:root{--background:224 18% 98%;--foreground:220 15% 12%;--card:224 18% 98%;--card-foreground:220 15% 12%;--popover:224 20% 99%;--popover-foreground:220 15% 12%;--primary:217 90% 56%;--primary-foreground:0 0% 100%;--secondary:224 16% 91%;--secondary-foreground:224 20% 18%;--accent:217 88% 58%;--accent-foreground:0 0% 100%;--muted:224 16% 93%;--muted-foreground:224 10% 40%;--destructive:0 72% 45%;--destructive-foreground:0 0% 98%;--border:224 18% 86%;--input:224 18% 50%;--ring:217 90% 56%;--radius:0.6rem;--brand-gradient-from:217 90% 56%;--brand-gradient-to:217 82% 62%;--hero-surface:hsl(var(--background));--hero-grid-line:hsl(var(--foreground)/0.06);--hero-overlay-from:hsl(var(--background)/0.85);--hero-overlay-mid:hsl(var(--background)/0.35);--hero-overlay-to:hsl(var(--background));--hero-glow-start:hsl(var(--primary)/0.14);--hero-glow-mid:hsl(var(--accent)/0.08)}.dark{--background:224 22% 10%;--foreground:220 15% 96%;--card:224 22% 10%;--card-foreground:220 15% 96%;--popover:224 24% 8%;--popover-foreground:220 15% 96%;--primary:217 90% 60%;--primary-foreground:0 0% 100%;--secondary:224 20% 18%;--secondary-foreground:0 0% 100%;--accent:217 80% 60%;--accent-foreground:0 0% 100%;--muted:224 18% 26%;--muted-foreground:224 12% 72%;--destructive:0 72% 46%;--destructive-foreground:0 0% 98%;--border:224 18% 36%;--input:224 20% 46%;--ring:217 90% 60%;--radius:0.6rem;--brand-gradient-from:217 90% 60%;--brand-gradient-to:217 80% 64%;--hero-surface:hsl(var(--background));--hero-grid-line:hsl(var(--foreground)/0.08);--hero-overlay-from:hsl(var(--background)/0.82);--hero-overlay-mid:hsl(var(--background)/0.48);--hero-overlay-to:hsl(var(--background));--hero-glow-start:hsl(var(--primary)/0.18);--hero-glow-mid:hsl(var(--accent)/0.12)}.bg-brand-gradient{background:linear-gradient(135deg,hsl(var(--brand-gradient-from)) 0,hsl(var(--brand-gradient-to)) 100%)}.bg-accent-soft{background:hsl(var(--accent)/.14)}.option-card{border:1px solid hsl(var(--border));background:hsl(var(--card));transition:border-color .2s ease,background-color .2s ease,box-shadow .2s ease}.option-card:hover{border-color:hsl(var(--primary));background:hsl(var(--card));box-shadow:0 0 0 3px hsl(var(--primary)/.18)}.option-card--selected{border-color:hsl(var(--primary));background:hsl(var(--primary)/.08);box-shadow:inset 0 0 0 1px hsl(var(--primary)/.35)}.option-card__label{color:hsl(var(--muted-foreground))}.option-card--selected .option-card__label{color:hsl(var(--foreground))}.preview-chip{border:1px solid transparent;transition:background-color .2s ease,border-color .2s ease,box-shadow .2s ease}.option-card:hover .preview-chip,.preview-chip{background:hsl(var(--border))}.option-card--selected .preview-chip{background:hsl(var(--primary))}