.spinner{border:2.5px solid var(--color-neutral-200);border-top-color:var(--color-primary-500);border-radius:50%;flex-shrink:0;animation:.7s linear infinite spin}.spinner--sm{width:16px;height:16px}.spinner--md{width:24px;height:24px}.spinner--lg{border-width:4px;width:48px;height:48px}@keyframes spin{to{transform:rotate(360deg)}}.btn{justify-content:center;align-items:center;gap:var(--space-2);font-weight:var(--font-weight-semibold);border-radius:var(--radius-md);cursor:pointer;white-space:nowrap;transition:all var(--transition-fast);font-family:var(--font-sans);border:none;line-height:1;text-decoration:none;display:inline-flex}.btn:disabled{opacity:.6;cursor:not-allowed}.btn--sm{padding:var(--space-2) var(--space-3);font-size:var(--font-size-sm)}.btn--md{padding:var(--space-3) var(--space-5);font-size:var(--font-size-sm)}.btn--lg{padding:var(--space-4) var(--space-8);font-size:var(--font-size-base)}.btn--full{width:100%}.btn--primary{background:linear-gradient(135deg, var(--color-primary-600), var(--color-primary-500));color:#fff;box-shadow:0 4px 14px #a855f74d}.btn--primary:hover:not(:disabled){background:linear-gradient(135deg, var(--color-primary-700), var(--color-primary-600));transform:translateY(-1px);box-shadow:0 6px 20px #a855f766}.btn--primary:active:not(:disabled){transform:translateY(0)}.btn--secondary{background:var(--color-neutral-100);color:var(--color-neutral-700)}.btn--secondary:hover:not(:disabled){background:var(--color-neutral-200)}.btn--outline{color:var(--color-primary-600);border:1.5px solid var(--color-primary-300);background:0 0}.btn--outline:hover:not(:disabled){background:var(--color-primary-50);border-color:var(--color-primary-500)}.btn--ghost{color:var(--color-neutral-600);background:0 0}.btn--ghost:hover:not(:disabled){background:var(--color-neutral-100);color:var(--color-neutral-800)}.btn--danger{background:var(--color-error);color:#fff}.btn--danger:hover:not(:disabled){background:#dc2626;transform:translateY(-1px)}.btn-icon{flex-shrink:0;align-items:center;display:flex}@media (width<=640px){.btn--md,.btn--lg{min-height:44px}.btn--sm{min-height:38px}}.auth-page{background:linear-gradient(135deg, var(--color-neutral-900) 0%, var(--color-primary-900) 50%, var(--color-neutral-800) 100%);min-height:100vh;padding:var(--space-6) var(--space-4);flex-direction:column;justify-content:center;align-items:center;display:flex;position:relative;overflow:hidden}.auth-page:before{content:"";pointer-events:none;background:radial-gradient(circle,#a855f733,#0000 70%);width:500px;height:500px;position:absolute;top:-100px;right:-100px}.auth-page:after{content:"";pointer-events:none;background:radial-gradient(circle,#7e22ce26,#0000 70%);width:400px;height:400px;position:absolute;bottom:-80px;left:-80px}.auth-brand{align-items:center;gap:var(--space-3);margin-bottom:var(--space-8);z-index:1;display:flex;position:relative}.auth-brand-logo{border-radius:var(--radius-xl);background:var(--color-neutral-0);justify-content:center;align-items:center;width:64px;height:64px;padding:8px;display:flex;box-shadow:0 4px 16px #00000040}.auth-brand-logo-img{object-fit:contain;width:100%;height:100%}.auth-brand-name{font-size:var(--font-size-2xl);font-weight:var(--font-weight-bold);color:#fff;letter-spacing:-.02em}.auth-brand-sub{font-size:var(--font-size-sm);color:#ffffff80}.auth-card{background:var(--color-neutral-0);border-radius:var(--radius-2xl);padding:var(--space-8);z-index:1;width:100%;max-width:440px;animation:.4s card-in;position:relative;box-shadow:0 32px 64px #0000004d,0 0 0 1px #ffffff0d}@keyframes card-in{0%{opacity:0;transform:translateY(24px)}to{opacity:1;transform:translateY(0)}}.auth-card-header{margin-bottom:var(--space-8);text-align:center}.auth-card-header h2{font-size:var(--font-size-2xl);font-weight:var(--font-weight-bold);color:var(--color-neutral-900);margin-bottom:var(--space-2)}.auth-card-header p{color:var(--color-neutral-500);font-size:var(--font-size-sm)}.auth-form{gap:var(--space-5);flex-direction:column;display:flex}.input-with-icon{position:relative}.input-with-icon .form-input{padding-right:2.75rem}.input-icon-btn{right:var(--space-3);color:var(--color-neutral-400);cursor:pointer;padding:var(--space-1);border-radius:var(--radius-sm);transition:color var(--transition-fast);background:0 0;border:none;align-items:center;display:flex;position:absolute;top:50%;transform:translateY(-50%)}.input-icon-btn:hover{color:var(--color-neutral-700)}.auth-forgot-link{text-align:right}.auth-forgot-link a{font-size:var(--font-size-sm);color:var(--color-primary-600);font-weight:var(--font-weight-medium);transition:color var(--transition-fast)}.auth-forgot-link a:hover{color:var(--color-primary-700)}.auth-footer-text{margin-top:var(--space-6);text-align:center;font-size:var(--font-size-sm);color:var(--color-neutral-500)}.auth-link{color:var(--color-primary-600);font-weight:var(--font-weight-semibold);transition:color var(--transition-fast)}.auth-link:hover{color:var(--color-primary-700)}.auth-link--back{align-items:center;gap:var(--space-1);display:inline-flex}.auth-success{text-align:center;padding:var(--space-4) 0}.auth-success-icon{width:72px;height:72px;margin:0 auto var(--space-5);background:var(--color-primary-100);border-radius:var(--radius-full);color:var(--color-primary-600);justify-content:center;align-items:center;display:flex}.auth-success h2{font-size:var(--font-size-xl);font-weight:var(--font-weight-bold);color:var(--color-neutral-900);margin-bottom:var(--space-3)}.auth-success p{font-size:var(--font-size-sm);color:var(--color-neutral-500);line-height:var(--line-height-relaxed)}@media (width<=480px){.auth-card{padding:var(--space-6) var(--space-5)}}.privacy-checkbox{align-items:flex-start;gap:var(--space-3);font-size:var(--font-size-sm);color:var(--color-neutral-700);cursor:pointer;line-height:1.5;display:flex}.privacy-checkbox input{width:22px;height:22px;accent-color:var(--color-primary-600);cursor:pointer;flex-shrink:0;margin-top:1px}.privacy-checkbox a{color:var(--color-primary-700);font-weight:var(--font-weight-semibold);text-decoration:underline}.badge{align-items:center;gap:var(--space-1);padding:2px var(--space-2);border-radius:var(--radius-full);font-size:var(--font-size-xs);font-weight:var(--font-weight-semibold);white-space:nowrap;display:inline-flex}.badge--default{background:var(--color-neutral-100);color:var(--color-neutral-600)}.badge--success{background:var(--color-success-bg);color:#16a34a}.badge--warning{background:var(--color-warning-bg);color:#d97706}.badge--error{background:var(--color-error-bg);color:#dc2626}.badge--info{background:var(--color-info-bg);color:#2563eb}.badge-dot{background:currentColor;border-radius:50%;flex-shrink:0;width:6px;height:6px}.class-card{background:var(--color-neutral-0);border:1px solid var(--color-neutral-200);border-radius:var(--radius-xl);box-shadow:var(--shadow-sm);transition:box-shadow var(--transition-base), transform var(--transition-base);flex-direction:column;display:flex;overflow:hidden}.class-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-2px)}.class-card--full{opacity:.9}.class-card--cancelled{opacity:.6}.class-card-bar{flex-shrink:0;height:4px}.class-card-content{padding:var(--space-5);gap:var(--space-3);flex-direction:column;flex:1;display:flex}.class-card-top{justify-content:space-between;align-items:center;gap:var(--space-2);display:flex}.class-card-cancelled-chip{font-size:var(--font-size-xs);font-weight:var(--font-weight-semibold);color:var(--color-error);background:var(--color-error-bg);padding:2px var(--space-2);border-radius:var(--radius-full)}.class-card-title{font-size:var(--font-size-lg);font-weight:var(--font-weight-bold);color:var(--color-neutral-900);line-height:var(--line-height-tight)}.class-card-title a{color:inherit;transition:color var(--transition-fast)}.class-card-title a:hover{color:var(--color-primary-600)}.class-card-meta{gap:var(--space-2);flex-direction:column;display:flex}.class-card-meta-item{align-items:center;gap:var(--space-2);font-size:var(--font-size-sm);color:var(--color-neutral-500);display:flex}.class-card-capacity{margin-top:auto}.class-card-capacity-top{margin-bottom:var(--space-2);justify-content:space-between;align-items:center;display:flex}.class-card-capacity-label{align-items:center;gap:var(--space-1);font-size:var(--font-size-xs);font-weight:var(--font-weight-medium);color:var(--color-neutral-600);display:flex}.class-card-capacity-count{font-size:var(--font-size-xs);color:var(--color-neutral-400)}.class-card-capacity-bar{background:var(--color-neutral-100);border-radius:var(--radius-full);height:5px;overflow:hidden}.class-card-capacity-fill{background:var(--color-success);border-radius:var(--radius-full);height:100%;transition:width