:root{--color-primary: #1f4ea3;--color-primary-hover: #183d82;--color-primary-light: #e9f1ff;--color-primary-muted: #c7d7f5;--color-secondary: #0891b2;--color-bg: #f3f4f6;--color-surface: #ffffff;--color-surface-hover: #f9fafb;--color-border: #e5e7eb;--color-border-hover: #d1d5db;--color-text: #111827;--color-text-secondary: #6b7280;--color-text-muted: #9ca3af;--color-success: #16a34a;--color-error: #dc2626;--color-error-bg: rgba(220, 38, 38, .08);--radius: 12px;--radius-sm: 8px;--radius-lg: 16px;--shadow: 0 1px 3px rgba(0, 0, 0, .06), 0 1px 2px rgba(0, 0, 0, .04);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .07), 0 2px 4px -2px rgba(0, 0, 0, .04);--transition: .15s ease}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background-color:var(--color-bg);color:var(--color-text);line-height:1.6;min-height:100vh;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}#root{display:flex;flex-direction:column;align-items:center;min-height:100vh}.container{width:100%;max-width:720px;padding:0 1rem}.app-header{width:100%;background:var(--color-surface);border-bottom:1px solid var(--color-border);padding:.75rem 1.5rem;margin-bottom:2rem;display:flex;align-items:center;justify-content:space-between}.header-brand{display:flex;align-items:center;gap:.75rem}.header-brand img{height:28px}.header-separator{width:1px;height:20px;background:var(--color-border)}.header-brand h1{font-size:1.125rem;font-weight:600;color:var(--color-primary)}.header-right{display:flex;align-items:center;gap:.75rem}.user-name{font-size:.875rem;color:var(--color-text-secondary);font-weight:500}.header-divider{width:1px;height:16px;background:var(--color-border)}.btn-logout{background:none;border:none;color:var(--color-text-muted);font-size:.875rem;font-family:inherit;padding:0;cursor:pointer;transition:color var(--transition)}.btn-logout:hover{color:var(--color-text)}.login-card{text-align:center}.login-card h2{margin-bottom:.5rem;font-size:1.125rem}.login-card p{color:var(--color-text-secondary);margin-bottom:1.5rem;font-size:.875rem}.tagline{color:var(--color-text-secondary);font-size:.875rem;text-align:center;margin-bottom:1.5rem}.tabs{display:flex;gap:0;margin-bottom:1.5rem;border-bottom:1px solid var(--color-border)}.tab{flex:1;padding:.75rem 1rem;background:none;border:none;border-bottom:2px solid transparent;color:var(--color-text-muted);font-size:.875rem;font-weight:500;font-family:inherit;cursor:pointer;transition:color var(--transition),border-color var(--transition);display:flex;align-items:center;justify-content:center;gap:.5rem}.tab svg{flex-shrink:0}.tab:hover{color:var(--color-text-secondary)}.tab.active{color:var(--color-text);font-weight:600;border-bottom-color:var(--color-primary)}.tab.active svg{color:var(--color-primary)}.form-section{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);padding:1.75rem;margin-bottom:1.5rem;box-shadow:var(--shadow)}.form-title{font-size:1.125rem;font-weight:700;color:var(--color-text);margin-bottom:.25rem}.form-subtitle{font-size:.875rem;color:var(--color-text-secondary);margin-bottom:1.5rem;line-height:1.5}.input-group{margin-bottom:1rem}.input-group label{display:block;font-size:.875rem;font-weight:600;color:var(--color-text);margin-bottom:.5rem}.input-wrapper{position:relative;display:flex;align-items:center}.input-icon{position:absolute;left:.75rem;color:var(--color-text-muted);pointer-events:none;display:flex;align-items:center}.url-input{width:100%;padding:.75rem;background:var(--color-bg);border:1px solid var(--color-border);border-radius:var(--radius-sm);color:var(--color-text);font-size:.875rem;font-family:inherit;transition:border-color var(--transition),box-shadow var(--transition);outline:none}.url-input.has-icon{padding-left:2.5rem}.url-input:focus{border-color:var(--color-primary);box-shadow:0 0 0 3px