:root{--mossen-black: #1E1E1E;--mossen-white: #FFFFFF;--mossen-yellow: #FFD700;--mossen-yellow-light: #FFFACD;--primary-color: var(--mossen-black);--primary-hover-color: #3a3a3a;--secondary-color: var(--mossen-yellow);--secondary-hover-color: #e6c300;--success-color: #28a745;--success-hover-color: #218838;--danger-color: #dc3545;--danger-hover-color: #c82333;--background-color: #F4F7FC;--text-color: #333333;--secondary-text-color: #6c757d;--border-color: #DEE2E6;--box-shadow: 0 4px 12px rgba(0, 0, 0, .08);--header-shadow: 0 2px 4px rgba(0, 0, 0, .05);--border-radius: 12px}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;margin:0;padding:0;background-color:var(--background-color);color:var(--text-color);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;line-height:1.6}#root{display:flex;flex-direction:column;min-height:100vh}h1,h2,h3,h4,h5,h6{color:var(--mossen-black);margin-top:0;font-weight:700;line-height:1.2}h1{text-align:center;margin-bottom:2rem;font-size:2.25rem}h2{font-size:1.75rem;margin-bottom:1.5rem}h3{font-size:1.25rem;margin-bottom:1rem}.form-container{display:flex;flex-direction:column;gap:1.5rem}.form-group{display:flex;flex-direction:column;gap:.5rem}label{font-weight:600;color:var(--secondary-text-color)}input[type=text],input[type=email],input[type=password],input[type=number],textarea{padding:.9rem 1rem;border:1px solid var(--border-color);border-radius:8px;font-size:1rem;background-color:var(--mossen-white);transition:border-color .2s,box-shadow .2s}input:focus,textarea:focus{outline:none;border-color:var(--mossen-yellow);box-shadow:0 0 0 3px #ffd7004d}textarea{resize:vertical;min-height:120px}.btn{padding:.9rem 1.5rem;border:none;border-radius:8px;cursor:pointer;font-size:1rem;font-weight:600;text-decoration:none;transition:all .2s ease-in-out;text-align:center;display:inline-block}.btn-primary{background-color:var(--mossen-black);color:var(--mossen-white)}.btn-primary:hover{background-color:var(--primary-hover-color);transform:translateY(-2px)}.btn-secondary{background-color:var(--mossen-white);color:var(--mossen-black);border:1px solid var(--border-color)}.btn-secondary:hover{background-color:#f8f9fa;border-color:#c6cace}.btn-success{background-color:var(--success-color);color:var(--mossen-white)}.btn-success:hover{background-color:var(--success-hover-color)}.btn-danger{background-color:var(--danger-color);color:var(--mossen-white)}.btn-danger:hover{background-color:var(--danger-hover-color)}.btn-block{display:block;width:100%}.page-container{width:100%;max-width:1200px;margin:0 auto;padding:2rem 1.5rem;flex-grow:1}@media(max-width:768px){h1{font-size:2rem;margin-bottom:1.5rem}h2{font-size:1.5rem}.page-container{padding:1.5rem 1rem}.btn{padding:.8rem 1.2rem;font-size:.95rem}}@media(max-width:480px){body{font-size:15px}h1{font-size:1.75rem}h2{font-size:1.4rem}.page-container{padding:1rem .75rem}.btn{width:100%;padding:.9rem}input,textarea,.btn{font-size:16px}}.layout{display:flex;flex-direction:column;min-height:100vh;position:relative}.layout.menu-open:before{content:"";position:fixed;inset:0;background:#00000080;z-index:999}.app-header{display:flex;justify-content:space-between;align-items:center;padding:1rem 1.5rem;background-color:var(--mossen-white);border-bottom:1px solid