/* ===== Reset & Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #0b0d17;
  --bg2: #111527;
  --bg3: #181d35;
  --card: #141929;
  --border: #1f2640;
  --text: #e0e4f0;
  --text2: #9498b0;
  --accent: #5b7cfa;
  --accent2: #3b5de7;
  --red: #ff4757;
  --green: #2ed573;
  --blue: #5b7cfa;
  --purple: #a855f7;
  --orange: #ff9f43;
  --pink: #ff6b81;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'Fira Code', monospace;
}

html { font-size: 15px; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}
a { color: var(--accent); text-decoration: none; }
a:hover { color: #8aa4ff; }
code { font-family: var(--font-mono); background: var(--bg3); padding: 2px 6px; border-radius: 4px; font-size: 0.9em; }

/* ===== App Container ===== */
.app-container { max-width: 1400px; margin: 0 auto; padding: 0 20px; }

/* ===== Navbar ===== */
.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0;
  border-bottom: 1px solid var(--border);
  margin-bottom: 30px;
}
.nav-brand {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 10px;
}
.nav-brand i { color: var(--accent); }
.nav-badge {
  font-size: 0.65rem;
  background: var(--accent);
  color: #fff;
  padding: 2px 8px;
  border-radius: 20px;
  vertical-align: middle;
  font-weight: 600;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 20px;
}
.nav-links a {
  color: var(--text2);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.2s;
  display: flex;
  align-items: center;
  gap: 6px;
}
.nav-links a:hover { color: var(--text); }
.nav-user {
  color: var(--text2);
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  background: var(--bg3);
  border-radius: 20px;
}
.btn-logout {
  color: var(--red) !important;
}
.btn-logout:hover { opacity: 0.8; }

/* ===== Auth ===== */
.auth-container {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 20px;
}
.auth-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 40px;
  width: 100%;
  max-width: 420px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.4);
}
.auth-header {
  text-align: center;
  margin-bottom: 30px;
}
.auth-icon {
  font-size: 2.5rem;
  color: var(--accent);
  margin-bottom: 10px;
}
.auth-header h1 { font-size: 1.8rem; font-weight: 700; }
.auth-header p { color: var(--text2); margin-top: 5px; font-size: 0.9rem; }
.auth-form { display: flex; flex-direction: column; gap: 16px; }
.auth-footer { text-align: center; margin-top: 20px; color: var(--text2); font-size: 0.85rem; }

/* ===== Forms ===== */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.form-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text2);
  display: flex;
  align-items: center;
  gap: 6px;
}
.form-group input, .form-group select, .form-group textarea {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 14px;
  color: var(--text);
  font-size: 0.9rem;
  font-family: var(--font);
  outline: none;
  transition: border 0.2s;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  border-color: var(--accent);
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border: none;
  border-radius: 8px;
  font-family: var(--font);
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  transition: all 0.2s;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent2); }
.btn-success { background: var(--green); color: #fff; }
.btn-warning { background: var(--orange); color: #000; }
.btn-danger { background: var(--red); color: #fff; }
.btn-info { background: var(--blue); color: #fff; }
.btn-sm { padding: 6px 12px; font-size: 0.8rem; }
.btn-full { width: 100%; padding: 14px; }

/* ===== Alerts ===== */
.alert {
  padding: 12px 16px;
  border-radius: 8px;
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  gap: 10px;
}
.alert-error { background: rgba(255,71,87,0.15); border: 1px solid rgba(255,71,87,0.3); color: var(--red); }
.alert-success { background: rgba(46,213,115,0.15); border: 1px solid rgba(46,213,115,0.3); color: var(--green); }

/* ===== Dashboard ===== */
.dashboard { padding: 10px 0 40px; }
.page-header { margin-bottom: 25px; }
.page-header h1 { font-size: 1.6rem; font-weight: 700; display: flex; align-items: center; gap: 10px; }
.page-header p { color: var(--text2); margin-top: 4px; font-size: 0.9rem; }

/* ===== Stats ===== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 30px;
}
.stat-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 16px;
}
.stat-icon { font-size: 2rem; }
.stat-icon.blue { color: var(--blue); }
.stat-icon.green { color: var(--green); }
.stat-icon.purple { color: var(--purple); }
.stat-info { display: flex; flex-direction: column; }
.stat-number { font-size: 1.8rem; font-weight: 700; }
.stat-label { font-size: 0.8rem; color: var(--text2); }

