*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}body{font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;background-color:#f4f6f8;color:#333}.navbar{display:flex;justify-content:space-between;align-items:center;background:#0d1b2a;color:#fff;padding:1rem 2rem;position:sticky;top:0;z-index:1000}.navbar .logo{font-size:1.5rem;font-weight:700}.navbar .nav-links{list-style:none;display:flex;gap:1.5rem}.navbar .nav-links li a{color:#fff;text-decoration:none;font-weight:500;transition:color .3s ease}.navbar .nav-links li a:hover{color:#00d1b2}.section{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:3rem;text-align:center;transition:all .3s ease-in-out}.home-section{background:linear-gradient(to right,#00c6ff,#0072ff);color:#fff;animation:fadeIn 1.5s ease}.about-section,.books-section{background-color:#e0eafc;animation:fadeIn 1.5s ease}.contact-section{background-color:#dff9fb;animation:fadeIn 1.5s ease}.contact-form{display:flex;flex-direction:column;gap:1.2rem;max-width:500px;margin:2rem auto}.contact-form input,.contact-form textarea{padding:1rem;border:1px solid #ccc;border-radius:8px;font-size:1rem;width:100%;transition:border-color .3s ease}.contact-form input:focus,.contact-form textarea:focus{outline:none;border-color:#00a8ff}.contact-form button{padding:.8rem 1.2rem;background-color:#0077b6;color:#fff;border:none;border-radius:8px;font-size:1rem;cursor:pointer;transition:background-color .3s ease}.contact-form button:hover{background-color:#023e8a}.footer{background-color:#0d1b2a;color:#fff;text-align:center;padding:1rem}@keyframes fadeIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@media (max-width: 768px){.navbar{flex-direction:column;align-items:flex-start}.navbar .nav-links{flex-direction:column;gap:.5rem;margin-top:.5rem}.contact-form{width:100%;padding:1rem}}.contact-form{background:#fff;padding:2rem 2.5rem;border-radius:16px;box-shadow:0 12px 30px #0000001a;max-width:600px;width:100%;margin:2rem auto;animation:slideUp 1s ease;transition:transform .3s ease,box-shadow .3s ease}.contact-form:hover{transform:translateY(-5px);box-shadow:0 16px 40px #00000026}.contact-form input,.contact-form textarea{background:#f8f9fa;border:none;border-radius:8px;padding:1rem 1.2rem;font-size:1rem;transition:all .3s ease;box-shadow:inset 0 2px 5px #0000000d}.contact-form input:focus,.contact-form textarea:focus{outline:none;background:#fff;box-shadow:0 0 0 3px #00a8ff44}.contact-form textarea{resize:vertical}.contact-form button{background:linear-gradient(to right,#0077b6,#00b4d8);color:#fff;border:none;padding:.9rem 1.5rem;border-radius:30px;font-size:1.1rem;font-weight:600;cursor:pointer;transition:background .3s ease,transform .2s ease}.contact-form button:hover{background:linear-gradient(to right,#00b4d8,#0077b6);transform:scale(1.05)}@keyframes slideUp{0%{opacity:0;transform:translateY(50px)}to{opacity:1;transform:translateY(0)}}.add-book-btn{margin-top:2rem;padding:.8rem 1.5rem;background:linear-gradient(90deg,#00c6ff,#0072ff);color:#fff;border:none;border-radius:30px;font-size:1.1rem;cursor:pointer;transition:transform .2s ease}.add-book-btn:hover{transform:scale(1.05)}.modal-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background:#0d1b2abf;display:flex;justify-content:center;align-items:center;z-index:999}.modal{background:#fff;padding:2rem 2.5rem;border-radius:16px;width:90%;max-width:500px;animation:slideUp .5s ease;box-shadow:0 12px 30px #0003}.modal h2{margin-bottom:1.2rem;font-size:1.8rem;color:#0077b6}.modal-form{display:flex;flex-direction:column;gap:1rem}.modal-form input{padding:.8rem;border:1px solid #ccc;border-radius:8px;font-size:1rem}.modal-buttons{display:flex;justify-content:flex-end;gap:1rem}.modal-buttons button{padding:.7rem 1.2rem;border:none;border-radius:8px;font-weight:600;cursor:pointer}.modal-buttons button[type=submit]{background:#00b4d8;color:#fff}.modal-buttons button[type=button]{background:#ccc;color:#333}@keyframes slideUp{0%{transform:translateY(30px);opacity:0}to{transform:translateY(0);opacity:1}}*{box-sizing:border-box;margin:0;padding:0}body{font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;background-color:#f7f9fc;color:#333}.section{padding:60px 20px;text-align:center}.navbar{display:flex;justify-content:space-between;padding:15px 