bottom: 18px;
}
.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(32px, 5vw, 54px);
  font-weight: 800; line-height: 1.12;
  color: var(--text); margin-bottom: 18px;
  letter-spacing: -.02em;
}
.hero h1 em { font-style: normal; color: var(--primary); }
.hero p { font-size: 17px; color: var(--text-muted); max-width: 580px; margin-bottom: 36px; }
.hero-stats { display: flex; flex-wrap: wrap; gap: 24px; margin-bottom: 0; }
.stat-pill {
  display: flex; align-items: center; gap: 10px;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 10px 16px;
  box-shadow: var(--shadow-sm);
}
.stat-pill strong { font-family: var(--font-display); font-size: 20px; font-weight: 800; color: var(--primary); }
.stat-pill span { font-size: 12px; color: var(--text-muted); }

/* ── Tool Card ────────────────────────────────────────────────────────── */
.tool-section { padding: 48px 0; }
.tool-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 40px;
  box-shadow: var(--shadow);
}
.tool-tabs { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 28px; }
.tab-btn {
  padding: 8px 16px; border-radius: var(--radius-sm);
  border: 1px solid var(--border); background: var(--surface2);
  color: var(--text-muted); font-size: 13px; font-weight: 600;
  cursor: pointer; transition: all var(--transition);
  font-family: var(--font-body);
}
.tab-btn.active { background: var(--primary); color: #fff; border-color: var(--primary); }
.tab-btn:hover:not(.active) { border-color: var(--primary); color: var(--primary); }

.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-bottom: 20px; }
.form-full { grid-column: 1/-1; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label { font-size: 13px; font-weight: 600; color: var(--text-muted); letter-spacing: .02em; }
.form-group input, .form-group select {
  padding: 11px 14px; border-radius: var(--radius-sm);
  border: 1.5px solid var(--border); background: var(--bg);
  color: var(--text); font-size: 14px; font-family: var(--font-body);
  transition: all var(--transition);
  outline: none;
}
.form-group input:focus, .form-group select:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(99,102,241,.12); }
.form-group input.error { border-color: var(--danger); }
.field-hint { font-size: 11.5px; color: var(--text-subtle); }
.field-error { font-size: 11.5px; color: var(--danger); display: none; }
.field-error.show { display: block; }

.options-row { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 24px; align-items: flex-end; }
.options-row .form-group { flex: 1; min-width: 140px; }

.run-btn {
  width: 100%; padding: 14px; font-size: 16px; font-weight: 700;
  background: linear-gradient(135deg, var(--primary), #6366F1);
  color: #fff; border: none; border-radius: var(--radius);
  cursor: pointer; font-family: var(--font-display);
  transition: all var(--transition); display: flex; align-items: center; justify-content: center; gap: 10px;
}
.run-btn:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(79,70,229,.35); }
.run-btn:active { transform: translateY(0); }
.run-btn:disabled { opacity: .65; cursor: not-allowed; transform: none; }

/* Loading */
.loader { display: none; text-align: center; padding: 56px 0; }
.loader.show { display: block; }
.spinner {
  width: 52px; height: 52px; margin: 0 auto 20px;
  border: 4px solid var(--border);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin .75s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.loader p { color: var(--text-muted); font-size: 14px; }
.loader strong { color: var(--text); display: block; font-size: 16px; margin-bottom: 6px; }

/* Results */
#results { display: none; animation: fadeIn .4s ease; }
#results.show { display: block; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: translateY(0); } }

.results-header {
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 12px; margin-bottom: 28px;
  padding-bottom: 20px; border-bottom: 1px solid var(--border);
}
.results-header h2 { font-family: var(--font-display); font-size: 22px; font-weight: 800; }
.results-meta { display: flex; flex-wrap: wrap; gap: 8px; }

/* Analysis Box */
.analysis-box {
  background: linear-gradient(135deg, var(--primary-light), var(--bg));
  border: 1px solid rgba(99,102,241,.2);
  border-radius: var(--radius); padding: 24px; margin-bottom: 24px;
  display: grid; grid-template-columns: repeat(auto-fit, minmax(200px,1fr)); gap: 16px;
}
.analysis-item label { font-size: 11px; font-weight: 700; color: var(--primary); text-transform: uppercase; letter-spacing: .08em; display: block; margin-bottom: 4px; }
.analysis-item p { font-size: 14px; font-weight: 500; color: var(--text); }

