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ease;flex-shrink:0}.btn-delete-channel:hover:not(:disabled){color:#f87171;background:#ef44441a}.btn-delete-channel:disabled{opacity:.5;cursor:not-allowed}.settings-form{display:flex;flex-direction:column;gap:1rem}.settings-row{display:flex;align-items:center;gap:1rem}.settings-label{font-size:.875rem;color:var(--text-secondary);min-width:90px}.settings-select{flex:1;background:#ffffff0d;border:1px solid var(--border-color);border-radius:var(--radius-sm);padding:.6rem .9rem;color:var(--text-primary);font-size:.875rem;outline:none;cursor:pointer;transition:border-color .2s ease}.settings-select:focus{border-color:var(--border-hover)}.settings-select option{background:#1a1a2e}.btn-save-settings{align-self:flex-start;padding:.6rem 1.4rem;background:#6366f11a;color:#818cf8;border:1px solid rgba(99,102,241,.3);border-radius:var(--radius-sm);font-size:.875rem;font-weight:500;cursor:pointer;transition:all .2s ease}.btn-save-settings:hover:not(:disabled){background:#6366f12e;border-color:#6366f180}.btn-save-settings:disabled{opacity:.6;cursor:not-allowed}.url-input-wrapper{max-width:680px;margin:0 auto 2.5rem;padding:0 2rem}.url-input-form{width:100%}.input-container{display:flex;align-items:center;background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:.35rem .35rem .35rem 1rem;transition:all .3s ease;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px)}.input-container:focus-within{border-color:var(--accent-blue);box-shadow:0 0 0 3px #6366f126,var(--shadow-glow)}.input-icon{color:var(--text-muted);flex-shrink:0;display:flex;align-items:center}.url-input{flex:1;background:transparent;border:none;outline:none;color:var(--text-primary);font-size:.925rem;font-family:inherit;padding:.65rem .75rem}.url-input::placeholder{color:var(--text-muted)}.submit-button{background:var(--gradient-main);color:#fff;border:none;padding:.65rem 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ease}.card-delete-btn:hover{color:#f87171;background:#ef44441a}.source-tag{display:inline-flex;align-items:center;gap:.35rem;padding:.3rem .7rem;border-radius:var(--radius-sm);font-size:.7rem;font-weight:600;text-transform:uppercase;letter-spacing:.06em;width:fit-content}.source-tag.youtube{background:#ef444426;color:#f87171;border:1px solid rgba(239,68,68,.2)}.source-tag.article{background:#6366f126;color:#818cf8;border:1px solid rgba(99,102,241,.2)}.source-tag.blog{background:#22c55e26;color:#4ade80;border:1px solid rgba(34,197,94,.2)}.card-title{font-size:1.05rem;font-weight:600;color:var(--text-primary);margin:0;line-height:1.4;letter-spacing:-.01em}.card-body{padding:1rem 1.25rem;flex-grow:1}.card-body ul{list-style-type:none;padding:0;margin:0;color:var(--text-secondary);font-size:.875rem;line-height:1.6}.card-body li{margin-bottom:.5rem;position:relative;padding-left:1.1rem}.card-body li:before{content:"";position:absolute;left:0;top:.6em;width:4px;height:4px;border-radius:50%;background:var(--accent-purple)}.card-footer{padding:1rem 1.25rem;border-top:1px solid var(--border-color);display:flex;justify-content:space-between;align-items:center}.card-source{font-size:.75rem;color:var(--text-muted)}.details-button{background:transparent;color:var(--accent-blue);padding:.4rem .85rem;border-radius:var(--radius-sm);text-decoration:none;font-weight:500;font-size:.8rem;border:1px solid rgba(99,102,241,.3);transition:all .2s ease}.details-button:hover{background:#6366f11a;border-color:#6366f180;color:#818cf8}.