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.75rem;background:#4caf50;color:#fff;border-radius:12px;font-size:.75rem;font-weight:600}.btn-delete-card{width:28px;height:28px;border:none;background:transparent;color:#999;font-size:1.2rem;cursor:pointer;border-radius:50%;display:flex;align-items:center;justify-content:center;transition:all .2s;flex-shrink:0;margin-left:.5rem}.btn-delete-card:hover:not(:disabled){background:#ffebee;color:#d32f2f}.btn-delete-card:disabled{opacity:.5;cursor:not-allowed}.btn-add-card{width:100%;padding:.75rem;border:2px dashed #ccc;background:#fff;color:#666;border-radius:8px;cursor:pointer;font-size:1rem;transition:all .2s;margin-bottom:1.5rem}.btn-add-card:hover{border-color:#ff4081;color:#ff4081;background:#fff5f8}.no-cards{text-align:center;padding:2rem 0}.no-cards p{color:#666;margin-bottom:1rem}.form-actions{display:flex;flex-direction:column;gap:1rem;margin-top:1.5rem}.btn-cancel,.btn-confirm{width:100%;padding:.75rem 1.5rem;border:none;border-radius:4px;font-size:1rem;cursor:pointer;transition:all .2s}.btn-cancel{background:#f5f5f5;color:#666}.btn-cancel:hover{background:#e0e0e0}.btn-confirm{background:#ff4081;color:#fff}.btn-confirm:hover:not(:disabled){background:#f50057}.btn-confirm:disabled{opacity:.5;cursor:not-allowed}.coupon-selector{margin:20px 0;border:1px solid #e0e0e0;border-radius:8px;overflow:hidden;background:#fff}.coupon-selector-header{display:flex;justify-content:space-between;align-items:center;padding:16px;cursor:pointer;background:#f8f9fa;transition:background-color .2s}.coupon-selector-header:hover{background:#e9ecef}.coupon-label{display:flex;align-items:center;gap:8px;font-weight:500;color:#333}.coupon-icon{font-size:20px}.discount-badge{background:#ff4757;color:#fff;padding:2px 8px;border-radius:12px;font-size:12px;font-weight:600;margin-left:8px}.expand-icon{color:#666;font-size:12px;transition:transform .2s}.expand-icon.expanded{transform:rotate(180deg)}.loading-text{color:#666;font-size:14px}.error-text{color:#ff4757;font-size:14px}.coupon-list{border-top:1px solid #e0e0e0;max-height:400px;overflow-y:auto}.coupon-item{padding:16px;border-bottom:1px solid #f0f0f0;cursor:pointer;transition:background-color .2s}.coupon-item:last-child{border-bottom:none}.coupon-item:hover{background:#f8f9fa}.coupon-item.selected{background:#e3f2fd;border-left:4px solid #2196f3}.coupon-item-content{display:flex;flex-direction:column;gap:8px}.coupon-item-header{display:flex;justify-content:space-between;align-items:flex-start;gap:12px}.coupon-item-name-wrapper{flex:0 1 80%;min-width:0}.coupon-item-name{font-weight:600;color:#333;font-size:16px;word-wrap:break-word;word-break:break-word}.coupon-item-discount{color:#ff4757;font-weight:700;font-size:18px;flex-shrink:0;white-space:nowrap}.coupon-item-details{display:flex;gap:12px;font-size:13px;color:#666}.coupon-item-code{background:#f0f0f0;padding:2px 8px;border-radius:4px;font-family:monospace;font-weight:500}.coupon-item-minimum{color:#666}.coupon-item-validity{font-size:12px;color:#999}.coupon-remaining{color:#2196f3;font-weight:500}.coupon-item.disabled{opacity:.5;cursor:not-allowed}.coupon-item.disabled:hover{background:inherit}.coupon-item-unavailable{font-size:12px;color:#ff4757;font-weight:500}@media(max-width:768px){.coupon-selector-header{padding:12px}.coupon-label{font-size:14px}.coupon-item{padding:12px}.coupon-item-name{font-size:14px}.coupon-item-discount{font-size:16px}.coupon-item-details{flex-direction:column;gap:4px}}.rss-feed-section{margin-bottom:8px}.rss-feed-section