:root{--color-primary:#2d2d2d;--color-secondary:#6b6b6b;--color-accent:#4a90e2;--color-bg-primary:#fff;--color-bg-secondary:#f5f5f5;--color-bg-tertiary:#e8e8e8;--color-text-primary:#2d2d2d;--color-text-secondary:#6b6b6b;--color-text-tertiary:#9b9b9b;--color-success:#4caf50;--color-error:#f44336;--color-warning:#ff9800;--color-info:#2196f3;--border-color:#e0e0e0;--border-radius-sm:4px;--border-radius-md:8px;--border-radius-lg:12px;--border-radius-full:9999px;--spacing-xs:4px;--spacing-sm:8px;--spacing-md:16px;--spacing-lg:24px;--spacing-xl:32px;--spacing-2xl:48px;--spacing-3xl:64px;--font-size-xs:12px;--font-size-sm:14px;--font-size-base:16px;--font-size-lg:18px;--font-size-xl:24px;--font-size-2xl:32px;--font-size-3xl:48px;--font-weight-normal:400;--font-weight-medium:500;--font-weight-semibold:600;--font-weight-bold:700;--line-height-tight:1.2;--line-height-normal:1.5;--line-height-relaxed:1.75;--shadow-sm:0 1px 2px 0 #0000000d;--shadow-md:0 4px 6px -1px #0000001a;--shadow-lg:0 10px 15px -3px #0000001a;--shadow-xl:0 20px 25px -5px #0000001a;--transition-fast:.15s ease;--transition-base:.25s ease;--transition-slow:.35s ease;--z-dropdown:1000;--z-sticky:1020;--z-fixed:1030;--z-modal-backdrop:1040;--z-modal:1050;--z-popover:1060;--z-tooltip:1070}*{box-sizing:border-box;margin:0;padding:0}html,body{font-family:var(--font-geist-sans),-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;font-size:var(--font-size-base);line-height:var(--line-height-normal);color:var(--color-text-primary);background-color:var(--color-bg-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;overflow-x:hidden}a{color:inherit;transition:color var(--transition-base);text-decoration:none}a:hover{color:var(--color-accent)}.kontejner{max-width:1200px;padding:0 var(--spacing-md);margin:0 auto}@media (min-width:768px){.kontejner{padding:0 var(--spacing-lg)}}.karta{background-color:var(--color-bg-secondary);border-radius:var(--border-radius-md);padding:var(--spacing-lg);box-shadow:var(--shadow-md);transition:box-shadow var(--transition-base)}.karta:hover{box-shadow:var(--shadow-lg)}.tlacitko{padding:var(--spacing-sm)var(--spacing-lg);border-radius:var(--border-radius-md);font-weight:var(--font-weight-medium);cursor:pointer;transition:all var(--transition-base);font-size:var(--font-size-base);justify-content:center;align-items:center;gap:var(--spacing-sm);border:none;display:inline-flex}.tlacitko:disabled{opacity:.5;cursor:not-allowed}.tlacitko-primarni{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);color:#fff;background:#4a90e2e6;border:1px solid #ffffff4d;box-shadow:0 4px 16px #4a90e24d}.tlacitko-primarni:hover:not(:disabled){background:#4a90e2;transform:translateY(-1px);box-shadow:0 6px 20px #4a90e266}.tlacitko-sekundarni{color:var(--color-primary);border:1px solid var(--border-color);background-color:#0000}.tlacitko-sekundarni:hover:not(:disabled){background-color:var(--color-bg-tertiary)}.tlacitko-akcent{background-color:var(--color-accent);color:#fff}.tlacitko-akcent:hover:not(:disabled){opacity:.9}.vstup{width:100%;font-size:var(--font-size-base);color:var(--color-text-primary);-webkit-backdrop-filter:blur(10px);transition:all var(--transition-base);background:#ffffffb3;border:1px solid #ffffff80;border-radius:12px;padding:12px 16px}.vstup:focus{background:#ffffffd9;border-color:#4a90e2cc;outline:none;box-shadow:0 0 0 3px #4a90e233}.vstup::placeholder{color:#00000080}.popisek{color:#fff;text-transform:uppercase;letter-spacing:.05em;text-shadow:0 2px 8px #000,0 4px 16px #000c,0 1px 3px #000;margin-bottom:6px;font-size:12px;font-weight:700;display:block}.authLabel{color:#fff;text-transform:uppercase;letter-spacing:.05em;margin-bottom:6px;font-size:12px;font-weight:700;display:block}.chyba{color:var(--color-error);font-size:var(--font-size-sm);margin-top:var(--spacing-xs)}.uspech{color:var(--color-success);font-size:var(--font-size-sm);margin-top:var(--spacing-xs)}.nacitani{border:2px solid var(--color-bg-tertiary);border-top-color:var(--color-accent);border-radius:var(--border-radius-full);width:20px;height:20px;animation:.6s linear infinite rotace;display:inline-block}@keyframes rotace{to{transform:rotate(360deg)}}.grid{gap:var(--spacing-md);display:grid}.grid-2{grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}.grid-3{grid-template-columns:repeat(auto-fit,minmax(250px,1fr))}.flex{gap:var(--spacing-md);display:flex}.flex-center{justify-content:center;align-items:center;display:flex}.flex-between{justify-content:space-between;align-items:center;display:flex}.mt-sm{margin-top:var(--spacing-sm)}.mt-md{margin-top:var(--spacing-md)}.mt-lg{margin-top:var(--spacing-lg)}.mt-xl{margin-top:var(--spacing-xl)}.mb-sm{margin-bottom:var(--spacing-sm)}.mb-md{margin-bottom:var(--spacing-md)}.mb-lg{margin-bottom:var(--spacing-lg)}.mb-xl{margin-bottom:var(--spacing-xl)}.text-center{text-align:center}.text-secondary{color:var(--color-text-secondary)}.text-tertiary{color:var(--color-text-tertiary)}@media (max-width:768px){:root{--font-size-base:14px}.tlacitko{min-width:44px;min-height:44px}.vstup{min-height:44px;font-size:16px}.grid-2,.grid-3{grid-template-columns:1fr}}:focus-visible{outline:2px solid var(--color-accent);outline-offset:2px}@media (prefers-reduced-motion:reduce){*,:before,:after{transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}