var(--color-primary-light);background:var(--color-surface)}.url-input::placeholder{color:var(--color-text-muted)}.input-hint{font-size:.8125rem;color:var(--color-text-muted);margin-top:.5rem}.metadata-toggle{background:none;border:none;color:var(--color-primary);font-size:.875rem;font-family:inherit;cursor:pointer;padding:0;margin-top:.75rem;display:inline-block}.metadata-toggle:hover{text-decoration:underline}.metadata-fields{margin-top:1rem;display:flex;flex-direction:column;gap:.75rem}.btn-primary{width:100%;padding:.75rem 1.25rem;background:var(--color-primary);color:#fff;border:none;border-radius:var(--radius-sm);font-size:.9375rem;font-weight:600;font-family:inherit;cursor:pointer;transition:background var(--transition),transform var(--transition);display:flex;align-items:center;justify-content:center;gap:.5rem;margin-top:1rem}.btn-primary:hover:not(:disabled){background:var(--color-primary-hover)}.btn-primary:disabled{opacity:.5;cursor:not-allowed}.spinner{width:18px;height:18px;border:2px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin .6s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.error-message{background:var(--color-error-bg);border:1px solid rgba(220,38,38,.2);border-radius:var(--radius-sm);padding:.625rem .75rem;color:var(--color-error);font-size:.8125rem;margin-bottom:1rem}.result-section{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);padding:1.75rem;margin-bottom:1.5rem;box-shadow:var(--shadow);animation:fadeIn .3s ease}@keyframes fadeIn{0%{opacity:0;transform:translateY(4px)}to{opacity:1;transform:translateY(0)}}.result-label{font-size:.8125rem;font-weight:500;color:var(--color-text-secondary);margin-bottom:.5rem}.url-display{display:flex;align-items:center;gap:.5rem;background:var(--color-bg);border:1px solid var(--color-border);border-radius:var(--radius-sm);padding:.625rem .75rem;margin-bottom:1rem}.url-display .url-text{flex:1;font-size:.8125rem;color:var(--color-primary);word-break:break-all;font-family:SF Mono,Fira Code,Cascadia Code,monospace}.btn-copy,.btn-icon{background:none;border:none;color:var(--color-text-muted);cursor:pointer;padding:4px;border-radius:4px;transition:color var(--transition);flex-shrink:0;display:flex;align-items:center;justify-content:center}.btn-copy:hover,.btn-icon:hover{color:var(--color-text)}.btn-copy.copied{color:var(--color-success)}.image-preview{width:100%;max-height:300px;object-fit:contain;border-radius:var(--radius-sm);margin-bottom:1rem;background:var(--color-bg);border:1px solid var(--color-border)}.detail-cards{display:grid;grid-template-columns:repeat(4,1fr);gap:.5rem;margin-bottom:1rem}.detail-card{background:var(--color-bg);border-radius:var(--radius-sm);padding:.625rem;text-align:center}.detail-card .label{font-size:.625rem;color:var(--color-text-muted);text-transform:uppercase;letter-spacing:.05em;margin-bottom:.125rem}.detail-card .value{font-size:.8125rem;font-weight:600;color:var(--color-text)}.btn-secondary{width:100%;padding:.5rem .75rem;background:transparent;border:1px solid var(--color-border);border-radius:var(--radius-sm);color:var(--color-text-secondary);font-size:.8125rem;font-family:inherit;cursor:pointer;transition:background var(--transition),color var(--transition)}.btn-secondary:hover{background:var(--color-surface-hover);color:var(--color-text)}.history-section{animation:fadeIn .3s ease}.summary-bar{display:flex;align-items:center;gap:1.25rem;margin-bottom:1.5rem;flex-wrap:wrap}.stat-item{display:flex;align-items:center;gap:.375rem;font-size:.875rem;color:var(--color-text-secondary)}.stat-icon{width:28px;height:28px;border-radius:6px;background:var(--color-primary-light);display:flex;align-items:center;justify-content:center;color:var(--color-primary);flex-shrink:0}.stat-icon