:root{--color-bg:#fdf8f0;--color-surface:#fffdf9;--color-text:#2c2416;--color-text-muted:#6b5e4f;--color-navy:#1b3a5c;--color-red:#c0392b;--color-red-light:#e74c3c;--color-gold:#b8860b;--color-gold-light:#f5e6c8;--color-border:#d4c5a9;--color-border-stripe:repeating-linear-gradient(-45deg, var(--color-navy) 0px, var(--color-navy) 10px, white 10px, white 14px, var(--color-red) 14px, var(--color-red) 24px, white 24px, white 28px);--color-success:#2d6a4f;--color-error:#c0392b;--radius:6px;--radius-sm:4px;--shadow:0 2px 6px #2c241614;--shadow-hover:0 4px 12px #2c241624;--max-width:1080px;--font-display:"Courier New", "Courier Prime", monospace;--font-body:"Courier New", "Courier Prime", monospace;--tap-min:44px}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-body);background:var(--color-bg);color:var(--color-text);-webkit-font-smoothing:antialiased;background-image:radial-gradient(at 20%,#b8860b08 0%,#0000 50%),radial-gradient(at 80% 20%,#1b3a5c05 0%,#0000 50%);font-size:18px;line-height:1.7}.app{max-width:var(--max-width);min-height:100vh;margin:0 auto;padding:2.5rem 2rem}.typewriter-key,.mood-btn,.apply-btn,.bookmark-btn,.reset-btn,.file-input-label,.buy-link{transition:transform 60ms ease-out,box-shadow 60ms ease-out,background .15s,color .15s,border-color .15s;position:relative;box-shadow:0 4px #2c241640}.typewriter-key:active:not(:disabled),.mood-btn:active:not(:disabled),.apply-btn:active:not(:disabled),.bookmark-btn:active:not(:disabled),.reset-btn:active:not(:disabled),.file-input-label:active,.buy-link:active{transform:translateY(4px);box-shadow:0 0 #2c241640}.tab-nav button{transition:transform 60ms ease-out,color .15s,border-color .15s;position:relative}.tab-nav button:active{transform:translateY(2px)}.airmail-border{background:var(--color-border-stripe);border-radius:2px;height:12px;margin-bottom:1.5rem}.app-header{background:var(--color-navy);justify-content:space-between;align-items:center;margin-bottom:1.5rem;margin-left:-2rem;margin-right:-2rem;padding:1.5rem 2rem;display:flex;position:relative}.app-header:before,.app-header:after{content:"";background:var(--color-border-stripe);height:12px;position:absolute;left:0;right:0}.app-header:before{top:0}.app-header:after{bottom:0}.app-brand{align-items:center;gap:1rem;display:flex}.app-logo{width:144px;height:144px}.app-header h1{font-family:var(--font-display);color:var(--color-bg);letter-spacing:.02em;font-size:3rem;font-weight:400}.app-header .subtitle{color:var(--color-bg);font-family:var(--font-display);margin:-.25rem 0 0;font-size:1.1rem;font-style:normal}.subtitle{color:var(--color-text-muted);margin-bottom:2.5rem;font-size:1.1rem;font-style:italic}.reset-btn{font-family:var(--font-display);border:2px solid var(--color-gold-light);min-height:var(--tap-min);border-radius:var(--radius-sm);cursor:pointer;color:var(--color-gold-light);background:0 0;padding:.6rem 1.25rem;font-size:1rem}.reset-btn:hover{color:#fff;border-color:#fff}.tab-nav{border-bottom:3px solid var(--color-border);gap:0;margin-bottom:2.5rem;display:flex}.tab-nav button{font-family:var(--font-display);min-height:var(--tap-min);cursor:pointer;color:var(--color-text-muted);background:0 0;border:none;border-bottom:3px solid #0000;margin-bottom:-3px;padding:1rem 1.5rem;font-size:1.1rem}.tab-nav button.active,.tab-nav button:hover{color:var(--color-navy);border-bottom-color:var(--color-red)}.upload-section{text-align:center;max-width:620px;margin:.5rem auto .75rem}.upload-instructions{margin-bottom:.5rem}.upload-instructions h2{font-family:var(--font-display);color:var(--color-navy);margin-bottom:1rem;font-size:2rem;font-weight:400}.upload-instructions p{color:var(--color-text-muted);font-size:1.05rem}.upload-instructions details{text-align:left;background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);margin-top:1.25rem;padding:1.25rem 1.5rem}.upload-instructions details summary{cursor:pointer;color:var(--color-navy);min-height:var(--tap-min);align-items:center;font-size:1rem;font-weight:700;display:flex}.upload-instructions details ol{margin-top:1rem;padding-left:1.5rem}.upload-instructions details li{margin-bottom:.75rem;font-size:1rem;line-height:1.6}.upload-instructions details a{color:var(--color-navy);text-decoration:underline}.po-box{background:var(--color-navy);border-radius:var(--radius);cursor:pointer;text-align:center;border:3px solid #0f2740;padding:0;transition:all .2s;position:relative;overflow:hidden}.po-box--open{border-color:var(--color-success)}.po-box__number-plate{background:#0f2740;border-bottom:2px solid #b8860b;padding:.75rem 1.5rem}.po-box__number{font-family:var(--font-display);color:var(--color-gold-light);letter-spacing:.1em;font-size:1.1rem}.po-box__slot{padding:1.5rem 2rem}.po-box__slot-opening{border-radius:var(--radius-sm);color:#8ab4d4;font-family:var(--font-display);background:#0f2740;border:2px solid #2a5a8a;padding:1rem 2rem;font-size:1rem;transition:all .2s;animation:3s ease-in-out infinite slot-pulse}@keyframes slot-pulse{0%,to{border-color:#2a5a8a}50%{border-color:#4a8aba}}.po-box__slot--open .po-box__slot-opening{background:var(--color-success);border-color:var(--color-success);color:#fff;animation:none}.po-box__envelope{background:var(--color-bg);border:2px solid var(--color-border);border-radius:3px;justify-content:center;align-items:center;width:120px;height:80px;margin:-.5rem auto 1rem;transition:transform .3s;animation:2.5s ease-in-out infinite envelope-float;display:flex;position:relative}.po-box__envelope--inserting{animation:.4s ease-in forwards envelope-insert;transform:translateY(-20px)scale(.9)}@keyframes envelope-float{0%,to{transform:translateY(0)}50%{transform:translateY(-6px)}}@keyframes envelope-insert{0%{opacity:1;transform:translateY(0)scale(1)}60%{opacity:1;transform:translateY(-15px)scale(.95)}to{opacity:0;transform:translateY(30px)scale(.8)}}.po-box__envelope-stripes{background:var(--color-border-stripe);height:8px;position:absolute;top:0;left:0;right:0}.po-box__envelope-label{font-family:var(--font-display);color:var(--color-text-muted);margin-top:.5rem;font-size:.9rem}.po-box__lock{background:#0f2740;border-top:2px solid #b8860b;flex-wrap:wrap;justify-content:center;gap:.75rem;padding:1rem 1.5rem;display:flex}.goodreads-btn{font-family:var(--font-display);background:var(--color-surface);color:var(--color-navy);min-height:var(--tap-min);border-radius:var(--radius-sm);cursor:pointer;border:2px solid var(--color-border);padding:.75rem 2rem;font-size:1.1rem;text-decoration:none;transition:transform 60ms ease-out,box-shadow 60ms ease-out;display:inline-block;box-shadow:0 4px #2c241640}.goodreads-btn:active{transform:translateY(4px);box-shadow:0 0 #2c241640}.goodreads-btn:hover{background:var(--color-gold-light)}.po-box__loading{padding:3rem 2rem}.po-box__loading p{color:var(--color-gold-light)}.file-input-label{font-family:var(--font-display);background:var(--color-gold);color:#fff;min-height:var(--tap-min);border-radius:var(--radius-sm);cursor:pointer;border:2px