*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--color-primary: #3b82f6;--color-primary-hover: #2563eb;--color-primary-light: #dbeafe;--color-success: #22c55e;--color-success-light: #dcfce7;--color-warning: #f59e0b;--color-warning-light: #fef3c7;--color-danger: #ef4444;--color-danger-light: #fee2e2;--color-bg: #f8fafc;--color-surface: #ffffff;--color-border: #e2e8f0;--color-text: #1e293b;--color-text-secondary: #64748b;--color-text-muted: #94a3b8;--sidebar-width: 240px;--sidebar-bg: #1e293b;--sidebar-text: #cbd5e1;--sidebar-text-hover: #ffffff;--sidebar-active-bg: #334155;--space-xs: 4px;--space-sm: 8px;--space-md: 16px;--space-lg: 24px;--space-xl: 32px;--space-2xl: 48px;--radius-sm: 4px;--radius-md: 6px;--radius-lg: 8px;--radius-xl: 12px;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1);--font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--font-size-xs: .75rem;--font-size-sm: .875rem;--font-size-md: 1rem;--font-size-lg: 1.125rem;--font-size-xl: 1.25rem;--font-size-2xl: 1.5rem;--transition-fast: .15s ease;--transition-normal: .2s ease}html{font-size:16px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{font-family:var(--font-family);font-size:var(--font-size-md);line-height:1.5;color:var(--color-text);background-color:var(--color-bg)}a{color:var(--color-primary);text-decoration:none}a:hover{text-decoration:underline}.layout{display:flex;min-height:100vh}.layout__sidebar{position:fixed;top:0;left:0;width:var(--sidebar-width);height:100vh;background:var(--sidebar-bg);overflow-y:auto;z-index:100}.layout__main{flex:1;margin-left:var(--sidebar-width);min-height:100vh}.layout__content{padding:var(--space-lg);max-width:1400px}.sidebar{display:flex;flex-direction:column;height:100%}.sidebar__header{padding:var(--space-lg);border-bottom:1px solid rgba(255,255,255,.1)}.sidebar__logo{color:#fff;font-size:var(--font-size-xl);font-weight:700}.sidebar__nav{flex:1;padding:var(--space-md) 0}.sidebar__section{margin-bottom:var(--space-md)}.sidebar__section-title{padding:var(--space-sm) var(--space-lg);font-size:var(--font-size-xs);font-weight:600;text-transform:uppercase;letter-spacing:.05em;color:var(--color-text-muted)}.sidebar__link{display:flex;align-items:center;gap:var(--space-sm);padding:var(--space-sm) var(--space-lg);color:var(--sidebar-text);font-size:var(--font-size-sm);transition:background var(--transition-fast),color var(--transition-fast);cursor:pointer}.sidebar__link:hover{background:#ffffff0d;color:var(--sidebar-text-hover);text-decoration:none}.sidebar__link.active{background:var(--sidebar-active-bg);color:var(--sidebar-text-hover)}.page-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--space-lg)}.page-header__title{font-size:var(--font-size-2xl);font-weight:600}.page-header__actions{display:flex;gap:var(--space-sm)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-sm);padding:var(--space-sm) var(--space-md);font-size:var(--font-size-sm);font-weight:500;line-height:1.5;border:none;border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-fast)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn--primary{background:var(--color-primary);color:#fff}.btn--primary:hover:not(:disabled){background:var(--color-primary-hover)}.btn--secondary{background:var(--color-surface);color:var(--color-text);border:1px solid var(--color-border)}.btn--secondary:hover:not(:disabled){background:var(--color-bg)}.btn--success{background:var(--color-success);color:#fff}.btn--success:hover:not(:disabled){background:#16a34a}.btn--danger{background:var(--color-danger);color:#fff}.btn--danger:hover:not(:disabled){background:#dc2626}.btn--ghost{background:transparent;color:var(--color-text-secondary)}.btn--ghost:hover:not(:disabled){background:var(--color-bg);color:var(--color-text)}.btn--sm{padding:var(--space-xs) var(--space-sm);font-size:var(--font-size-xs)}.btn--lg{padding:var(--space-md) var(--space-lg);font-size:var(--font-size-md)}.form-group{margin-bottom:var(--space-md)}.form-label{display:block;margin-bottom:var(--space-xs);font-size:var(--font-size-sm);font-weight:500;color:var(--color-text)}.form-label--required:after{content:"*";color:var(--color-danger);margin-left:var(--space-xs)}.form-input,.form-textarea,.form-select{width:100%;padding:var(--space-sm) var(--space-md);font-size:var(--font-size-sm);line-height:1.5;color:var(--color-text);background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-md);transition:border-color var(--transition-fast),box-shadow var(--transition-fast)}.form-input:focus,.form-textarea:focus,.form-select:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px