/* Keyword Table */
.table-controls { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; justify-content: space-between; margin-bottom: 16px; }
.search-filter { position: relative; }
.search-filter input {
  padding: 8px 12px 8px 34px; border-radius: var(--radius-sm);
  border: 1px solid var(--border); background: var(--bg);
  font-size: 13px; color: var(--text); width: 220px; font-family: var(--font-body);
}
.search-filter input:focus { outline: none; border-color: var(--primary); }
.search-filter svg { position: absolute; left: 10px; top: 50%; transform: translateY(-50%); color: var(--text-muted); pointer-events: none; }
.sort-btns { display: flex; gap: 6px; }
.sort-btn {
  padding: 7px 12px; font-size: 12px; font-weight: 600;
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  background: var(--surface2); color: var(--text-muted);
  cursor: pointer; font-family: var(--font-body); transition: all var(--transition);
}
.sort-btn.active { background: var(--primary); color: #fff; border-color: var(--primary); }
.sort-btn:hover:not(.active) { border-color: var(--primary); color: var(--primary); }
.export-btns { display: flex; gap: 6px; }
.export-btn {
  padding: 7px 12px; font-size: 12px; font-weight: 600;
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  background: var(--surface2); color: var(--text-muted);
  cursor: pointer; font-family: var(--font-body); transition: all var(--transition);
  display: flex; align-items: center; gap: 5px;
}
.export-btn:hover { background: var(--accent); color: #fff; border-color: var(--accent); }

.table-wrap { overflow-x: auto; border-radius: var(--radius); border: 1px solid var(--border); }
table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
thead { background: var(--surface2); }
th {
  padding: 12px 14px; text-align: left; font-weight: 700;
  color: var(--text-muted); font-size: 11.5px; letter-spacing: .05em;
  text-transform: uppercase; white-space: nowrap;
  cursor: pointer; user-select: none;
}
th:hover { color: var(--primary); }
th .sort-arrow { margin-left: 4px; opacity: .4; }
th.sort-asc .sort-arrow::after { content: ' ↑'; }
th.sort-desc .sort-arrow::after { content: ' ↓'; }
td { padding: 11px 14px; border-top: 1px solid var(--border); vertical-align: middle; }
tr:hover td { background: var(--primary-light); }
.kw-text { font-weight: 600; color: var(--text); }
.copy-kw {
  background: none; border: none; cursor: pointer;
  color: var(--text-subtle); padding: 2px 5px; margin-left: 4px;
  border-radius: 4px; font-size: 11px; transition: all var(--transition);
}
.copy-kw:hover { color: var(--primary); background: var(--primary-light); }
.relevance-bar { width: 60px; height: 6px; background: var(--border); border-radius: 3px; overflow: hidden; display: inline-block; vertical-align: middle; margin-right: 5px; }
.relevance-fill { height: 100%; background: linear-gradient(90deg, var(--accent), var(--primary)); border-radius: 3px; }

/* Clusters */
.clusters-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px,1fr)); gap: 16px; margin-top: 24px; }
.cluster-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 18px; transition: all var(--transition);
}
.cluster-card:hover { box-shadow: var(--shadow); border-color: var(--primary); }
.cluster-card h4 { font-family: var(--font-display); font-size: 15px; font-weight: 700; margin-bottom: 10px; color: var(--primary); }
.cluster-kw { display: flex; flex-wrap: wrap; gap: 6px; }
.cluster-kw span {
  padding: 3px 10px; background: var(--surface2); border-radius: 99px;
  font-size: 12px; color: var(--text-muted); cursor: pointer;
  transition: all var(--transition);
}
.cluster-kw span:hover { background: var(--primary-light); color: var(--primary); }

/* Content Ideas */
.ideas-list { display: flex; flex-direction: column; gap: 10px; margin-top: 16px; }
.idea-item {
  display: flex; align-items: flex-start; gap: 12px;
  background: var(--surface2); border-radius: var(--radius-sm);
  padding: 12px 14px;
}
.idea-num {
  width: 24px; height: 24px; border-radius: 50%;
  background: var(--primary); color: #fff;
  font-size: 12px; font-weight: 700;
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.idea-item p { font-size: 14px; font-weight: 500; color: var(--text); }

