:root{--sidebar-bg: #1e3a5f;--sidebar-active: #2d5a8a;--header-bg: #f5f5f5;--main-bg: #ffffff;--text-primary: #333333;--text-secondary: #666666;--text-light: #ffffff;--border-color: #e0e0e0;--card-bg: #ffffff;--blue: #4a90e2;--green: #5cb85c;--orange: #f0ad4e;--light-blue: #5bc0de}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;color:var(--text-primary);background-color:var(--main-bg);line-height:1.6}.app-container{display:flex;min-height:100vh}.sidebar{width:260px;background-color:var(--sidebar-bg);color:var(--text-light);position:fixed;height:100vh;left:0;top:0;overflow-y:auto;z-index:1000}.sidebar-header{padding:20px;border-bottom:1px solid rgba(255,255,255,.1)}.logo{display:flex;align-items:center;justify-content:center}.logo-text{font-size:20px;font-weight:700;color:var(--text-light);letter-spacing:1px}.sidebar-nav{padding:10px 0}.nav-item{display:flex;align-items:center;padding:12px 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solid var(--border-color);background:#fff;border-radius:4px;cursor:pointer;font-size:12px;transition:all .2s}.view-toggle:hover{background-color:#f5f5f5}.view-toggle.active{background-color:var(--blue);color:#fff;border-color:var(--blue)}.calendar-grid{min-height:400px;border:1px solid var(--border-color);border-radius:4px;padding:20px}.calendar-placeholder{text-align:center;color:var(--text-secondary);padding:50px 0}.mobile-menu-toggle{display:none;position:absolute;top:50%;left:15px;transform:translateY(-50%);z-index:1101;background:var(--sidebar-bg);color:#fff;border:none;padding:4px 6px;border-radius:4px;cursor:pointer;font-size:16px;box-shadow:0 2px 8px #0003}.mobile-menu-toggle:hover{background:var(--sidebar-active)}.sidebar-overlay{display:none;position:fixed;top:0;left:0;right:0;bottom:0;background:#00000080;z-index:999}.sidebar-overlay.active{display:block}@media (min-width: 2560px){.dashboard-container{max-width:1920px;margin:0 auto}.content-area{max-width:1920px;margin:0 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#4a90e24d}.btn-primary:hover{background:#357abd;transform:translateY(-2px);box-shadow:0 6px 16px #4a90e266}.btn-primary:active{transform:translateY(0)}.btn-secondary{background:var(--green);color:#fff;box-shadow:0 4px 12px #4caf504d}.btn-secondary:hover{background:#4cae4c;transform:translateY(-2px);box-shadow:0 6px 16px #4caf5066}.btn-outline{background:transparent;color:var(--blue);border:2px solid var(--blue)}.btn-outline:hover{background:var(--blue);color:#fff;transform:translateY(-2px)}.btn-danger{background:#dc3545;color:#fff;box-shadow:0 4px 12px #dc35454d}.btn-danger:hover{background:#c82333;transform:translateY(-2px);box-shadow:0 6px 16px #dc354566}input[type=file]::file-selector-button{background:var(--blue);color:#fff;border:none;padding:8px 16px;border-radius:6px;cursor:pointer;font-weight:600;margin-right:12px;transition:var(--transition)}input[type=file]::file-selector-button:hover{background:#357abd;transform:translateY(-1px)}@media (max-width: 768px){.competition-form{padding:24px}.form-section{padding-bottom:24px;margin-bottom:32px}.section-title{font-size:20px;padding:12px 16px;margin-left:-24px;margin-right:-24px}.form-row{grid-template-columns:1fr;gap:20px}.form-actions{flex-direction:column;gap:12px}.form-actions .btn{width:100%}.header-actions{width:100%;flex-direction:column}.header-actions .btn{width:100%;justify-content:center}.page-header{flex-direction:column}.page-title{font-size:24px}}@media (max-width: 480px){.competition-form{padding:20px}.section-title{margin-left:-20px;margin-right:-20px;padding:10px 14px;font-size:18px}}