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

:root {
  --bg: #060810;
  --surface: #0d1017;
  --surface2: #111827;
  --border: #1f2937;
  --primary: #6366f1;
  --primary-glow: rgba(99,102,241,0.3);
  --text: #f1f5f9;
  --text-muted: #6b7280;
  --accent: #8b5cf6;
  --error: #ef4444;
}

html, body {
  height: 100%;
  font-family: 'Inter', sans-serif;
  background: var(--bg);
  color: var(--text);
  overflow: hidden;
}

.bg-grid {
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(99,102,241,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(99,102,241,0.04) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
  z-index: 0;
}

.login-wrapper {
  position: relative;
  z-index: 1;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.login-card {
  background: rgba(13,16,23,0.85);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 44px 40px 36px;
  width: 420px;
  backdrop-filter: blur(20px);
  box-shadow: 0 0 60px rgba(99,102,241,0.08), 0 24px 48px rgba(0,0,0,0.6);
  animation: slideUp 0.5s cubic-bezier(0.34,1.56,0.64,1) both;
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(40px) scale(0.97); }
  to   { opacity: 1; transform: none; }
}

.logo-area {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 36px;
}

.logo-icon {
  flex-shrink: 0;
  filter: drop-shadow(0 0 12px rgba(99,102,241,0.5));
}

.logo-text h1 {
  font-size: 1.4rem;
  font-weight: 700;
  background: linear-gradient(135deg, #a5b4fc, #c4b5fd);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.logo-text p {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 2px;
}

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

.form-group label {
  display: block;
  font-size: 0.78rem;
  font-weight: 500;
  color: #9ca3af;
  margin-bottom: 8px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.input-icon {
  position: absolute;
  left: 14px;
  color: var(--text-muted);
  pointer-events: none;
}

.input-wrapper input {
  width: 100%;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 44px;
  font-size: 0.92rem;
  color: var(--text);
  font-family: 'Inter', sans-serif;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.input-wrapper input::placeholder { color: #4b5563; }

.input-wrapper input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-glow);
}

.toggle-pw {
  position: absolute;
  right: 14px;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  padding: 0;
  transition: color 0.2s;
}

.toggle-pw:hover { color: var(--text); }

.error-msg {
  margin-top: 8px;
  font-size: 0.8rem;
  color: var(--error);
  display: flex;
  align-items: center;
  gap: 6px;
}

.btn-login {
  width: 100%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border: none;
  border-radius: 10px;
  padding: 13px 20px;
  color: #fff;
  font-size: 0.95rem;
  font-weight: 600;
  font-family: 'Inter', sans-serif;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  transition: opacity 0.2s, transform 0.15s, box-shadow 0.2s;
  box-shadow: 0 4px 20px rgba(99,102,241,0.35);
  margin-top: 8px;
}

.btn-login:hover {
  opacity: 0.92;
  transform: translateY(-1px);
  box-shadow: 0 8px 28px rgba(99,102,241,0.45);
}

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

.btn-login.loading {
  opacity: 0.7;
  pointer-events: none;
}

.login-footer {
  margin-top: 24px;
  text-align: center;
  font-size: 0.73rem;
  color: #374151;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}