/* Meta Suggestions */
.meta-box {
  background: var(--surface2); border-radius: var(--radius); padding: 20px; margin-top: 16px;
}
.meta-field { margin-bottom: 14px; }
.meta-field:last-child { margin-bottom: 0; }
.meta-field label { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: .07em; color: var(--text-subtle); display: block; margin-bottom: 5px; }
.meta-field p { font-size: 14px; color: var(--text); background: var(--surface); padding: 10px 12px; border-radius: var(--radius-sm); border: 1px solid var(--border); }

/* Section Titles */
.section-title {
  font-family: var(--font-display); font-size: 20px; font-weight: 800;
  color: var(--text); margin-bottom: 4px; margin-top: 28px;
}
.section-title + p { color: var(--text-muted); font-size: 13.5px; margin-bottom: 0; }
.section-divider { border: none; border-top: 1px solid var(--border); margin: 24px 0; }

/* Share & Feedback */
.action-bar {
  display: flex; flex-wrap: wrap; gap: 12px;
  padding: 24px; background: var(--surface2);
  border-radius: var(--radius); margin-top: 28px;
  align-items: center; justify-content: space-between;
}
.action-bar p { font-size: 14px; font-weight: 600; color: var(--text); }
.share-buttons { display: flex; flex-wrap: wrap; gap: 8px; }
.share-btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 14px; border-radius: var(--radius-sm);
  font-size: 12.5px; font-weight: 600; cursor: pointer;
  border: none; font-family: var(--font-body); text-decoration: none;
  transition: all var(--transition);
}
.share-btn.twitter { background: #1DA1F2; color: #fff; }
.share-btn.linkedin { background: #0A66C2; color: #fff; }
.share-btn.copy-link { background: var(--surface); border: 1px solid var(--border); color: var(--text); }
.share-btn:hover { filter: brightness(1.08); transform: translateY(-1px); }

/* Feedback Modal */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,.5);
  z-index: 2000; display: none; align-items: center; justify-content: center;
  backdrop-filter: blur(4px);
}
.modal-overlay.open { display: flex; }
.modal {
  background: var(--surface); border-radius: var(--radius-lg);
  padding: 36px; max-width: 420px; width: calc(100% - 40px);
  box-shadow: var(--shadow-lg); animation: slideUp .3s ease;
}
@keyframes slideUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
.modal h3 { font-family: var(--font-display); font-size: 22px; font-weight: 800; margin-bottom: 8px; }
.modal p { color: var(--text-muted); font-size: 14px; margin-bottom: 22px; }
.stars { display: flex; gap: 8px; margin-bottom: 18px; }
.star { font-size: 28px; cursor: pointer; transition: all var(--transition); filter: grayscale(1) opacity(.4); }
.star.active { filter: grayscale(0) opacity(1); }
.modal textarea {
  width: 100%; padding: 12px; border-radius: var(--radius-sm);
  border: 1.5px solid var(--border); background: var(--bg);
  color: var(--text); font-size: 14px; font-family: var(--font-body);
  resize: vertical; min-height: 90px; margin-bottom: 16px;
}
.modal textarea:focus { outline: none; border-color: var(--primary); }
.modal-footer { display: flex; gap: 10px; justify-content: flex-end; }
.modal-close { position: absolute; top: 16px; right: 20px; background: none; border: none; font-size: 22px; cursor: pointer; color: var(--text-muted); }

/* Error Message */
.error-msg {
  display: none; background: #FEF2F2; border: 1px solid #FECACA;
  border-radius: var(--radius); padding: 18px 22px;
  color: #991B1B; font-size: 14px; margin-top: 16px;
  align-items: flex-start; gap: 12px;
}
.error-msg.show { display: flex; }
[data-theme="dark"] .error-msg { background: #3B0F0F; border-color: #7F1D1D; color: #FCA5A5; }

/* Features Section */
.features { padding: 80px 0; }
.features-header { text-align: center; max-width: 600px; margin: 0 auto 48px; }
.section-eyebrow {
  display: inline-block; background: var(--primary-light);
  color: var(--primary); font-size: 11.5px; font-weight: 700;
  letter-spacing: .08em; text-transform: uppercase;
  padding: 4px 12px; border-radius: 99px; margin-bottom: 14px;
}
.features-header h2 { font-family: var(--font-display); font-size: clamp(26px,4vw,40px); font-weight: 800; margin-bottom: 14px; }
.features-header p { color: var(--text-muted); font-size: 16px; }
.features-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px,1fr)); gap: 20px; }
.feature-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 28px;
  transition: all var(--transition);
  position: relative; overflow: hidden;
}
.feature-card:hover { box-shadow: var(--shadow); border-color: var(--primary); transform: translateY(-3px); }
.feature-icon {
  width: 48px; height: 48px; border-radius: var(--radius-sm);
  background: var(--primary-light); display: flex; align-items: center;
  justify-content: center; margin-bottom: 16px; color: var(--primary);
}
.feature-card h3 { font-family: var(--font-display); font-size: 17px; font-weight: 700; margin-bottom: 8px; }
.feature-card p { color: var(--text-muted); font-size: 14px; }

