/* Reset & CSS Custom Properties */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg-color: #050505;
  --fg-color: #f3f4f6;
  --muted-fg: #9ca3af;
  --muted-fg-70: rgba(156, 163, 175, 0.7);
  --card-bg: rgba(15, 15, 17, 0.7);
  --card-border: rgba(255, 255, 255, 0.1);
  --input-bg: rgba(255, 255, 255, 0.04);
  --input-border: rgba(255, 255, 255, 0.12);
  --input-focus: rgba(255, 255, 255, 0.3);
  --primary-btn-bg: #ffffff;
  --primary-btn-fg: #050505;
  --primary-btn-hover: #e5e7eb;
  --disabled-btn-bg: rgba(255, 255, 255, 0.15);
  --disabled-btn-fg: rgba(255, 255, 255, 0.4);
  --accent-green: #10b981;
  --accent-green-bg: rgba(16, 185, 129, 0.15);
  --motion-ease: cubic-bezier(0.16, 1, 0.3, 1);
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

html, body {
  height: 100%;
  width: 100%;
  background-color: var(--bg-color);
  color: var(--fg-color);
  font-family: var(--font-sans);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Page Layout */
.page-container {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background-color: var(--bg-color);
}

/* Background Radial Gradient */
.bg-gradient-overlay {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(120% 90% at 75% 10%, #2e2e2e 0%, #1c1c1c 35%, #0a0a0a 70%, #050505 100%);
  z-index: 1;
}

/* Subtle Interactive Ambient Glow */
.ambient-glow {
  position: absolute;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.04) 0%, rgba(0, 0, 0, 0) 70%);
  pointer-events: none;
  z-index: 2;
  transform: translate(-50%, -50%);
  transition: opacity 0.6s ease;
  top: 50%;
  left: 50%;
}

/* Main Content */
.main-content {
  position: relative;
  z-index: 10;
  width: 100%;
  max-width: 1200px;
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 4rem 1.5rem;
}

/* Entrance Animations */
.animate-item {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.8s var(--motion-ease), transform 0.8s var(--motion-ease);
  transition-delay: var(--delay, 0ms);
}

.waitlist-card.animate-item {
  transform: translateY(16px) scale(0.96);
}

.page-loaded .animate-item {
  opacity: 1;
  transform: translateY(0);
}

.page-loaded .waitlist-card.animate-item {
  opacity: 1;
  transform: translateY(0) scale(1);
}

/* Brand Header */
.brand-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.logo-icon {
  width: 2.25rem;
  height: 2.25rem;
  color: var(--fg-color);
  flex-shrink: 0;
}

.brand-title {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.025em;
  color: var(--fg-color);
}

/* Hero Title */
.hero-title {
  margin-top: 1.5rem;
  max-width: 42rem;
  text-align: center;
  font-size: 2.25rem;
  line-height: 1.05;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--fg-color);
  text-wrap: balance;
}

@media (min-width: 640px) {
  .hero-title {
    font-size: 3.75rem;
  }
}

/* Subtitle */
.hero-subtitle {
  margin-top: 1.25rem;
  max-width: 28rem;
  text-align: center;
  font-size: 1rem;
  line-height: 1.6;
  color: var(--muted-fg);
  text-wrap: balance;
}

@media (min-width: 640px) {
  .hero-subtitle {
    font-size: 1.125rem;
  }
}

/* Card Container (Glassmorphic) */
.waitlist-card {
  margin-top: 2.5rem;
  width: 100%;
  max-width: 24rem;
  border-radius: 0.75rem;
  border: 1px solid var(--card-border);
  background: var(--card-bg);
  padding: 1.5rem;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(255, 255, 255, 0.05) inset;
  position: relative;
  overflow: hidden;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.waitlist-card:hover {
  border-color: rgba(255, 255, 255, 0.18);
  box-shadow: 0 30px 60px -12px rgba(0, 0, 0, 0.6), 0 0 25px rgba(255, 255, 255, 0.04);
}

/* Form Styles */
.waitlist-form {
  display: flex;
  flex-direction: column;
  gap: 0.875rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
}

.label-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.form-label {
  font-size: 0.875rem;
  font-weight: 500;
  line-height: 1;
  color: var(--fg-color);
  user-select: none;
}

.handle-status-badge {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent-green);
  background: var(--accent-green-bg);
  padding: 0.125rem 0.5rem;
  border-radius: 9999px;
  animation: fadeIn 0.2s ease;
}

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

.input-prefix {
  position: absolute;
  left: 0.75rem;
  font-size: 0.875rem;
  color: var(--muted-fg);
  pointer-events: none;
  z-index: 2;
}

