:root{--primary: #6366f1;--primary-dark: #4f46e5;--primary-light: #818cf8;--secondary: #f1f5f9;--success: #10b981;--warning: #f59e0b;--error: #ef4444;--text: #1e293b;--text-light: #64748b;--text-white: #ffffff;--bg: #ffffff;--bg-dark: #f8fafc;--border: #e2e8f0;--shadow: rgba(0, 0, 0, .1);--radius: 12px;--radius-sm: 8px}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:linear-gradient(135deg,#667eea,#764ba2);min-height:100vh;color:var(--text);line-height:1.6}#root{min-height:100vh}.container{max-width:800px;margin:0 auto;padding:2rem 1rem}.card{background:var(--bg);border-radius:var(--radius);box-shadow:0 20px 60px var(--shadow);padding:2rem;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.header{text-align:center;margin-bottom:2rem}.header h1{font-size:2rem;font-weight:700;background:linear-gradient(135deg,#667eea,#764ba2);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:.5rem}.header p{color:var(--text-light);font-size:1rem}.calendar{margin-bottom:2rem}.calendar-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem}.calendar-header h2{font-size:1.25rem;font-weight:600}.calendar-nav{display:flex;gap:.5rem}.calendar-nav button{background:var(--secondary);border:none;border-radius:var(--radius-sm);padding:.5rem 1rem;cursor:pointer;font-weight:500;transition:all .2s}.calendar-nav button:hover{background:var(--primary);color:var(--text-white)}.calendar-days-header{display:grid;grid-template-columns:repeat(7,1fr);gap:4px;margin-bottom:.5rem}.calendar-days-header span{text-align:center;font-weight:600;font-size:.875rem;color:var(--text-light);padding:.5rem}.calendar-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:4px}.calendar-day{aspect-ratio:1;display:flex;align-items:center;justify-content:center;border-radius:var(--radius-sm);font-weight:500;cursor:pointer;transition:all .2s;border:2px solid transparent}.calendar-day:hover:not(.disabled):not(.other-month){background:var(--primary-light);color:var(--text-white)}.calendar-day.today{border-color:var(--primary)}.calendar-day.selected{background:var(--primary);color:var(--text-white)}.calendar-day.other-month{color:var(--border);cursor:default}.calendar-day.disabled{color:var(--text-light);cursor:not-allowed;opacity:.5}.time-slots{margin-bottom:2rem}.time-slots h3{font-size:1.125rem;font-weight:600;margin-bottom:1rem}.slots-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(100px,1fr));gap:.5rem}.slot{padding:.75rem;text-align:center;border:2px solid var(--border);border-radius:var(--radius-sm);cursor:pointer;font-weight:500;transition:all .2s}.slot:hover{border-color:var(--primary);background:var(--primary-light);color:var(--text-white)}.slot.selected{background:var(--primary);border-color:var(--primary);color:var(--text-white)}.no-slots{text-align:center;color:var(--text-light);padding:2rem;background:var(--bg-dark);border-radius:var(--radius-sm)}.booking-form{background:var(--bg-dark);padding:1.5rem;border-radius:var(--radius)}.booking-form h3{font-size:1.125rem;font-weight:600;margin-bottom:1rem}.form-group{margin-bottom:1rem}.form-group label{display:block;font-weight:500;margin-bottom:.5rem;color:var(--text)}.form-group input{width:100%;padding:.75rem 1rem;border:2px solid var(--border);border-radius:var(--radius-sm);font-size:1rem;transition:border-color .2s}.form-group input:focus{outline:none;border-color:var(--primary)}.booking-summary{background:var(--bg);padding:1rem;border-radius:var(--radius-sm);margin-bottom:1rem}.booking-summary p{color:var(--text-light);font-size:.875rem}.booking-summary strong{color:var(--text)}.btn{display:inline-flex;align-items:center;justify-content:center;padding:.875rem 1.5rem;border:none;border-radius:var(--radius-sm);font-size:1rem;font-weight:600;cursor:pointer;transition:all .2s;text-decoration:none}.btn-primary{background:linear-gradient(135deg,#667eea,#764ba2);color:var(--text-white);width:100%}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 4px 12px #667eea66}.btn-primary:disabled{opacity:.6;cursor:not-allowed;transform:none}.btn-secondary{background:var(--secondary);color:var(--text)}.btn-secondary:hover{background:var(--border)}.confirmation{text-align:center;padding:2rem 0}.confirmation-icon{width:80px;height:80px;background:linear-gradient(135deg,#10b981,#059669);border-radius:50%;display:flex;align-items:center;justify-content:center;margin:0 auto 1.5rem;font-size:2.5rem;color:#fff}.confirmation h2{font-size:1.5rem;margin-bottom:.5rem}.confirmation p{color:var(--text-light);margin-bottom:1.5rem}.confirmation-details{background:var(--bg-dark);padding:1.5rem;border-radius:var(--radius);text-align:left;margin-bottom:1.5rem}.confirmation-details p{margin-bottom:.5rem;color:var(--text)}.meet-link{display:inline-flex;align-items:center;gap:.5rem;color:var(--primary);text-decoration:none;font-weight:500}.meet-link:hover{text-decoration:underline}.admin-login{text-align:center;padding:3rem}.admin-login h2{margin-bottom:1rem}.admin-login p{color:var(--text-light);margin-bottom:2rem}.google-btn{display:inline-flex;align-items:center;gap:.75rem;padding:.875rem 1.5rem;background:var(--bg);border:2px solid var(--border);border-radius:var(--radius-sm);font-size:1rem;font-weight:500;cursor:pointer;transition:all .2s}.google-btn:hover{border-color:var(--primary);box-shadow:0 4px 12px var(--shadow)}.availability-editor{margin-top:1rem}.day-setting{display:flex;align-items:center;gap:1rem;padding:1rem;background:var(--bg-dark);border-radius:var(--radius-sm);margin-bottom:.5rem}.day-setting label{min-width:80px;font-weight:500}.day-setting input[type=checkbox]{width:20px;height:20px;cursor:pointer}.day-setting input[type=time]{padding:.5rem;border:2px solid var(--border);border-radius:var(--radius-sm);font-size:.875rem}.day-setting span{color:var(--text-light)}.loading{display:flex;align-items:center;justify-content:center;padding:2rem;color:var(--text-light)}.spinner{width:24px;height:24px;border:3px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spin 1s linear infinite;margin-right:.5rem}@keyframes spin{to{transform:rotate(360deg)}}.error{background:#fef2f2;border:1px solid #fecaca;color:var(--error);padding:1rem;border-radius:var(--radius-sm);margin-bottom:1rem}@media(max-width:640px){.container{padding:1rem .5rem}.card{padding:1.5rem 1rem}.header h1{font-size:1.5rem}.slots-grid{grid-template-columns:repeat(3,1fr)}.day-setting{flex-wrap:wrap}}