var(--transition-base)}.class-card-capacity-fill.high{background:var(--color-warning)}.class-card-capacity-fill.full{background:var(--color-error)}.class-card-action{margin-top:var(--space-2)}.filters-bar{align-items:center;gap:var(--space-3);margin-bottom:var(--space-8);padding:var(--space-4);background:var(--color-neutral-0);border:1px solid var(--color-neutral-200);border-radius:var(--radius-xl);flex-wrap:wrap;display:flex}.filter-search{flex:1;min-width:200px;position:relative}.filter-search-icon{left:var(--space-3);color:var(--color-neutral-400);pointer-events:none;position:absolute;top:50%;transform:translateY(-50%)}.filter-search-input{padding-left:2.25rem!important}.filter-select,.filter-date{flex-shrink:0;min-width:160px}.filter-checkbox{align-items:center;gap:var(--space-2);font-size:var(--font-size-sm);color:var(--color-neutral-700);cursor:pointer;white-space:nowrap;display:flex}.filter-checkbox input[type=checkbox]{width:16px;height:16px;accent-color:var(--color-primary-500);cursor:pointer}.section-header{margin-bottom:var(--space-5);justify-content:space-between;align-items:center;display:flex}.section-title{font-size:var(--font-size-xl);font-weight:var(--font-weight-bold);color:var(--color-neutral-900)}.section-link{align-items:center;gap:var(--space-1);font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);color:var(--color-primary-600);transition:color var(--transition-fast);display:flex}.section-link:hover{color:var(--color-primary-700)}.dashboard-hero{justify-content:space-between;align-items:center;gap:var(--space-4);margin-bottom:var(--space-8);padding:var(--space-8);background:linear-gradient(135deg, var(--color-primary-900), var(--color-primary-700));border-radius:var(--radius-2xl);color:#fff;flex-wrap:wrap;display:flex}.dashboard-welcome{font-size:var(--font-size-2xl);font-weight:var(--font-weight-bold);margin-bottom:var(--space-1)}.dashboard-welcome-sub{color:#ffffffb3;font-size:var(--font-size-base)}@media (width<=768px){.filters-bar{gap:var(--space-2)}.filter-search{min-width:100%}}.class-detail-back{margin-bottom:var(--space-5)}.back-link{align-items:center;gap:var(--space-2);font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);color:var(--color-neutral-500);transition:color var(--transition-fast);display:inline-flex}.back-link:hover{color:var(--color-neutral-800)}.class-detail-layout{gap:var(--space-6);grid-template-columns:1fr 340px;align-items:start;display:grid}.class-detail-main{gap:var(--space-5);flex-direction:column;display:flex}.class-detail-hero{background:var(--color-neutral-0);border:1px solid var(--color-neutral-200);border-radius:var(--radius-xl);padding:var(--space-8);box-shadow:var(--shadow-sm)}.class-detail-top{align-items:center;gap:var(--space-3);margin-bottom:var(--space-4);display:flex}.class-cancelled-chip{font-size:var(--font-size-xs);font-weight:var(--font-weight-semibold);color:var(--color-error);background:var(--color-error-bg);padding:2px var(--space-2);border-radius:var(--radius-full)}.class-detail-title{font-size:var(--font-size-3xl);font-weight:var(--font-weight-bold);color:var(--color-neutral-900);margin-bottom:var(--space-3)}.class-detail-description{color:var(--color-neutral-500);line-height:var(--line-height-relaxed);margin-bottom:var(--space-6)}.class-detail-info-grid{gap:var(--space-5);grid-template-columns:1fr 