/* How It Works */
.how-it-works { padding: 80px 0; background: var(--surface2); }
.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px,1fr)); gap: 0; position: relative; }
.steps::before {
  content: ''; position: absolute; top: 32px; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  pointer-events: none;
}
.step { text-align: center; padding: 0 20px; position: relative; }
.step-num {
  width: 64px; height: 64px; border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), #6366F1);
  color: #fff; font-family: var(--font-display); font-size: 22px; font-weight: 800;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 20px; position: relative; z-index: 1;
  box-shadow: 0 4px 16px rgba(99,102,241,.35);
}
.step h3 { font-family: var(--font-display); font-size: 16px; font-weight: 700; margin-bottom: 8px; }
.step p { font-size: 13.5px; color: var(--text-muted); }

/* SEO Article */
.seo-article { padding: 72px 0; }
.article-wrap {
  max-width: 820px; margin: 0 auto;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 48px;
}
.article-wrap h2 { font-family: var(--font-display); font-size: 26px; font-weight: 800; margin-bottom: 18px; }
.article-wrap h3 { font-family: var(--font-display); font-size: 18px; font-weight: 700; margin: 24px 0 10px; }
.article-wrap p { color: var(--text-muted); font-size: 15px; line-height: 1.75; margin-bottom: 16px; }
.article-wrap ul { padding-left: 20px; margin-bottom: 16px; color: var(--text-muted); font-size: 15px; line-height: 1.75; }
.article-wrap ul li { margin-bottom: 8px; }
.article-wrap strong { color: var(--text); }

/* FAQ */
.faq { padding: 80px 0; }
.faq-list { max-width: 760px; margin: 48px auto 0; display: flex; flex-direction: column; gap: 12px; }
.faq-item { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.faq-q {
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 22px; cursor: pointer; font-weight: 600; font-size: 15px;
  gap: 14px;
}
.faq-q svg { flex-shrink: 0; color: var(--primary); transition: transform var(--transition); }
.faq-item.open .faq-q svg { transform: rotate(180deg); }
.faq-a { display: none; padding: 0 22px 18px; color: var(--text-muted); font-size: 14.5px; line-height: 1.7; }
.faq-item.open .faq-a { display: block; }

/* CTA */
.cta {
  padding: 88px 0; text-align: center;
  background: linear-gradient(135deg, var(--primary) 0%, #6366F1 50%, var(--accent) 100%);
  position: relative; overflow: hidden;
}
.cta::before {
  content: ''; position: absolute; inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.04'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.cta * { position: relative; }
.cta h2 { font-family: var(--font-display); font-size: clamp(28px,5vw,48px); font-weight: 800; color: #fff; margin-bottom: 16px; }
.cta p { color: rgba(255,255,255,.8); font-size: 17px; margin-bottom: 36px; max-width: 500px; margin-left: auto; margin-right: auto; }
.cta-buttons { display: flex; flex-wrap: wrap; gap: 14px; justify-content: center; }
.btn-white { background: #fff; color: var(--primary); font-weight: 700; }
.btn-white:hover { background: #F0F0FF; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,0,0,.2); text-decoration: none; color: var(--primary); }
.btn-white-outline { background: transparent; color: #fff; border: 2px solid rgba(255,255,255,.5); font-weight: 700; }
.btn-white-outline:hover { background: rgba(255,255,255,.1); border-color: #fff; transform: translateY(-2px); text-decoration: none; color:#fff; }

/* Related Tools Grid */
.related-tools { padding: 64px 0; }
.tools-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 12px; }
.tool-link {
  display: flex; align-items: center; gap: 10px;
  padding: 12px 14px; background: var(--surface);
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  color: var(--text); font-size: 13px; font-weight: 500;
  transition: all var(--transition); text-decoration: none;
}
.tool-link:hover { border-color: var(--primary); color: var(--primary); background: var(--primary-light); text-decoration: none; }
.tool-link svg { flex-shrink: 0; color: var(--primary); }

