:root{--primary:#2563eb;--primary-hover:#1d4ed8;--text-dark:#1f2937;--text-light:#4b5563;--bg-light:#f9fafb;--white:#fff}*,:before,:after{box-sizing:border-box}body{color:var(--text-dark);margin:0;padding:0;font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Noto Sans,Ubuntu,Cantarell,Helvetica Neue,sans-serif;line-height:1.6}.container{max-width:1200px;margin:0 auto;padding:0 20px}.btn{cursor:pointer;border:none;border-radius:8px;justify-content:center;align-items:center;gap:8px;padding:12px 24px;font-size:1rem;font-weight:600;text-decoration:none;transition:all .2s;display:inline-flex;position:relative;overflow:hidden}.btn.primary{background-color:var(--primary);color:var(--white)}.btn.primary:hover{background-color:var(--primary-hover);color:var(--white)}.btn.secondary{background-color:var(--white);color:var(--text-dark);border:1px solid #e5e7eb}.btn.secondary:hover{background-color:#f3f4f6}.btn.large{padding:16px 32px;font-size:1.25rem}.btn.full-width{width:100%}.btn.small{padding:8px 16px;font-size:14px}.btn:disabled,.btn.disabled{opacity:.9;cursor:wait;pointer-events:none}.btn:disabled:after,.btn.disabled:after{content:"";background:linear-gradient(90deg,rgba(255,255,255,0) 0%,rgba(255,255,255,.3) 50%,rgba(255,255,255,0) 100%);width:50%;height:100%;animation:1.5s infinite shine;position:absolute;top:0;left:-100%;transform:skew(-25deg)}.navbar{background-color:var(--white);z-index:50;border-bottom:1px solid #e5e7eb;height:70px;position:sticky;top:0}.navbar .nav-container{justify-content:flex-start;align-items:center;max-width:1200px;height:100%;margin:0 auto;padding:0 20px;display:flex}.navbar .brand{color:var(--text-dark);margin-right:auto;font-size:20px;font-weight:700;text-decoration:none}.navbar .brand:hover{color:var(--primary)}.navbar ul{align-items:center;margin:0;padding:0;list-style:none;display:flex}.navbar li{margin-left:2rem;font-size:15px;font-weight:500}.navbar a{color:var(--text-light);text-decoration:none;transition:color .2s}.navbar a:hover,.navbar a.active{color:var(--primary)}.hamburger{color:var(--text-dark);cursor:pointer;background:0 0;border:none;margin-left:auto;padding:5px;display:none}.hamburger line{transition:transform .3s ease-in-out,opacity .3s ease-in-out}.hamburger .line-top{transform-origin:12px 6px}.hamburger .line-mid{transform-origin:12px 12px}.hamburger .line-bot{transform-origin:12px 18px}.hamburger.open .line-top{transform:translateY(6px)rotate(45deg)}.hamburger.open .line-mid{opacity:0}.hamburger.open .line-bot{transform:translateY(-6px)rotate(-45deg)}@media (max-width:768px){.navbar .nav-container{flex-wrap:nowrap}.hamburger{display:flex}.navbar ul{z-index:49;background-color:var(--white);border-bottom:1px solid #e5e7eb;flex-direction:column;width:100%;padding:1rem 0;display:none;position:absolute;top:70px;left:0;right:0;box-shadow:0 10px 15px -3px rgba(0,0,0,.05)}.navbar ul.open{display:flex}.navbar li{text-align:center;width:100%;margin:0}.navbar a{width:100%;padding:12px 0;display:block}.navbar .btn.primary.small{width:auto;margin:10px 0;display:inline-block}}.auth-page{background-color:var(--bg-light);justify-content:center;align-items:center;min-height:80vh;padding:20px;display:flex}.auth-card{background:var(--white);border:1px solid #e5e7eb;border-radius:12px;width:100%;max-width:400px;padding:40px;box-shadow:0 4px 6px -1px rgba(0,0,0,.1)}.auth-card.wide{max-width:450px}.auth-card .header{text-align:center;margin-bottom:30px}.auth-card h1{color:var(--text-dark);margin:0 0 12px;font-size:1.75rem}.auth-card p{color:var(--text-light);margin:0}.auth-card .form-group{margin-bottom:20px}.auth-card label{margin-bottom:8px;font-size:14px;font-weight:500;display:block}.auth-card input{border:1px solid #d1d5db;border-radius:6px;width:100%;padding:10px 12px;font-size:16px}.auth-card input:focus{border-color:var(--primary);outline:none;box-shadow:0 0 0 3px rgba(37,99,235,.1)}.auth-card .row{gap:15px;display:flex}.spinner{border:2px solid rgba(255,255,255,.4);border-top-color:#fff;border-radius:50%;width:16px;height:16px;animation:.8s linear infinite spin;display:inline-block}@keyframes shine{0%{left:-100%}to{left:200%}}@keyframes spin{to{transform:rotate(360deg)}}