1fr;display:grid}.class-info-item{align-items:flex-start;gap:var(--space-3);color:var(--color-primary-500);display:flex}.class-info-label{font-size:var(--font-size-xs);color:var(--color-neutral-400);text-transform:uppercase;letter-spacing:.05em;font-weight:var(--font-weight-semibold);margin-bottom:var(--space-1)}.class-info-value{font-size:var(--font-size-sm);color:var(--color-neutral-800);font-weight:var(--font-weight-medium);line-height:var(--line-height-relaxed)}.class-detail-capacity{padding:var(--space-5)}.class-detail-booking{top:calc(var(--header-height) + var(--space-5));gap:var(--space-4);flex-direction:column;display:flex;position:sticky}.class-detail-booking-title{font-size:var(--font-size-xl);font-weight:var(--font-weight-bold);color:var(--color-neutral-900)}.booking-confirmed{align-items:center;gap:var(--space-4);text-align:center;flex-direction:column;display:flex}.booking-confirmed-icon{border-radius:var(--radius-full);background:var(--color-success-bg);width:56px;height:56px;color:var(--color-success);font-size:var(--font-size-2xl);justify-content:center;align-items:center;font-weight:700;display:flex}.booking-confirmed-text{font-weight:var(--font-weight-semibold);color:var(--color-success)}@media (width<=900px){.class-detail-layout{grid-template-columns:1fr}.class-detail-booking{order:-1;position:static}.class-detail-info-grid{grid-template-columns:1fr}}.bookings-cal{background:var(--color-neutral-0);border:1px solid var(--color-neutral-200);border-radius:var(--radius-lg);padding:var(--space-4);width:100%;max-width:340px}.bookings-cal-header{margin-bottom:var(--space-3);justify-content:space-between;align-items:center;display:flex}.bookings-cal-month{font-size:var(--font-size-base);font-weight:var(--font-weight-semibold);color:var(--color-neutral-900);text-transform:capitalize}.bookings-cal-nav{border-radius:var(--radius-md);border:1px solid var(--color-neutral-200);background:var(--color-neutral-0);width:28px;height:28px;color:var(--color-neutral-600);cursor:pointer;transition:background var(--transition-fast);justify-content:center;align-items:center;display:inline-flex}.bookings-cal-nav:hover{background:var(--color-neutral-100)}.bookings-cal-grid{grid-template-columns:repeat(7,1fr);gap:4px;display:grid}.bookings-cal-grid--header{margin-bottom:4px}.bookings-cal-dayname{text-align:center;font-size:11px;font-weight:var(--font-weight-semibold);color:var(--color-neutral-400);text-transform:uppercase;padding:4px 0}.bookings-cal-day{aspect-ratio:1;border-radius:var(--radius-md);color:var(--color-neutral-700);cursor:default;transition:all var(--transition-fast);background:0 0;border:1px solid #0000;justify-content:center;align-items:center;padding:0;font-size:13px;font-weight:500;display:inline-flex;position:relative}.bookings-cal-day--outside{color:var(--color-neutral-300)}.bookings-cal-day--today{border-color:var(--color-neutral-300);font-weight:700}.bookings-cal-day--has-booking{cursor:pointer}.bookings-cal-day--has-booking:hover{background:var(--color-primary-50)}.bookings-cal-day--future{background:var(--color-primary-100);color:var(--color-primary-700);font-weight:600}.bookings-cal-day--future:hover{background:var(--color-primary-200)}.bookings-cal-day--past{background:var(--color-neutral-100);color:var(--color-neutral-500)}.bookings-cal-day--past:hover{background:var(--color-neutral-200)}.bookings-cal-day--selected{border-color:#0000;box-shadow:0 2px 8px #a855f74d;background:linear-gradient(135deg, var(--color-primary-600), var(--color-primary-500))!important;color:#fff!important}.bookings-cal-day-dot{opacity:.7;background:currentColor;border-radius:50%;width:4px;height:4px;position:absolute;bottom:4px;left:50%;transform:translate(-50%)}.bookings-cal-day--selected .bookings-cal-day-dot{opacity:1;background:#fff}.bookings-cal-legend{align-items:center;gap:var(--space-3);margin-top:var(--space-3);padding-top:var(--space-3);border-top:1px solid var(--color-neutral-100);color:var(--color-neutral-500);flex-wrap:wrap;font-size:11px;display:flex}.bookings-cal-legend span{align-items:center;gap:4px;display:inline-flex}.bookings-cal-legend-dot{border-radius:3px;width:10px;height:10px;display:inline-block}.bookings-cal-legend-dot--future{background:var(--color-primary-300)}.bookings-cal-legend-dot--past{background:var(--color-neutral-200)}.bookings-cal-clear{color:var(--color-primary-600);cursor:pointer;background:0 