.coupon-container{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:16px;margin:20px 0;max-width:100%}.coupon-card{background:#fff;border:2px solid #e5e7eb;border-radius:8px;padding:16px;position:relative;transition:all .2s ease;box-shadow:0 1px 3px rgba(0,0,0,.1);display:flex;flex-direction:column;height:100%}.coupon-card:hover{border-color:#3b82f6;box-shadow:0 4px 12px rgba(59,130,246,.15)}.coupon-info{flex:1;margin-bottom:12px}.coupon-title{font-size:16px;font-weight:600;color:#1f2937;margin:0 0 4px;display:block}.coupon-desc{font-size:14px;color:#6b7280;margin:0 0 8px;line-height:1.4}.coupon-code-row{display:flex;align-items:center;gap:8px;margin-bottom:8px}.coupon-code{font-family:monaco,menlo,consolas,monospace;font-size:14px;background:#f3f4f6;color:#374151;padding:4px 8px;border-radius:4px;border:1px dashed #d1d5db;display:inline-block}.coupon-discount{font-size:14px;font-weight:600;color:#ef4444;background:#fee2e2;padding:4px 8px;border-radius:4px;white-space:nowrap}.coupon-expire{font-size:12px;color:#ef4444;margin-bottom:12px;min-height:16px}.coupon-info:not(:has(.coupon-expire))::after{content:"";display:block;height:28px}.coupon-button{width:100%;background:linear-gradient(135deg,#3b82f6,#1d4ed8);color:#fff;border:none;padding:10px 16px;border-radius:6px;font-size:14px;font-weight:500;cursor:pointer;transition:all .2s ease;position:relative;overflow:hidden;margin-top:auto;flex-shrink:0}.coupon-button:hover{background:linear-gradient(135deg,#2563eb,#1e40af);transform:translateY(-1px)}.coupon-button:active{transform:translateY(0)}.coupon-button.copied{background:linear-gradient(135deg,#10b981,#059669)}@media(max-width:640px){.coupon-container{grid-template-columns:1fr;gap:12px}.coupon-card{padding:12px}}.coupon-row-3{grid-template-columns:repeat(3,1fr)}@media(max-width:768px){.coupon-row-3{grid-template-columns:1fr}}.toast{position:fixed;top:20px;right:20px;background:#1f2937;color:#fff;padding:12px 20px;border-radius:6px;box-shadow:0 4px 12px rgba(0,0,0,.15);z-index:1000;transform:translateX(calc(100% + 20px));opacity:0;transition:transform .3s ease,opacity .3s ease}.toast.show{transform:translateX(0);opacity:1}.toast.hide{transform:translateX(calc(100% + 20px));opacity:0}@supports not (selector(:has(*))){.coupon-info{min-height:calc(100% - 52px);padding-bottom:28px}}