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

body {
  font-family: var(--font-body);
  min-height: 100vh;
  display: flex;
  background: #0f0f0f;
}

/* ── LEFT HERO PANEL ── */
.hero-panel {
  flex: 1;
  background: linear-gradient(135deg, var(--sidebar-top) 0%, var(--sidebar-mid) 40%, var(--sidebar-bottom) 100%);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 60px 40px;
  position: relative;
  overflow: hidden;
}

.hero-panel::before {
  content: '';
  position: absolute;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(var(--brand-primary-rgb), 0.15) 0%, transparent 70%);
  top: -100px;
  left: -100px;
  border-radius: 50%;
}

.hero-panel::after {
  content: '';
  position: absolute;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(var(--brand-primary-rgb), 0.1) 0%, transparent 70%);
  bottom: -80px;
  right: -80px;
  border-radius: 50%;
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 420px;
}

.hero-logo {
  width: 100%;
  max-width: 260px;
  height: auto;
  margin-bottom: 40px;
  filter: drop-shadow(0 8px 24px rgba(0,0,0,0.4));
  border-radius: 12px;
}

.hero-tagline {
  font-size: 2rem;
  font-weight: 800;
  color: #ffffff;
  line-height: 1.2;
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}

.hero-tagline span {
  color: var(--brand-primary);
}

.hero-sub {
  font-size: 0.95rem;
  color: rgba(255,255,255,0.55);
  line-height: 1.7;
  margin-bottom: 48px;
}

.hero-stats {
  display: flex;
  gap: 32px;
  justify-content: center;
}

.stat-item {
  text-align: center;
}

.stat-number {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--brand-primary);
  display: block;
}

.stat-label {
  font-size: 0.75rem;
  color: rgba(255,255,255,0.45);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* ── RIGHT FORM PANEL ── */
.form-panel {
  width: 480px;
  min-height: 100vh;
  background: var(--bg-card);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 60px 48px;
}

.form-header {
  margin-bottom: 36px;
}

.form-header h1 {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--text-dark);
  margin-bottom: 8px;
}

.form-header p {
  font-size: 0.9rem;
  color: var(--text-muted);
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-medium);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.4px;
}

.input-wrapper {
  position: relative;
}

.input-wrapper .input-icon {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: #9ca3af;
  font-size: 0.9rem;
  pointer-events: none;
}

.input-wrapper .toggle-password {
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: #9ca3af;
  font-size: 0.9rem;
  cursor: pointer;
  background: none;
  border: none;
  padding: 0;
  transition: color 0.2s;
}

.input-wrapper .toggle-password:hover {
  color: var(--brand-primary);
}

.form-control {
  width: 100%;
  padding: 14px 16px 14px 44px;
  font-size: 0.9rem;
  font-family: var(--font-body);
  border: 1.5px solid var(--border-default);
  border-radius: 10px;
  background: var(--bg-input);
  color: var(--text-dark);
  transition: border-color 0.2s, box-shadow 0.2s, background 0.2s;
  outline: none;
}

.form-control:focus {
  border-color: var(--brand-primary);
  background: var(--bg-card);
  box-shadow: 0 0 0 3px rgba(var(--brand-primary-rgb), 0.08);
}

.form-control.is-invalid {
  border-color: #ef4444;
}

.error-msg {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.78rem;
  color: #ef4444;
  margin-top: 6px;
}

.btn-login {
  width: 100%;
  padding: 15px;
  background: linear-gradient(135deg, var(--brand-primary), var(--brand-primary-dark));
  color: #fff;
  font-size: 0.95rem;
  font-weight: 700;
  font-family: var(--font-body);
  border: none;
  border-radius: 10px;
  cursor: pointer;
  letter-spacing: 0.3px;
  transition: transform 0.15s, box-shadow 0.2s, opacity 0.2s;
  box-shadow: 0 4px 14px rgba(var(--brand-primary-rgb), 0.35);
  margin-top: 8px;
}

.btn-login:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(var(--brand-primary-rgb), 0.45);
}

.btn-login:active {
  transform: translateY(0);
}

.btn-login.loading {
  opacity: 0.75;
  pointer-events: none;
}

.form-footer {
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--border-subtle);
  text-align: center;
}

.form-footer p {
  font-size: 0.8rem;
  color: #9ca3af;
}

.form-footer strong {
  color: var(--text-dark);
  font-weight: 600;
}

/* ── RESPONSIVE ── */
@media (max-width: 900px) {
  .hero-panel {
    display: none;
  }
  .form-panel {
    width: 100%;
    padding: 48px 28px;
  }
}

@media (max-width: 480px) {
  .form-panel {
    padding: 36px 20px;
  }
  .form-header h1 {
    font-size: 1.5rem;
  }
}