svg{width:14px;height:14px}.stat-value{font-weight:700;color:var(--color-text)}.stat-label{color:var(--color-text-muted)}.stat-spacer{flex:1}.btn-refresh{background:none;border:none;color:var(--color-text-muted);cursor:pointer;padding:6px;border-radius:var(--radius-sm);transition:color var(--transition),background var(--transition);display:flex;align-items:center;justify-content:center}.btn-refresh:hover{color:var(--color-text);background:var(--color-surface-hover)}.btn-refresh:disabled{opacity:.5;cursor:not-allowed}.history-empty{text-align:center;color:var(--color-text-muted);padding:2rem 0;font-size:.875rem}.history-list{display:flex;flex-direction:column;gap:.5rem}.history-row{display:flex;align-items:center;gap:.75rem;background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);padding:.875rem;box-shadow:var(--shadow);transition:border-color var(--transition)}.history-row:hover{border-color:var(--color-border-hover)}.history-row.expired{opacity:.55}.history-thumb{width:48px;height:48px;border-radius:var(--radius-sm);overflow:hidden;flex-shrink:0;background:var(--color-bg);border:1px solid var(--color-border);display:flex;align-items:center;justify-content:center;color:var(--color-text-muted)}.history-thumb img{width:100%;height:100%;object-fit:cover}.history-details{flex:1;min-width:0}.history-url-row{display:flex;align-items:center;gap:.5rem;margin-bottom:.25rem}.history-url{font-size:.8125rem;color:var(--color-text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.badge-expired{background:var(--color-error-bg);color:var(--color-error);padding:.125rem .5rem;border-radius:4px;font-size:.6875rem;font-weight:600;flex-shrink:0}.badge-admin{background:var(--color-primary-light);color:var(--color-primary);padding:.125rem .5rem;border-radius:4px;font-size:.6875rem;font-weight:600;flex-shrink:0}.history-meta{display:flex;flex-wrap:wrap;align-items:center;gap:.625rem;font-size:.75rem;color:var(--color-text-muted)}.history-meta .savings{color:var(--color-success);font-weight:600}.history-meta .views{display:flex;align-items:center;gap:.25rem}.history-meta .views svg{width:12px;height:12px}.history-actions{display:flex;align-items:center;gap:.25rem;flex-shrink:0}.detail-cards-2col{display:grid;grid-template-columns:1fr 1fr;gap:.5rem;margin-bottom:1rem}.detail-cards-1col{display:grid;grid-template-columns:1fr;gap:.5rem;margin-bottom:1rem}.detail-card .value-sm{font-size:.75rem;font-weight:500;color:var(--color-text)}.detail-card .value-xs{font-size:.6875rem;font-weight:400;color:var(--color-text);word-break:break-all}.detail-card .value-body{font-size:.75rem;font-weight:400;color:var(--color-text);line-height:1.4}.platform-links{margin-top:1rem}.platform-links-label{display:block;font-size:.875rem;font-weight:600;margin-bottom:.5rem}.platform-row{margin-bottom:.5rem}.platform-name{font-weight:600;font-size:.75rem;text-transform:capitalize;min-width:70px}.platform-dims{font-size:.6875rem}.preview-actions{margin-top:1rem}.footer{margin-top:2rem;padding-bottom:2rem}.features{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem}.feature{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);padding:1.5rem 1.25rem;text-align:center;box-shadow:var(--shadow)}.feature-icon{width:40px;height:40px;border-radius:10px;background:var(--color-primary-light);display:flex;align-items:center;justify-content:center;margin:0 auto .75rem;color:var(--color-primary)}.feature-icon svg{width:20px;height:20px}.feature .title{font-size:.875rem;font-weight:600;color:var(--color-text);margin-bottom:.25rem}.feature .desc{font-size:.8125rem;color:var(--color-text-muted);line-height:1.4}@media(max-width:480px){.detail-cards{grid-template-columns:repeat(2,1fr)}.features{grid-template-columns:1fr}.app-header{flex-direction:column;gap:.5rem;text-align:center}.header-brand h1{font-size:1rem}.summary-bar{gap:.75rem}.tab{font-size:.8125rem;gap:.25rem;padding:.75rem .5rem}}