/* ─────────────────────────────────────────────────────────────────────────────
   AI Detector Pro — Master Stylesheet
   ───────────────────────────────────────────────────────────────────────────── */

@import url('https://fonts.googleapis.com/css2?family=Sora:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

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

:root {
  --font-main: 'Sora', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Palette */
  --clr-bg:          #1D337F;
  --clr-surface:     #ffffff;
  --clr-surface-2:   #C6D4EE;
  --clr-surface-3:   #222739;
  --clr-border:      rgba(255,255,255,0.07);
  --clr-border-2:    rgba(255,255,255,0.12);

  --clr-accent:      #6366f1;
  --clr-accent-2:    #818cf8;
  --clr-accent-glow: rgba(99,102,241,0.25);
  --clr-accent-pale: rgba(99,102,241,0.1);

  --clr-danger:      #ef4444;
  --clr-danger-pale: rgba(239,68,68,0.1);
  --clr-warning:     #f59e0b;
  --clr-warning-pale:rgba(245,158,11,0.1);
  --clr-success:     #10b981;
  --clr-success-pale:rgba(16,185,129,0.1);
  --clr-info:        #3b82f6;
  --clr-info-pale:   rgba(59,130,246,0.1);

  --clr-text:        #1D337F;
  --clr-text-2:      #901D78;
  --clr-text-3:      #5c6070;

  /* Highlight colors */
  --highlight-high-bg:    rgba(239,68,68,0.18);
  --highlight-high-line:  #ef4444;
  --highlight-med-bg:     rgba(245,158,11,0.15);
  --highlight-med-line:   #f59e0b;
  --highlight-low-bg:     transparent;

  --radius-sm: 6px;
  --radius:    10px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  --shadow-sm: 0 1px 3px rgba(0,0,0,0.4);
  --shadow:    0 4px 20px rgba(0,0,0,0.5);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.6);

  --sidebar-w: 240px;
  --header-h:  64px;
  --trans:     0.15s ease;
}

html { font-size: 16px; scroll-behavior: smooth; }

body {
  font-family: var(--font-main);
  background: var(--clr-bg);
  color: var(--clr-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--clr-accent-2); text-decoration: none; }
a:hover { color: var(--clr-text); }

img { max-width: 100%; }

/* ── Typography ────────────────────────────────────────────────────────────── */
h1,h2,h3,h4,h5,h6 { font-weight: 600; line-height: 1.3; color: var(--clr-text); }
h1 { font-size: 1.75rem; }
h2 { font-size: 1.375rem; }
h3 { font-size: 1.1rem; }
p { color: var(--clr-text-2); }

/* ── Layout — Sidebar + Main ───────────────────────────────────────────────── */
.app-layout {
  display: flex;
  min-height: 100vh;
}

/* ── Sidebar ───────────────────────────────────────────────────────────────── */
.sidebar {
  width: var(--sidebar-w);
  min-height: 100vh;
  background: var(--clr-surface);
  border-right: 1px solid var(--clr-border);
  display: flex;
  flex-direction: column;
  position: fixed;
  left: 0; top: 0;
  z-index: 100;
  transition: transform var(--trans);
}

.sidebar-logo {
  padding: 20px 20px 16px;
  border-bottom: 1px solid var(--clr-border);
  display: flex;
  align-items: center;
  gap: 10px;
}

.sidebar-logo .logo-icon {
  width: 36px; height: 36px;
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  background: transparent;
}

.auth-logo .logo-icon {
  width: 40px; height: 40px;
  border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  background: transparent;
}

.sidebar-logo .logo-text {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--clr-text);
  letter-spacing: -0.02em;
}
.sidebar-logo .logo-text span {
  display: block;
  font-size: 0.68rem;
  font-weight: 400;
  color: var(--clr-text-3);
  letter-spacing: 0;
}

