:root{color-scheme:light;font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:#f4f6fb;color:#111827}*{box-sizing:border-box}body,html,#root{margin:0;min-height:100vh}body{background:#f4f6fb}.app-shell{min-height:100vh}.main-panel{display:flex;flex-direction:column;min-height:100vh;margin-left:260px}.header-bar{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:24px;background:#fff;border-bottom:1px solid #e5e7eb;box-shadow:0 10px 30px #0f172a0d}.header-title{font-size:1.25rem;font-weight:700}.header-subtitle{color:#475569;margin-top:6px}.header-status-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,auto));gap:12px;align-items:center}.status-pill{display:flex;flex-direction:column;gap:6px;padding:14px 18px;border-radius:16px;background:#f8fafc;border:1px solid #e2e8f0}.status-label{font-size:.75rem;color:#64748b;text-transform:uppercase;letter-spacing:.08em}.status-helper{color:#64748b;font-size:.84rem;word-break:break-word}.content-area{padding:24px;background:#f4f6fb;flex:1}.page-card{background:#fff;border-radius:18px;box-shadow:0 20px 45px #0f172a14;padding:24px;margin-bottom:24px}.page-title{font-size:1.35rem;margin:0 0 16px}.section-title{font-size:1rem;margin:0 0 12px;font-weight:600}.flex-row{display:flex;gap:16px;flex-wrap:wrap}.card-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:16px}.info-card{background:#eef2ff;border-radius:16px;padding:18px}.info-card strong{display:block;margin-bottom:10px;color:#3730a3}.table{width:100%;border-collapse:collapse}.table th,.table td{text-align:left;padding:12px 14px;border-bottom:1px solid #e5e7eb}.table th{font-size:.95rem;color:#374151}.table tbody tr:hover{background:#4f46e50a}.link-button,.button{display:inline-flex;align-items:center;justify-content:center;padding:10px 16px;border-radius:12px;border:none;cursor:pointer;text-decoration:none;color:#fff;background:#4f46e5}.button-secondary{background:#6b7280;color:#fff}.button-secondary:hover{background:#4b5563}.disabled-button{opacity:.55;cursor:not-allowed}.feature-edit-input{width:100%;padding:12px 14px;border-radius:12px;border:1px solid #d1d5db;font-size:.95rem;font-family:inherit;background:#fff}.input-search{width:100%;max-width:380px;padding:12px 14px;border-radius:14px;border:1px solid #d1d5db;font:inherit;background:#fff}.select-input{width:100%;padding:12px 14px;border-radius:14px;border:1px solid #d1d5db;font:inherit;background:#fff}.form-control{display:grid;gap:12px}.form-control label{font-size:.9rem;font-weight:600;color:#334155}.attribute-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px;margin-bottom:24px}.attribute-field{padding:18px;background:#f8fafc;border-radius:14px;border:1px solid #e2e8f0}.attribute-field label{display:block;font-size:.85rem;color:#64748b;text-transform:uppercase;letter-spacing:.08em;margin-bottom:10px;font-weight:600}.attribute-value{font-size:1rem;color:#1e293b;word-break:break-word}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px}.feature-item{display:flex;align-items:flex-start;gap:12px;padding:14px;background:#f0fdf4;border-radius:12px;border:1px solid #dcfce7}.feature-icon{flex-shrink:0;display:flex;align-items:center;justify-content:center;width:24px;height:24px;background:#22c55e;color:#fff;border-radius:50%;font-size:.9rem;font-weight:600}.feature-item>div:last-child{flex:1;color:#166534;font-size:.95rem;line-height:1.4}.image-url-field{word-break:break-all;font-size:.9rem}.url-link{color:#2563eb;text-decoration:none;border-bottom:1px dotted #2563eb;word-break:break-all}.url-link:hover{text-decoration:underline}.tab-navigation{display:flex;gap:8px;border-bottom:1px solid #e5e7eb;margin-bottom:24px}.tab-button{padding:12px 20px;border:none;background:transparent;color:#6b7280;cursor:pointer;border-bottom:3px solid transparent;font-weight:500;font-size:1.05rem;transition:all .2s ease}.tab-button:hover{color:#4f46e5;background:#4f46e50a}.tab-button.active{color:#4f46e5;border-bottom-color:#4f46e5}.channel-listing-card{padding:18px;background:#f8fafc;border-radius:14px;border:1px solid #e2e8f0}.channel-listing-card div:first-child{color:#1e293b}.description-text{padding:18px;background:#f8fafc;border-radius:14px;border:1px solid #e2e8f0;line-height:1.6;color:#475569}.sidebar{background:#111827;color:#f9fafb;padding:28px 20px;display:flex;flex-direction:column;gap:24px;position:fixed;left:0;top:0;width:260px;height:100vh;z-index:100;overflow-y:auto}.sidebar-logo{font-size:1.35rem;font-weight:700;letter-spacing:.04em}.sidebar-link{display:block;padding:14px 16px;margin-bottom:10px;border-radius:14px;color:#e5e7eb;text-decoration:none}.sidebar-link.active{background:#2563eb;color:#fff}.sidebar-link:hover{background:#ffffff14}.sidebar-group-label{margin:12px 6px 10px;font-size:.78rem;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:#9ca3af}.sidebar-submenu{display:grid;gap:6px;margin-bottom:10px}.sidebar-sublink{display:block;padding:10px 14px 10px 26px;border-radius:12px;color:#d1d5db;text-decoration:none;font-size:.95rem}.sidebar-sublink:hover{background:#ffffff14}.sidebar-sublink.active{background:#2563eb4d;color:#fff}.sidebar-section{border-top:1px solid rgba(255,255,255,.08);padding-top:18px}.sidebar-section-title{text-transform:uppercase;font-size:.75rem;letter-spacing:.12em;color:#9ca3af;margin-bottom:12px}.channel-card{background:#fff;border-radius:18px;padding:18px;width:100%;box-shadow:0 12px 30px #0f172a0f}.channel-card h3{margin:0 0 10px}.channel-card p{margin:0}.channel-grid{display:grid;gap:16px;grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}.badge{display:inline-flex;align-items:center;justify-content:center;border-radius:999px;padding:6px 10px;font-size:.8rem;font-weight:700}.badge.active{background:#dcfce7;color:#166534}.badge.paused{background:#fee2e2;color:#b91c1c}.user-card{padding:16px;border-radius:14px;background:#ffffff0d;border:1px solid rgba(255,255,255,.08)}.auth-page{min-height:100vh;display:grid;grid-template-columns:minmax(320px,1.2fr) minmax(340px,460px);gap:32px;align-items:center;padding:48px;background:radial-gradient(circle at top left,rgba(37,99,235,.22),transparent 30%),radial-gradient(circle at bottom right,rgba(15,23,42,.12),transparent 28%),linear-gradient(135deg,#eff6ff,#f8fafc 45%,#e2e8f0)}.auth-hero{max-width:620px}.auth-hero-badge{display:inline-flex;padding:8px 14px;border-radius:999px;background:#2563eb1f;color:#1d4ed8;font-weight:700;letter-spacing:.04em;text-transform:uppercase;margin-bottom:18px}.auth-hero h1{font-size:clamp(2.25rem,5vw,4.2rem);line-height:1.05;margin:0;color:#0f172a}.auth-hero p{font-size:1.05rem;line-height:1.7;color:#334155;max-width:560px}.auth-demo-card{display:grid;gap:8px;max-width:320px;padding:18px;border-radius:20px;background:#ffffffb3;border:1px solid rgba(148,163,184,.28);box-shadow:0 18px 40px #0f172a14;color:#0f172a}.auth-card{padding:28px;border-radius:28px;background:#ffffffeb;border:1px solid rgba(226,232,240,.9);box-shadow:0 30px 60px #0f172a24;-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px)}.auth-tabs{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:18px}.auth-tab{padding:12px 14px;border-radius:14px;border:1px solid #cbd5e1;background:#fff;color:#334155;font:inherit;font-weight:600;cursor:pointer}.auth-tab.active{background:#0f172a;color:#fff;border-color:#0f172a}.auth-feedback{margin-bottom:18px;padding:12px 14px;border-radius:14px;font-size:.95rem}.auth-feedback-info{background:#e0f2fe;color:#075985}.auth-feedback-success{background:#dcfce7;color:#166534}.auth-feedback-error{background:#fee2e2;color:#b91c1c}.auth-form{display:grid;gap:12px}.auth-form label{font-size:.9rem;font-weight:600;color:#334155}.auth-input{width:100%;padding:13px 14px;border-radius:14px;border:1px solid #cbd5e1;background:#fff;font:inherit}.auth-submit{margin-top:8px;min-height:48px}@media (max-width: 980px){.auth-page{grid-template-columns:1fr;padding:28px 20px}.auth-card{max-width:520px;width:100%}}@media (max-width: 720px){.main-panel{margin-left:0}.sidebar{position:static;width:auto;height:auto}.header-bar{flex-direction:column;align-items:stretch}.auth-tabs{grid-template-columns:1fr}}