h2{font-size:1.2rem;margin-bottom:12px;color:#333}.rss-feed-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:8px}.rss-feed-item{border:1px solid #e8e8e8;border-radius:8px;overflow:hidden;transition:box-shadow .2s}.rss-feed-item:hover{box-shadow:0 2px 8px #00000014}.rss-feed-link{display:flex;flex-direction:column;gap:4px;padding:12px 16px;text-decoration:none;color:inherit}.rss-feed-title{font-weight:600;font-size:.95rem;color:#1a73e8;line-height:1.4}.rss-feed-description{font-size:.85rem;color:#666;line-height:1.5}.teacher-detail-container{max-width:900px;margin:0 auto;padding:20px}.payment-modal{max-width:600px;width:90%;padding:24px}.payment-modal .payment-method-selector,.payment-modal .payment-method-form{max-width:none;padding:0;box-shadow:none;border-radius:0}.modal-title{margin:0 0 20px;font-size:24px;font-weight:600;color:#333;text-align:center}.back-button{background:#6366f1;color:#fff;border:none;padding:10px 20px;border-radius:8px;font-size:1rem;cursor:pointer;margin-bottom:20px;transition:background .2s}.back-button:hover{background:#4f46e5}.error-message{text-align:center;padding:60px 20px}.teacher-detail-card{background:#fff;border-radius:12px;box-shadow:0 4px 16px #0000001a;overflow:hidden}.teacher-detail-header{display:flex;gap:30px;padding:30px;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff}.teacher-detail-image-container{position:relative;flex-shrink:0}.teacher-detail-image{width:200px;height:200px;border-radius:12px;object-fit:cover;border:4px solid white}.unavailable-overlay{position:absolute;inset:0;background:#000000b3;display:flex;align-items:center;justify-content:center;border-radius:12px;color:#fff;font-size:1.2rem;font-weight:700}.teacher-detail-info{flex:1}.teacher-detail-name{margin:0 0 8px;font-size:2rem;font-weight:700}.teacher-age{font-size:1rem;opacity:.9;margin-bottom:16px}.teacher-rating-large{display:flex;align-items:center;gap:6px;margin-bottom:16px;font-size:1.2rem}.star{color:#fbbf24}.rating-label{opacity:.9;font-size:.9rem}.line-add-friend{text-align:center;margin-bottom:16px}.line-add-friend img{vertical-align:middle}.teacher-specialties-large{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:20px}.specialty-tag-large{background:#fff3;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);padding:6px 16px;border-radius:20px;font-size:.9rem;font-weight:500;border:1px solid rgba(255,255,255,.3)}.price-large{display:flex;align-items:baseline;gap:4px}.price-large .price-amount{font-size:2rem;font-weight:700;color:#fff}.price-large .price-unit{font-size:1rem;color:#fff;opacity:1}.teacher-detail-body{padding:30px}.detail-section{margin-bottom:30px}.detail-section h2{font-size:1.5rem;color:#333;margin:0 0 12px;padding-bottom:8px;border-bottom:2px solid #667eea}.detail-section p{color:#666;line-height:1.8;margin:0}.specialties-list{list-style:none;padding:0;margin:0}.specialties-list li{padding:8px 0;color:#666;border-bottom:1px solid #e5e7eb}.specialties-list li:last-child{border-bottom:none}.specialties-list li:before{content:"✓";color:#667eea;font-weight:700;margin-right:12px}.call-section{padding:30px;background:#f9fafb;border-top:1px solid #e5e7eb}.start-call-button{width:100%;background:linear-gradient(135deg,#10b981,#059669);color:#fff;border:none;padding:20px;border-radius:12px;font-size:1.3rem;font-weight:700;cursor:pointer;transition:transform .2s,box-shadow .2s;display:flex;align-items:center;justify-content:center;gap:12px}.start-call-button:hover:not(.disabled){transform:translateY(-2px);box-shadow:0 8px 24px #10b9814d}.start-call-button.disabled{background:#9ca3af;cursor:not-allowed}.call-icon{font-size:1.5rem}.mic-permission-error{margin-top:16px;padding:16px;background:#fef2f2;border:1px solid #fecaca;border-radius:8px;color:#dc2626;display:flex;align-items:center;gap:12px;font-size:.95rem;line-height:1.5}.mic-permission-error .error-icon{font-size:1.5rem;flex-shrink:0}.call-active{text-align:center}.call-status{margin-bottom:20px;padding:30px;background:#fff;border-radius:12px;border:2px solid #10b981}.calling-animation{position:relative;display:inline-block;margin-bottom:20px}.pulse{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:80px;height:80px;border-radius:50%;background:#10b981;animation:pulse 2s ease-out infinite;opacity:0}@keyframes pulse{0%{transform:translate(-50%,-50%) scale(.5);opacity:1}to{transform:translate(-50%,-50%) scale(1.5);opacity:0}}.call-icon-active{font-size:3rem;position:relative;z-index:1}.call-info{margin-top:20px}.calling-text{font-size:1.5rem;font-weight:700;color:#10b981;margin-bottom:12px}.call-duration{font-size:2.5rem;font-weight:700;color:#333;font-family:Courier New,monospace;margin-bottom:8px}.call-cost{font-size:1.2rem;color:#666}.end-call-button{width:100%;background:linear-gradient(135deg,#ef4444,#dc2626);color:#fff;border:none;padding:16px;border-radius:12px;font-size:1.2rem;font-weight:700;cursor:pointer;transition:transform .2s,box-shadow .2s}.end-call-button:hover{transform:translateY(-2px);box-shadow:0 8px 24px #ef44444d}.notice{padding:30px;background:#fef3c7;border-top:1px solid #fbbf24}.notice h3{margin:0 0 16px;color:#92400e;font-size:1.2rem}.notice ul{margin:0;padding-left:20px;color:#78350f;line-height:1.8}.notice li{margin-bottom:8px}.modal-overlay{position:fixed;inset:0;background:#00000080;display:flex;align-items:center;justify-content:center;z-index:1000;padding:20px}.modal-content{background:#fff;border-radius:12px;max-width:600px;width:100%;max-height:90vh;overflow-y:auto;box-shadow:0 20px 60px #0000004d}.calling-modal{padding:40px;text-align:center}.calling-animation-large{position:relative;display:inline-block;margin-bottom:30px}.pulse-large{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:120px;height:120px;border-radius:50%;background:#10b981;animation:pulse 2s ease-out infinite;opacity:0}.call-icon-large{font-size:4rem;position:relative;z-index:1}.calling-modal h2{font-size:1.5rem;color:#333;margin:0 0 12px}.calling-modal p{color:#666;font-size:1rem}.error-modal{padding:40px;text-align:center}.error-icon{font-size:4rem;margin-bottom:20px}.error-modal h2{font-size:1.5rem;color:#ef4444;margin:0 0 12px}.error-modal p{color:#666;font-size:1rem;margin-bottom:24px}.error-modal-button{background:#6366f1;color:#fff;border:none;padding:12px 32px;border-radius:8px;font-size:1rem;font-weight:600;cursor:pointer;transition:background .2s}.error-modal-button:hover{background:#4f46e5}.unavailable-overlay.offline{background:#6b7280cc}.availability.offline{background:#6b7280}.restriction-modal{padding:40px;text-align:center;max-width:500px}.restriction-modal h2{font-size:1.5rem;color:#ef4444;margin:0 0 12px}.restriction-modal p{color:#666;font-size:1rem;margin-bottom:20px}.unpaid-session-list{text-align:left;margin-bottom:24px}.unpaid-session-item{display:flex;justify-content:space-between;align-items:center;padding:12px 16px;border:1px solid #e5e7eb;border-radius:8px;margin-bottom:8px;background:#fafafa}.unpaid-session-info{display:flex;align-items:center;gap:8px}.unpaid-amount{font-weight:600;color:#333;font-size:1rem}.unpaid-date{color:#999;font-size:.85rem}.payment-link-button{display:inline-block;background:#6366f1;color:#fff;text-decoration:none;padding:8px 