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#D6491A);text-decoration:none;font-weight:600;transition:color .2s ease}.auth-link:hover{color:var(--color-accent-orange-dark, #B8401A);text-decoration:underline}.password-strength{margin-top:.75rem}.strength-bar{height:4px;background:#e8e2d5;border-radius:2px;overflow:hidden;margin-bottom:.5rem}.strength-fill{height:100%;transition:all .3s ease;border-radius:2px}.strength-fill.strength-1{background:linear-gradient(90deg,#d6491a,#b8401a)}.strength-fill.strength-2{background:linear-gradient(90deg,#c9a961,#d4b86a)}.strength-fill.strength-3{background:linear-gradient(90deg,#48a965,#2d8a4e)}.strength-label{font-size:.85rem;font-weight:600}.strength-fill.strength-1+.strength-label{color:#d6491a}.strength-fill.strength-2+.strength-label{color:#c9a961}.strength-fill.strength-3+.strength-label{color:#2d8a4e}.success-message{text-align:center;padding:2rem 0}.success-message h2{font-size:1.75rem;color:var(--color-vintage-leather, #382110);margin:0 0 .5rem;font-family:var(--font-serif, "Merriweather", Georgia, serif)}.success-message p{color:var(--color-ink-light, #767676);font-size:1rem}@media(max-width:600px){.auth-page{padding:1rem}.auth-form{padding:2rem 1.5rem}.auth-title{font-size:1.75rem}.auth-page-header{margin-bottom:1.5rem}}.add-book-page{min-height:100vh;background:linear-gradient(135deg,#382110,#5c4033,#4a3728);display:flex;align-items:flex-start;justify-content:center;padding:2rem}.add-book-container{width:100%;max-width:700px;padding-top:2rem}.add-book-header{margin-bottom:2rem}.add-book-back-link{display:inline-flex;align-items:center;gap:.5rem;color:#fff;text-decoration:none;font-size:.95rem;font-weight:500;padding:.5rem 1rem;background:#ffffff1a;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:12px;transition:all .3s ease}.add-book-back-link:hover{background:#fff3;transform:translate(-4px)}.back-arrow{font-size:1.2rem;transition:transform .3s ease}.add-book-back-link:hover .back-arrow{transform:translate(-4px)}.add-book-form-wrapper{background:linear-gradient(180deg,#fff8f0,#f9f7f4);border-radius:24px;border:2px solid #E8E2D5;box-shadow:0 20px 60px #38211059;animation:slideUp .5s ease}@keyframes slideUp{0%{transform:translateY(30px);opacity:0}to{transform:translateY(0);opacity:1}}.add-book-form{padding:2.5rem}.add-book-title{font-size:2rem;font-weight:700;color:var(--color-vintage-leather, #382110);margin:0 0 .5rem;text-align:center;font-family:var(--font-serif, "Merriweather", Georgia, serif)}.add-book-subtitle{font-size:1rem;color:var(--color-ink-light, #767676);margin:0 0 2rem;text-align:center}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:1rem;margin-bottom:1rem}.form-row.three-cols{grid-template-columns:1fr 1fr 1fr}.form-group,.form-group.full-width{margin-bottom:1rem}.form-group label{display:block;font-size:.9rem;font-weight:600;color:var(--color-vintage-leather, #382110);margin-bottom:.5rem}.form-group input,.form-group textarea{width:100%;padding:.875rem 1rem;font-size:1rem;border:2px solid #E8E2D5;border-radius:12px;transition:all .3s ease;background:#f8f9fa;font-family:inherit}.form-group textarea{resize:vertical;min-height:100px}.form-group input:focus,.form-group textarea:focus{outline:none;border-color:var(--color-accent-orange, #8B3A3A);background:#fff;box-shadow:0 0 0 4px #8b3a3a1a}.form-group input:disabled,.form-group textarea:disabled{opacity:.6;cursor:not-allowed}.add-book-error{background:linear-gradient(135deg,#8b3a3a,#6d2c2c);color:#fff;padding:1rem;border-radius:12px;margin-bottom:1.5rem;display:flex;align-items:center;gap:.5rem;font-size:.9rem;box-shadow:0 4px 12px #8b3a3a40}.error-icon{font-size:1.2rem}.add-book-submit-btn{width:100%;padding:1rem;font-size:1rem;font-weight:600;color:#fff;background:linear-gradient(135deg,#382110,#5c4033);border:none;border-radius:12px;cursor:pointer;transition:all .3s ease;display:flex;align-items:center;justify-content:center;gap:.5rem;box-shadow:0 