var(--border-color);box-shadow:var(--header-shadow);position:sticky;top:0;z-index:1000}.logo-container{display:flex;align-items:center;text-decoration:none}.logo{height:45px;margin-right:.75rem}.logo-text{font-size:1.1rem;font-weight:700;color:var(--mossen-black)}.main-nav{display:none;flex-direction:column;align-items:flex-start;background-color:var(--mossen-white);position:absolute;top:100%;left:0;right:0;padding-bottom:1rem;border-bottom:1px solid var(--border-color);box-shadow:0 10px 15px -3px #0000001a,0 4px 6px -2px #0000000d}.main-nav.is-open{display:flex}.main-nav a{color:var(--mossen-black);text-decoration:none;padding:1rem 1.5rem;font-weight:600;transition:all .2s ease;width:100%;text-align:left;border-bottom:1px solid var(--border-color)}.main-nav a:last-of-type{border-bottom:none}.main-nav a:hover,.main-nav a.active{background-color:var(--mossen-yellow-light);color:var(--mossen-black)}.menu-toggle{display:block;background:none;border:none;cursor:pointer;padding:0;z-index:1001}.menu-toggle .material-icons{font-size:2.25rem;color:var(--mossen-black)}.user-actions-desktop{display:none}.user-actions-mobile{display:flex;flex-direction:column;gap:.75rem;padding:1rem 1.5rem 0;border-top:1px solid var(--border-color);margin-top:1rem;width:100%}.user-actions-mobile .btn{width:100%;text-align:center;padding:.75rem 1rem}.main-content{flex:1}.app-footer{text-align:center;padding:1.5rem;background-color:var(--mossen-black);color:var(--mossen-white);font-size:.9rem}@media(min-width:768px){.layout.menu-open:before{display:none}.app-header{padding:1rem 2rem}.logo{height:50px}.logo-text{font-size:1.25rem}.main-nav{display:flex!important;flex-direction:row;align-items:center;position:static;background:none;box-shadow:none;border:none;padding:0}.main-nav a{width:auto;border:none;padding:.5rem 1.25rem;border-radius:8px}.menu-toggle,.user-actions-mobile{display:none}.user-actions-desktop{display:flex;align-items:center;gap:1rem}.user-actions-desktop .user-link{color:var(--mossen-black);font-weight:600;text-decoration:none;padding:.5rem;border-radius:8px;transition:background-color .2s}.user-actions-desktop .user-link:hover{background-color:var(--mossen-yellow-light)}.app-footer{padding:2rem}}.home-container{padding:0}.hero-section{display:flex;align-items:center;justify-content:space-between;background:var(--mossen-black);color:var(--mossen-white);padding:4rem 3rem;border-radius:var(--border-radius);overflow:hidden;position:relative}.hero-text h1{font-size:3.2rem;font-weight:800;margin-bottom:1rem;line-height:1.1;text-align:left;color:var(--mossen-white)}.hero-text h1 span{color:var(--mossen-yellow)}.hero-text p{font-size:1.1rem;max-width:500px;margin-bottom:2rem;color:#ffffffd9}.hero-buttons{display:flex;gap:1rem}.hero-image-container{flex-shrink:0;margin-left:2rem}.hero-image{width:250px;height:auto;animation:float 4s ease-in-out infinite}@keyframes float{0%{transform:translateY(0)}50%{transform:translateY(-15px)}to{transform:translateY(0)}}@media(max-width:992px){.hero-section{padding:3rem 2.5rem}.hero-text h1{font-size:2.8rem}.hero-image{width:220px}}@media(max-width:768px){.hero-section{flex-direction:column;text-align:center;padding:3rem 1.5rem}.hero-text h1{font-size:2.5rem;text-align:center}.hero-text p{max-width:100%}.hero-buttons{justify-content:center}.hero-image-container{margin-top:3rem;margin-left:0}.hero-image{width:180px}}@media(max-width:480px){.hero-buttons{flex-direction:column;align-items:center;width:100%}.hero-buttons .btn{width:100%;max-width:320px}}.auth-container{display:flex;justify-content:center;align-items:flex-start;padding-top:2rem;padding-bottom:2rem}.auth-form-wrapper{width:100%;max-width:440px;padding:2rem;background:var(--mossen-white);border-radius:var(--border-radius);box-shadow:var(--box-shadow)}.auth-form-wrapper h1{margin-bottom:2rem;color:var(--mossen-black)}.auth-form .form-group{margin-bottom:1.25rem}.btn-submit{margin-top:1.5rem}.auth-switch-text{text-align:center;margin-top:1.5rem;font-size:.95rem;color:var(--secondary-text-color)}.auth-switch-text a{color:var(--mossen-black);font-weight:600;text-decoration:none}.auth-switch-text a:hover{text-decoration:underline}@media(max-width:480px){.auth-container{padding-top:1rem;padding-bottom:1rem}.auth-form-wrapper{padding:1.5rem;box-shadow:none;border-radius:0;background:transparent}.auth-form-wrapper h1{font-size:1.75rem}}.modal-overlay{position:fixed;inset:0;background-color:#0009;display:flex;justify-content:center;align-items:center;z-index:1000}.modal-content{background:#fff;padding:25px;border-radius:8px;box-shadow:0 4px 15px #0003;text-align:center;max-width:400px;width:90%}.modal-content h3{margin-top:0}.modal-buttons{margin-top:20px;display:flex;justify-content:space-evenly}.modal-buttons button{padding:10px 20px;border:none;border-radius:5px;cursor:pointer;font-size:16px}.confirm-btn{background-color:#dc3545;color:#fff}.cancel-btn{background-color:#6c757d;color:#fff}.challenge-list{list-style:none;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:1.5rem}.challenge-item{background:var(--mossen-white);border-radius:var(--border-radius);box-shadow:var(--box-shadow);padding:1.5rem;display:flex;flex-direction:column;transition:transform .2s,box-shadow .2s}.challenge-item:hover{transform:translateY(-5px);box-shadow:0 10px 20px #0000001a}.challenge-header{display:flex;justify-content:space-between;align-items:flex-start;gap:1rem;margin-bottom:1rem}.challenge-header h3{margin:0;font-size:1.2rem;color:var(--mossen-black);text-align:left}.challenge-points{background-color:var(--mossen-yellow);color:var(--mossen-black);padding:6px 12px;border-radius:20px;font-weight:700;font-size:.9rem;flex-shrink:0;align-self:flex-start}.challenge-item p{flex-grow:1;color:#555;margin:.5rem 0 1.5rem}.challenge-actions{margin-top:auto;display:flex;gap:.5rem}.tabs-container{display:flex;justify-content:center;margin-bottom:2rem;background-color:#f0f2f5;padding:.4rem;border-radius:30px;box-shadow:inset 0 2px 4px #0000000f;max-width:500px;margin-left:auto;margin-right:auto}.tab-btn{flex:1;padding:.65rem 1rem;border:none;background-color:transparent;color:#666;font-size:.9rem;font-weight:600;cursor:pointer;transition:all .3s ease;border-radius:25px;text-align:center}.tab-btn.active{background-color:var(--mossen-yellow);color:var(--mossen-black);box-shadow:0 3px 6px #0000001a;transform:translateY(-1px)}.tab-btn:not(.active):hover{background-color:#e9ecef}.error-message{color:var(--danger-color);text-align:center;background:#f8d7da;padding:1rem;border-radius:var(--border-radius);border:1px solid #f5c6cb}.text-center{text-align:center}.empty-state-container{background-color:var(--mossen-white);padding:3rem 2rem;border-radius:var(--border-radius);text-align:center;box-shadow:var(--box-shadow)}@media(max-width:768px){.challenge-list{grid-template-columns:1fr;gap:1rem}}@media(max-width:480px){.tabs-container{width:100%;border-radius:12px}.tab-btn{font-size:.85rem;padding:.7rem .5rem}.challenge-actions{flex-direction:column}.challenge-actions .btn{width:100%}}.leaderboard-container{background:var(--mossen-white);border-radius:var(--border-radius);box-shadow:var(--box-shadow);overflow:hidden}.leaderboard-table{width:100%;border-collapse:collapse}.leaderboard-table th,.leaderboard-table td{padding:1rem 1.5rem;text-align:left;border-bottom:1px solid var(--border-color);white-space:nowrap}.leaderboard-table thead{background-color:#f8f9fa}.leaderboard-table th{font-weight:700;text-transform:uppercase;font-size:.75rem;letter-spacing:.5px;color:var(--secondary-text-color)}.leaderboard-table tbody tr:last-child td{border-bottom:none}.leaderboard-table .rank{width:60px;font-weight:700;font-size:1.1rem;text-align:center;vertical-align:middle}.ball-icon{width:32px;height:32px;display:inline-block;vertical-align:middle}.ball-icon.gold{color:gold}.ball-icon.silver{color:silver}.ball-icon.bronze{color:#cd7f32}.rank-number{font-size:1.1rem;font-weight:700;color:var(--secondary-text-color)}.leaderboard-table .player-name{font-weight:600}.leaderboard-table .points{font-weight:700;font-size:1.2rem;text-align:right;color:var(--mossen-black)}.empty-leaderboard{text-align:center;padding:3rem 1rem;color:var(--secondary-text-color)}@media(max-width:768px){.leaderboard-table th,.leaderboard-table td{padding:.9rem 1rem}.leaderboard-table .points{font-size:1.1rem}}@media(max-width:480px){.leaderboard-container{width:90%;margin:0 auto}.leaderboard-table td{white-space:normal}.leaderboard-table,.leaderboard-table tbody,.leaderboard-table tr{display:block}.leaderboard-table thead{display:none}.leaderboard-table tr{display:flex;align-items:center;justify-content:space-between;padding:.75rem 1rem;border-bottom:1px solid var(--border-color)}.leaderboard-table tbody tr:last-child{border-bottom:none}.leaderboard-table td{border:none;padding:0;display:flex;align-items:center}.leaderboard-table .rank{flex:0 0 50px;justify-content:center}.ball-icon{width:28px;height:28px}.leaderboard-table .player-name{flex:1 1 auto;padding:0 1rem;text-align:left}.leaderboard-table .points{flex:0 0 60px;justify-content:flex-end;font-weight:700;font-size:1.1rem}}.profile-grid{display:grid;grid-template-columns:1fr;gap:2rem}.profile-info-card,.profile-edit-card{background:var(--mossen-white);border-radius:var(--border-radius);box-shadow:var(--box-shadow);padding:2rem}.profile-info-card h3,.profile-edit-card h3{margin-top:0;margin-bottom:2rem;color:var(--mossen-black);font-size:1.5rem;border-bottom:1px solid var(--border-color);padding-bottom:1rem}.profile-info .info-item{display:flex;flex-direction:column;justify-content:space-between;margin-bottom:1rem;padding-bottom:1rem;border-bottom:1px solid #f0f2f5}.profile-info .info-item:last-child{border-bottom:none;margin-bottom:0}.profile-info .info-item strong{color:var(--secondary-text-color);font-weight:500;margin-bottom:.25rem}.profile-info .info-item span{font-weight:600;font-size:1.05rem}.success-message{color:var(--success-color);text-align:center;margin-top:1.5rem;font-weight:600;background-color:#e9f7ec;padding:1rem;border-radius:8px}.error-message{color:var(--danger-color);text-align:center;margin-top:1.5rem;font-weight:600;background-color:#fbebee;padding:1rem;border-radius:8px}@media(min-width:576px){.profile-info .info-item{flex-direction:row;align-items:center}.profile-info .info-item strong{margin-bottom:0}}@media(min-width:992px){.profile-grid{grid-template-columns:1fr 1fr;gap:2.5rem}.profile-info-card,.profile-edit-card{padding:2.5rem}}