var(--color-primary-light)}.form-input::placeholder,.form-textarea::placeholder{color:var(--color-text-muted)}.form-textarea{min-height:120px;resize:vertical}.form-hint{margin-top:var(--space-xs);font-size:var(--font-size-xs);color:var(--color-text-muted)}.form-error{margin-top:var(--space-xs);font-size:var(--font-size-xs);color:var(--color-danger)}.card{background:var(--color-surface);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);border:1px solid var(--color-border)}.card__header{display:flex;align-items:center;justify-content:space-between;padding:var(--space-md) var(--space-lg);border-bottom:1px solid var(--color-border)}.card__title{font-size:var(--font-size-lg);font-weight:600}.card__body{padding:var(--space-lg)}.table-container{overflow-x:auto}.table{width:100%;border-collapse:collapse}.table th,.table td{padding:var(--space-sm) var(--space-md);text-align:left;border-bottom:1px solid var(--color-border)}.table th{font-size:var(--font-size-xs);font-weight:600;text-transform:uppercase;letter-spacing:.05em;color:var(--color-text-secondary);background:var(--color-bg)}.table tbody tr:hover{background:var(--color-bg)}.badge{display:inline-flex;align-items:center;padding:var(--space-xs) var(--space-sm);font-size:var(--font-size-xs);font-weight:500;border-radius:var(--radius-sm)}.badge--draft{background:var(--color-warning-light);color:#b45309}.badge--published{background:var(--color-success-light);color:#15803d}.media-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:var(--space-md)}.media-item{position:relative;aspect-ratio:1;border-radius:var(--radius-md);overflow:hidden;cursor:pointer;border:2px solid transparent;transition:border-color var(--transition-fast)}.media-item:hover,.media-item.selected{border-color:var(--color-primary)}.media-item img{width:100%;height:100%;object-fit:cover}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000080;display:flex;align-items:center;justify-content:center;z-index:1000;animation:fadeIn var(--transition-fast)}.modal{background:var(--color-surface);border-radius:var(--radius-xl);box-shadow:var(--shadow-lg);max-width:90vw;max-height:90vh;overflow:hidden;display:flex;flex-direction:column;animation:slideUp var(--transition-normal)}.modal--sm{width:400px}.modal--md{width:600px}.modal--lg{width:800px}.modal--xl{width:1000px}.modal__header{display:flex;align-items:center;justify-content:space-between;padding:var(--space-md) var(--space-lg);border-bottom:1px solid var(--color-border)}.modal__title{font-size:var(--font-size-lg);font-weight:600}.modal__close{background:none;border:none;font-size:var(--font-size-xl);color:var(--color-text-muted);cursor:pointer;padding:var(--space-xs)}.modal__close:hover{color:var(--color-text)}.modal__body{padding:var(--space-lg);overflow-y:auto;flex:1}.modal__footer{display:flex;justify-content:flex-end;gap:var(--space-sm);padding:var(--space-md) var(--space-lg);border-top:1px solid var(--color-border)}.toast-container{position:fixed;top:var(--space-lg);right:var(--space-lg);z-index:2000;display:flex;flex-direction:column;gap:var(--space-sm)}.toast{padding:var(--space-md);border-radius:var(--radius-md);box-shadow:var(--shadow-md);animation:slideIn var(--transition-normal);min-width:300px;display:flex;align-items:center;justify-content:space-between}.toast--success{background:var(--color-success);color:#fff}.toast--error{background:var(--color-danger);color:#fff}.toast--info{background:var(--color-primary);color:#fff}.loading{display:flex;align-items:center;justify-content:center;padding:var(--space-2xl)}.spinner{width:24px;height:24px;border:2px solid var(--color-border);border-top-color:var(--color-primary);border-radius:50%;animation:spin .8s linear infinite}.sticky-header{position:sticky;top:0;z-index:50;background:var(--color-surface);border-bottom:1px solid var(--color-border);padding:var(--space-md) var(--space-lg);margin:calc(-1 * var(--space-lg)) calc(-1 * var(--space-lg)) var(--space-lg);display:flex;align-items:center;justify-content:space-between}.sticky-header__left{display:flex;align-items:center;gap:var(--space-md)}.sticky-header__right{display:flex;align-items:center;gap:var(--space-sm)}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{transform:translateY(20px);opacity:0}to{transform:translateY(0);opacity:1}}@keyframes slideIn{0%{transform:translate(100%);opacity:0}to{transform:translate(0);opacity:1}}@keyframes spin{to{transform:rotate(360deg)}}.text-muted{color:var(--color-text-muted)}.text-secondary{color:var(--color-text-secondary)}.text-sm{font-size:var(--font-size-sm)}.text-xs{font-size:var(--font-size-xs)}.mt-md{margin-top:var(--space-md)}.mb-md{margin-bottom:var(--space-md)}.mr-sm{margin-right:var(--space-sm)}.flex{display:flex}.items-center{align-items:center}.justify-between{justify-content:space-between}.gap-sm{gap:var(--space-sm)}.gap-md{gap:var(--space-md)}