*{box-sizing:border-box}body{font-family:Roboto,sans-serif;line-height:1.6;color:#333}.container{width:100%;max-width:1200px;margin:0 auto;padding:0 15px}.header{background:#000000e6;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);padding:1rem 0;position:fixed;top:0;left:0;right:0;z-index:1000;transition:all .3s ease}.logo{text-decoration:none}.sitename{color:#fff;font-size:1.8rem;font-weight:700;margin:0;background:linear-gradient(135deg,#667eea,#764ba2);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.page-title{padding:120px 0 60px;background-size:cover;background-position:center;background-repeat:no-repeat;color:#fff;position:relative;text-align:center}.page-title:before{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:#0009;z-index:1}.page-title .container{position:relative;z-index:2}.page-title h1{font-size:3rem;font-weight:700;margin-bottom:1rem;text-shadow:2px 2px 4px rgba(0,0,0,.5)}.page-title p{font-size:1.2rem;opacity:.9;max-width:600px;margin:0 auto}.speakers{padding:80px 0;background:linear-gradient(135deg,#f5f7fa,#c3cfe2)}.speaker-entry{margin-bottom:2rem}.speaker-profile{background:#fff;border-radius:15px;box-shadow:0 10px 30px #0000001a;overflow:hidden;transition:all .3s ease;height:100%}.speaker-profile:hover{transform:translateY(-10px);box-shadow:0 20px 40px #00000026}.speaker-photo{position:relative;overflow:hidden}.speaker-photo img{width:100%;height:280px;-o-object-fit:cover;object-fit:cover;transition:transform .3s ease}.speaker-profile:hover .speaker-photo img{transform:scale(1.05)}.speaker-info{padding:1.5rem 1rem 1rem;text-align:center}.speaker-info h4{margin:0;font-size:1.3rem;font-weight:600;color:#2c3e50}.speaker-details{padding:0 1rem 1.5rem;text-align:center}.speaker-summary{color:#666;margin-bottom:1.5rem;font-size:.95rem;line-height:1.5;min-height:3em}.profile-btn{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;padding:.8rem 1.8rem;border-radius:25px;cursor:pointer;transition:all .3s ease;font-weight:500;font-size:.9rem;text-transform:uppercase;letter-spacing:.5px}.profile-btn:hover:not(:disabled){transform:scale(1.05);box-shadow:0 8px 25px #667eea66}.profile-btn:disabled{opacity:.6;cursor:not-allowed}.footer{background:linear-gradient(135deg,#2c3e50,#34495e);color:#fff;padding:3rem 0 1rem}.footer-about .sitename{font-size:1.5rem;margin-bottom:1rem}.footer h4{color:#fff;margin-bottom:1rem;font-weight:600}.footer-links ul{list-style:none;padding:0}.footer-links li{margin-bottom:.5rem}.footer-links a{color:#bdc3c7;text-decoration:none;transition:color .3s ease}.footer-links a:hover{color:#667eea}.social-links a{display:inline-flex;align-items:center;justify-content:center;width:45px;height:45px;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border-radius:50%;margin-right:.5rem;text-decoration:none;transition:all .3s ease}.social-links a:hover{transform:translateY(-3px);box-shadow:0 5px 15px #667eea66}.scroll-top{position:fixed;bottom:20px;right:20px;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;width:50px;height:50px;border-radius:50%;text-decoration:none;transition:all .3s ease;z-index:1000;box-shadow:0 4px 15px #667eea4d}.scroll-top:hover{transform:translateY(-3px);box-shadow:0 6px 20px #667eea66;color:#fff}.modal-content{border-radius:15px;border:none;box-shadow:0 20px 40px #00000026}.modal-header{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border-radius:15px 15px 0 0}.btn-close{filter:brightness(0) invert(1)}.spinner-border{color:#667eea;width:3rem;height:3rem}.alert-danger{background:linear-gradient(135deg,#ff6b6b,#ee5a52);border:none;color:#fff;border-radius:10px}@media (max-width: 768px){.page-title{padding:100px 0 40px}.page-title h1{font-size:2rem}.page-title p{font-size:1rem}.speaker-entry{margin-bottom:1.5rem}.speakers{padding:60px 0}.footer{padding:2rem 0 1rem}.social-links a{width:40px;height:40px}}@media (max-width: 576px){.page-title h1{font-size:1.5rem}.speaker-info h4{font-size:1.1rem}.profile-btn{padding:.7rem 1.5rem;font-size:.8rem}}