solid var(--color-gold);padding:.75rem 2rem;font-size:1.1rem;display:inline-block}.file-input-label:hover{opacity:.9}.file-input-hidden{clip:rect(0, 0, 0, 0);width:1px;height:1px;position:absolute;overflow:hidden}.export-help{text-align:left;background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);margin-top:2rem;padding:1.25rem 1.5rem}.export-help summary{cursor:pointer;color:var(--color-navy);min-height:var(--tap-min);align-items:center;font-size:1rem;font-weight:700;display:flex}.export-help ol{margin-top:1rem;padding-left:1.5rem}.export-help li{margin-bottom:.75rem;font-size:1rem;line-height:1.6}.export-help a{color:var(--color-navy);text-decoration:underline}.loading-state,.loading-recs{text-align:center;padding:3rem}.loading-state p,.loading-recs p{font-size:1.05rem}.spinner{border:4px solid var(--color-border);border-top-color:var(--color-red);border-radius:50%;width:40px;height:40px;margin:0 auto 1.25rem;animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.mood-filter{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);margin-bottom:2.5rem;padding:2rem;position:relative}.mood-filter:before{content:"";background:var(--color-border-stripe);border-radius:var(--radius) var(--radius) 0 0;height:5px;position:absolute;top:0;left:0;right:0}.mood-filter h3{font-family:var(--font-display);color:var(--color-navy);margin-bottom:1.25rem;font-size:1.4rem;font-weight:400}.mood-buttons{flex-wrap:wrap;gap:.75rem;margin-bottom:1.5rem;display:flex}.mood-btn{font-family:var(--font-display);min-height:var(--tap-min);border:2px solid var(--color-border);background:var(--color-surface);cursor:pointer;border-radius:2rem;align-items:center;gap:.5rem;padding:.7rem 1.25rem;font-size:1rem;display:flex}.mood-btn:hover{border-color:var(--color-navy);background:var(--color-gold-light)}.mood-btn.active{background:var(--color-navy);color:#fff;border-color:var(--color-navy)}.mood-emoji{font-size:1.3rem}.filter-options{margin-bottom:1.5rem}.filter-group label{color:var(--color-text-muted);text-transform:uppercase;letter-spacing:.04em;margin-bottom:.4rem;font-size:.9rem;font-weight:700;display:block}.filter-group select{font-family:var(--font-body);min-height:var(--tap-min);border:2px solid var(--color-border);border-radius:var(--radius-sm);background:#fff;width:100%;max-width:280px;padding:.6rem 1rem;font-size:1rem}.apply-btn{font-family:var(--font-display);background:var(--color-red);color:#fff;border:2px solid var(--color-red);min-height:var(--tap-min);border-radius:var(--radius-sm);cursor:pointer;padding:.8rem 2rem;font-size:1.15rem}.apply-btn:hover:not(:disabled){opacity:.9}.apply-btn:disabled{opacity:.6;cursor:not-allowed}.rec-grid{grid-template-columns:repeat(auto-fill,minmax(340px,1fr));gap:1.75rem;display:grid}.rec-card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);box-shadow:var(--shadow);flex-direction:row;transition:box-shadow .2s;display:flex;overflow:hidden}.rec-card:hover{box-shadow:var(--shadow-hover)}.rec-cover{background:var(--color-gold-light);flex-shrink:0;justify-content:center;align-items:center;width:120px;min-height:200px;display:flex;overflow:hidden}.rec-cover img{object-fit:cover;width:100%;height:100%}.rec-cover-placeholder{opacity:.3;font-size:3rem}.rec-details{flex-direction:column;flex:1;min-width:0;padding:1.25rem 