16px;border-radius:6px;font-size:.85rem;font-weight:500;transition:background .2s;white-space:nowrap}.payment-link-button:hover{background:#4f46e5}.payment-link-unavailable{color:#999;font-size:.85rem;font-style:italic}.coupon-exhausted-actions{display:flex;flex-direction:column;gap:12px;margin-top:20px}.btn-proceed-without-coupon{background:linear-gradient(135deg,#10b981,#059669);color:#fff;border:none;padding:14px 24px;border-radius:8px;font-size:1rem;font-weight:600;cursor:pointer;transition:transform .2s,box-shadow .2s}.btn-proceed-without-coupon:hover{transform:translateY(-1px);box-shadow:0 4px 12px #10b9814d}.btn-reselect-coupon{background:#fff;color:#6366f1;border:2px solid #6366f1;padding:12px 24px;border-radius:8px;font-size:1rem;font-weight:600;cursor:pointer;transition:background .2s}.btn-reselect-coupon:hover{background:#f0f0ff}.call-section-fixed{display:none}@media(max-width:768px){.teacher-detail-header{flex-direction:column;align-items:center;text-align:center}.teacher-detail-image{width:150px;height:150px}.teacher-detail-name{font-size:1.5rem}.start-call-button{font-size:1.1rem;padding:16px}.call-duration{font-size:2rem}.call-section{display:none}.call-section-fixed{display:block;position:fixed;bottom:0;left:0;right:0;padding:12px 16px;padding-bottom:calc(12px + env(safe-area-inset-bottom));background:#fffffff2;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-top:1px solid #e5e7eb;z-index:100;box-shadow:0 -2px 12px #0000001a}.call-section-fixed .start-call-button,.call-section-fixed .end-call-button{margin:0}.teacher-detail-container{padding-bottom:80px}}.confirm-email-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#667eea,#764ba2);padding:2rem 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input:disabled{background-color:#f3f4f6;cursor:not-allowed}.form-hint{display:block;margin-top:.5rem;font-size:.875rem;color:#6b7280}.primary-button{width:100%;padding:.875rem;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;border-radius:.5rem;font-size:1rem;font-weight:600;cursor:pointer;transition:all .2s}.primary-button:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 10px 20px #667eea4d}.primary-button:disabled{opacity:.6;cursor:not-allowed;transform:none}.error-message{background-color:#fee;color:#c33;padding:.875rem;border-radius:.5rem;margin-bottom:1.5rem;font-size:.95rem;border-left:4px solid #c33}.success-message{background-color:#d1fae5;color:#065f46;padding:.875rem;border-radius:.5rem;margin-bottom:1.5rem;font-size:.95rem;border-left:4px solid #10b981}.form-footer{text-align:center;padding-top:1rem;border-top:1px solid #e5e7eb}.form-footer p{color:#6b7280;font-size:.95rem}.link-button{background:none;border:none;color:#667eea;font-weight:600;cursor:pointer;padding:0 .25rem;text-decoration:underline;font-size:.95rem}.link-button:hover:not(:disabled){color:#764ba2}.link-button:disabled{opacity:.5;cursor:not-allowed}.success-card{text-align:center}.success-icon{width:80px;height:80px;background:linear-gradient(135deg,#10b981,#059669);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:3rem;margin:0 auto 1.5rem;animation:scaleIn .5s ease-out}@keyframes scaleIn{0%{transform:scale(0)}to{transform:scale(1)}}.success-card h1{color:#065f46;margin-bottom:1rem}.success-card p{color:#6b7280;margin-bottom:1rem;font-size:1rem}.redirect-message{font-size:.875rem!important;color:#9ca3af!important;margin-bottom:2rem!important}@media(max-width:640px){.confirm-email-page{padding:1rem}.confirm-email-card,.success-card{padding:2rem 1.5rem}.confirm-email-card