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:1.25rem;padding:0 2rem;max-width:1280px;margin:0 auto}@media(max-width:720px){.card-grid{grid-template-columns:1fr;padding:0 1rem}}.mypage{padding:0 2rem 4rem}.mypage-inner{max-width:720px;margin:0 auto;display:flex;flex-direction:column;gap:2rem}.mypage-section{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:1.75rem;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);display:flex;flex-direction:column;gap:1rem}.mypage-section-danger{border-color:#ef444433}.danger-title{color:#f87171!important}.profile-row{display:flex;align-items:center;gap:1.25rem}.profile-avatar{width:64px;height:64px;border-radius:50%;border:2px solid var(--border-hover);flex-shrink:0;object-fit:cover}.profile-avatar-placeholder{width:64px;height:64px;border-radius:50%;background:var(--gradient-main);display:flex;align-items:center;justify-content:center;font-size:1.5rem;font-weight:700;color:#fff;flex-shrink:0}.profile-info{display:flex;flex-direction:column;gap:.3rem;min-width:0}.profile-name{font-size:1.1rem;font-weight:600;color:var(--text-primary)}.profile-email{font-size:.9rem;color:var(--text-secondary)}.profile-meta{display:flex;align-items:center;gap:.75rem;flex-wrap:wrap;margin-top:.2rem}.profile-badge{font-size:.75rem;padding:.2rem .6rem;background:#6366f11f;border:1px solid rgba(99,102,241,.25);border-radius:20px;color:#818cf8;font-weight:500}.profile-joined{font-size:.78rem;color:var(--text-muted)}.mypage-form{display:flex;flex-direction:column;gap:1rem}.mypage-field{display:flex;flex-direction:column;gap:.4rem}.mypage-field label{font-size:.85rem;font-weight:500;color:var(--text-secondary)}.mypage-field 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ease;font-family:inherit}.btn-logout-full:hover{background:#ffffff0d;color:var(--text-primary)}.btn-delete-account{align-self:flex-start;padding:.6rem 1.4rem;background:#ef444414;border:1px solid rgba(239,68,68,.25);border-radius:var(--radius-sm);color:#f87171;font-size:.875rem;font-weight:500;cursor:pointer;transition:all .2s ease;font-family:inherit}.btn-delete-account:hover{background:#ef444426;border-color:#ef444466}.delete-confirm-box{display:flex;flex-direction:column;gap:.85rem;padding:1.25rem;background:#ef44440d;border:1px solid rgba(239,68,68,.2);border-radius:var(--radius-md)}.delete-confirm-label{font-size:.875rem;color:var(--text-secondary);line-height:1.6}.delete-confirm-label strong{color:var(--text-primary)}.delete-confirm-input{width:100%;padding:.65rem .9rem;background:#ffffff0d;border:1px solid rgba(239,68,68,.3);border-radius:var(--radius-sm);color:var(--text-primary);font-size:.9rem;outline:none;transition:border-color .2s ease;font-family:inherit}.delete-confirm-input:focus{border-color:#ef444499}.delete-confirm-input::placeholder{color:var(--text-muted)}.delete-confirm-buttons{display:flex;gap:.75rem}.btn-delete-confirm{padding:.6rem 1.4rem;background:#ef444426;border:1px solid rgba(239,68,68,.35);border-radius:var(--radius-sm);color:#f87171;font-size:.875rem;font-weight:600;cursor:pointer;transition:all .2s ease;font-family:inherit}.btn-delete-confirm:hover:not(:disabled){background:#ef444440;border-color:#ef444480}.btn-delete-confirm:disabled{opacity:.4;cursor:not-allowed}.btn-delete-cancel{padding:.6rem 1.4rem;background:transparent;border:1px solid var(--border-color);border-radius:var(--radius-sm);color:var(--text-muted);font-size:.875rem;font-weight:500;cursor:pointer;transition:all .2s ease;font-family:inherit}.btn-delete-cancel:hover:not(:disabled){border-color:var(--border-hover);color:var(--text-secondary)}.btn-delete-cancel:disabled{opacity:.4;cursor:not-allowed}.App{display:flex;flex-direction:row;min-height:100vh}.app-content{flex:1;min-width:0;display:flex;flex-direction:column;overflow:hidden}main{flex:1;overflow-y:auto}.app-loading{display:flex;align-items:center;justify-content:center;min-height:100vh}.app-loading-spinner{width:36px;height:36px;border:3px solid rgba(255,255,255,.1);border-top-color:var(--accent-blue);border-radius:50%;animation:spin .7s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}