:root{--brand-primary: #D66E4F;--brand-secondary: #0F2536;--brand-accent: #B7BCBC;--brand-light: #F9FAF8;--nav-bg: var(--brand-primary);--nav-text: #ffffff;--nav-hover-bg: rgba(255, 255, 255, .15);--nav-active-bg: rgba(255, 255, 255, .2);--dropdown-bg: #ffffff;--dropdown-text: #333333;--dropdown-text-secondary: #6b7280;--dropdown-border: #e5e7eb;--dropdown-hover-bg: #f3f4f6;--nav-height: 64px;--nav-padding: 1rem;--nav-max-width: 1200px;--nav-shadow: 0 2px 4px rgba(0, 0, 0, .1);--dropdown-shadow: 0 10px 25px rgba(0, 0, 0, .15);--transition-speed: .2s;--transition-easing: ease}.navigation-bar{position:sticky;top:0;width:100%;background:var(--nav-bg);box-shadow:var(--nav-shadow);z-index:1000}.nav-container{max-width:var(--nav-max-width);margin:0 auto;padding:0 var(--nav-padding);height:var(--nav-height);display:flex;justify-content:space-between;align-items:center}.nav-left{display:flex;align-items:center}.nav-logo{display:flex;align-items:center;gap:.75rem;text-decoration:none;color:var(--nav-text);font-weight:600;font-size:1.125rem;transition:opacity var(--transition-speed) var(--transition-easing)}.nav-logo:hover{opacity:.9}.nav-logo:focus{outline:2px solid var(--brand-accent);outline-offset:2px;border-radius:4px}.logo-image{height:40px;width:auto;display:block}.logo-text{font-weight:700;letter-spacing:-.025em}.nav-right{display:flex;align-items:center;gap:1rem}.nav-login-button{background:#fff3;color:var(--nav-text);border:1px solid rgba(255,255,255,.3);padding:.5rem 1rem;border-radius:6px;font-size:.875rem;font-weight:500;cursor:pointer;transition:all var(--transition-speed) var(--transition-easing)}.nav-login-button:hover{background:#ffffff4d;transform:translateY(-1px)}.nav-login-button:active{transform:translateY(0)}.nav-login-button:focus{outline:2px solid var(--brand-accent);outline-offset:2px}.nav-user-container{position:relative}.nav-user-button{display:flex;align-items:center;gap:.5rem;background:#ffffff1a;border:1px solid rgba(255,255,255,.2);padding:.375rem .75rem;border-radius:8px;color:var(--nav-text);cursor:pointer;transition:all var(--transition-speed) var(--transition-easing)}.nav-user-button:hover{background:var(--nav-hover-bg)}.nav-user-button:active{background:var(--nav-active-bg)}.nav-user-button:focus{outline:2px solid var(--brand-accent);outline-offset:2px}.nav-avatar{width:32px;height:32px;border-radius:50%;object-fit:cover;background:var(--dropdown-bg)}.nav-username{font-size:.875rem;font-weight:500;max-width:150px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.nav-dropdown-icon{width:20px;height:20px;transition:transform var(--transition-speed) var(--transition-easing);flex-shrink:0}.nav-user-container.dropdown-open .nav-dropdown-icon{transform:rotate(180deg)}.nav-dropdown{position:absolute;top:calc(100% + .5rem);right:0;background:var(--dropdown-bg);border:1px solid var(--dropdown-border);border-radius:8px;box-shadow:var(--dropdown-shadow);min-width:280px;opacity:0;visibility:hidden;transform:translateY(-10px);transition:all var(--transition-speed) var(--transition-easing)}.nav-user-container.dropdown-open .nav-dropdown{opacity:1;visibility:visible;transform:translateY(0)}.dropdown-header{display:flex;align-items:center;gap:.75rem;padding:1rem}.dropdown-avatar{width:48px;height:48px;border-radius:50%;object-fit:cover;flex-shrink:0;background:var(--dropdown-border)}.dropdown-user-info{flex:1;min-width:0}.dropdown-name{font-weight:600;font-size:.9375rem;color:var(--dropdown-text);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;margin-bottom:.125rem}.dropdown-email{font-size:.8125rem;color:var(--dropdown-text-secondary);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.dropdown-divider{height:1px;background:var(--dropdown-border);margin:0}.dropdown-item{display:flex;align-items:center;gap:.5rem;width:100%;padding:.75rem 1rem;background:transparent;border:none;color:var(--dropdown-text);font-size:.875rem;text-align:left;cursor:pointer;transition:background var(--transition-speed) var(--transition-easing)}.dropdown-item:hover{background:var(--dropdown-hover-bg)}.dropdown-item:focus{outline:none;background:var(--dropdown-hover-bg)}.dropdown-item:first-of-type{border-radius:0 0 8px 8px}.dropdown-icon{width:20px;height:20px;color:var(--dropdown-text-secondary);flex-shrink:0}@media(max-width:768px){.nav-container{padding:0 1rem}.nav-username{max-width:100px}}@media(max-width:640px){.nav-container{padding:0 .75rem}.logo-text,.nav-username{display:none}.nav-dropdown{min-width:260px;right:-.5rem}.logo-image{height:36px}.nav-avatar{width:28px;height:28px}}.main-content{min-height:calc(100vh - var(--nav-height));display:flex;flex-direction:column;align-items:center;justify-content:center;padding:2rem 1rem}@media(prefers-contrast:high){.nav-logo:focus,.nav-login-button:focus,.nav-user-button:focus{outline:3px solid currentColor;outline-offset:3px}}@media(prefers-reduced-motion:reduce){.nav-logo,.nav-login-button,.nav-user-button,.nav-dropdown,.nav-dropdown-icon,.dropdown-item{transition:none}}.nav-logo:focus-visible,.nav-login-button:focus-visible,.nav-user-button:focus-visible,.dropdown-item:focus-visible{outline:2px solid var(--brand-accent);outline-offset:2px}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;background:#f3f4f6;min-height:100vh}.homepage-logo{max-width:320px;width:90%;height:auto;display:block}.content-card{background:#fff;padding:3rem 2rem;border-radius:12px;box-shadow:0 10px 30px #0000001a;text-align:center;max-width:500px;width:90%;margin-bottom:2rem}.welcome-message{font-size:2rem;font-weight:600;color:#d66e4f;text-align:center}.status{margin-top:1rem;padding:.5rem;border-radius:4px;font-size:.9rem}.status.loading{background:#e3f2fd;color:#1976d2}.status.error{background:#ffebee;color:#c62828}.status.success{background:#e8f5e8;color:#2e7d32}