h1,.success-card h1{font-size:1.5rem}}.call-screen{min-height:100vh;background:linear-gradient(135deg,#667eea,#764ba2)!important;display:flex;flex-direction:column;align-items:center;justify-content:space-between;padding:40px 20px;color:#fff!important}.call-info{text-align:center;width:100%}.call-status{font-size:18px;font-weight:500;margin-bottom:10px;color:#333!important}.call-avatar{flex:1;display:flex;align-items:center;justify-content:center}.avatar-circle{width:200px;height:200px;border-radius:50%;background:#fff3;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);display:flex;align-items:center;justify-content:center;border:4px solid rgba(255,255,255,.3);animation:pulse 2s ease-in-out infinite}@keyframes pulse{0%,to{transform:scale(1);box-shadow:0 0 #fff6}50%{transform:scale(1.05);box-shadow:0 0 0 20px #fff0}}.avatar-icon{font-size:80px}.call-controls{display:flex;gap:20px;align-items:center;justify-content:center;width:100%;max-width:400px}.control-button{width:70px;height:70px;border-radius:50%;border:none;background:#fff3;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);color:#fff;font-size:32px;cursor:pointer;transition:all .3s;display:flex;align-items:center;justify-content:center}.control-button:hover{background:#ffffff4d;transform:translateY(-2px);box-shadow:0 4px 12px #0003}.control-button.active{background:#f44336cc}.end-call-button{width:70px;height:70px;border-radius:50%;border:none;background:#f44336;color:#fff;font-size:14px;font-weight:700;cursor:pointer;transition:all .3s;box-shadow:0 4px 12px #f4433666}.end-call-button:hover{background:#d32f2f;transform:translateY(-2px);box-shadow:0 6px 16px #f4433699}@media(max-width:768px){.call-screen{justify-content:flex-start;gap:30px;padding:40px 20px 60px}.call-avatar{flex:0}.avatar-circle{width:150px;height:150px}.avatar-icon{font-size:60px}.control-button{width:60px;height:60px;font-size:28px}.end-call-button{width:60px;height:60px;font-size:13px}}.receipt-screen{min-height:100vh;background:linear-gradient(135deg,#667eea,#764ba2);display:flex;align-items:center;justify-content:center;padding:20px}.loading-container{background:#fff;border-radius:16px;padding:40px;text-align:center;box-shadow:0 20px 60px #0000004d;max-width:400px;width:100%}.loading-container h2{color:#333;margin:20px 0 10px}.loading-container p{color:#666;margin:10px 0}.loading-spinner{width:60px;height:60px;border:4px solid #f3f3f3;border-top:4px solid #667eea;border-radius:50%;animation:spin 1s linear infinite;margin:0 auto 20px}@keyframes spin{to{transform:rotate(360deg)}}.loading-note{margin-top:10px;opacity:.8;font-size:14px}.error-container{background:#fff;border-radius:16px;padding:40px;text-align:center;box-shadow:0 20px 60px #0000004d;max-width:500px;width:100%}.error-container .error-icon{font-size:64px;margin-bottom:20px}.error-container h2{color:#333;margin:0 0 15px}.error-container p{color:#666;margin:10px 0 30px;line-height:1.6}.error-container button{padding:12px 30px;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;border-radius:8px;font-size:16px;font-weight:700;cursor:pointer;transition:all .2s}.error-container button:hover{transform:translateY(-2px);box-shadow:0 4px 12px #667eea66}.receipt-container{background:#fff;border-radius:16px;box-shadow:0 20px 60px #0000004d;max-width:600px;width:100%;overflow:hidden}.receipt-header{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;padding:40px;text-align:center}.receipt-header.error{background:linear-gradient(135deg,#ff6b6b,#ee5a6f)}.receipt-icon{width:80px;height:80px;background:#fff;color:#667eea;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:48px;margin:0 