/* Footer */
.footer-tools { padding: 56px 0; background: var(--surface2); border-top: 1px solid var(--border); }
.footer-tools-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 24px; }
.footer-tools-col h4 { font-size: 13px; font-weight: 700; color: var(--text); margin-bottom: 12px; letter-spacing: .03em; }
.footer-tools-col ul { list-style: none; display: flex; flex-direction: column; gap: 6px; }
.footer-tools-col ul li a { font-size: 12.5px; color: var(--text-muted); transition: color var(--transition); }
.footer-tools-col ul li a:hover { color: var(--primary); }

footer { background: var(--surface); border-top: 1px solid var(--border); padding: 40px 0 24px; }
.footer-inner { display: grid; grid-template-columns: 1.5fr repeat(3, 1fr); gap: 32px; margin-bottom: 32px; }
.footer-brand p { font-size: 13px; color: var(--text-muted); margin-top: 10px; max-width: 260px; }
.footer-col h4 { font-size: 13px; font-weight: 700; margin-bottom: 14px; color: var(--text); }
.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.footer-col ul li a { font-size: 13px; color: var(--text-muted); transition: color var(--transition); }
.footer-col ul li a:hover { color: var(--primary); }
.footer-bottom {
  display: flex; flex-wrap: wrap; gap: 12px; align-items: center; justify-content: space-between;
  padding-top: 24px; border-top: 1px solid var(--border);
}
.footer-bottom p { font-size: 12.5px; color: var(--text-subtle); }
.footer-links { display: flex; gap: 20px; }
.footer-links a { font-size: 12.5px; color: var(--text-subtle); }
.footer-links a:hover { color: var(--primary); }

/* Cookie Banner */
.cookie-banner {
  position: fixed; bottom: 0; left: 0; right: 0; z-index: 1500;
  background: var(--surface); border-top: 1px solid var(--border);
  padding: 16px 24px; display: flex; align-items: center; flex-wrap: wrap; gap: 14px;
  box-shadow: 0 -4px 20px rgba(0,0,0,.1);
  transform: translateY(0); transition: transform .4s ease;
}
.cookie-banner.hidden { transform: translateY(100%); }
.cookie-banner p { flex: 1; font-size: 13px; color: var(--text-muted); min-width: 200px; }
.cookie-banner p a { color: var(--primary); }
.cookie-actions { display: flex; gap: 10px; flex-shrink: 0; }

/* Disclaimer */
.disclaimer { background: var(--surface2); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 16px 18px; margin-top: 16px; }
.disclaimer p { font-size: 12px; color: var(--text-subtle); line-height: 1.6; }

/* Responsive */
@media (max-width: 900px) {
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .form-full { grid-column: 1; }
}
@media (max-width: 768px) {
  .nav-menu { display: none; }
  .hamburger { display: flex; }
  .tool-card { padding: 24px; }
  .steps::before { display: none; }
  .steps { gap: 28px; }
  .footer-inner { grid-template-columns: 1fr; }
  .article-wrap { padding: 28px 20px; }
  .analysis-box { grid-template-columns: 1fr 1fr; }
  .table-controls { flex-direction: column; align-items: stretch; }
  .search-filter input { width: 100%; }
}
@media (max-width: 480px) {
  .hero h1 { font-size: 28px; }
  .hero-stats { flex-direction: column; gap: 12px; }
  .action-bar { flex-direction: column; }
  .analysis-box { grid-template-columns: 1fr; }
  .results-header { flex-direction: column; align-items: flex-start; }
}

/* Trend badges */
.trend-rising  { color: #059669; font-weight: 700; }
.trend-stable  { color: #6B7280; font-weight: 600; }
.trend-declining { color: #DC2626; font-weight: 600; }

/* Progress / copy toast */
.toast {
  position: fixed; bottom: 80px; right: 24px; z-index: 3000;
  background: var(--text); color: var(--bg);
  padding: 10px 18px; border-radius: var(--radius-sm);
  font-size: 13.5px; font-weight: 600;
  transform: translateY(20px); opacity: 0;
  transition: all .3s ease; pointer-events: none;
}
.toast.show { transform: translateY(0); opacity: 1; }