:root{--primary-color: #e74c3c;--secondary-color: #3498db;--success-color: #2ecc71;--warning-color: #f39c12;--danger-color: #e74c3c;--dark-bg: #1a1a2e;--card-bg: #16213e;--text-primary: #ffffff;--text-secondary: #a0a0a0;--border-color: #2d3748}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:linear-gradient(135deg,var(--dark-bg) 0%,#0f3460 100%);color:var(--text-primary);min-height:100vh}.login-container{display:flex;justify-content:center;align-items:center;min-height:100vh;padding:20px}.login-card{background:var(--card-bg);border-radius:16px;padding:40px;width:100%;max-width:400px;box-shadow:0 20px 60px #0000004d}.login-card h1{font-size:2rem;margin-bottom:8px;text-align:center}.subtitle{text-align:center;color:var(--text-secondary);margin-bottom:32px}.form-group{margin-bottom:20px}.form-group label{display:block;margin-bottom:8px;font-weight:500;color:var(--text-secondary)}.form-group input{width:100%;padding:12px 16px;background:var(--dark-bg);border:1px solid var(--border-color);border-radius:8px;color:var(--text-primary);font-size:1rem;transition:border-color .3s}.form-group input:focus{outline:none;border-color:var(--primary-color)}.btn-primary{width:100%;padding:14px;background:var(--primary-color);color:#fff;border:none;border-radius:8px;font-size:1rem;font-weight:600;cursor:pointer;transition:transform .2s,box-shadow .2s}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 20px #e74c3c66}.btn-secondary{padding:8px 16px;background:transparent;color:var(--text-primary);border:1px solid var(--border-color);border-radius:6px;cursor:pointer;transition:background .3s}.btn-secondary:hover{background:var(--dark-bg)}.signup-link{text-align:center;margin-top:24px;color:var(--text-secondary)}.signup-link a{color:var(--primary-color);text-decoration:none;font-weight:600}.error{background:#e74c3c1a;border:1px solid var(--danger-color);color:var(--danger-color);padding:12px;border-radius:8px;margin-bottom:20px}.success{background:#2ecc711a;border:1px solid var(--success-color);color:var(--success-color);padding:12px;border-radius:8px;margin-bottom:20px}.hidden{display:none}.loading-message,.error-message{grid-column:1 / -1;text-align:center;padding:40px;font-size:1.2rem;color:var(--text-secondary)}.error-message{color:var(--danger-color)}.dashboard{min-height:100vh}.dashboard-header{background:var(--card-bg);padding:0 2vw;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--border-color);position:relative;height:8vh;max-height:60px;min-height:40px}.dashboard-header h1{font-size:1rem;margin:0;display:inline-flex;align-items:center;gap:4px}.hamburger{display:none;font-size:1.3rem;background:transparent;border:none;color:var(--text-primary);cursor:pointer;padding:6px 10px;margin:0;z-index:1001;min-width:auto}.header-actions{display:flex;gap:12px;align-items:center}@media(max-width:768px){.header-actions.mobile-menu{position:fixed;top:0;right:-100%;width:75%;max-width:280px;height:100vh;background:var(--card-bg);border-left:1px solid var(--border-color);padding:20px;display:flex;flex-direction:column;gap:12px;z-index:1000;transition:right .3s ease-in-out;box-shadow:-4px 0 16px #0006}.header-actions.mobile-menu.show{right:0}.header-actions.mobile-menu .btn-secondary{width:100%;padding:12px 16px;font-size:1rem;border-radius:8px;text-align:left}}.menu-overlay{position:fixed;top:0;left:0;width:100%;height:100vh;background:#00000080;z-index:999;display:none}.menu-overlay.show{display:block}.dashboard-main{padding:2vh 2vw;width:96vw;max-width:100%;margin:0 auto;height:92vh;display:flex;flex-direction:column}.stats-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5vw;margin-bottom:1.5vh;flex-shrink:0;max-width:100%}.stat-card{background:var(--card-bg);padding:2vh 