:root{--color-bg-primary: #ffffff;--color-bg-secondary: #f9fafb;--color-bg-tertiary: #f3f4f6;--color-bg-card: #ffffff;--color-bg-input: #f9fafb;--color-bg-hover: #f3f4f6;--color-bg-active: #f9fafb;--color-text-primary: #111827;--color-text-secondary: #6b7280;--color-text-tertiary: #9ca3af;--color-text-muted: #9ca3af;--color-text-inverse: #ffffff;--color-border-primary: #f3f4f6;--color-border-secondary: #e5e7eb;--color-border-focus: #fdba74;--color-brand-primary: #f97316;--color-brand-secondary: #ea580c;--color-brand-light: #fff7ed;--color-brand-bg: #fed7aa;--shadow-card: 0 1px 3px 0 rgba(0, 0, 0, .1), 0 1px 2px 0 rgba(0, 0, 0, .06);--shadow-card-hover: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -1px rgba(0, 0, 0, .06);--shadow-dropdown: 0 10px 15px -3px rgba(0, 0, 0, .1), 0 4px 6px -2px rgba(0, 0, 0, .05);--gradient-brand: linear-gradient(to right, #f97316, #ea580c);--gradient-brand-hover: linear-gradient(to right, #ea580c, #dc2626);--shadow-glow: 0 4px 14px 0 rgba(249, 115, 22, .35);--shadow-glow-hover: 0 6px 20px 0 rgba(249, 115, 22, .45);--ease-smooth: cubic-bezier(.4, 0, .2, 1)}.dark{--color-bg-primary: #0f172a;--color-bg-secondary: #1e293b;--color-bg-tertiary: #334155;--color-bg-card: #1e293b;--color-bg-input: #1e293b;--color-bg-hover: #334155;--color-bg-active: #475569;--color-text-primary: #f1f5f9;--color-text-secondary: #94a3b8;--color-text-tertiary: #64748b;--color-text-muted: #64748b;--color-text-inverse: #0f172a;--color-border-primary: #334155;--color-border-secondary: #475569;--color-border-focus: #fb923c;--color-brand-primary: #fb923c;--color-brand-secondary: #f97316;--color-brand-light: #1c1917;--color-brand-bg: #7c2d12;--shadow-card: 0 1px 3px 0 rgba(0, 0, 0, .3), 0 1px 2px 0 rgba(0, 0, 0, .2);--shadow-card-hover: 0 4px 6px -1px rgba(0, 0, 0, .4), 0 2px 4px -1px rgba(0, 0, 0, .3);--shadow-dropdown: 0 10px 15px -3px rgba(0, 0, 0, .4), 0 4px 6px -2px rgba(0, 0, 0, .3);--gradient-brand: linear-gradient(to right, #fb923c, #f97316);--gradient-brand-hover: linear-gradient(to right, #f97316, #ea580c);--shadow-glow: 0 4px 14px 0 rgba(251, 146, 60, .35);--shadow-glow-hover: 0 6px 20px 0 rgba(251, 146, 60, .45)}*{transition:background-color .2s ease,border-color .2s ease,color .2s ease}.btn-premium{position:relative;overflow:hidden;background:var(--gradient-brand);color:#fff;font-weight:700;border-radius:16px;padding:14px 28px;box-shadow:var(--shadow-glow);transition:all .3s var(--ease-smooth);cursor:pointer;border:none;outline:none}.btn-premium:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:linear-gradient(135deg,transparent 35%,rgba(255,255,255,.18) 50%,transparent 65%);transform:translate(-100%) skew(-12deg);transition:transform .6s}.btn-premium:hover:after{transform:translate(200%) skew(-12deg)}.btn-premium:hover{transform:translateY(-2px);box-shadow:var(--shadow-glow-hover)}.btn-premium:active{transform:translateY(0) scale(.98)}.btn-premium:disabled{background:#9ca3af;box-shadow:none;cursor:not-allowed;transform:none}.btn-premium:disabled:after{display:none}