/* ===== Cards ===== */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  margin-bottom: 20px;
}
.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
}
.card-header h2 { font-size: 1.1rem; font-weight: 600; display: flex; align-items: center; gap: 8px; }
.card-body { padding: 20px; }

/* ===== Admin Grid ===== */
.admin-grid { display: flex; flex-direction: column; gap: 20px; }

/* ===== Tables ===== */
.table-wrap { overflow-x: auto; }
.data-table { width: 100%; border-collapse: collapse; font-size: 0.85rem; }
.data-table th {
  text-align: left;
  padding: 10px 14px;
  font-weight: 600;
  color: var(--text2);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-bottom: 1px solid var(--border);
}
.data-table td { padding: 10px 14px; border-bottom: 1px solid rgba(31,38,64,0.5); }
.data-table tr:hover td { background: rgba(91,124,250,0.03); }
.actions { display: flex; gap: 6px; }
.text-muted { color: var(--text2); }
.text-center { text-align: center; }

/* ===== Badges ===== */
.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  background: var(--bg3);
  color: var(--text2);
}
.badge-admin { background: rgba(168,85,247,0.2); color: var(--purple); }
.badge-user { background: rgba(91,124,250,0.2); color: var(--accent); }
.badge-dns { background: rgba(46,213,115,0.15); color: var(--green); }

/* ===== Status ===== */
.status { font-size: 0.8rem; display: flex; align-items: center; gap: 6px; }
.status.active i { color: var(--green); font-size: 0.6rem; }
.status.inactive i { color: var(--red); font-size: 0.6rem; }

/* ===== Tool Grid ===== */
.tool-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 20px;
}
.tool-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  transition: all 0.3s;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.tool-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(91,124,250,0.1);
}
.tool-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
}
.tool-icon.red { background: rgba(255,71,87,0.15); color: var(--red); }
.tool-icon.blue { background: rgba(91,124,250,0.15); color: var(--blue); }
.tool-icon.green { background: rgba(46,213,115,0.15); color: var(--green); }
.tool-icon.purple { background: rgba(168,85,247,0.15); color: var(--purple); }
.tool-icon.orange { background: rgba(255,159,67,0.15); color: var(--orange); }
.tool-icon.pink { background: rgba(255,107,129,0.15); color: var(--pink); }
.tool-card h3 { font-size: 1.1rem; font-weight: 600; }
.tool-card p { color: var(--text2); font-size: 0.85rem; line-height: 1.5; }
.tool-badge {
  font-size: 0.75rem;
  background: var(--bg3);
  padding: 4px 12px;
  border-radius: 20px;
  display: inline-block;
  width: fit-content;
}

/* Horizontal tool grid for dashboard */
.tool-grid-h {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
}
.tool-card-h {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  transition: all 0.3s;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}
.tool-card-h:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}
.tool-card-h h3 { font-size: 0.95rem; font-weight: 600; color: var(--text); }
.tool-card-h p { font-size: 0.78rem; color: var(--text2); }

/* ===== Search Box ===== */
.tool-container { max-width: 900px; }
.search-box { margin-bottom: 25px; }
.search-input-wrap {
  display: flex;
  align-items: center;
  gap: 0;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  transition: border 0.2s;
}
.search-input-wrap:focus-within { border-color: var(--accent); }
.search-icon { padding: 0 16px; color: var(--text2); font-size: 1rem; }
.search-input-wrap input {
  flex: 1;
  background: transparent;
  border: none;
  padding: 14px 0;
  color: var(--text);
  font-size: 1rem;
  font-family: var(--font);
  outline: none;
}
.search-input-wrap button { border-radius: 0; padding: 14px 24px; }

/* ===== Results ===== */
.result-header { margin-bottom: 16px; }
.result-summary {
  background: var(--bg3);
  padding: 10px 16px;
  border-radius: 8px;
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  gap: 8px;
}
.result-section { margin-bottom: 16px; }

.result-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.result-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 10px 14px;
  background: var(--bg2);
  border-radius: 8px;
}
.result-item-type {
  font-weight: 600;
  font-size: 0.8rem;
  color: var(--accent);
  min-width: 100px;
}
.result-item-value { font-size: 0.9rem; word-break: break-all; }
.result-item-details { font-size: 0.8rem; color: var(--text2); word-break: break-all; min-width: 200px; }