25px;background:#1f1f1f;color:#fff;flex-wrap:wrap}.logo{font-size:1.5rem;font-weight:700}.nav-links{list-style:none;display:flex;gap:20px;flex-wrap:wrap}.nav-links li a{color:#fff;text-decoration:none;font-weight:500}.home-section .content{max-width:700px;margin:auto}.add-book-btn{margin-top:20px;padding:12px 22px;font-size:1rem;background:#28a745;color:#fff;border:none;border-radius:6px;cursor:pointer}.add-book-btn:hover{background-color:#218838}.modal-overlay{position:fixed;inset:0;background:#0009;display:flex;justify-content:center;align-items:center;z-index:999}.modal{background:#fff;padding:30px;border-radius:10px;width:90%;max-width:500px}.modal-form input{width:100%;padding:10px;margin-bottom:15px;border-radius:6px;border:1px solid #ccc}.modal-buttons{display:flex;justify-content:space-between}.modal-buttons button{padding:10px 20px;border:none;background:#007bff;color:#fff;border-radius:5px;cursor:pointer}.modal-buttons button[type=button]{background:#dc3545}.modal-buttons button:hover{opacity:.9}.card-container{display:flex;flex-wrap:wrap;justify-content:center;gap:25px;padding:20px}.feature-card{background:#fff;padding:25px;border-radius:12px;width:280px;box-shadow:0 10px 25px #00000014;transition:transform .3s ease,box-shadow .3s ease}.feature-card h3{font-size:1.2rem;margin-bottom:10px;color:#333}.feature-card p{font-size:.95rem;color:#666}.feature-card:hover{transform:translateY(-8px);box-shadow:0 15px 30px #0000001a}.contact-form input,.contact-form textarea{width:100%;margin:10px 0;padding:12px;border-radius:6px;border:1px solid #ccc}.contact-form button{padding:12px 20px;background:#007bff;color:#fff;border:none;border-radius:6px;cursor:pointer}.contact-form button:hover{background:#0056b3}.footer{background:#1f1f1f;color:#fff;text-align:center;padding:20px;margin-top:30px}@media (max-width: 768px){.nav-links{flex-direction:column;gap:10px}.feature-card{width:90%}}.book-card-container,.card-container{display:flex;flex-wrap:wrap;gap:30px;justify-content:center;padding:30px 0}.book-card,.feature-card{background:linear-gradient(145deg,#fff,#f2f2f2);border:1px solid #e0e0e0;box-shadow:0 8px 20px #00000014;border-radius:15px;padding:25px;width:280px;transition:transform .3s ease,box-shadow .3s ease;cursor:pointer;text-align:left}.book-card:hover,.feature-card:hover{transform:translateY(-8px);box-shadow:0 12px 30px #00000026}.book-card h3,.feature-card h3{font-size:1.3rem;margin-bottom:12px;color:#333}.book-card p,.feature-card p{font-size:.95rem;color:#555;margin:5px 0}.book-card button{margin-top:12px;padding:10px 20px;background:#007bff;color:#fff;border:none;font-size:.9rem;border-radius:8px;transition:background .2s ease}.book-card button:hover{background:#0056b3}.modal-buttons button,.modal button{padding:10px 20px;margin:5px;border:none;border-radius:6px;font-weight:700;font-size:14px;cursor:pointer;transition:all .3s ease}.modal-buttons button[type=submit]{background-color:#4caf50;color:#fff}.modal-buttons button[type=button],.modal button{background-color:#f44336;color:#fff}.modal-buttons button:hover,.modal button:hover{transform:scale(1.05);opacity:.9}.issue-book-btn{margin-top:12px;padding:10px 18px;background:linear-gradient(135deg,#3f87a6,#ebf8e1);border:none;border-radius:8px;color:#0a0a0a;font-size:14px;font-weight:600;cursor:pointer;transition:all .3s ease-in-out;box-shadow:0 4px 12px #00000026}.issue-book-btn:hover{background:linear-gradient(135deg,#1e90ff,#d4fc79);transform:translateY(-2px);box-shadow:0 6px 18px #0003}.issued-section{padding:40px 20px;background-color:#e0eafc}.issued-section .content{max-width:1200px;margin:0 auto}.issued-section h2{font-size:2rem;color:#2a3f66;margin-bottom:20px;text-align:center}.table-responsive{overflow-x:auto;border-radius:8px;box-shadow:0 0 12px #2a3f6626;background-color:#fff}.issued-table{width:100%;border-collapse:collapse;min-width:600px;animation:fadeIn .8s ease-in-out}.issued-table thead{background-color:#2a3f66;color:#fff}.issued-table th,.issued-table td{padding:12px 15px;text-align:center;border-bottom:1px solid #ddd;font-size:1rem;transition:background-color .3s ease}.issued-table tbody tr:hover{background-color:#f0f5ff;cursor:pointer}.status-issued{background-color:#d0e6ff;color:#1a3a72}.status-returned{background-color:#d4edda;color:#155724}@media (max-width: 768px){.issued-table th,.issued-table td{padding:10px 