:root{--color-primary: #6366f1;--color-primary-hover: #4f46e5;--color-accent: #06b6d4;--color-gradient-start: #6366f1;--color-gradient-end: #06b6d4;--color-success: #22c55e;--color-danger: #ef4444;--color-warning: #f59e0b;--color-info: #0ea5e9;--color-bg: #f8fafc;--color-surface: #ffffff;--color-border: #e5e7eb;--color-text: #0f172a;--color-muted: #64748b;--radius-sm: 6px;--radius-md: 12px;--radius-lg: 20px;--radius-pill: 9999px;--shadow-sm: 0 1px 3px rgba(0, 0, 0, .08);--shadow-md: 0 4px 12px rgba(0, 0, 0, .08);--shadow-lg: 0 8px 24px rgba(0, 0, 0, .12);--font-sans: "Inter", "Segoe UI", sans-serif;--transition-fast: .2s ease;--transition-medium: .3s ease}*,*:before,*:after{margin:0;padding:0;box-sizing:border-box}body{font-family:var(--font-sans);background:var(--color-bg);color:var(--color-text);line-height:1.6;font-size:1rem;overflow-x:hidden;-webkit-font-smoothing:antialiased}h1,h2,h3,h4,h5,h6{font-weight:700;line-height:1.25;margin:1.5rem 0 .75rem;color:var(--color-text)}h1{font-size:2.5rem}h2{font-size:2rem}h3{font-size:1.5rem}p{margin-bottom:1rem;color:var(--color-muted)}a{color:var(--color-primary);text-decoration:none;transition:color var(--transition-fast);font-weight:500}a:hover{color:var(--color-primary-hover);text-decoration:underline}button,input[type=submit],input[type=button]{display:inline-block;background:linear-gradient(90deg,var(--color-gradient-start),var(--color-gradient-end));color:#fff;font-weight:600;border:none;border-radius:var(--radius-pill);padding:.6rem 1.3rem;cursor:pointer;transition:all var(--transition-medium);box-shadow:0 4px 16px #6366f14d}button:hover,input[type=submit]:hover,input[type=button]:hover{transform:translateY(-3px) scale(1.03);box-shadow:0 6px 24px #6366f180}button:disabled{opacity:.6;cursor:not-allowed}input,textarea,select{width:100%;padding:.6rem .8rem;border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-surface);font-size:1rem;transition:border var(--transition-fast),box-shadow var(--transition-fast);margin-bottom:1rem}input:focus,textarea:focus,select:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 4px #6366f133}.card{max-width:700px;margin:4rem auto;padding:2.5rem;background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);transition:transform var(--transition-medium),box-shadow var(--transition-medium);animation:fadeInUp .8s ease forwards}.card:hover{transform:translateY(-4px);box-shadow:0 10px 28px #6366f126}@keyframes fadeInUp{0%{opacity:0;transform:translateY(40px)}to{opacity:1;transform:translateY(0)}}.card-header{font-size:1.75rem;font-weight:700;margin-bottom:1.25rem;text-align:center;background:linear-gradient(90deg,var(--color-gradient-start),var(--color-gradient-end));-webkit-background-clip:text;-webkit-text-fill-color:transparent}section{background:var(--color-surface);padding:2rem;border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);margin-bottom:2rem;transition:all var(--transition-medium)}section:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}table{width:100%;border-collapse:collapse;margin-bottom:1rem;border-radius:var(--radius-md);overflow:hidden}th,td{border:1px solid var(--color-border);padding:.75rem 1rem;text-align:left}th{background:#f1f5f9;color:#1e293b;font-weight:600}[role=alert]{padding:.75rem 1rem;border-radius:var(--radius-md);margin-bottom:1rem;font-weight:500;animation:fadeIn .4s ease}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}[role=alert].success{background:#dcfce7;color:#166534}[role=alert].error{background:#fee2e2;color:#991b1b}[role=alert].warning{background:#fef9c3;color:#92400e}[role=alert].info{background:#e0f2fe;color:#075985}nav{display:flex;align-items:center;justify-content:space-between;background:#fffc;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);padding:.75rem 1.5rem;border-bottom:1px solid var(--color-border);box-shadow:var(--shadow-sm);position:sticky;top:0;z-index:100;transition:all var(--transition-medium)}nav a{margin:0 .75rem;font-weight:500;color:var(--color-text);transition:color var(--transition-fast)}nav a:hover{color:var(--color-primary)}body:before{content:"";position:fixed;top:-50%;left:-50%;width:200%;height:200%;background:conic-gradient(from 180deg,var(--color-primary),var(--color-accent),var(--color-primary));opacity:.05;animation:rotateBG 20s linear infinite;z-index:-1}@keyframes rotateBG{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.text-gradient{background:linear-gradient(90deg,var(--color-gradient-start),var(--color-gradient-end));-webkit-background-clip:text;-webkit-text-fill-color:transparent}.shadow-hover:hover{box-shadow:0 12px 32px #6366f140}.logo{width:42px;height:42px}.brand-name{font-weight:700;font-size:1.35rem;background:linear-gradient(90deg,#6366f1,#3b82f6,#06b6d4);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.button-container{display:flex;justify-content:flex-end}.delete-icon{background:none;border:none;padding:0;margin:0;font-size:18px;line-height:1;position:absolute;top:10px;right:10px;cursor:pointer;color:#666;z-index:3}