:root{--primary-color:#79a3e2;--sidebar-width:300px;--header-height:80px}body{margin:0;font-family:Helvetica Neue,Arial,sans-serif;background:#f0f2f5}.global-navbar{position:fixed;top:0;left:0;width:100%;height:var(--header-height);background:var(--primary-color);color:#fff;display:flex;align-items:center;justify-content:space-between;box-sizing:border-box;padding:0 10px;z-index:1500}.logo-area{display:flex;align-items:center;gap:8px;font-weight:700;font-size:1.4em}.hamburger{font-size:40px;cursor:pointer;padding:10px;-webkit-user-select:none;user-select:none}.sidebar{position:fixed;top:var(--header-height);left:calc(-1 * var(--sidebar-width));width:var(--sidebar-width);height:calc(100vh - var(--header-height));background:#fff;box-shadow:2px 0 10px #0000001a;transition:left .3s ease;z-index:999;overflow-y:auto}.sidebar.active{left:0}.sidebar-menu{list-style:none;padding:0;margin:0}.sidebar-menu li a{display:block;padding:15px 20px;color:#444;text-decoration:none;border-bottom:1px solid #f0f0f0;transition:.2s}.sidebar-menu li a:hover{background:#f8f9fa;color:var(--primary-color);padding-left:25px}.sidebar-menu .menu-section{padding:20px 20px 5px;font-size:.75em;color:#aaa;text-transform:uppercase;background:#f8f9fa;border-top:1px solid #eee}.sidebar-menu .logout{color:#ff6b6b}.main-wrapper{margin-top:var(--header-height);padding:20px;box-sizing:border-box}.main-card{background:#fff;border-radius:8px;padding:25px;box-shadow:0 2px 8px #0000000d;margin-bottom:20px}.btn-submit{background:var(--primary-color);color:#fff;border:none;padding:8px 14px;border-radius:6px;cursor:pointer;font-weight:700}.badge-admin{display:inline-block;background:#e8f4fd;color:#1a6fad;border:1px solid #b3d7f5;border-radius:4px;padding:2px 7px;font-size:.8em;font-weight:700}.btn-cancel{background:#dc3545;color:#fff;border:none;padding:6px 10px;border-radius:4px;cursor:pointer}.btn-half{background:#17a2b8;color:#fff;border:none;padding:8px 12px;border-radius:4px;cursor:pointer}.btn-dota{background:#f39c12;color:#fff;border:none;padding:6px;border-radius:4px;cursor:pointer}.btn-dota2{background:#cf2f3a;color:#fff;border:none;padding:6px;border-radius:4px;cursor:pointer}.practice-table{width:100%;border-collapse:collapse;margin-top:15px;font-size:.95em;display:block;overflow-x:auto;white-space:nowrap}.practice-table th{background:#f8f9fa;padding:10px;border-bottom:2px solid #ddd;color:#555}.practice-table td{padding:12px 5px;border-bottom:1px solid #eee;text-align:center;vertical-align:top}.sub{font-size:.85em;color:#666}.target{margin-top:2px;font-size:.85em;font-weight:700;color:#d35400}.gcal{display:inline-block;margin-top:8px;font-size:.75em;color:#1a73e8;background:#e8f0fe;padding:4px 8px;border-radius:4px;text-decoration:none;font-weight:700}.toggle{background:#f0f2f5;border:1px solid #ccc;padding:6px 12px;border-radius:20px;font-size:.85em;cursor:pointer;font-weight:700}.participants{margin-top:10px;background:#fdfdfd;padding:10px;border-radius:8px;border:1px solid #eee;white-space:normal}.participants .group{margin-bottom:8px;font-size:.85em}.login-wrapper{display:flex;justify-content:center;align-items:center;min-height:100vh;padding:20px;box-sizing:border-box}.login-box{background:#fff;padding:40px 30px;border-radius:12px;box-shadow:0 8px 24px #0000001a;width:100%;max-width:480px;box-sizing:border-box;text-align:center}.login-box h1{margin-top:0;font-size:1.8em;line-height:1.3;color:#333}.login-box .hint{font-size:.85em;color:#e74c3c;font-weight:700}.login-box .error{color:#dc3545;font-weight:700}.input-group{text-align:left;margin-bottom:20px}.input-group label{display:block;font-size:.9em;font-weight:700;color:#555;margin-bottom:5px}.login-box input{width:100%;padding:12px;border:1px solid #ccc;border-radius:6px;font-size:16px;box-sizing:border-box}.login-box button{width:100%;padding:15px;background:var(--primary-color);color:#fff;border:none;border-radius:8px;font-size:1.1em;font-weight:700;cursor:pointer;margin-top:10px}.login_logo-area{margin-bottom:15px}.login_logo-area img{height:100px;width:auto;max-width:100%;object-fit:contain}.logo-area img{height:48px}@media (max-width: 768px){.logo-area img{height:36px}}