/* ===== Platform Grid ===== */
.platform-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 10px;
}
.platform-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 14px 10px;
  border-radius: 10px;
  border: 1px solid var(--border);
  text-align: center;
  transition: all 0.2s;
}
.platform-item.found { border-color: rgba(46,213,115,0.3); background: rgba(46,213,115,0.05); }
.platform-item.not-found { opacity: 0.5; }
.platform-item:hover.found { border-color: var(--green); }
.platform-status { font-size: 1.2rem; }
.found-icon { color: var(--green); }
.not-found-icon { color: var(--text2); }
.platform-name { font-size: 0.8rem; font-weight: 600; }
.platform-sub { font-size: 0.7rem; color: var(--text2); }

/* ===== Profile Card ===== */
.profile-card {
  display: flex;
  gap: 20px;
  align-items: flex-start;
}
.avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  border: 3px solid var(--border);
}
.profile-info h3 { font-size: 1.2rem; font-weight: 600; }
.profile-info .bio { color: var(--text2); margin: 4px 0 10px; font-size: 0.85rem; }
.profile-stats { display: flex; gap: 16px; font-size: 0.8rem; color: var(--text2); }
.profile-stats span { display: flex; align-items: center; gap: 4px; }

/* ===== Breach ===== */
.breach-item {
  padding: 14px;
  background: var(--bg2);
  border-radius: 8px;
  margin-bottom: 10px;
}
.breach-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
}
.breach-header i { color: var(--orange); }
.breach-domain, .breach-data { font-size: 0.82rem; color: var(--text2); margin: 4px 0; }
.breach-note { font-size: 0.8rem; color: var(--text2); margin-top: 6px; }
.success-msg {
  color: var(--green);
  font-size: 1rem;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 20px;
  text-align: center;
  justify-content: center;
}

/* ===== Recommendations ===== */
.recommendations { list-style: none; }
.recommendations li {
  padding: 8px 0;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  border-bottom: 1px solid rgba(31,38,64,0.5);
}
.recommendations li:last-child { border-bottom: none; }
.recommendations li i { color: var(--green); }

/* ===== Empty State ===== */
.empty-state {
  text-align: center;
  padding: 40px 20px;
}
.empty-icon { font-size: 3rem; color: var(--text2); margin-bottom: 16px; }
.empty-state h3 { margin-bottom: 8px; }
.empty-state p { color: var(--text2); margin-bottom: 20px; }

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .navbar { flex-direction: column; gap: 12px; }
  .nav-links { flex-wrap: wrap; justify-content: center; gap: 12px; }
  .tool-grid { grid-template-columns: 1fr; }
  .tool-grid-h { grid-template-columns: repeat(2, 1fr); }
  .profile-card { flex-direction: column; align-items: center; text-align: center; }
  .profile-stats { justify-content: center; flex-wrap: wrap; }
  .result-item { flex-direction: column; gap: 4px; }
  .search-input-wrap { flex-direction: column; }
  .search-input-wrap input { padding: 14px 16px; width: 100%; }
  .search-input-wrap button { width: 100%; border-radius: 0; }
  .search-icon { display: none; }
}

/* ===== User Detail / Manage Page ===== */
.info-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.info-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 12px 14px;
  background: var(--bg2);
  border-radius: 8px;
}
.info-item .info-label {
  font-size: 0.75rem;
  color: var(--text2);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 600;
}
.info-item .info-value {
  font-size: 0.95rem;
  font-weight: 600;
}
.timeout-options {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 8px 0;
}
.tool-check-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}
.tool-check {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.85rem;
  transition: all 0.2s;
  user-select: none;
}
.tool-check:hover {
  border-color: var(--accent);
}
.tool-check.checked {
  border-color: var(--red);
  background: rgba(255,71,87,0.08);
}
.tool-check input {
  display: none;
}
.tool-check i {
  color: var(--text2);
  width: 16px;
  text-align: center;
}
.tool-check.checked i {
  color: var(--red);
}
.tool-usage-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.usage-stat {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  background: var(--bg2);
  border-radius: 8px;
}
.usage-count {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text);
}