.sidebar-nav {
  padding: 12px 10px;
  flex: 1;
}

.nav-section-label {
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--clr-text-3);
  padding: 10px 10px 4px;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border-radius: var(--radius-sm);
  color: var(--clr-text-2);
  font-size: 0.85rem;
  font-weight: 500;
  transition: all var(--trans);
  margin-bottom: 2px;
}
.nav-link svg { width: 17px; height: 17px; flex-shrink: 0; opacity: 0.7; }
.nav-link:hover { background: var(--clr-surface-2); color: var(--clr-text); }
.nav-link:hover svg { opacity: 1; }
.nav-link.active {
  background: var(--clr-accent-pale);
  color: var(--clr-accent-2);
  border: 1px solid rgba(99,102,241,0.2);
}
.nav-link.active svg { opacity: 1; color: var(--clr-accent-2); }

.sidebar-footer {
  padding: 12px;
  border-top: 1px solid var(--clr-border);
}
.sidebar-user {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border-radius: var(--radius);
  background: var(--clr-surface-2);
}
.sidebar-user .avatar {
  width: 32px; height: 32px;
  border-radius: 50%;
  background: var(--clr-accent-pale);
  border: 1px solid rgba(99,102,241,0.3);
  display: flex; align-items: center; justify-content: center;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--clr-accent-2);
  flex-shrink: 0;
}
.sidebar-user .user-info { flex: 1; min-width: 0; }
.sidebar-user .user-info .name {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--clr-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.sidebar-user .user-info .role {
  font-size: 0.68rem;
  color: var(--clr-text-3);
}

/* ── Main Content ──────────────────────────────────────────────────────────── */
.main-content {
  flex: 1;
  margin-left: var(--sidebar-w);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.topbar {
  height: var(--header-h);
  background: var(--clr-surface);
  border-bottom: 1px solid var(--clr-border);
  display: flex;
  align-items: center;
  padding: 0 28px;
  gap: 16px;
  position: sticky;
  top: 0;
  z-index: 50;
}

.topbar-title {
  flex: 1;
  font-size: 1rem;
  font-weight: 600;
  color: var(--clr-text);
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.credits-badge {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  background: var(--clr-accent-pale);
  border: 1px solid rgba(99,102,241,0.25);
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--clr-accent-2);
}
.credits-badge svg { width: 14px; height: 14px; }

.page-body {
  padding: 28px;
  flex: 1;
}

/* ── Cards ─────────────────────────────────────────────────────────────────── */
.card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: 24px;
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--clr-border);
}

.card-header h2, .card-header h3 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--clr-text);
}

/* ── Stat Cards ────────────────────────────────────────────────────────────── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.stat-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: 20px;
  transition: border-color var(--trans);
}
.stat-card:hover { border-color: var(--clr-border-2); }

.stat-card .stat-icon {
  width: 40px; height: 40px;
  border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 12px;
}
.stat-card .stat-icon svg { width: 20px; height: 20px; }
.stat-icon-purple { background: var(--clr-accent-pale); color: var(--clr-accent-2); }
.stat-icon-green  { background: var(--clr-success-pale); color: var(--clr-success); }
.stat-icon-amber  { background: var(--clr-warning-pale); color: var(--clr-warning); }
.stat-icon-blue   { background: var(--clr-info-pale); color: var(--clr-info); }
.stat-icon-red    { background: var(--clr-danger-pale); color: var(--clr-danger); }

.stat-card .stat-label {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--clr-text-3);
  margin-bottom: 4px;
}
.stat-card .stat-value {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--clr-text);
  line-height: 1;
}
.stat-card .stat-sub {
  font-size: 0.75rem;
  color: var(--clr-text-3);
  margin-top: 6px;
}

/* ── Buttons ───────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 9px 18px;
  border-radius: var(--radius);
  font-family: var(--font-main);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all var(--trans);
  text-decoration: none;
  white-space: nowrap;
}
.btn svg { width: 15px; height: 15px; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-primary {
  background: var(--clr-accent);
  color: #fff;
  border-color: var(--clr-accent);
}
.btn-primary:hover:not(:disabled) { background: #4f51d9; border-color: #4f51d9; }