auto 20px;font-weight:700}.receipt-icon.error{color:#ff6b6b}.receipt-header h1{margin:0 0 10px;font-size:32px}.receipt-header p{margin:0;opacity:.9}.receipt-details{padding:40px}.receipt-section{margin-bottom:30px}.receipt-section:last-child{margin-bottom:0}.receipt-section h2{font-size:18px;color:#333;margin:0 0 15px;padding-bottom:10px;border-bottom:2px solid #f0f0f0}.receipt-row{display:flex;justify-content:space-between;padding:12px 0;border-bottom:1px solid #f5f5f5}.receipt-row:last-child{border-bottom:none}.receipt-row.total{margin-top:10px;padding-top:15px;border-top:2px solid #333;font-weight:700;font-size:18px}.receipt-row .label{color:#666}.receipt-row .value{color:#333;font-weight:500}.receipt-row .value.success{color:#4caf50;font-weight:700}.receipt-row .session-id{font-family:monospace;font-size:12px;color:#999}.receipt-actions{padding:20px 40px 40px;display:flex;gap:15px}.receipt-actions button{flex:1;padding:15px;border:none;border-radius:8px;font-size:16px;font-weight:700;cursor:pointer;transition:all .2s}.primary-button{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff}.primary-button:hover{transform:translateY(-2px);box-shadow:0 4px 12px #667eea66}.secondary-button{background:#f5f5f5;color:#333}.secondary-button:hover{background:#e0e0e0}.receipt-row.discount{color:#ff4757}.receipt-row.discount .label{display:flex;align-items:center;gap:8px}.coupon-code{font-size:12px;background:#fff3cd;color:#856404;padding:2px 6px;border-radius:4px;font-family:monospace}.discount-value{color:#ff4757;font-weight:600}.error-section{background:#fff3cd;border:1px solid #ffc107;border-radius:8px;padding:20px;margin-bottom:20px}.error-section h2{color:#856404;border-bottom-color:#ffc107}.error-message{color:#856404;margin:0;line-height:1.6}.payment-link-section{background:#e3f2fd;border:2px solid #2196F3;border-radius:8px;padding:20px;text-align:center}.payment-link-section h2{color:#1976d2;border-bottom-color:#2196f3}.payment-link-section p{margin:10px 0;color:#333}.payment-link-section .note{font-size:14px;color:#666;margin-bottom:20px}.payment-link-button{display:inline-block;background:linear-gradient(135deg,#2196f3,#1976d2);color:#fff;padding:15px 40px;border-radius:8px;text-decoration:none;font-weight:700;font-size:18px;transition:all .2s;margin:20px 0}.payment-link-button:hover{transform:translateY(-2px);box-shadow:0 4px 12px #2196f366}.email-note{font-size:13px;color:#666;margin-top:15px;font-style:italic}@media print{.receipt-screen{background:#fff}.receipt-actions{display:none}}@media(max-width:768px){.receipt-details{padding:30px 20px}.receipt-actions{padding:15px 20px 30px;flex-direction:column}.receipt-actions button{width:100%}}.coupon-campaign{min-height:100vh;background:linear-gradient(135deg,#667eea,#764ba2)}.coupon-campaign-container{max-width:600px;margin:0 auto;padding:80px 20px 40px}.loading,.error-message{background:#fff;border-radius:16px;padding:40px;text-align:center;box-shadow:0 10px 40px #0000001a}.error-message h2{color:#e53e3e;margin-bottom:16px;font-size:24px}.error-message p{color:#4a5568;margin-bottom:24px;font-size:16px}.coupon-card{background:#fff;border-radius:16px;overflow:hidden;box-shadow:0 10px 40px #0000001a}.coupon-header{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;padding:32px 24px;text-align:center}.coupon-header h1{font-size:28px;font-weight:700;margin:0}.coupon-content{padding:32px 24px}.discount-badge{display:flex;flex-direction:column;align-items:center;justify-content:center;background:linear-gradient(135deg,#667eea,#764ba2);border-radius:12px;padding:32px 