:root {
  --bg-base: #0a0a0c;
  --card-bg: rgba(20, 20, 25, 0.6);
  --border: rgba(255, 255, 255, 0.08);
  --text-primary: #ffffff;
  --text-secondary: #94a3b8;

  --primary-gradient: linear-gradient(135deg, #6366f1 0%, #a855f7 100%);
  --positive: #10b981;
  --positive-glow: rgba(16, 185, 129, 0.2);
  --negative: #f43f5e;
  --negative-glow: rgba(244, 63, 94, 0.2);

  --glow-1: #6366f1;
  --glow-2: #ec4899;
  --glow-3: #8b5cf6;

  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family:
    "Outfit",
    -apple-system,
    sans-serif;
  background-color: var(--bg-base);
  color: var(--text-primary);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  overflow-x: hidden;
  position: relative;
  padding: 2rem;
}

/* Background animated glow effects */
.background-effects {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  overflow: hidden;
  z-index: -1;
  pointer-events: none;
}

.glow {
  position: absolute;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.15;
  animation: float 20s infinite alternate;
}

.glow-1 {
  top: -100px;
  left: -100px;
  background: var(--glow-1);
}

.glow-2 {
  bottom: -200px;
  right: -100px;
  background: var(--glow-2);
  animation-delay: -5s;
}

.glow-3 {
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: var(--glow-3);
  width: 800px;
  height: 800px;
  opacity: 0.1;
  animation: pulse 10s infinite;
}

@keyframes float {
  0% {
    transform: translateY(0) scale(1);
  }
  100% {
    transform: translateY(-50px) scale(1.1);
  }
}

@keyframes pulse {
  0%,
  100% {
    opacity: 0.1;
    transform: translate(-50%, -50%) scale(1);
  }
  50% {
    opacity: 0.15;
    transform: translate(-50%, -50%) scale(1.05);
  }
}

/* Main Container */
.container {
  width: 100%;
  max-width: 800px;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: 3rem;
}

/* Header */
.header {
  text-align: center;
}

.title {
  font-size: 3.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
}

.title .highlight {
  background: var(--primary-gradient);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

.subtitle {
  color: var(--text-secondary);
  font-size: 1.1rem;
  font-weight: 300;
}

/* Analysis Card */
.analysis-card {
  background: var(--card-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 3rem;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
  transition: var(--transition);
}

.analysis-card:hover {
  border-color: rgba(255, 255, 255, 0.15);
  box-shadow:
    0 25px 50px -12px rgba(0, 0, 0, 0.7),
    0 0 40px rgba(99, 102, 241, 0.1);
}

.input-group {
  margin-bottom: 1.5rem;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

textarea {
  width: 100%;
  padding: 1.5rem;
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid var(--border);
  border-radius: 16px;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 1.05rem;
  line-height: 1.5;
  resize: vertical;
  min-height: 120px;
  transition: var(--transition);
}

textarea:focus {
  outline: none;
  border-color: #6366f1;
  background: rgba(0, 0, 0, 0.4);
  box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1);
}

textarea::placeholder {
  color: rgba(255, 255, 255, 0.3);
}

/* Button */
.analyze-button {
  width: 100%;
  padding: 1rem 2rem;
  background: var(--primary-gradient);
  color: white;
  border: none;
  border-radius: 12px;
  font-family: inherit;
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: var(--transition);
  display: flex;
  justify-content: center;
  align-items: center;
}

.analyze-button::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(rgba(255, 255, 255, 0.2), transparent);
  opacity: 0;
  transition: var(--transition);
}

.analyze-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(99, 102, 241, 0.3);
}

.analyze-button:hover::before {
  opacity: 1;
}

.analyze-button:active {
  transform: translateY(0);
}

.analyze-button:disabled {
  opacity: 0.7;
  cursor: not-allowed;
  transform: none;
}

.spinner {
  width: 20px;
  height: 20px;
  border: 3px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top-color: white;
  animation: spin 1s ease-in-out infinite;
  position: absolute;
}

.hidden {
  display: none !important;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* Results Section */
.result-container {
  margin-top: 2.5rem;
  padding-top: 2.5rem;
  border-top: 1px solid var(--border);
  animation: slideUp 0.5s ease-out forwards;
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.result-header h2 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
}

.metrics {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.metric-box {
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.metric-label {
  color: var(--text-secondary);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
}

.metric-value {
  font-size: 1.8rem;
  font-weight: 700;
}

.metric-value.positive {
  color: var(--positive);
  text-shadow: 0 0 20px var(--positive-glow);
}

.metric-value.negative {
  color: var(--negative);
  text-shadow: 0 0 20px var(--negative-glow);
}

/* Progress Bar */
.progress-wrap {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-top: 0.5rem;
}

.progress-bar-bg {
  flex: 1;
  height: 8px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 4px;
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  width: 0%;
  background: var(--primary-gradient);
  border-radius: 4px;
  transition: width 1s cubic-bezier(0.1, 0.8, 0.2, 1);
}

.progress-bar-fill.positive {
  background: var(--positive);
}

.progress-bar-fill.negative {
  background: var(--negative);
}

.metric-value.small {
  font-size: 1.2rem;
  min-width: 48px;
}

/* Error Message */
.error-message {
  margin-top: 1rem;
  padding: 1rem;
  background: rgba(244, 63, 94, 0.1);
  border: 1px solid rgba(244, 63, 94, 0.2);
  border-radius: 8px;
  color: #fca5a5;
  text-align: center;
  font-size: 0.95rem;
}

/* Footer */
.footer {
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.9rem;
  opacity: 0.7;
}

/* Responsive */
@media (max-width: 640px) {
  .title {
    font-size: 2.5rem;
  }

  .analysis-card {
    padding: 2rem;
  }

  .metrics {
    grid-template-columns: 1fr;
  }
}