.btn-outline {
  background: transparent;
  color: var(--clr-text-2);
  border-color: var(--clr-border-2);
}
.btn-outline:hover:not(:disabled) { background: var(--clr-surface-2); color: var(--clr-text); }

.btn-danger {
  background: var(--clr-danger);
  color: #fff;
  border-color: var(--clr-danger);
}
.btn-danger:hover:not(:disabled) { background: #dc2626; }

.btn-success {
  background: var(--clr-success);
  color: #fff;
}
.btn-success:hover:not(:disabled) { background: #059669; }

.btn-sm { padding: 6px 13px; font-size: 0.78rem; }
.btn-lg { padding: 12px 24px; font-size: 0.95rem; }
.btn-full { width: 100%; justify-content: center; }
.btn-loading { position: relative; pointer-events: none; }
.btn-loading::after {
  content: '';
  width: 14px; height: 14px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  position: absolute;
  right: 12px;
}

/* ── Forms ─────────────────────────────────────────────────────────────────── */
.form-group { margin-bottom: 18px; }
.form-label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--clr-text-2);
  margin-bottom: 7px;
}
.form-label span { color: var(--clr-danger); margin-left: 2px; }

.form-control {
  display: block;
  width: 100%;
  padding: 10px 14px;
  background: var(--clr-surface-2);
  border: 1px solid var(--clr-border-2);
  border-radius: var(--radius);
  color: var(--clr-text);
  font-family: var(--font-main);
  font-size: 0.875rem;
  transition: border-color var(--trans), box-shadow var(--trans);
  outline: none;
}
.form-control::placeholder { color: var(--clr-text-3); }
.form-control:focus {
  border-color: var(--clr-accent);
  box-shadow: 0 0 0 3px var(--clr-accent-glow);
}
textarea.form-control {
  resize: vertical;
  min-height: 160px;
  line-height: 1.6;
  font-size: 0.85rem;
}

.form-hint { font-size: 0.75rem; color: var(--clr-text-3); margin-top: 5px; }
.form-error { font-size: 0.75rem; color: var(--clr-danger); margin-top: 5px; }

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

/* ── Alerts ────────────────────────────────────────────────────────────────── */
.alert {
  padding: 13px 16px;
  border-radius: var(--radius);
  font-size: 0.85rem;
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 20px;
}
.alert-success { background: var(--clr-success-pale); border: 1px solid rgba(16,185,129,0.25); color: #34d399; }
.alert-danger   { background: var(--clr-danger-pale);  border: 1px solid rgba(239,68,68,0.25);  color: #f87171; }
.alert-warning  { background: var(--clr-warning-pale); border: 1px solid rgba(245,158,11,0.25); color: #fbbf24; }
.alert-info     { background: var(--clr-info-pale);    border: 1px solid rgba(59,130,246,0.25); color: #60a5fa; }

/* ── Tables ────────────────────────────────────────────────────────────────── */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 0.85rem; }
thead th {
  padding: 10px 14px;
  text-align: left;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--clr-text-3);
  border-bottom: 1px solid var(--clr-border);
}
tbody tr { border-bottom: 1px solid var(--clr-border); transition: background var(--trans); }
tbody tr:hover { background: var(--clr-surface-2); }
tbody tr:last-child { border-bottom: none; }
td { padding: 12px 14px; color: var(--clr-text-2); vertical-align: middle; }
td a { color: var(--clr-accent-2); }
td a:hover { color: var(--clr-text); }

/* ── Badges ────────────────────────────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 9px;
  border-radius: 20px;
  font-size: 0.7rem;
  font-weight: 600;
}
.badge-danger   { background: var(--clr-danger-pale);  color: #f87171; }
.badge-warning  { background: var(--clr-warning-pale); color: #fbbf24; }
.badge-success  { background: var(--clr-success-pale); color: #34d399; }
.badge-info     { background: var(--clr-info-pale);    color: #60a5fa; }
.badge-secondary{ background: rgba(255,255,255,0.06);  color: var(--clr-text-3); }
.badge-primary  { background: var(--clr-accent-pale);  color: var(--clr-accent-2); }

