:root{--color-bg: #fff5f8;--color-surface: #ffffff;--color-text: #3a2b31;--color-text-soft: #8a7079;--color-primary: #d2628a;--color-primary-dark: #b54a72;--color-on-primary: #ffffff;--color-accent: #e9a8c2;--color-border: #f3dde6;--color-muted-bg: #fdeef4;--color-success: #2e7d57;--color-success-bg: #e6f4ec;--color-warning-bg: #fff4e0;--color-danger: #c0392b;--color-danger-bg: #fbeae8;--gradient-soft: linear-gradient(135deg, #fdeef4, #f7e3ee);--font-family: "Be Vietnam Pro", "Segoe UI", system-ui, -apple-system, sans-serif;--font-size-sm: 15px;--font-size-base: 16px;--font-size-lg: 18px;--font-size-xl: 22px;--font-size-2xl: 26px;--line-height: 1.55;--space-1: 6px;--space-2: 12px;--space-3: 18px;--space-4: 24px;--space-5: 32px;--space-6: 48px;--radius: 14px;--radius-lg: 20px;--shadow: 0 2px 10px rgba(0, 0, 0, .08);--shadow-lg: 0 6px 22px rgba(0, 0, 0, .12);--btn-min-height: 54px;--tap-target: 48px;--container-max: 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var(--color-border)}.skin-slider::-webkit-slider-thumb{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:30px;height:30px;border-radius:50%;background:#fff;border:3px solid var(--color-primary);cursor:pointer;box-shadow:0 1px 4px #0000004d}.skin-slider::-moz-range-thumb{width:30px;height:30px;border-radius:50%;background:#fff;border:3px solid var(--color-primary);cursor:pointer}.skin-swatch{display:inline-block;width:30px;height:30px;border-radius:50%;border:1px solid var(--color-border);vertical-align:middle}.row{display:flex;gap:var(--space-2);align-items:center}.spacer{flex:1}.full-center{min-height:70vh;display:flex;align-items:center;justify-content:center}.welcome-card{background:var(--gradient-soft);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--space-3)}.welcome-card .welcome-text{font-size:var(--font-size-lg);font-weight:600;margin-bottom:var(--space-2)}.chat-bar{position:fixed;left:0;right:0;bottom:0;z-index:30;padding:8px 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