:root {
  --bg: #0B0F1A;
  --surface: #111827;
  --surface2: #1A2235;
  --border: rgba(255,255,255,0.07);
  --border2: rgba(255,255,255,0.13);
  --accent: #22C55E;
  --accent2: #16A34A;
  --accent-glow: rgba(34,197,94,0.18);
  --gold: #F59E0B;
  --text: #F1F5F9;
  --muted: #94A3B8;
  --danger: #EF4444;
  --radius: 14px;
  --transition: 0.22s cubic-bezier(.4,0,.2,1);
}

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

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

.auth-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 100vh;
}

.left-panel {
  position: relative;
  background: var(--surface);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 60px 64px;
  overflow: hidden;
}

.left-panel::before {
  content: '';
  position: absolute;
  top: -120px; left: -120px;
  width: 480px; height: 480px;
  background: radial-gradient(circle, rgba(34,197,94,0.12) 0%, transparent 70%);
  pointer-events: none;
}

.left-panel::after {
  content: '';
  position: absolute;
  bottom: -80px; right: -80px;
  width: 360px; height: 360px;
  background: radial-gradient(circle, rgba(245,158,11,0.08) 0%, transparent 70%);
  pointer-events: none;
}

.grid-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
}

.brand {
  position: relative;
  margin-bottom: 56px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 6px;
}

.logo-icon {
  width: 38px; height: 38px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  box-shadow: 0 0 20px var(--accent-glow);
}

.brand-name {
  font-family: 'DM Serif Display', serif;
  font-size: 22px;
  letter-spacing: -0.3px;
  color: var(--text);
}

.brand-name span { color: var(--accent); }

.tagline {
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 1.5px;
  text-transform: uppercase;
}

.hero-heading {
  position: relative;
  font-family: 'DM Serif Display', serif;
  font-size: 42px;
  line-height: 1.15;
  letter-spacing: -1px;
  color: var(--text);
  margin-bottom: 20px;
}

.hero-heading em {
  font-style: italic;
  color: var(--accent);
}

.hero-sub {
  font-size: 15px;
  color: var(--muted);
  line-height: 1.7;
  max-width: 380px;
  margin-bottom: 48px;
  font-weight: 300;
}

.stats-row {
  position: relative;
  display: flex;
  gap: 24px;
}

.stat-card {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 22px;
  flex: 1;
  transition: var(--transition);
}

.stat-card:hover {
  border-color: var(--border2);
  transform: translateY(-2px);
}

.stat-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--muted);
  margin-bottom: 8px;
}

.stat-value {
  font-family: 'DM Serif Display', serif;
  font-size: 24px;
  color: var(--text);
}

.stat-value.up { color: var(--accent); }
.stat-value.gold { color: var(--gold); }

.stat-badge {
  display: inline-block;
  margin-top: 4px;
  font-size: 10px;
  padding: 2px 7px;
  border-radius: 20px;
  background: rgba(34,197,94,0.12);
  color: var(--accent);
  font-weight: 500;
}

.mini-chart {
  position: relative;
  margin-top: 40px;
  height: 72px;
  opacity: 0.6;
}

.mini-chart svg { width: 100%; height: 100%; }

.right-panel {
  background: var(--bg);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 48px 48px;
  position: relative;
}

.right-panel::before {
  content: '';
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(34,197,94,0.04) 0%, transparent 70%);
  pointer-events: none;
}

.form-container {
  width: 100%;
  max-width: 420px;
  position: relative;
  animation: fadeUp 0.5s ease both;
  margin-top: 24px;
}

.auth-tabs {
  display: flex;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 4px;
  margin-bottom: 36px;
}

.tab-btn {
  flex: 1;
  padding: 10px;
  border: none;
  background: transparent;
  color: var(--muted);
  font-family: 'DM Sans', sans-serif;
  font-size: 14px;
  font-weight: 500;
  border-radius: 9px;
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
  text-decoration: none;
}

.tab-btn.active {
  background: var(--surface2);
  color: var(--text);
  box-shadow: 0 2px 8px rgba(0,0,0,0.3);
}

