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(width<=640px){h1{font-size:2rem}h2{font-size:1.5rem}h3{font-size:1.125rem}}.text-gradient{background:var(--gradient-primary);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text}.text-gradient-success{background:var(--gradient-success);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text}.app-shell{flex-direction:column;min-height:100vh;display:flex}.app-container{width:100%;max-width:1200px;margin:0 auto;padding:0 1.25rem}.page-content{flex:1;padding-top:1.5rem;padding-bottom:4rem}@media (width>=768px){.app-container{padding:0 2rem}.page-content{padding-top:2rem}}.navbar{z-index:100;background:var(--color-bg-overlay);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--color-border);transition:box-shadow 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svg{opacity:.3;width:48px;height:48px}.btn{font-family:var(--font-sans);border-radius:var(--radius-sm);cursor:pointer;transition:all var(--transition-normal);white-space:nowrap;border:none;justify-content:center;align-items:center;gap:.5rem;padding:.625rem 1.25rem;font-size:.9rem;font-weight:600;text-decoration:none;display:inline-flex}.btn-primary{background:var(--gradient-primary);color:#fff;box-shadow:var(--shadow-sm)}.btn-primary:hover{box-shadow:var(--shadow-md);filter:brightness(1.05);transform:translateY(-1px)}.btn-success{background:var(--gradient-success);color:#fff;box-shadow:var(--shadow-sm)}.btn-success:hover{box-shadow:var(--shadow-md);filter:brightness(1.05);transform:translateY(-1px)}.btn-outline{background:var(--color-bg-surface);color:var(--color-text-primary);border:1px solid 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(width<=640px){.auction-grid{grid-template-columns:1fr;gap:1rem}}.empty-state{text-align:center;background:var(--color-bg-surface);border-radius:var(--radius-lg);border:2px dashed var(--color-border);grid-column:1/-1;padding:4rem 2rem}.empty-state-icon{background:var(--color-accent-primary-light);border-radius:var(--radius-lg);width:64px;height:64px;color:var(--color-accent-primary);justify-content:center;align-items:center;margin:0 auto 1.25rem;display:flex}.empty-state h3{color:var(--color-text-primary);margin-bottom:.5rem}.empty-state p{color:var(--color-text-secondary);max-width:360px;margin:0 auto}.price-panel{background:var(--color-bg-surface);border:1px solid var(--color-border);border-radius:var(--radius-xl);box-shadow:var(--shadow-lg);padding:2rem;position:sticky;top:80px}.price-display{font-size:3.25rem;font-weight:800;font-family:var(--font-display);text-align:center;margin:.75rem 0;line-height:1}@media 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var(--color-border);border-radius:var(--radius-xl);box-shadow:var(--shadow-md);max-width:560px;padding:2rem}.form-row{grid-template-columns:1fr 1fr;gap:1rem;display:grid}@media (width<=640px){.seller-form-card{padding:1.5rem}.form-row{grid-template-columns:1fr}}.footer{border-top:1px solid var(--color-border);background:var(--color-bg-surface);margin-top:auto;padding:2rem 0}.footer-inner{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:1rem;display:flex}.footer-text{color:var(--color-text-tertiary);font-size:.8125rem}.footer-links{gap:1.5rem;display:flex}.footer-link{color:var(--color-text-secondary);transition:color var(--transition-fast);font-size:.8125rem}.footer-link:hover{color:var(--color-accent-primary)}@media (width<=640px){.footer-inner{text-align:center;flex-direction:column}}@keyframes blink{0%,to{opacity:1}50%{opacity:.3}}@keyframes gentle-pulse{0%{transform:scale(1)}50%{transform:scale(1.02)}to{transform:scale(1)}}.animate-pulse-gentle{animation:2s 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