/* ── Score / Progress ──────────────────────────────────────────────────────── */
.score-ring {
  width: 120px; height: 120px;
  position: relative;
  flex-shrink: 0;
}
.score-ring svg { transform: rotate(-90deg); }
.score-ring .score-text {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}
.score-ring .score-number {
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1;
}
.score-ring .score-label {
  font-size: 0.6rem;
  color: var(--clr-text-3);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.progress-bar {
  height: 6px;
  background: var(--clr-surface-3);
  border-radius: 3px;
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  border-radius: 3px;
  transition: width 0.6s ease;
}
.progress-fill-danger  { background: var(--clr-danger); }
.progress-fill-warning { background: var(--clr-warning); }
.progress-fill-success { background: var(--clr-success); }
.progress-fill-accent  { background: var(--clr-accent); }

/* ── Highlighted text ──────────────────────────────────────────────────────── */
.highlighted-text {
  line-height: 2;
  font-size: 0.9rem;
  color: var(--clr-text);
}
mark.highlight-high {
  background: var(--highlight-high-bg);
  border-bottom: 2px solid var(--highlight-high-line);
  border-radius: 2px;
  color: inherit;
  padding: 1px 0;
  cursor: default;
}
mark.highlight-medium {
  background: var(--highlight-med-bg);
  border-bottom: 2px solid var(--highlight-med-line);
  border-radius: 2px;
  color: inherit;
  padding: 1px 0;
  cursor: default;
}
span.highlight-low { cursor: default; }

/* ── Pricing cards ─────────────────────────────────────────────────────────── */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}

.pricing-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: border-color var(--trans), transform var(--trans);
  position: relative;
}
.pricing-card:hover { border-color: var(--clr-border-2); transform: translateY(-2px); }
.pricing-card.popular {
  border-color: var(--clr-accent);
  background: linear-gradient(180deg, rgba(99,102,241,0.06) 0%, var(--clr-surface) 100%);
}

.pricing-popular-tag {
  position: absolute;
  top: -1px; left: 50%; transform: translateX(-50%);
  background: var(--clr-accent);
  color: #fff;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 3px 12px;
  border-radius: 0 0 8px 8px;
}

.pricing-card .plan-name { font-size: 0.9rem; font-weight: 700; color: var(--clr-text); }
.pricing-card .plan-price {
  font-size: 2rem;
  font-weight: 700;
  color: var(--clr-text);
  line-height: 1;
}
.pricing-card .plan-price span { font-size: 0.85rem; font-weight: 400; color: var(--clr-text-3); }
.pricing-card .plan-words {
  font-size: 0.8rem;
  color: var(--clr-text-2);
  display: flex;
  align-items: center;
  gap: 6px;
}
.pricing-card .plan-words strong { color: var(--clr-accent-2); }

/* ── Auth pages ────────────────────────────────────────────────────────────── */
.auth-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: var(--clr-bg);
  position: relative;
  overflow: hidden;
}
.auth-page::before {
  content: '';
  position: absolute;
  top: -40%;
  left: -20%;
  width: 700px; height: 700px;
  background: radial-gradient(circle, rgba(99,102,241,0.08) 0%, transparent 70%);
  pointer-events: none;
}

.auth-card {
  width: 100%;
  max-width: 420px;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-xl);
  padding: 40px;
  position: relative;
  z-index: 1;
}

.auth-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 28px;
}
.auth-logo .logo-icon {
  width: 40px; height: 40px;
  border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  background: transparent;
}
.auth-logo .logo-icon svg { width: 22px; height: 22px; color: #fff; }
.auth-logo span { font-size: 1.1rem; font-weight: 700; }

.auth-divider {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 20px 0;
  color: var(--clr-text-3);
  font-size: 0.75rem;
}
.auth-divider::before, .auth-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--clr-border);
}