24px;margin-bottom:24px;box-shadow:0 4px 12px #667eea4d}.discount-amount{font-size:48px;font-weight:700;color:#fff!important;line-height:1;margin-bottom:8px;text-shadow:0 2px 4px rgba(0,0,0,.2)}.discount-label{font-size:18px;color:#fff!important;font-weight:500;text-shadow:0 1px 2px rgba(0,0,0,.2)}.campaign-description{background:#f7fafc;border-radius:8px;padding:16px;margin-bottom:24px}.campaign-description p{color:#2d3748;font-size:15px;line-height:1.6;margin:0}.coupon-details{background:#f7fafc;border-radius:8px;padding:20px;margin-bottom:24px}.detail-item{display:flex;justify-content:space-between;align-items:center;padding:12px 0;border-bottom:1px solid #e2e8f0}.detail-item:last-child{border-bottom:none}.detail-label{color:#718096;font-size:14px;font-weight:500}.detail-value{color:#2d3748;font-size:15px;font-weight:600}.error-banner{background:#fff5f5;border:1px solid #fc8181;border-radius:8px;padding:12px 16px;margin-bottom:16px;color:#c53030;font-size:14px;text-align:center}.btn-acquire{width:100%;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;border-radius:8px;padding:16px;font-size:18px;font-weight:600;cursor:pointer;transition:all .3s ease;box-shadow:0 4px 12px #667eea66}.btn-acquire:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 6px 16px #667eea80}.btn-acquire:disabled{opacity:.6;cursor:not-allowed}.btn-primary{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;border-radius:8px;padding:12px 24px;font-size:16px;font-weight:600;cursor:pointer;transition:all .3s ease}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 4px 12px #667eea66}.usage-note{margin-top:16px;text-align:center}.usage-note p{color:#718096;font-size:13px;margin:0}@media(max-width:768px){.coupon-campaign-container{padding:70px 16px 24px}.coupon-header h1{font-size:24px}.discount-amount{font-size:40px}.discount-label{font-size:16px}.coupon-content{padding:24px 16px}}.coupon-acquired{min-height:100vh;background:linear-gradient(135deg,#667eea,#764ba2)}.coupon-acquired-container{max-width:600px;margin:0 auto;padding:80px 20px 40px}.loading{background:#fff;border-radius:16px;padding:40px;text-align:center;box-shadow:0 10px 40px #0000001a}.success-card{background:#fff;border-radius:16px;padding:48px 32px;text-align:center;box-shadow:0 10px 40px #0000001a}.success-icon{display:flex;justify-content:center;margin-bottom:24px;animation:scaleIn .5s ease-out}@keyframes scaleIn{0%{transform:scale(0);opacity:0}50%{transform:scale(1.1)}to{transform:scale(1);opacity:1}}.success-card h1{font-size:28px;font-weight:700;color:#2d3748;margin-bottom:32px}.coupon-info{background:linear-gradient(135deg,#f7fafc,#edf2f7);border-radius:12px;padding:24px;margin-bottom:32px}.coupon-info h2{font-size:20px;font-weight:600;color:#2d3748;margin-bottom:16px}.discount-info{display:flex;flex-direction:column;align-items:center;gap:4px}.coupon-acquired .discount-amount{font-size:36px;font-weight:700;color:#667eea!important}.coupon-acquired .discount-label{font-size:16px;color:#718096!important;font-weight:500}.usage-instructions{background:#f7fafc;border-radius:12px;padding:24px;margin-bottom:32px;text-align:left}.usage-instructions h3{font-size:18px;font-weight:600;color:#2d3748;margin-bottom:16px;text-align:center}.usage-instructions ol{margin:0 0 16px;padding-left:24px}.usage-instructions li{color:#4a5568;font-size:15px;line-height:1.8;margin-bottom:8px}.usage-instructions .note{background:#fff5f5;border-left:4px solid #fc8181;padding:12px 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