1.5rem;display:flex}.rec-title{font-family:var(--font-display);color:var(--color-navy);margin-bottom:.3rem;font-size:1.15rem;font-weight:400;line-height:1.3}.rec-author{color:var(--color-text-muted);margin-bottom:.6rem;font-size:.95rem;font-style:italic}.rec-reason{color:var(--color-text-muted);flex:1;margin-bottom:.85rem;font-size:.9rem}.rec-meta{flex-wrap:wrap;gap:.6rem;margin-bottom:.85rem;display:flex}.meta-badge{background:var(--color-gold-light);color:var(--color-gold);text-transform:uppercase;letter-spacing:.03em;border-radius:3px;padding:.3rem .6rem;font-size:.8rem;font-weight:700}.buy-links{flex-wrap:wrap;gap:.5rem;margin-bottom:1rem;display:flex}.buy-link{border-radius:var(--radius-sm);min-height:36px;font-size:.8rem;font-family:var(--font-display);color:#fff;letter-spacing:.02em;border:2px solid #0000;align-items:center;gap:.35rem;padding:.4rem .8rem;font-weight:400;text-decoration:none;display:inline-flex}.buy-link:hover{opacity:.85}.buy-link--amazon{background:#232f3e;border-color:#232f3e}.buy-link--kindle{background:#1a8cff;border-color:#1a8cff}.buy-link--audible{color:#232f3e;background:#f7991c;border-color:#f7991c}.buy-link--bookshop{background:#00856f;border-color:#00856f}.buy-link--library{background:var(--color-surface);border-color:var(--color-border);color:var(--color-navy)}.buy-link--library:hover{background:var(--color-gold-light)}.bookmark-btn{font-family:var(--font-display);min-height:var(--tap-min);border:2px solid var(--color-border);border-radius:var(--radius-sm);cursor:pointer;background:#fff;align-self:flex-start;padding:.6rem 1.1rem;font-size:.95rem}.bookmark-btn:hover{border-color:var(--color-navy)}.bookmark-btn.saved{background:var(--color-success);color:#fff;border-color:var(--color-success)}.saved-books{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);padding:2rem}.saved-books.empty{text-align:center;color:var(--color-text-muted);padding:4rem 2rem;font-size:1.05rem;font-style:italic}.saved-header{justify-content:space-between;align-items:center;margin-bottom:1.25rem;display:flex}.saved-header h3{font-family:var(--font-display);color:var(--color-navy);font-size:1.3rem;font-weight:400}.clear-all-btn{font-family:var(--font-display);color:var(--color-error);cursor:pointer;min-height:var(--tap-min);background:0 0;border:none;padding:.5rem;font-size:1rem}.saved-list{flex-direction:column;gap:1rem;display:flex}.saved-item{border:1px solid var(--color-border);border-radius:var(--radius-sm);background:var(--color-bg);align-items:center;gap:1.25rem;padding:1rem;display:flex}.saved-item-cover{background:var(--color-gold-light);border-radius:3px;flex-shrink:0;justify-content:center;align-items:center;width:48px;height:68px;display:flex;overflow:hidden}.saved-item-cover img{object-fit:cover;width:100%;height:100%}.saved-cover-placeholder{opacity:.4;font-size:1.4rem}.saved-item-info{flex-direction:column;flex:1;gap:.2rem;min-width:0;display:flex}.saved-item-info strong{font-family:var(--font-display);white-space:nowrap;text-overflow:ellipsis;color:var(--color-navy);font-size:1.05rem;font-weight:400;overflow:hidden}.saved-item-info span{color:var(--color-text-muted);font-size:.9rem}.mood-tag{background:var(--color-gold-light);color:var(--color-gold);text-transform:uppercase;letter-spacing:.03em;border-radius:2rem;width:fit-content;padding:.2rem .6rem;font-size:.75rem;font-weight:700;display:inline-block}.remove-btn{color:var(--color-text-muted);cursor:pointer;min-width:var(--tap-min);min-height:var(--tap-min);background:0 