:root {
  --bg-primary: #0a0a0f;
  --bg-secondary: #12121a;
  --glass-bg: rgba(255, 255, 255, 0.03);
  --glass-border: rgba(255, 255, 255, 0.08);
  --text-primary: #ffffff;
  --text-secondary: rgba(255, 255, 255, 0.6);
  --text-muted: rgba(255, 255, 255, 0.4);
  --accent-gradient: linear-gradient(
    135deg,
    #6366f1 0%,
    #8b5cf6 50%,
    #a855f7 100%
  );
  --accent-glow: rgba(139, 92, 246, 0.4);
  --success: #10b981;
  --font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 24px;
  --shadow-glow: 0 0 60px rgba(139, 92, 246, 0.15);
}

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

html {
  font-size: 16px;
}

body {
  font-family: var(--font-family);
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow-x: hidden;
  position: relative;
}

/* Animated Background */
.background-effects {
  position: fixed;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  z-index: 0;
}

.gradient-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.5;
  animation: float 20s ease-in-out infinite;
}

.orb-1 {
  width: 600px;
  height: 600px;
  background: radial-gradient(
    circle,
    rgba(99, 102, 241, 0.3) 0%,
    transparent 70%
  );
  top: -200px;
  left: -200px;
  animation-delay: 0s;
}

.orb-2 {
  width: 500px;
  height: 500px;
  background: radial-gradient(
    circle,
    rgba(168, 85, 247, 0.25) 0%,
    transparent 70%
  );
  bottom: -150px;
  right: -150px;
  animation-delay: -7s;
}

.orb-3 {
  width: 400px;
  height: 400px;
  background: radial-gradient(
    circle,
    rgba(139, 92, 246, 0.2) 0%,
    transparent 70%
  );
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  animation-delay: -14s;
}

@keyframes float {
  0%,
  100% {
    transform: translate(0, 0) scale(1);
  }
  25% {
    transform: translate(30px, -30px) scale(1.05);
  }
  50% {
    transform: translate(-20px, 20px) scale(0.95);
  }
  75% {
    transform: translate(-30px, -20px) scale(1.02);
  }
}

/* Main Container */
.container {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 480px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* Glassmorphism Card */
.card {
  background: var(--glass-bg);
  backdrop-filter: blur(40px);
  -webkit-backdrop-filter: blur(40px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  padding: 40px 32px;
  box-shadow: var(--shadow-glow);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 80px rgba(139, 92, 246, 0.2);
}

/* Card Header */
.card-header {
  text-align: center;
  margin-bottom: 32px;
}

.icon-wrapper {
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  background: var(--accent-gradient);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 32px var(--accent-glow);
}

.icon-wrapper svg {
  color: white;
}

h1 {
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
  background: linear-gradient(135deg, #fff 0%, rgba(255, 255, 255, 0.8) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.subtitle {
  color: var(--text-secondary);
  font-size: 0.95rem;
  font-weight: 400;
}

/* Password Display */
.password-display {
  background: var(--bg-secondary);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 20px;
  min-height: 68px;
  transition: border-color 0.3s ease;
}

.password-display:hover {
  border-color: rgba(139, 92, 246, 0.3);
}

.password-text {
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--text-primary);
  word-break: break-all;
  flex: 1;
  user-select: all;
}

.password-text.placeholder {
  color: var(--text-muted);
  font-size: 0.95rem;
  font-weight: 400;
}

.copy-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 10px;
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.copy-btn:hover:not(:disabled) {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.1);
}

.copy-btn:active:not(:disabled) {
  transform: scale(0.95);
}

.copy-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.copy-btn.copied {
  color: var(--success);
}

/* Generate Button */
.generate-btn {
  width: 100%;
  padding: 18px 24px;
  font-family: var(--font-family);
  font-size: 1rem;
  font-weight: 600;
  color: white;
  background: var(--accent-gradient);
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  transition: all 0.3s ease;
  box-shadow: 0 4px 24px var(--accent-glow);
  position: relative;
  overflow: hidden;
}

.generate-btn::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.2) 0%,
    transparent 50%
  );
  opacity: 0;
  transition: opacity 0.3s ease;
}

.generate-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px var(--accent-glow);
}

.generate-btn:hover::before {
  opacity: 1;
}

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

.generate-btn svg {
  transition: transform 0.3s ease;
}

.generate-btn:hover svg {
  transform: rotate(180deg);
}

/* Info Section */
.info-section {
  margin-top: 28px;
  padding-top: 24px;
  border-top: 1px solid var(--glass-border);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.info-item {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-secondary);
  font-size: 0.875rem;
}

.info-icon {
  font-size: 1rem;
}

/* Footer */
footer {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.8rem;
}

/* Toast Notification */
.toast {
  position: fixed;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: var(--bg-secondary);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 14px 24px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--success);
  font-size: 0.9rem;
  font-weight: 500;
  opacity: 0;
  visibility: hidden;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 1000;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.toast.show {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

/* Responsive */
@media (max-width: 520px) {
  .container {
    padding: 16px;
  }

  .card {
    padding: 32px 24px;
  }

  h1 {
    font-size: 1.5rem;
  }

  .password-text {
    font-size: 1.1rem;
  }

  .generate-btn {
    padding: 16px 20px;
  }
}

/* Selection */
::selection {
  background: rgba(139, 92, 246, 0.4);
  color: white;
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.2);
}