/* ── Word counter / analyzer ───────────────────────────────────────────────── */
.word-counter-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  background: var(--clr-surface-2);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius);
  margin-top: 8px;
  font-size: 0.8rem;
  color: var(--clr-text-2);
}
.word-counter-bar .count { font-weight: 600; }
.word-counter-bar .count.over-limit { color: var(--clr-danger); }

.analysis-result {
  display: none;
}
.analysis-result.visible {
  display: block;
}

.result-header {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 24px;
  background: var(--clr-surface-2);
  border-radius: var(--radius-lg);
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.verdict-label {
  font-size: 1.1rem;
  font-weight: 700;
}

.highlight-legend {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 0.75rem;
  color: var(--clr-text-2);
}
.legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
}
.legend-dot {
  width: 10px; height: 10px;
  border-radius: 2px;
}

/* ── Pagination ────────────────────────────────────────────────────────────── */
.pagination {
  display: flex;
  gap: 4px;
  align-items: center;
  justify-content: center;
  margin-top: 20px;
}
.pagination a, .pagination span {
  display: flex; align-items: center; justify-content: center;
  width: 34px; height: 34px;
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  font-weight: 500;
  border: 1px solid var(--clr-border);
  color: var(--clr-text-2);
  transition: all var(--trans);
}
.pagination a:hover { background: var(--clr-surface-2); color: var(--clr-text); }
.pagination span.active {
  background: var(--clr-accent);
  color: #fff;
  border-color: var(--clr-accent);
}

/* ── Modal ─────────────────────────────────────────────────────────────────── */
.modal-backdrop {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.7);
  z-index: 200;
  display: flex; align-items: center; justify-content: center;
  padding: 24px;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--trans);
}
.modal-backdrop.open {
  opacity: 1;
  pointer-events: auto;
}
.modal {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border-2);
  border-radius: var(--radius-xl);
  padding: 28px;
  width: 100%;
  max-width: 480px;
  transform: scale(0.96) translateY(8px);
  transition: transform var(--trans);
}
.modal-backdrop.open .modal { transform: scale(1) translateY(0); }
.modal-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 20px;
}
.modal-close {
  background: none; border: none; cursor: pointer;
  color: var(--clr-text-3); width: 28px; height: 28px;
  display: flex; align-items: center; justify-content: center;
  border-radius: var(--radius-sm);
  transition: color var(--trans);
}
.modal-close:hover { color: var(--clr-text); }

/* ── Admin-specific ────────────────────────────────────────────────────────── */
.admin-header-badge {
  padding: 2px 8px;
  background: var(--clr-danger-pale);
  color: #f87171;
  border-radius: 4px;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-left: 8px;
}

/* ── Utility classes ───────────────────────────────────────────────────────── */
.flex      { display: flex; }
.flex-col  { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.gap-4 { gap: 16px; }
.mt-1 { margin-top: 4px; }
.mt-2 { margin-top: 8px; }
.mt-3 { margin-top: 12px; }
.mt-4 { margin-top: 16px; }
.mb-4 { margin-bottom: 16px; }
.mb-6 { margin-bottom: 24px; }
.text-sm { font-size: 0.82rem; }
.text-muted { color: var(--clr-text-3); }
.text-danger { color: var(--clr-danger); }
.text-success { color: var(--clr-success); }
.text-accent { color: var(--clr-accent-2); }
.font-mono { font-family: var(--font-mono); }
.truncate { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.hidden { display: none; }

/* ── Animations ────────────────────────────────────────────────────────────── */
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes fadeIn { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

.fade-in { animation: fadeIn 0.25s ease forwards; }

/* ── Responsive ────────────────────────────────────────────────────────────── */
.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--clr-text);
  padding: 4px;
}

@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
  }
  .sidebar.open {
    transform: translateX(0);
    box-shadow: var(--shadow-lg);
  }
  .main-content { margin-left: 0; }
  .mobile-menu-btn { display: flex; }
  .page-body { padding: 16px; }
  .form-row { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .result-header { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr; }
  .pricing-grid { grid-template-columns: 1fr; }
  .auth-card { padding: 24px 20px; }
}