.form-input {
  height: 2.25rem;
  width: 100%;
  min-width: 0;
  border-radius: 0.375rem;
  border: 1px solid var(--input-border);
  background: var(--input-bg);
  padding: 0.25rem 0.75rem;
  font-size: 0.875rem;
  color: var(--fg-color);
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
  font-family: inherit;
}

.form-input.prepended-input {
  padding-left: 2rem;
}

.form-input::placeholder {
  color: var(--muted-fg-70);
}

.form-input:focus {
  border-color: var(--input-focus);
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.06);
}

.form-input.input-error {
  border-color: #ef4444;
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.15);
}

.field-error-space {
  font-size: 0.75rem;
  color: #f87171;
  min-height: 0.875rem;
  margin-top: 0.125rem;
  transition: opacity 0.2s ease;
}

/* Submit Button */
.submit-btn {
  margin-top: 0.5rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  height: 2.25rem;
  padding: 0.5rem 1rem;
  border-radius: 0.375rem;
  border: none;
  font-size: 0.875rem;
  font-weight: 500;
  font-family: inherit;
  white-space: nowrap;
  cursor: pointer;
  background-color: var(--primary-btn-bg);
  color: var(--primary-btn-fg);
  transition: background-color 0.2s ease, opacity 0.2s ease, transform 0.15s ease;
  outline: none;
  user-select: none;
}

.submit-btn:hover:not(:disabled) {
  background-color: var(--primary-btn-hover);
  transform: translateY(-1px);
}

.submit-btn:active:not(:disabled) {
  transform: scale(0.97);
}

.submit-btn:disabled {
  background-color: var(--disabled-btn-bg);
  color: var(--disabled-btn-fg);
  cursor: not-allowed;
  opacity: 0.6;
}

/* Spinner */
.btn-spinner {
  width: 1rem;
  height: 1rem;
  border: 2px solid rgba(0, 0, 0, 0.2);
  border-top-color: #000;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

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

/* Success View */
.success-view {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 0.5rem 0;
  animation: fadeInScale 0.4s var(--motion-ease);
}

.success-icon-wrapper {
  width: 3rem;
  height: 3rem;
  border-radius: 50%;
  background: var(--accent-green-bg);
  color: var(--accent-green);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
  box-shadow: 0 0 20px rgba(16, 185, 129, 0.2);
}

.success-check {
  width: 1.5rem;
  height: 1.5rem;
}

.success-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--fg-color);
  margin-bottom: 0.5rem;
}

.success-msg {
  font-size: 0.875rem;
  color: var(--muted-fg);
  line-height: 1.5;
  margin-bottom: 1rem;
}

.highlight-handle {
  color: var(--fg-color);
}

.waitlist-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--input-border);
  padding: 0.375rem 0.875rem;
  border-radius: 9999px;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--muted-fg);
  margin-bottom: 1.25rem;
}

.waitlist-badge span {
  color: var(--fg-color);
  font-weight: 700;
}

.share-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  width: 100%;
  height: 2.25rem;
  border-radius: 0.375rem;
  border: 1px solid var(--card-border);
  background: rgba(255, 255, 255, 0.08);
  color: var(--fg-color);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.2s ease, transform 0.15s ease;
}

.share-btn:hover {
  background: rgba(255, 255, 255, 0.14);
}

.share-btn:active {
  transform: scale(0.97);
}

.share-icon {
  width: 1rem;
  height: 1rem;
}

/* Footer */
.footer {
  position: absolute;
  bottom: 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
}

.social-links {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.social-link {
  color: var(--muted-fg-70);
  transition: color 0.2s ease, transform 0.2s ease;
  display: flex;
  align-items: center;
}

.social-link:hover {
  color: var(--fg-color);
  transform: translateY(-1px);
}

.social-icon {
  width: 1rem;
  height: 1rem;
}

.credit-text {
  font-size: 0.75rem;
  color: var(--muted-fg-70);
}

.credit-link {
  color: inherit;
  text-decoration: underline;
  transition: color 0.2s ease;
}

.credit-link:hover {
  color: var(--fg-color);
}

/* Toast */
.toast {
  position: fixed;
  bottom: 5rem;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: rgba(255, 255, 255, 0.95);
  color: #050505;
  padding: 0.5rem 1rem;
  border-radius: 0.5rem;
  font-size: 0.875rem;
  font-weight: 600;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.4);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease, transform 0.3s var(--motion-ease);
  z-index: 100;
}

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

/* Utilities */
.hidden {
  display: none !important;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes fadeInScale {
  from {
    opacity: 0;
    transform: scale(0.94);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}