:root{--primary: #10b981;--primary-dark: #059669;--secondary: #3b82f6;--danger: #ef4444;--warning: #f59e0b;--dark: #1f2937;--medium: #6b7280;--light: #f3f4f6;--white: #ffffff;--success: #22c55e;--border: #e5e7eb;--shadow-sm: 0 1px 2px 0 rgb(0 0 0 / .05);--shadow-md: 0 4px 6px -1px rgb(0 0 0 / .1);--shadow-lg: 0 10px 15px -3px rgb(0 0 0 / .1);--radius: 12px;--radius-sm: 8px;--radius-lg: 16px;--safe-area-top: env(safe-area-inset-top);--safe-area-bottom: env(safe-area-inset-bottom)}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;background:linear-gradient(135deg,#667eea,#764ba2);min-height:100vh;color:var(--dark);padding-top:calc(var(--safe-area-top));padding-bottom:calc(var(--safe-area-bottom))}.app-container{max-width:100%;padding:12px 12px 80px}.nav-container{background:#fffffff2;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:var(--radius-lg);padding:12px 16px;margin-bottom:16px;box-shadow:var(--shadow-lg);position:sticky;top:12px;z-index:100}.nav-content{display:flex;justify-content:space-between;align-items:center}.nav-brand{display:flex;align-items:center;gap:8px;font-size:18px;font-weight:700;color:var(--primary-dark)}.nav-brand svg{width:28px;height:28px}.user-menu{display:flex;align-items:center;gap:12px}.wallet-badge{display:flex;align-items:center;gap:6px;padding:6px 12px;background:var(--success);color:#fff;border-radius:20px;font-weight:600;font-size:13px}.user-info{position:absolute;right:0;top:calc(100% + 8px);background-color:#fff;border-radius:12px;border:1px solid gray;padding:8px;box-shadow:0 8px 20px #0000004d;min-width:220;z-index:10}.user-avatar{width:42px;height:42px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--secondary));display:flex;align-items:center;justify-content:center;color:#fff;font-weight:600;font-size:14px;cursor:pointer}.bottom-nav{position:fixed;bottom:0;left:0;right:0;background:#fffffff2;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);padding:8px 0 calc(8px + var(--safe-area-bottom));box-shadow:0 -2px 10px #0000001a;z-index:100;display:flex;justify-content:space-around}.nav-link{display:flex;flex-direction:column;align-items:center;padding:8px;text-decoration:none;color:var(--medium);font-size:11px;font-weight:500;transition:all .2s}.nav-link.active{color:var(--primary)}.nav-link svg{width:24px;height:24px;margin-bottom:4px}.main-content{background:#fffffff2;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:var(--radius-lg);padding:20px 16px;box-shadow:var(--shadow-lg);margin-bottom:16px}.sessions-header{margin-bottom:20px}.page-title{font-size:24px;font-weight:700;color:var(--dark);margin-bottom:12px}.sessions-grid{display:flex;flex-direction:column;gap:16px}.session-card{background:#fff;border-radius:var(--radius);padding:16px;border:2px solid var(--border);transition:all .3s;position:relative;overflow:hidden}.session-card:before{content:"";position:absolute;top:0;left:0;width:100%;height:4px;background:var(--primary);transform:scaleX(0);transition:transform .3s}.session-card:active{transform:scale(.98);box-shadow:var(--shadow-sm)}.session-card:active:before{transform:scaleX(1)}.session-status{display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:20px;font-size:11px;font-weight:600;margin-bottom:10px}.session-status.open{background:#dcfce7;color:#16a34a}.session-status.full{background:#fef3c7;color:#d97706}.session-status.closed{background:#fee2e2;color:#dc2626}.session-title{font-size:16px;font-weight:600;margin-bottom:6px;color:var(--dark)}.session-datetime{display:flex;align-items:center;gap:6px;color:var(--medium);margin-bottom:14px;font-size:13px}.session-stats{display:flex;justify-content:space-between;padding-top:14px;border-top:1px solid var(--border)}.stat-item{text-align:center}.stat-value{font-size:18px;font-weight:700;color:var(--dark)}.stat-label{font-size:11px;color:var(--medium);margin-top:2px}.detail-container{display:flex;flex-direction:column;background:#fffffff2;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:var(--radius-lg);padding:20px 16px;box-shadow:var(--shadow-lg);gap:12px}.back-button{display:inline-flex;align-items:center;gap:6px;padding:8px 12px;background:var(--light);border:none;border-radius:var(--radius-sm);color:var(--dark);font-weight:500;font-size:14px;margin-bottom:16px}.detail-header{padding-bottom:20px;border-bottom:2px solid var(--border);margin-bottom:20px}.detail-info h1{font-size:22px;font-weight:700;color:var(--dark);margin-bottom:12px}.detail-meta{display:flex;flex-direction:column;gap:4px}.meta-item{display:flex;align-items:center;gap:8px;color:var(--medium);font-size:13px}.meta-item