:root {
  --pale-gold: #C0B283;
  --silk: #DCD0C0;
  --paper: #F4F4F4;
  --charcoal: #373737;

  --color-bg-primary: #1A1A1A;
  --color-bg-secondary: #222222;
  --color-bg-tertiary: #111111;

  --color-text-primary: #F4F4F4;
  --color-text-secondary: #DCD0C0;
  --color-text-tertiary: #888888;

  --color-border-primary: #444444;
  --color-border-secondary: #4A4A4A;

  --color-accent: #C0B283;

  --gradient-purple: linear-gradient(135deg, #534AB7 0%, #7F77DD 100%);
  --gradient-coral: linear-gradient(135deg, #993C1D 0%, #D85A30 100%);
  --gradient-pink: linear-gradient(135deg, #993556 0%, #D4537E 100%);

  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;

  --spacing-xs: 8px;
  --spacing-sm: 12px;
  --spacing-md: 16px;
  --spacing-lg: 20px;
  --spacing-xl: 24px;
  --spacing-2xl: 32px;
  --spacing-3xl: 40px;

  --radius-sm: 8px;
  --radius-md: 10px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-2xl: 20px;

  --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.4);
  --shadow-lg: 0 10px 30px rgba(0,0,0,0.5);

  --transition-fast: 150ms ease-out;
  --transition-base: 200ms ease-out;
  --transition-slow: 300ms ease-out;
}

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

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text-primary);
  background: var(--color-bg-tertiary);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 { font-weight: 500; line-height: 1.2; color: var(--color-text-primary); }
h1 { font-size: 48px; font-weight: 700; letter-spacing: -1px; }
h2 { font-size: 28px; font-weight: 600; }
h3 { font-size: 22px; font-weight: 600; }
h4 { font-size: 18px; font-weight: 500; }

input[type="text"],
input[type="email"],
textarea {
  width: 100%;
  padding: 11px 14px;
  font-family: var(--font-sans);
  font-size: 15px;
  color: var(--color-text-primary);
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border-secondary);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-base);
  outline: none;
}

input[type="range"] {
  width: 100%;
  height: 4px;
  cursor: pointer;
  accent-color: #FFFFFF;
  background: transparent;
  border: none;
  padding: 0;
}

input::placeholder, textarea::placeholder { color: var(--color-text-tertiary); }

input[type="text"]:focus,
input[type="email"]:focus,
textarea:focus {
  border-color: #444;
  box-shadow: 0 0 0 3px rgba(255,255,255,0.04);
}

textarea { resize: vertical; min-height: 120px; }

button, .btn {
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 500;
  padding: 12px 24px;
  border: 1px solid var(--color-border-secondary);
  border-radius: var(--radius-lg);
  background: transparent;
  color: var(--color-text-primary);
  cursor: pointer;
  transition: all var(--transition-base);
  outline: none;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  text-align: center;
}

button:hover, .btn:hover { background: var(--color-bg-secondary); }
button:active, .btn:active { transform: scale(0.98); }
button:disabled { opacity: 0.4; cursor: not-allowed; transform: none !important; }

.btn-primary {
  background: #C0B283;
  color: #1A1A1A;
  border: none;
  font-weight: 600;
}
.btn-primary:hover { background: #D4C99A; color: #1A1A1A; }
.btn-primary:disabled { background: #4A4A4A; color: #777777; }

.segmented-control {
  display: flex;
  background: var(--color-bg-secondary);
  border-radius: var(--radius-md);
  padding: 3px;
  gap: 2px;
}

.segmented-control button {
  flex: 1;
  padding: 9px 16px;
  background: transparent;
  border: none;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: all var(--transition-base);
}

.segmented-control button.active {
  background: #444444;
  color: var(--color-text-primary);
}

label {
  display: block;
  font-size: 11px;
  font-weight: 600;
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-xs);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes shimmer {
  0% { transform: translateX(-100%) skewX(-15deg); }
  100% { transform: translateX(200%) skewX(-15deg); }
}

.fade-in { animation: fadeIn var(--transition-slow) ease-out; }