/* Restricted tool card */
.tool-card-restricted {
  cursor: not-allowed;
  opacity: 0.7;
  position: relative;
}
.tool-card-restricted:hover {
  transform: none !important;
  border-color: var(--red) !important;
}
.tool-restricted-badge {
  font-size: 0.65rem;
  background: rgba(255,71,87,0.2);
  color: var(--red);
  padding: 2px 8px;
  border-radius: 20px;
  font-weight: 600;
  vertical-align: middle;
}

/* ===== Settings Page ===== */
.settings-grid {
  display: flex;
  flex-direction: column;
  gap: 20px;
  max-width: 700px;
}
.settings-form .form-group {
  margin-bottom: 16px;
}
.settings-form .form-divider {
  height: 1px;
  background: var(--border);
  margin: 20px 0;
}
.settings-form .form-hint {
  font-size: 0.75rem;
  color: var(--text2);
  margin-top: 4px;
  opacity: 0.7;
}
.settings-form .settings-row.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.account-info {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.info-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  background: var(--bg2);
  border-radius: 8px;
}
.info-label {
  font-size: 0.85rem;
  color: var(--text2);
  min-width: 120px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.info-value {
  font-size: 0.95rem;
  font-weight: 600;
}
.tips-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.tips-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.85rem;
  color: var(--text2);
  padding: 8px 12px;
  background: var(--bg2);
  border-radius: 8px;
}
.tips-list li i { color: var(--green); }

/* ===== Profile Form ===== */
.profile-form {
  max-width: 500px;
}
.profile-form .form-row {
  margin-bottom: 16px;
}
.profile-form .form-row.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.profile-form .form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.profile-form label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text2);
  display: flex;
  align-items: center;
  gap: 6px;
}
.profile-form .form-control {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 14px;
  color: var(--text);
  font-size: 0.95rem;
  transition: border 0.2s;
}
.profile-form .form-control:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(91, 124, 250, 0.15);
}
.profile-form .form-control::placeholder {
  color: var(--text2);
  opacity: 0.6;
}
.profile-form button[type="submit"] {
  margin-top: 8px;
}

/* ========== Dashboard Stats ========== */
.dashboard-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 16px;
  margin-bottom: 30px;
}
.stat-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 14px;
  transition: transform 0.2s, box-shadow 0.2s;
  cursor: default;
}
.stat-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0,0,0,0.3);
}
.stat-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
}
.stat-icon.purple { background: rgba(155,89,182,0.15); color: #9b59b6; }
.stat-icon.green { background: rgba(46,204,113,0.15); color: #2ecc71; }
.stat-icon.orange { background: rgba(230,126,34,0.15); color: #e67e22; }
.stat-icon.blue { background: rgba(91,124,250,0.15); color: #5b7cfa; }
.stat-num { font-size: 26px; font-weight: 700; color: var(--text); }
.stat-label { font-size: 12px; color: var(--text2); text-transform: uppercase; letter-spacing: 0.5px; }

/* ========== Animations ========== */
.fade-in {
  animation: fadeInUp 0.4s ease-out;
}
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
.spinner {
  display: none;
  align-items: center;
  justify-content: center;
  gap: 14px;
  padding: 30px;
  color: var(--text2);
  font-size: 14px;
}
.spinner-ring {
  width: 32px;
  height: 32px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ========== Batch Items ========== */
.batch-item {
  transition: opacity 0.3s;
}

/* ========== Result Summary ========== */
.result-summary {
  background: rgba(91,124,250,0.08);
  border: 1px solid rgba(91,124,250,0.2);
  border-radius: 8px;
  padding: 12px 16px;
  font-size: 13px;
  color: var(--text2);
  margin-bottom: 16px;
}

/* ========== Redirect Chain ========== */
.redirect-chain { padding: 8px 0; }
.redirect-step { display: flex; align-items: flex-start; gap: 12px; }
.step-num {
  min-width: 32px;
  height: 32px;
  background: var(--accent);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 600;
  flex-shrink: 0;
}
.step-detail { flex: 1; }
.step-detail code {
  display: block;
  font-size: 12px;
  word-break: break-all;
  margin-bottom: 4px;
}
.status-code { display: inline-block; font-size: 11px; padding: 2px 8px; border-radius: 4px; }
.status-code.ok { background: rgba(46,204,113,0.15); color: #2ecc71; }
.status-code.error { background: rgba(255,71,87,0.15); color: #ff4757; }
.step-arrow { text-align: center; padding: 4px 0; color: var(--text2); font-size: 16px; margin-left: -44px; }
.final-url { margin-top: 16px; padding: 12px; background: rgba(46,204,113,0.08); border-radius: 8px; }
.final-url code { word-break: break-all; font-size: 13px; }

