/* Reset & Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  /* Quiet Luxe Palette */
  --pine-dark: #0f1c18;
  --pine-medium: #132824;
  --pine-soft: #18322c;
  --mist: #cfe1d8;

  /* Text Colors */
  --text-primary: rgba(244, 248, 246, 0.96);
  --text-secondary: rgba(244, 248, 246, 0.72);
  --text-tertiary: rgba(244, 248, 246, 0.5);

  /* Accent */
  --gold: #d9bf96;
  --gold-hover: #e3cda8;

  /* Surfaces */
  --surface-glass: rgba(207, 225, 216, 0.08);
  --border-hairline: rgba(207, 225, 216, 0.14);

  /* Semantic */
  --success: #6ee7b7;
  --error: #fca5a5;
  --info: #93c5fd;

  /* Spacing */
  --spacing-xs: 8px;
  --spacing-sm: 16px;
  --spacing-md: 24px;
  --spacing-lg: 32px;
  --spacing-xl: 48px;
  --spacing-2xl: 64px;

  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  /* Typography */
  --font-sans:
    "Manrope", -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI",
    system-ui, sans-serif;
  --font-serif: "Fraunces", "Times New Roman", serif;
}

body {
  font-family: var(--font-sans);
  background:
    radial-gradient(
      1200px 500px at 20% -10%,
      rgba(217, 191, 150, 0.12),
      transparent 60%
    ),
    radial-gradient(
      900px 600px at 90% 10%,
      rgba(207, 225, 216, 0.08),
      transparent 60%
    ),
    linear-gradient(180deg, #0f1c18 0%, #132824 40%, #18322c 70%, #0f1c18 100%);
  min-height: 100vh;
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.container {
  max-width: 980px;
  margin: 0 auto;
  padding: var(--spacing-md);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  position: relative;
  z-index: 1;
}

/* Header */
.header {
  padding: var(--spacing-md) 0;
  margin-bottom: var(--spacing-lg);
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.logo-text {
  font-size: 20px;
  font-weight: 500;
  letter-spacing: -0.3px;
  color: var(--text-primary);
}

/* Hero Section */
.hero {
  flex: 1;
  display: flex;
  flex-direction: column;
  padding: var(--spacing-md) 0 var(--spacing-2xl);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--spacing-2xl);
  align-items: start;
}

.hero-copy {
  text-align: left;
}

.hero-panel {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.eyebrow {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--text-tertiary);
  margin-bottom: var(--spacing-sm);
}

.hero-title {
  font-family: var(--font-serif);
  font-size: 56px;
  font-weight: 600;
  line-height: 1.05;
  letter-spacing: -0.5px;
  margin-bottom: var(--spacing-md);
}

.hero-subtitle {
  font-size: 20px;
  font-weight: 400;
  color: var(--text-secondary);
  opacity: 0.85;
  margin-bottom: var(--spacing-xl);
  line-height: 1.5;
}

.pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
}

.pill {
  padding: 6px 12px;
  border-radius: 999px;
  border: 0.5px solid var(--border-hairline);
  background: rgba(255, 255, 255, 0.05);
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--text-secondary);
}

/* Benefits List */
.benefits {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-xl);
  align-items: flex-start;
}

.benefit-item {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
  font-size: 15px;
  font-weight: 500;
  color: var(--text-primary);
  line-height: 1.4;
}

.check-icon {
  width: 20px;
  height: 20px;
  color: var(--success);
  flex-shrink: 0;
}

/* Signup Card */
.signup-card {
  background: var(--surface-glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 0.5px solid var(--border-hairline);
  border-radius: var(--radius-xl);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.3);
}

.signup-form {
  margin-bottom: var(--spacing-md);
}

.form-group {
  margin-bottom: var(--spacing-sm);
}

.form-label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  margin-bottom: var(--spacing-xs);
  text-align: left;
  color: var(--text-primary);
}

.form-input {
  width: 100%;
  padding: 14px 16px;
  font-size: 16px;
  font-family: var(--font-sans);
  background: rgba(255, 255, 255, 0.95);
  border: 0.5px solid var(--border-hairline);
  border-radius: var(--radius-md);
  color: #1f2937;
  transition: all 0.2s ease;
}

