:root{--primary: #4f46e5;--primary-hover: #4338ca;--secondary: #ec4899;--accent: #f59e0b;--background: #f8fafc;--card-bg: #ffffff;--text-main: #1e293b;--text-muted: #64748b;--border: #e2e8f0;--radius: 12px;--shadow-sm: 0 1px 2px 0 rgb(0 0 0 / .05);--shadow: 0 4px 6px -1px rgb(0 0 0 / .1), 0 2px 4px -2px rgb(0 0 0 / .1);--shadow-lg: 0 10px 15px -3px rgb(0 0 0 / .1), 0 4px 6px -4px rgb(0 0 0 / .1);font-family:Inter,system-ui,-apple-system,sans-serif;line-height:1.5;font-weight:400;color:var(--text-main);background-color:var(--background)}*{box-sizing:border-box;margin:0;padding:0}body{min-height:100vh;display:flex;flex-direction:column}#root{width:100%;min-height:100vh}.glass{background:#ffffffb3;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.18)}.btn{padding:10px 20px;border-radius:var(--radius);border:none;font-weight:600;cursor:pointer;transition:all .2s ease;display:flex;align-items:center;gap:8px;justify-content:center}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-hover);transform:translateY(-1px);box-shadow:var(--shadow)}.btn-outline{background:transparent;border:1px solid var(--border);color:var(--text-main)}.btn-outline:hover{background:#f1f5f9}input,select,textarea{width:100%;padding:12px 16px;border:1px solid var(--border);border-radius:var(--radius);font-size:16px;outline:none;transition:border-color .2s}input:focus,select:focus{border-color:var(--primary);box-shadow:0 0 0 3px #4f46e51a}.container{max-width:1200px;margin:0 auto;padding:0 20px}.card{background:var(--card-bg);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.fade-in{animation:fadeIn .5s ease forwards}.password-toggle{position:absolute;right:12px;top:50%;transform:translateY(-50%);background:none;border:none;cursor:pointer;color:var(--text-muted);padding:4px;display:flex;align-items:center;justify-content:center;transition:color .2s}.password-toggle:hover{color:var(--primary)}.auth-divider{display:flex;align-items:center;gap:16px;margin:24px 0}.auth-divider:before,.auth-divider:after{content:"";flex:1;height:1px;background:var(--border)}.auth-divider span{font-size:13px;color:var(--text-muted);font-weight:500}.auth-link{color:var(--primary);text-decoration:none;font-weight:600;transition:color .2s}.auth-link:hover{color:var(--primary-hover);text-decoration:underline}.admin-table{width:100%;border-collapse:collapse;font-size:14px}.admin-table thead{background:#f8fafc}.admin-table th{text-align:left;padding:14px 20px;font-weight:600;font-size:12px;text-transform:uppercase;letter-spacing:.05em;color:var(--text-muted);border-bottom:1px solid var(--border)}.admin-table td{padding:14px 20px;border-bottom:1px solid #f1f5f9;vertical-align:middle}.admin-table tbody tr{transition:background .15s}.admin-table tbody tr:hover{background:#fafafa}.status-badge{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:20px;font-size:12px;font-weight:600;white-space:nowrap}.course-card{transition:transform .2s,box-shadow .2s}.course-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}