/* ========== Screenshot ========== */
.screenshot-img { max-width: 100%; border-radius: 8px; }

/* ========== Nav Hamburger ========== */
.nav-hamburger {
  display: none;
  cursor: pointer;
  padding: 8px 12px;
  color: var(--text);
  font-size: 20px;
}

/* ========== Responsive ========== */
@media (max-width: 900px) {
  .dashboard { padding: 16px; }
  .tool-grid { grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); }
  .tool-grid-h { grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); }
  .dashboard-stats { grid-template-columns: repeat(auto-fit, minmax(130px, 1fr)); }
  .nav-hamburger { display: block; }
  .navbar .nav-links {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    padding: 10px;
    z-index: 100;
  }
  .navbar.nav-open .nav-links { display: flex; }
  .navbar { position: relative; flex-wrap: wrap; }
  .nav-user { display: none; }
  .search-box { flex-direction: column; }
  .search-box .form-control { border-radius: 8px !important; }
  .search-box button { border-radius: 8px !important; margin-top: 8px; }
  .page-header h1 { font-size: 20px; }
  .page-header p { font-size: 13px; }
  .result-table { font-size: 12px; }
  .result-table th, .result-table td { padding: 8px 10px; }
  .card-body { padding: 16px; }
}

/* ===== Back Button ===== */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--text2);
  font-size: 13px;
  margin-bottom: 8px;
  transition: color 0.2s;
}
.back-link:hover {
  color: var(--accent);
}
.back-link i {
  font-size: 12px;
}

/* ===== Correlation Graph ===== */
.corr-graph-container {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  overflow: hidden;
  position: relative;
  min-height: 320px;
}
.corr-graph-container svg {
  width: 100%;
  height: 320px;
}
.corr-node circle {
  cursor: pointer;
  transition: r 0.2s, opacity 0.2s;
}
.corr-node:hover circle {
  opacity: 1 !important;
}
.corr-node text {
  font-family: var(--font);
  font-size: 11px;
  fill: var(--text);
  pointer-events: none;
}
.corr-link {
  stroke: var(--border);
  stroke-width: 1.5;
  stroke-dasharray: 4,3;
}
.corr-tooltip {
  display: none;
  position: absolute;
  background: var(--card);
  border: 1px solid var(--accent);
  border-radius: 8px;
  padding: 10px 14px;
  font-size: 12px;
  color: var(--text);
  max-width: 260px;
  z-index: 100;
  box-shadow: 0 4px 20px rgba(0,0,0,0.4);
  pointer-events: none;
}
.corr-node.active circle {
  stroke: var(--accent);
  stroke-width: 3;
}
.corr-node.active text {
  fill: var(--accent);
  font-weight: 600;
}
.corr-results-panel {
  margin-top: 16px;
}
.corr-result-item {
  padding: 12px 16px;
  background: var(--bg2);
  border-radius: 8px;
  margin-bottom: 8px;
  border-left: 3px solid var(--accent);
  cursor: pointer;
  transition: background 0.2s;
}
.corr-result-item:hover {
  background: var(--bg3);
}

/* ===== File Upload Button ===== */
.file-upload-btn {
  display: inline-flex;
  align-items: center;
  padding: 10px 20px;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s;
  color: var(--text);
  font-size: 14px;
}
.file-upload-btn:hover {
  border-color: var(--accent);
  background: var(--card);
}

/* ===== Result Table Enhanced ===== */
.result-table thead th {
  background: var(--bg3);
  padding: 10px 12px;
  text-align: left;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text2);
  border-bottom: 1px solid var(--border);
}
.result-table tbody td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
}
.result-table tbody tr:hover {
  background: rgba(91, 124, 250, 0.03);
}

@media (max-width: 480px) {
  .tool-grid { grid-template-columns: 1fr; }
  .tool-grid-h { grid-template-columns: 1fr 1fr; }
  .dashboard-stats { grid-template-columns: 1fr 1fr; }
  .redirect-step { flex-direction: column; }
  .step-arrow { margin-left: 0; }
  .correlation-graph { flex-direction: column; }
  .stat-card { padding: 14px; }
  .stat-num { font-size: 20px; }
}