1vw;border-radius:12px;border:1px solid var(--border-color);display:flex;align-items:center;justify-content:center;min-height:8vh}.stat-label{font-size:.95rem;color:var(--text-secondary);margin-bottom:12px;font-weight:500}.stat-value{font-size:3rem;font-weight:700;color:var(--primary-color)}.trend-arrow{font-size:4rem!important}.chart-container{background:var(--card-bg);padding:0;border-radius:8px;border:1px solid var(--border-color);margin-bottom:0;flex:1;display:flex;flex-direction:column;overflow:hidden;min-height:0}#glucose-chart{flex:1;min-height:0;width:100%}.chart-container h2{font-size:1.25rem;margin-bottom:20px;color:var(--text-primary)}#glucose-chart{width:100%;height:600px;min-height:500px}.time-range-container{margin-bottom:1vh;flex-shrink:0}.time-range-selector{display:flex;gap:.5vw;flex-wrap:wrap;justify-content:center;margin-bottom:1vh;padding:1vh 1vw;background:var(--card-bg);border-radius:12px;border:1px solid var(--border-color)}.date-picker-container{margin-bottom:1vh;flex-shrink:0}.date-picker{display:flex;align-items:center;justify-content:space-between;padding:1vh 2vw;background:var(--card-bg);border-radius:12px;border:1px solid var(--border-color);gap:1vw}.date-nav-btn{background:var(--dark-bg);color:var(--text-primary);border:1px solid var(--border-color);border-radius:8px;padding:8px 16px;font-size:1.2rem;cursor:pointer;transition:all .3s;min-width:44px}.date-nav-btn:hover{background:var(--border-color)}.date-display{flex:1;text-align:center;font-size:1rem;font-weight:600;color:var(--text-primary);cursor:pointer;padding:8px;border-radius:8px;transition:background .3s}.date-display:hover{background:var(--dark-bg)}.date-input{background:var(--dark-bg);color:var(--text-primary);border:1px solid var(--border-color);border-radius:8px;padding:8px;font-size:1rem;text-align:center}.time-btn{padding:10px 20px;background:var(--dark-bg);color:var(--text-secondary);border:1px solid var(--border-color);border-radius:8px;font-size:.95rem;font-weight:600;cursor:pointer;transition:all .3s}.time-btn:hover{background:var(--border-color);color:var(--text-primary)}.time-btn.active{background:var(--primary-color);color:#fff;border-color:var(--primary-color)}.entries-table{width:100%;border-collapse:collapse}.entries-table th{text-align:left;padding:12px;border-bottom:2px solid var(--border-color);color:var(--text-secondary);font-weight:600}.entries-table td{padding:12px;border-bottom:1px solid var(--border-color)}.bg-value{font-weight:600;color:var(--success-color)}.no-data{text-align:center;color:var(--text-secondary);padding:40px}.profile-container{max-width:800px;margin:0 auto}.profile-container h2{margin-bottom:32px}.profile-section{background:var(--card-bg);padding:32px;border-radius:12px;border:1px solid var(--border-color);margin-bottom:24px}.profile-section h3{margin-bottom:16px;color:var(--primary-color)}.section-description{color:var(--text-secondary);margin-bottom:24px;line-height:1.6}.secret-box{background:var(--dark-bg);padding:20px;border-radius:8px;margin-bottom:24px}.secret-box label{display:block;color:var(--text-secondary);margin-bottom:8px;font-size:.9rem}.secret-value{display:flex;align-items:center;gap:12px}.secret-value code{flex:1;background:#0000004d;padding:12px;border-radius:6px;color:var(--success-color);font-family:Courier New,monospace;word-break:break-all}.btn-icon{background:transparent;border:1px solid var(--border-color);padding:8px 12px;border-radius:6px;cursor:pointer;font-size:1.2rem;transition:background .3s}.btn-icon:hover{background:var(--card-bg)}.secret-actions{display:flex;flex-direction:column;gap:12px}.btn-danger{padding:12px 