8px;font-size:.9rem}}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.return-btn{background-color:#e74c3c;border:none;color:#fff;padding:6px 14px;font-size:14px;border-radius:5px;cursor:pointer;transition:background-color .3s ease}.return-btn:hover{background-color:#c0392b}.return-confirm-btn{background-color:#27ae60;border:none;color:#fff;padding:8px 18px;font-size:16px;border-radius:6px;cursor:pointer;transition:background-color .3s ease;margin-right:10px}.return-confirm-btn:disabled{background-color:#95a5a6;cursor:not-allowed}.issue-btn{background-color:#2980b9;border:none;color:#fff;padding:6px 14px;font-size:14px;border-radius:5px;cursor:pointer;transition:background-color .3s ease;margin-left:10px}.issue-btn:disabled{background-color:#bdc3c7;cursor:not-allowed}.issue-btn:hover:not(:disabled){background-color:#1c5980}.contact-section{background:linear-gradient(to right,#0f2027,#203a43,#2c5364);color:#fff;padding:60px 20px;display:flex;justify-content:center;align-items:center;flex-direction:column}.contact-section h2{font-size:2.5rem;margin-bottom:30px;text-align:center;animation:fadeInDown 1s ease-in-out}.contact-form-horizontal{background:#ffffff0d;padding:30px;border-radius:15px;box-shadow:0 8px 20px #0000004d;width:100%;max-width:800px;animation:fadeInUp 1.2s ease-in-out;display:flex;flex-direction:column;gap:20px}.input-group{display:flex;flex-direction:row;gap:20px;flex-wrap:wrap}.contact-form-horizontal input,.contact-form-horizontal textarea{flex:1;padding:15px 20px;font-size:1rem;border:2px solid #fff;border-radius:10px;background:transparent;color:#fff;transition:all .3s ease-in-out}.contact-form-horizontal input:focus,.contact-form-horizontal textarea:focus{outline:none;background:#ffffff1a;border-color:#00c6ff}.contact-form-horizontal textarea{resize:none;width:100%}.contact-form-horizontal button{padding:15px;font-size:1.2rem;background:linear-gradient(to right,#00c6ff,#0072ff);color:#fff;border:none;border-radius:10px;cursor:pointer;transition:transform .3s ease,background .3s ease}.contact-form-horizontal button:hover{transform:scale(1.05);background:linear-gradient(to right,#0072ff,#00c6ff)}@keyframes fadeInDown{0%{opacity:0;transform:translateY(-30px)}to{opacity:1;transform:translateY(0)}}@keyframes fadeInUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}@media (max-width: 768px){.input-group{flex-direction:column}.contact-form-horizontal{padding:20px}.contact-section h2{font-size:2rem}.contact-form-horizontal button{font-size:1rem}}.home-section{background:linear-gradient(to right,#0f2027,#203a43,#2c5364);color:#fff;padding:100px 20px;text-align:center;display:flex;justify-content:center;align-items:center;flex-direction:column;animation:fadeInDown 1s ease-out}.home-content{background:#ffffff0d;padding:40px;border-radius:20px;max-width:800px;width:90%;box-shadow:0 8px 24px #0006;animation:fadeInUp 1.2s ease}.home-section h1{font-size:2.8rem;margin-bottom:20px;animation:fadeInDown .8s ease-in}.home-section p{font-size:1.2rem;margin-bottom:30px;color:#f1f1f1;animation:fadeIn 1s ease-in}.add-book-btn{padding:14px 28px;font-size:1.1rem;border:none;border-radius:12px;cursor:pointer;background:linear-gradient(to right,#6a11cb,#2575fc);color:#fff;transition:transform .3s ease,background .3s ease}.add-book-btn:hover{transform:scale(1.05);background:linear-gradient(to right,#2575fc,#6a11cb)}@media (max-width: 768px){.home-section{padding:80px 15px}.home-content{padding:25px}.home-section h1{font-size:2rem}.home-section p{font-size:1rem}.add-book-btn{width:100%;font-size:1rem}}@keyframes fadeInDown{0%{opacity:0;transform:translateY(-40px)}to{opacity:1;transform:translateY(0)}}@keyframes fadeInUp{0%{opacity:0;transform:translateY(40px)}to{opacity:1;transform:translateY(0)}}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.large-modal{max-width:90vw;max-height:80vh;overflow-y:auto}.modal table{width:100%;border-collapse:collapse;margin-top:20px}.modal th,.modal td{padding:10px;border-bottom:1px solid #ddd;text-align:left}.modal th{background-color:#333;color:#fff}.modal td{color:#eee}.taker-table{width:100%;border-collapse:collapse;margin-top:10px;background-color:#1a1a1a;color:#f0f0f0;font-size:14px}.taker-table th,.taker-table td{padding:10px;border:1px solid #333;text-align:left}.taker-table th{background-color:#292929}
