@import "https://fonts.googleapis.com/css2?family=Montserrat:wght@400;500;600;700&family=Coming+Soon&display=swap";:root{--hg-red:#c51624;--hg-red-hover:#a3121e;--hg-red-active:#97111c;--hg-red-dark:#660b13;--hg-red-tint:#fbeaec;--hg-teal:#20a9b9;--hg-teal-dark:#115860;--hg-teal-tint:#c1e7eb;--hg-green:#70a72c;--hg-green-tint:#e4f0d5;--hg-amber:#fbb800;--hg-amber-tint:#fdf4e3;--hg-orange:#f37321;--hg-gray-900:#212529;--hg-gray-800:#343a40;--hg-gray-700:#495057;--hg-gray-600:#6c757d;--hg-gray-500:#adb5bd;--hg-gray-400:#ced4da;--hg-gray-300:#dee2e6;--hg-gray-200:#e9ecef;--hg-gray-100:#f8f9fa;--hg-white:#fff;--color-bg:var(--hg-gray-100);--color-surface:var(--hg-white);--color-border:var(--hg-gray-300);--color-text:var(--hg-gray-900);--color-text-muted:var(--hg-gray-700);--color-primary:var(--hg-red);--color-primary-hover:var(--hg-red-hover);--color-primary-active:var(--hg-red-active);--color-accent:var(--hg-teal);--color-accent-dark:var(--hg-teal-dark);--color-success:var(--hg-green);--color-warning:var(--hg-amber);--color-danger:var(--hg-red);--radius-sm:4px;--radius-md:8px;--radius-lg:12px;--shadow-sm:0 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.75rem}.app-header__nav{order:3;justify-content:space-between;width:100%;margin-left:0}.app-header__username{display:none}.form__row{grid-template-columns:1fr}h1{font-size:1.4rem}}.filter-bar{grid-template-columns:2fr 1fr 1fr;gap:.75rem;margin-bottom:1.5rem;display:grid}.filter-bar input,.filter-bar select{border:1px solid var(--color-border);border-radius:var(--radius-sm);background:var(--color-surface);color:var(--color-text);padding:.5rem .75rem;transition:border-color .15s,box-shadow .15s}.filter-bar input:focus,.filter-bar select:focus{border-color:var(--color-primary);outline:none;box-shadow:0 0 0 3px #c5162426}.book-grid{grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:1rem;display:grid}.book-card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-md);color:var(--color-text);box-shadow:var(--shadow-sm);flex-direction:column;gap:.5rem;padding:1rem;transition:transform .12s,box-shadow .12s,border-color 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