4px 15px #3821104d;margin-top:1rem}.add-book-submit-btn:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 8px 20px #38211066}.add-book-submit-btn:active:not(:disabled){transform:translateY(0)}.add-book-submit-btn:disabled{opacity:.7;cursor:not-allowed}.btn-icon{font-size:1.2rem}.loading-spinner{animation:spin 1s linear infinite}.add-book-success{padding:3rem;text-align:center}.success-icon{font-size:4rem;display:block;margin-bottom:1rem}.add-book-success h2{font-size:1.75rem;color:var(--color-vintage-leather, #382110);margin:0 0 .5rem;font-family:var(--font-serif, "Merriweather", Georgia, serif)}.add-book-success p{color:var(--color-ink-light, #767676);font-size:1rem;margin:0 0 2rem}.add-another-btn{padding:.875rem 2rem;font-size:1rem;font-weight:600;color:#fff;background:linear-gradient(135deg,#382110,#5c4033);border:none;border-radius:12px;cursor:pointer;transition:all .3s ease;box-shadow:0 4px 15px #3821104d}.add-another-btn:hover{transform:translateY(-2px);box-shadow:0 8px 20px #38211066}.add-book-loading{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:50vh;color:#fff}.loading-spinner-large{font-size:3rem;animation:spin 1.5s linear infinite}.add-book-loading p{margin-top:1rem;font-size:1.1rem}@media(max-width:600px){.add-book-page{padding:1rem}.add-book-container{padding-top:1rem}.add-book-form{padding:1.5rem}.add-book-title{font-size:1.5rem}.form-row,.form-row.three-cols{grid-template-columns:1fr}.add-book-header{margin-bottom:1.5rem}}.app{min-height:100vh;background:var(--color-parchment-dark)}.app-container{max-width:1200px;margin:0 auto}.app-header{background:var(--color-parchment);border-bottom:1px solid var(--color-parchment-cream);padding:2rem;margin-bottom:1rem;text-align:center}.app-title{font-size:2rem;font-weight:700;color:var(--color-vintage-leather);margin:0 0 .5rem;display:flex;align-items:center;justify-content:center;gap:.75rem;font-family:var(--font-serif)}.title-icon{font-size:2rem}.app-subtitle{font-size:1rem;color:var(--color-ink-light);margin:0;font-weight:400;font-family:var(--font-sans)}.results-header{margin:0 2rem 1.5rem}.results-title{font-size:1.5rem;font-weight:700;color:var(--color-vintage-leather);margin:0;font-family:var(--font-serif)}.books-grid{display:flex;flex-direction:column;gap:1.5rem;padding:0 2rem 2rem}.error-message{background:#fff3cd;border:1px solid #FFC107;border-radius:var(--radius-vintage);padding:1rem 1.5rem;margin:2rem;display:flex;align-items:center;gap:1rem;color:#856404}.error-icon{font-size:1.5rem;flex-shrink:0}.loading-container{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:4rem 2rem}.loading-spinner-large{font-size:3rem;animation:spin 1.5s linear infinite;color:var(--color-accent-orange)}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.loading-text{font-size:1.1rem;color:var(--color-ink-light);margin-top:1rem}.no-results{text-align:center;padding:4rem 2rem}.no-results-icon{font-size:3rem;display:block;margin-bottom:1rem}.no-results p{font-size:1.1rem;color:var(--color-ink-light);margin:0}.welcome-message{text-align:center;padding:6rem 2rem;background:var(--color-parchment-light);margin:2rem;border-radius:var(--radius-vintage);box-shadow:var(--shadow-card);position:relative;overflow:hidden;background-image:url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23382110' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E")}.welcome-icon{font-size:4rem;margin-bottom:1.5rem}.welcome-message h2{font-size:2rem;font-weight:700;color:var(--color-vintage-leather);margin:0 0 1rem;font-family:var(--font-serif)}.welcome-message p{font-size:1.1rem;color:var(--color-ink-light);margin:0}@media(max-width:768px){.app-header{padding:1rem}.app-title,.title-icon{font-size:1.5rem}.app-subtitle{font-size:.9rem}.books-grid{padding:0 1rem 2rem;gap:1rem}.results-header{margin:0 1rem 1rem}.welcome-message{padding:3rem 1rem;margin:1rem}.welcome-message h2{font-size:1.5rem}}