0;border:none;margin-left:auto;padding:0;font-size:11px;font-weight:600}.bookings-cal-clear:hover{text-decoration:underline}.privacy-page{min-height:100vh;padding:var(--space-6) var(--space-4) var(--space-12);background:var(--color-neutral-50)}.privacy-card{max-width:760px;padding:var(--space-8);background:var(--color-neutral-0);border-radius:var(--radius-2xl);box-shadow:var(--shadow-md);font-size:var(--font-size-lg);color:var(--color-neutral-800);margin:0 auto;line-height:1.65}.privacy-card h1{color:var(--color-neutral-900);font-size:1.75rem}.privacy-card h2{margin:var(--space-8) 0 var(--space-3);font-size:var(--font-size-xl);color:var(--color-neutral-900)}.privacy-card p+p{margin-top:var(--space-3)}.privacy-card ul{gap:var(--space-2);margin:var(--space-3) 0;padding-left:var(--space-6);flex-direction:column;display:flex}.privacy-card a{color:var(--color-primary-700);text-decoration:underline}.privacy-updated{margin-top:var(--space-1);font-size:var(--font-size-base);color:var(--color-neutral-500)}.privacy-summary{margin-top:var(--space-6);padding:var(--space-4) var(--space-5);background:var(--color-primary-50);border-left:4px solid var(--color-primary-600);border-radius:var(--radius-md)}.privacy-back{align-items:center;gap:var(--space-2);min-height:44px;margin-bottom:var(--space-4);padding:0 var(--space-3);border-radius:var(--radius-md);background:var(--color-neutral-100);color:var(--color-neutral-700);font-size:var(--font-size-base);font-weight:var(--font-weight-semibold);border:none;display:inline-flex}.privacy-footer{margin-top:var(--space-10);text-align:center}@media (width<=640px){.privacy-page{padding:var(--space-3) var(--space-3) var(--space-8)}.privacy-card{padding:var(--space-5) var(--space-4)}}.modal-overlay{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:1000;padding:var(--space-4);animation:overlay-in var(--transition-fast) ease;background:#0f0c2299;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}@keyframes overlay-in{0%{opacity:0}to{opacity:1}}.modal{background:var(--color-neutral-0);border-radius:var(--radius-2xl);box-shadow:var(--shadow-xl);width:100%;max-height:90vh;animation:modal-in var(--transition-base) ease;flex-direction:column;display:flex}@keyframes modal-in{0%{opacity:0;transform:translateY(20px)scale(.97)}to{opacity:1;transform:translateY(0)scale(1)}}.modal--sm{max-width:400px}.modal--md{max-width:560px}.modal--lg{max-width:760px}.modal-header{padding:var(--space-6);border-bottom:1px solid var(--color-neutral-100);justify-content:space-between;align-items:center;display:flex}.modal-title{font-size:var(--font-size-xl);font-weight:var(--font-weight-bold);color:var(--color-neutral-900)}.modal-close{background:var(--color-neutral-100);border-radius:var(--radius-md);width:36px;height:36px;color:var(--color-neutral-500);cursor:pointer;transition:all var(--transition-fast);border:none;flex-shrink:0;justify-content:center;align-items:center;display:flex}.modal-close:hover{background:var(--color-neutral-200);color:var(--color-neutral-700)}.modal-body{padding:var(--space-6);flex:1;overflow-y:auto}.modal-footer{padding:var(--space-4) var(--space-6);border-top:1px solid var(--color-neutral-100);justify-content:flex-end;gap:var(--space-3);display:flex}.account-page{max-width:640px}.account-section{align-items:flex-start;gap:var(--space-4);margin-bottom:var(--space-5);flex-direction:column;display:flex}.account-section h2{font-size:var(--font-size-lg);font-weight:var(--font-weight-semibold);color:var(--color-neutral-900)}.account-form{gap:var(--space-4);flex-direction:column;width:100%;display:flex}.account-readonly{padding:var(--space-2) 0;color:var(--color-neutral-700)}.account-muted{font-size:var(--font-size-sm);color:var(--color-neutral-600);line-height:1.6}.account-links{gap:var(--space-3);flex-direction:column;display:flex}.account-links a{align-items:center;gap:var(--space-2);min-height:44px;font-weight:var(--font-weight-medium);color:var(--color-primary-700);display:inline-flex}.account-danger{border-color:var(--color-error-bg)}.class-form-page{max-width:900px}.class-form{flex-direction:column;gap:0;display:flex}.form-section{padding:var(--space-6);border-bottom:1px solid 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