.form-input:focus {
  outline: none;
  border-color: var(--gold);
  background: #ffffff;
  box-shadow: 0 0 0 4px rgba(232, 197, 145, 0.15);
}

.form-input::placeholder {
  color: #9ca3af;
}

.form-hint {
  margin-top: var(--spacing-xs);
  font-size: 13px;
  color: var(--text-tertiary);
  text-align: left;
}

.submit-button {
  width: 100%;
  padding: 14px 24px;
  font-size: 16px;
  font-weight: 600;
  font-family: var(--font-sans);
  background: var(--gold);
  color: #ffffff;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.2s ease;
  position: relative;
  overflow: hidden;
}

.submit-button:hover {
  background: var(--gold-hover);
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(232, 197, 145, 0.3);
}

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

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

.button-loader {
  display: flex;
  align-items: center;
  justify-content: center;
}

.spinner {
  width: 20px;
  height: 20px;
  animation: spin 0.8s linear infinite;
}

.spinner-circle {
  stroke-dasharray: 62.83;
  stroke-dashoffset: 47.12;
  animation: dash 1.5s ease-in-out infinite;
}

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

@keyframes dash {
  0% {
    stroke-dashoffset: 62.83;
  }
  50% {
    stroke-dashoffset: 15.71;
  }
  100% {
    stroke-dashoffset: 62.83;
  }
}

.form-message {
  margin-top: var(--spacing-sm);
  padding: var(--spacing-sm);
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 500;
  text-align: center;
}

.form-message-success {
  background: rgba(16, 185, 129, 0.15);
  border: 0.5px solid rgba(16, 185, 129, 0.3);
  color: var(--success);
}

.form-message-error {
  background: rgba(239, 68, 68, 0.15);
  border: 0.5px solid rgba(239, 68, 68, 0.3);
  color: var(--error);
}

.form-message-info {
  background: rgba(59, 130, 246, 0.15);
  border: 0.5px solid rgba(59, 130, 246, 0.3);
  color: var(--info);
}

.form-note {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* How It Works */
.how-it-works {
  margin-top: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.section-title {
  font-size: 18px;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
}

.steps {
  list-style: none;
  counter-reset: step;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  padding: 0;
  margin: 0 auto;
  max-width: 520px;
  text-align: left;
  color: var(--text-secondary);
}

.steps li {
  position: relative;
  padding-left: 28px;
  font-size: 15px;
  line-height: 1.5;
}

.steps li::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  left: 0;
  top: 1px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  color: #1f2937;
  background: var(--gold);
}

/* Research Badge */
.research-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-sm) var(--spacing-md);
  background: rgba(255, 255, 255, 0.05);
  border: 0.5px solid var(--border-hairline);
  border-radius: var(--radius-lg);
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  align-self: flex-start;
}

.badge-icon {
  width: 18px;
  height: 18px;
  color: var(--gold);
  flex-shrink: 0;
}

/* Footer */
.footer {
  padding: var(--spacing-lg) 0;
  text-align: center;
  border-top: 0.5px solid var(--border-hairline);
  margin-top: var(--spacing-xl);
}

.footer-links {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-sm);
}

.footer-link {
  font-size: 14px;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.2s ease;
}

.footer-link:hover {
  color: var(--text-primary);
}

.footer-divider {
  color: var(--text-tertiary);
}

.footer-copyright {
  font-size: 14px;
  color: var(--text-tertiary);
}

/* Responsive Design */
@media (max-width: 640px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }

  .hero-copy {
    text-align: left;
  }

  .pill-row {
    justify-content: flex-start;
  }

  .benefits {
    align-items: flex-start;
  }

  .research-badge {
    align-self: flex-start;
  }

  .hero-panel {
    gap: var(--spacing-md);
  }

  .hero-title {
    font-size: 38px;
    letter-spacing: -0.3px;
  }

  .hero-subtitle {
    font-size: 18px;
  }

  .signup-card {
    padding: var(--spacing-md);
  }

  .container {
    padding: var(--spacing-sm);
  }

  .steps {
    max-width: 100%;
  }
}

@media (max-width: 400px) {
  .hero-title {
    font-size: 32px;
  }

  .hero-subtitle {
    font-size: 16px;
  }

  .benefit-item {
    font-size: 14px;
  }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Focus Styles for Keyboard Navigation */
a:focus-visible,
button:focus-visible,
input:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
}