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

:root {
  --bg-gradient: linear-gradient(135deg, #0f172a 0%, #1e1b4b 50%, #311042 100%);
  --panel-bg: rgba(15, 23, 42, 0.45);
  --panel-border: rgba(255, 255, 255, 0.08);
  --glow-primary: rgba(99, 102, 241, 0.15);
  --glow-secondary: rgba(168, 85, 247, 0.25);
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --accent-color: #6366f1;
  --accent-glow: #8b5cf6;
  --success-color: #10b981;
  --error-color: #ef4444;
  --card-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.5);
  --transition-speed: 0.3s;
}

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

body {
  font-family: 'Outfit', sans-serif;
  background: var(--bg-gradient);
  background-attachment: fixed;
  color: var(--text-primary);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  overflow-x: hidden;
}

/* Glassmorphic Container */
.container {
  width: 100%;
  max-width: 450px;
  padding: 20px;
}

.card {
  background: var(--panel-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--panel-border);
  border-radius: 24px;
  padding: 40px;
  box-shadow: var(--card-shadow);
  position: relative;
  overflow: hidden;
  transition: transform var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
}

.card::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, var(--glow-secondary) 0%, transparent 60%);
  z-index: 0;
  pointer-events: none;
  animation: pulse-glow 8s infinite alternate;
}

@keyframes pulse-glow {
  0% { transform: translate(-10%, -10%) scale(0.9); opacity: 0.5; }
  100% { transform: translate(10%, 10%) scale(1.1); opacity: 0.8; }
}

.card-content {
  position: relative;
  z-index: 1;
}

/* Typography */
h1 {
  font-size: 2.2rem;
  font-weight: 700;
  margin-bottom: 8px;
  background: linear-gradient(to right, #818cf8, #c084fc, #f472b6);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  text-align: center;
}

.subtitle {
  color: var(--text-secondary);
  font-size: 0.95rem;
  text-align: center;
  margin-bottom: 30px;
}

/* Forms */
.form-group {
  margin-bottom: 20px;
  position: relative;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 8px;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.input-wrapper {
  position: relative;
}

.input-wrapper input {
  width: 100%;
  padding: 14px 16px;
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  color: var(--text-primary);
  font-size: 1rem;
  font-family: inherit;
  transition: all var(--transition-speed) ease;
  outline: none;
}

.input-wrapper input:focus {
  border-color: var(--accent-color);
  box-shadow: 0 0 15px rgba(99, 102, 241, 0.3);
  background: rgba(15, 23, 42, 0.8);
}

/* Button with Gradient & Animation */
.btn {
  width: 100%;
  padding: 14px;
  border: none;
  border-radius: 12px;
  font-size: 1rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  color: #ffffff;
  background: linear-gradient(135deg, #6366f1 0%, #a855f7 100%);
  box-shadow: 0 4px 15px rgba(168, 85, 247, 0.4);
  transition: all var(--transition-speed) ease;
  position: relative;
  overflow: hidden;
}

.btn::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: 0.5s;
}

.btn:hover::after {
  left: 100%;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(168, 85, 247, 0.6);
}

.btn:active {
  transform: translateY(1px);
}

/* Tabs */
.tabs {
  display: flex;
  background: rgba(15, 23, 42, 0.6);
  padding: 6px;
  border-radius: 14px;
  margin-bottom: 25px;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.tab-btn {
  flex: 1;
  padding: 10px;
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  border-radius: 10px;
  transition: all var(--transition-speed) ease;
}

.tab-btn.active {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-primary);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

/* Feedback messages */
.alert {
  padding: 12px 16px;
  border-radius: 10px;
  font-size: 0.9rem;
  margin-bottom: 20px;
  display: none;
  animation: slide-down 0.3s ease;
}

@keyframes slide-down {
  0% { transform: translateY(-10px); opacity: 0; }
  100% { transform: translateY(0); opacity: 1; }
}

.alert-success {
  background: rgba(16, 185, 129, 0.15);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: #34d399;
  display: block;
}

.alert-error {
  background: rgba(239, 68, 68, 0.15);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: #f87171;
  display: block;
}

/* Dashboard Styling */
.dashboard-card {
  max-width: 700px;
}

.user-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 30px;
  padding-bottom: 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.welcome-msg {
  font-size: 1.5rem;
  font-weight: 600;
}

.logout-btn {
  background: rgba(239, 68, 68, 0.15);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: #f87171;
  padding: 8px 16px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 500;
  transition: all var(--transition-speed) ease;
}

.logout-btn:hover {
  background: #ef4444;
  color: #ffffff;
}

.grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 30px;
}

@media (max-width: 600px) {
  .grid {
    grid-template-columns: 1fr;
  }
}

.info-box {
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 14px;
  padding: 20px;
}

.info-label {
  font-size: 0.8rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  margin-bottom: 5px;
}

.info-value {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text-primary);
}

.security-panel {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 16px;
  padding: 25px;
}

.security-title {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 20px;
}

/* Footer style */
.footer {
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-top: 25px;
}

.footer a {
  color: var(--accent-color);
  text-decoration: none;
  transition: color var(--transition-speed);
}

.footer a:hover {
  color: var(--accent-glow);
}