0;border:none;justify-content:center;align-items:center;font-size:1.5rem;display:flex}.remove-btn:hover{color:var(--color-error)}.profile-summary{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);padding:2rem;position:relative}.profile-summary:before{content:"";background:var(--color-border-stripe);border-radius:var(--radius) var(--radius) 0 0;height:5px;position:absolute;top:0;left:0;right:0}.profile-summary h2{font-family:var(--font-display);color:var(--color-navy);margin-bottom:1.5rem;font-size:1.6rem;font-weight:400}.stats-grid{grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:1.25rem;margin-bottom:2rem;display:grid}.stat-card{text-align:center;background:var(--color-bg);border-radius:var(--radius-sm);border:1px solid var(--color-border);padding:1.25rem}.stat-number{font-family:var(--font-display);color:var(--color-red);font-size:2.25rem;display:block}.stat-label{color:var(--color-text-muted);text-transform:uppercase;letter-spacing:.04em;margin-top:.25rem;font-size:.85rem;font-weight:700}.profile-section{margin-bottom:2rem}.profile-section h3{font-family:var(--font-display);color:var(--color-navy);margin-bottom:1rem;font-size:1.2rem;font-weight:400}.author-tags{flex-wrap:wrap;gap:.6rem;display:flex}.tag{background:var(--color-bg);border:1px solid var(--color-border);border-radius:2rem;padding:.5rem 1rem;font-size:.95rem}.tag-rating{color:var(--color-gold);font-size:.85rem;font-weight:700}.genre-tag{background:var(--color-gold-light);color:var(--color-gold);border-color:#0000;font-weight:700}.rating-bars{max-width:450px}.rating-bar-row{align-items:center;gap:.75rem;margin-bottom:.6rem;display:flex}.rating-label{font-family:var(--font-display);text-align:right;width:2.5rem;color:var(--color-text-muted);font-size:1rem}.rating-bar-track{background:var(--color-bg);border:1px solid var(--color-border);border-radius:3px;flex:1;height:16px;overflow:hidden}.rating-bar-fill{background:var(--color-red);border-radius:3px;height:100%;transition:width .3s}.rating-count{font-family:var(--font-display);color:var(--color-text-muted);width:2.5rem;font-size:1rem}.error-message{border-radius:var(--radius-sm);color:var(--color-error);background:#fdf2f2;border:1px solid #e6a0a0;margin-bottom:1.75rem;padding:1.25rem;font-size:1rem}.error-message button{color:var(--color-error);cursor:pointer;min-height:var(--tap-min);background:0 0;border:none;margin-top:.5rem;font-size:.95rem;text-decoration:underline}.no-results{text-align:center;color:var(--color-text-muted);padding:3rem;font-size:1.05rem;font-style:italic}.personalize-hint{background:var(--color-gold-light);border:1px solid var(--color-border);border-radius:var(--radius);color:var(--color-text);margin-bottom:1.5rem;padding:1rem 1.25rem;font-size:.95rem}.link-btn{color:var(--color-navy);cursor:pointer;font-weight:700;font-size:inherit;background:0 0;border:none;padding:0;font-family:inherit;text-decoration:underline}.affiliate-disclosure{color:var(--color-text-muted);text-align:center;border-top:none;margin-top:3rem;padding-top:1.25rem;font-size:.85rem;font-style:italic}.airmail-border-bottom{background:var(--color-border-stripe);border-radius:2px;height:12px;margin-top:.75rem}@media (width<=700px){.app{padding:1.5rem 1.25rem}.app-header h1{font-size:2.25rem}.rec-grid{grid-template-columns:1fr}.rec-card{flex-direction:column}.rec-cover{width:100%;height:180px;min-height:auto}.stats-grid{grid-template-columns:repeat(2,1fr)}.mood-buttons{gap:.5rem}.tab-nav button{padding:1rem;font-size:1rem}}