svg{width:16px;height:16px}.session-header{font-size:x-large;font-weight:700;padding-bottom:8px}.registration-header{display:flex;flex-direction:column;background:#667eea;border-radius:var(--radius);padding:20px;color:#fff}.registration-card{background:linear-gradient(135deg,#667eea);border-radius:var(--radius);padding:20px;color:#fff;display:flex;flex-direction:column;gap:8px}.registration-title{font-size:18px;font-weight:600}.form-group{display:flex;flex-direction:column;margin-bottom:8px}.form-label{display:block;color:#000;margin-bottom:8px;font-weight:500;font-size:13px}.form-label-dark{display:block;color:#fffe;margin-bottom:8px;font-weight:500;font-size:13px}.form-input{flex:1;gap:8px;padding:10px 14px;border:2px solid rgba(94,94,94,.3);border-radius:var(--radius-sm);background:#ffffff1a;color:#000;font-size:16px;transition:all .2s}.form-input-dark{flex:1;gap:8px;padding:10px 14px;border:2px solid #ffffff4d;border-radius:var(--radius-sm);background:#fffe;color:#000;font-size:16px;transition:all .2s}.form-input-dark:focus{outline:none;border-color:var(--primary);background:#fff}.form-input::placeholder{color:#d3d3d3}.form-input-dark::placeholder{color:#d3d3d3}.form-input:focus{outline:none;border-color:var(--primary);background:#fff3}.seat-selection{display:flex;padding:8px 0}.seats-selector{display:flex;gap:12px;justify-content:space-between}.form-input,.seat-option{-webkit-appearance:none!important;appearance:none}.seat-option{flex:1;padding:12px;border:2px solid rgba(255,255,255,.3);border-radius:var(--radius-sm);background:#ffffff1a;color:#fff;text-align:center;font-size:14px;transition:all .2s}.seat-option:active{transform:scale(.95)}.seat-option.selected{background:#fff;color:var(--primary);border-color:#fff}.cost-display{display:flex;justify-content:space-evenly;align-items:center;padding:14px;background:#ffffff1a;border-radius:var(--radius-sm)}.cost-label{font-size:16px;opacity:.9}.cost-value{font-size:20px;font-weight:700}.btn{width:100%;padding:12px 20px;border:none;border-radius:var(--radius-sm);font-weight:600;font-size:14px;transition:all .2s;display:flex;align-items:center;justify-content:center;gap:8px;cursor:pointer}.btn:active{transform:scale(.98)}.btn-primary{background-color:var(--white);color:var(--primary);border:1px solid var(--primary)}.btn-primary:active{background-color:var(--primary);color:var(--white)}.btn-secondary{background-color:var(--white);border:1px solid var(--secondary);color:var(--secondary)}.btn-secondary:active{background-color:var(--secondary);border:1px solid var(--secondary);color:var(--white)}.btn-danger{background:var(--danger);color:#fff}.cancellation-note{padding:10px;background:#ffffff1a;border-radius:var(--radius-sm);font-size:12px;line-height:1.4}.section-header{display:flex;justify-content:space-between;align-items:center}.section-title{font-size:18px;font-weight:600;color:var(--dark)}.participant-count{display:inline-block;padding:2px 8px;background:var(--primary);color:#fff;border-radius:12px;font-size:12px;font-weight:600}.participant-list{display:flex;flex-direction:column;gap:10px}.participant-card{display:flex;justify-content:space-between;align-items:center;padding:12px;background:#fff;border:1px solid var(--border);border-radius:var(--radius-sm);transition:all .2s}.participant-card:active{box-shadow:var(--shadow-sm);border-color:var(--primary)}.participant-info{display:flex;align-items:center;gap:10px;flex:1}.participant-avatar{width:42px;height:42px;border-radius:50%;background:linear-gradient(135deg,#667eea,#764ba2);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:600;font-size:13px}.participant-details{display:flex;flex-direction:column}.participant-name{font-weight:600;color:var(--dark);font-size:14px}.participant-meta{font-size:12px;color:var(--medium)}.guest-badge{display:inline-block;padding:2px 6px;background:var(--light);border-radius:10px;font-size:10px;color:var(--medium);margin-left:6px}.participant-actions{display:flex;gap:6px}.action-btn{padding:6px 10px;background:var(--light);border:1px solid var(--border);border-radius:var(--radius-sm);font-size:12px;font-weight:500;color:var(--dark);cursor:pointer}.action-btn.danger{color:var(--danger);border-color:var(--danger)}.waitlist-item{display:flex;align-items:center;gap:10px;padding:10px;background:var(--light);border-radius:var(--radius-sm);margin-bottom:8px}.waitlist-position{display:flex;align-items:center;justify-content:center;width:28px;height:28px;background:var(--warning);color:#fff;border-radius:50%;font-weight:600;font-size:12px}.waitlist-info{flex:1}.waitlist-name{font-weight:600;color:var(--dark);font-size:14px}.waitlist-seats{font-size:12px;color:var(--medium)}.fab{position:fixed;bottom:calc(80px + var(--safe-area-bottom));right:16px;width:56px;height:56px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--primary-dark));border:none;box-shadow:0 4px 12px #10b98166;display:flex;align-items:center;justify-content:center;color:#fff;z-index:90;transition:all .3s}.fab:active{transform:scale(.95);box-shadow:0 2px 8px #10b98166}.skeleton{background:linear-gradient(90deg,var(--light) 25%,#e0e0e0 50%,var(--light) 75%);background-size:200% 100%;animation:loading 1.5s infinite;border-radius:var(--radius-sm);height:120px;margin-bottom:12px}@keyframes loading{0%{background-position:200% 0}to{background-position:-200% 0}}@keyframes slideIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.animate-in{animation:slideIn .3s ease-out}.success-banner{background:var(--success);color:#fff;padding:12px;border-radius:var(--radius-sm);text-align:center;margin-bottom:16px;font-weight:600;font-size:14px}@media (max-width: 360px){.page-title{font-size:20px}.session-stats{font-size:12px}.stat-value{font-size:16px}}.admin-tab-strip{display:flex;gap:8px;overflow-x:auto;overflow-y:hidden;-webkit-overflow-scrolling:touch;white-space:nowrap;padding:0 12px 8px;margin:0 -12px;touch-action:pan-x;overscroll-behavior-x:contain;justify-content:flex-start}.admin-tab-strip::-webkit-scrollbar{display:none}.admin-tab-strip{scrollbar-width:none}.admin-tab{flex:0 0 auto;white-space:nowrap}.filter-tabs,.admin-tab-strip.filter-tabs{justify-content:flex-start}.filter-tabs{display:flex;gap:4px;background:var(--light);padding:4px;border-radius:var(--radius-sm);overflow-x:auto;-webkit-overflow-scrolling:touch}.filter-tabs::-webkit-scrollbar{display:none}.filter-tab{padding:8px 14px;border:none;background:transparent;border-radius:6px;font-weight:500;font-size:13px;color:var(--medium);white-space:nowrap;transition:all .2s}.filter-tab.active{background:#fff;color:var(--primary);box-shadow:var(--shadow-sm)}.banner-stack{display:grid;gap:8px;margin-bottom:8px}.banner{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:10px;border-radius:12px;padding:10px 12px;font-size:14px;line-height:1.2}.banner-success{background:#0f5132;color:#daf5e7}.banner-error{background:#5f1f1f;color:#ffe6e6}.banner-info{background:#293a5f;color:#e6eeff}.banner-warning{background:red;color:#ffe6e6}.banner-icon{font-weight:700}.banner-text{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.banner-close{appearance:none;border:0;background:transparent;color:inherit;font-size:14px;padding:4px 6px;border-radius:8px;cursor:pointer;opacity:.9}@media (hover:hover){.banner-close:hover{opacity:1}}@keyframes banner-in{0%{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:translateY(0)}}.animate-in{animation:banner-in .18s ease-out both}.click-input{display:grid;grid-template-columns:1fr auto;align-items:center;gap:8px;text-align:left}.click-input-text.placeholder{opacity:.6}.click-dd-panel{background:var(--surface-2, #1f1f1f);color:var(--text, #fff);border-radius:12px;box-shadow:0 10px 28px #00000059;padding:6px;border:1px solid rgba(255,255,255,.06)}.click-dd-list{--dd-item-h: 44px;max-height:calc(var(--dd-item-h) * var(--dd-visible-count, 4));overflow-y:auto}.click-dd-item{width:100%;min-height:var(--dd-item-h);text-align:left;padding:10px 12px;border-radius:10px;background:transparent;color:inherit;border:0;cursor:pointer}.click-dd-item.active{background:#ffffff14}.click-dd-item:active{transform:translateY(1px)}@keyframes dd-in{0%{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:translateY(0)}}.click-dd-panel.animate-in{animation:dd-in .16s ease-out both}.info-banner{background:var(--primary);border:1px solid var(--white);color:var(--white);padding:12px 16px;border-radius:6px;font-size:1.4rem;text-align:center}.warning-banner{background:#fff6e6;border:1px solid #ffe0a6;color:#7a4a12;padding:8px 10px;border-radius:6px;font-size:.9rem}.modal-overlay{position:fixed;inset:0;background:#00000059;display:grid;place-items:center;padding:16px;z-index:1000;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);animation:fadeIn .2s ease-out}.modal-card{width:100%;max-width:480px;background:#fffffff2;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);border:1px solid var(--border);padding:20px 16px;animation:slideIn .3s ease-out}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.popover{position:relative;place-items:center;z-index:1000;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);animation:fadeIn .2s ease-out}.popover-panel{width:100%;max-width:calc(100vw - 32px);background:#fff;border:2px solid var(--border);border-color:var(--primary);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);padding:12px}