.form-title {
  font-family: 'DM Serif Display', serif;
  font-size: 28px;
  letter-spacing: -0.5px;
  margin-bottom: 6px;
}

.form-subtitle {
  font-size: 14px;
  color: var(--muted);
  margin-bottom: 32px;
  font-weight: 300;
}

.field {
  margin-bottom: 18px;
}

.field label {
  display: block;
  font-size: 12px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--muted);
  margin-bottom: 8px;
}

.input-wrap {
  position: relative;
}

.input-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--muted);
  font-size: 15px;
  pointer-events: none;
  transition: var(--transition);
}

.field input,
.field select {
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 14px 12px 42px;
  color: var(--text);
  font-family: 'DM Sans', sans-serif;
  font-size: 14px;
  outline: none;
  transition: var(--transition);
}

.field input::placeholder { color: #475569; }

.field input:focus,
.field select:focus {
  border-color: var(--accent);
  background: var(--surface2);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.options-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
  font-size: 13px;
}

.checkbox-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  color: var(--muted);
}

.checkbox-wrap input[type="checkbox"] {
  width: 16px; height: 16px;
  accent-color: var(--accent);
  cursor: pointer;
}

.forgot-link {
  color: var(--accent);
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition);
}

.forgot-link:hover { color: #4ADE80; }

.btn-primary {
  width: 100%;
  padding: 13px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  border: none;
  border-radius: 10px;
  color: #fff;
  font-family: 'DM Sans', sans-serif;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  box-shadow: 0 4px 20px var(--accent-glow);
  letter-spacing: 0.2px;
}

.btn-primary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.08), transparent);
  transition: var(--transition);
  opacity: 0;
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 28px rgba(34,197,94,0.35);
}

.btn-primary:hover::before { opacity: 1; }
.btn-primary:active { transform: translateY(0); }

.terms-text {
  font-size: 12px;
  color: var(--muted);
  text-align: center;
  margin-top: 18px;
  line-height: 1.6;
}

.terms-text a {
  color: var(--accent);
  text-decoration: none;
}

.notify-pill {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background: rgba(34,197,94,0.1);
  border: 1px solid rgba(34,197,94,0.2);
  border-radius: 100px;
  padding: 6px 14px;
  font-size: 12px;
  color: var(--accent);
  margin-bottom: 24px;
  font-weight: 500;
}

.notify-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent);
  animation: pulse 2s infinite;
}

.module-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 32px;
  position: relative;
}

.module-tag {
  font-size: 11px;
  padding: 5px 12px;
  border-radius: 100px;
  border: 1px solid var(--border);
  color: var(--muted);
  background: rgba(255,255,255,0.02);
  font-weight: 400;
  letter-spacing: 0.3px;
}

.module-tag.highlight {
  border-color: rgba(34,197,94,0.3);
  color: var(--accent);
  background: rgba(34,197,94,0.07);
}

.strength-bar {
  margin-top: 8px;
  display: flex;
  gap: 4px;
}

.strength-seg {
  height: 3px;
  flex: 1;
  border-radius: 2px;
  background: var(--border);
  transition: var(--transition);
}

.strength-seg.filled { background: var(--accent); }
.strength-seg.medium { background: var(--gold); }
.strength-seg.weak { background: var(--danger); }

.strength-label {
  font-size: 11px;
  color: var(--muted);
  margin-top: 5px;
}

.alert-list {
  list-style: none;
  margin-bottom: 18px;
}

.alert-list li {
  background: rgba(239, 68, 68, 0.08);
  border: 1px solid rgba(239, 68, 68, 0.2);
  color: #fca5a5;
  padding: 10px 12px;
  border-radius: 10px;
  font-size: 13px;
  margin-bottom: 8px;
}

.field-error {
  display: block;
  margin-top: 6px;
  color: #fca5a5;
  font-size: 12px;
}

.help-text {
  font-size: 11px;
  color: var(--muted);
  margin-top: 5px;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

@media (max-width: 900px) {
  .auth-wrapper { grid-template-columns: 1fr; }
  .left-panel { display: none; }
  .right-panel { padding: 40px 24px; }
}