24px;background:var(--danger-color);color:#fff;border:none;border-radius:8px;font-weight:600;cursor:pointer;transition:transform .2s,box-shadow .2s}.btn-danger:hover{transform:translateY(-2px);box-shadow:0 8px 20px #e74c3c66}.warning-text{color:var(--warning-color);font-size:.9rem;margin:0}.info-grid{display:grid;gap:16px}.info-item{display:flex;justify-content:space-between;padding:12px 0;border-bottom:1px solid var(--border-color)}.info-item label{color:var(--text-secondary);font-weight:600}.info-item span{color:var(--text-primary)}@media(max-width:768px){.hamburger{display:block;padding:4px 8px!important;font-size:1.2rem!important;width:auto!important;min-width:auto!important}.header-actions:not(.mobile-menu){display:none!important}.dashboard-header{padding:0 3vw;height:8vh;max-height:60px;min-height:40px;flex-direction:row!important;justify-content:space-between;align-items:center}.dashboard-header h1{font-size:.85rem}.dashboard-main{padding:1vh 2vw;display:flex;flex-direction:column;height:92vh}.stats-grid{grid-template-columns:repeat(3,1fr);gap:1vw;margin-bottom:1vh;flex-shrink:0}.stat-card{padding:1vh 1vw}.stat-label{font-size:.7rem;margin-bottom:2px}.stat-value{font-size:1.8rem!important}.trend-arrow{font-size:2.5rem!important}.time-range-container{margin-bottom:1vh;flex-shrink:0}.time-range-selector{gap:1vw;margin-bottom:0;padding:1vh 1vw}.date-picker-container{margin-bottom:1vh}.date-picker{padding:1vh 2vw;gap:2vw}.date-nav-btn{padding:1vh 2vw;font-size:1rem;min-width:40px}.date-display{font-size:.9rem}.time-btn{padding:1vh 2vw;font-size:.75rem}.chart-container{padding:0!important;margin-bottom:0;flex:1;min-height:0;display:flex;flex-direction:column;border-radius:4px}#glucose-chart{flex:1;min-height:0;height:100%}.login-card{padding:24px}.profile-section{padding:20px}.secret-value{flex-direction:column;align-items:stretch}.btn-icon{width:100%}.entries-table{font-size:.9rem}.entries-table th,.entries-table td{padding:8px}}@media(max-width:480px){.dashboard-header h1{font-size:1.1rem}.dashboard-header{padding:6px 10px;gap:6px}.dashboard-main{padding:6px}.stats-grid{gap:4px;margin-bottom:6px}.stat-card{padding:6px}.stat-label{font-size:.65rem}.stat-value{font-size:1rem}.time-range-selector{gap:3px;margin-bottom:6px}.time-btn{padding:4px 6px;font-size:.7rem}.chart-container{padding:6px;margin-bottom:0}.chart-container h2{font-size:.85rem;margin-bottom:3px}.btn-primary,.btn-secondary{font-size:.9rem;padding:10px}}@media(max-width:768px){.dashboard-header{flex-direction:column;gap:12px;padding:12px 16px}.header-actions{width:100%;justify-content:space-between}.dashboard-main{padding:12px}.stats-grid{grid-template-columns:repeat(3,1fr);gap:8px;margin-bottom:12px}.stat-card{padding:12px}.stat-label{font-size:.75rem;margin-bottom:4px}.stat-value{font-size:1.25rem}.time-range-selector{gap:6px;margin-bottom:12px}.time-btn{padding:6px 12px;font-size:.85rem}.chart-container{padding:12px;margin-bottom:12px}.chart-container h2{font-size:1rem;margin-bottom:8px}.login-card{padding:24px}.profile-section{padding:20px}.secret-value{flex-direction:column;align-items:stretch}.btn-icon{width:100%}.entries-table{font-size:.9rem}.entries-table th,.entries-table td{padding:8px}}@media(max-width:480px){.dashboard-header h1{font-size:1.25rem}.dashboard-header{padding:10px 12px}.dashboard-main{padding:8px}.stats-grid{gap:6px;margin-bottom:8px}.stat-card{padding:8px}.stat-label{font-size:.7rem}.stat-value{font-size:1.1rem}.time-range-selector{gap:4px;margin-bottom:8px}.time-btn{padding:5px 8px;font-size:.75rem}.chart-container{padding:8px;margin-bottom:8px}.chart-container h2{font-size:.9rem;margin-bottom:6px}.btn-primary,.btn-secondary{font-size:.9rem;padding:10px}}