:root{--blue-900: #1e3a8a;--blue-700: #1d4ed8;--blue-600: #2563eb;--blue-500: #3b82f6;--blue-100: #dbeafe;--blue-50: #eff6ff;--slate-900: #0f172a;--slate-700: #334155;--slate-500: #64748b;--slate-400: #94a3b8;--slate-200: #e2e8f0;--slate-100: #f1f5f9;--slate-50: #f8fafc;--white: #ffffff;--success: #10b981;--warning: #f59e0b;--danger: #ef4444;--radius-sm: 8px;--radius-md: 12px;--radius-lg: 16px;--radius-xl: 24px;--radius-full: 9999px;--shadow-sm: 0 1px 3px rgba(15, 23, 42, .06);--shadow-md: 0 4px 20px rgba(15, 23, 42, .08);--shadow-lg: 0 12px 40px rgba(15, 23, 42, .12);--header-h: 72px}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Inter,Segoe UI,Tahoma,Geneva,Verdana,sans-serif;background:var(--slate-50);color:var(--slate-900);min-height:100vh;-webkit-font-smoothing:antialiased}.page-shell{max-width:720px;margin:0 auto;padding:2rem 1.25rem 3rem}.page-state{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:3.5rem 2rem;background:var(--white);border-radius:var(--radius-xl);border:1px solid var(--slate-200);box-shadow:var(--shadow-md);position:relative;overflow:hidden}.page-state:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 20% 20%,rgba(37,99,235,.08) 0%,transparent 50%),radial-gradient(circle at 80% 80%,rgba(59,130,246,.06) 0%,transparent 50%);pointer-events:none}.page-state>*{position:relative;z-index:1}.page-state-icon{width:88px;height:88px;border-radius:var(--radius-full);display:flex;align-items:center;justify-content:center;font-size:2.25rem;margin-bottom:1.5rem;background:linear-gradient(135deg,var(--blue-50) 0%,var(--blue-100) 100%);color:var(--blue-600);box-shadow:0 8px 24px #2563eb26}.page-state-icon.loading{animation:pulse-soft 2s ease-in-out infinite}.page-state-icon.error{background:linear-gradient(135deg,#fef2f2,#fee2e2);color:var(--danger);box-shadow:0 8px 24px #ef44441f}.page-state-icon.success{background:linear-gradient(135deg,#ecfdf5,#d1fae5);color:var(--success);box-shadow:0 8px 24px #10b9811f}.page-state h2{font-size:1.5rem;font-weight:700;color:var(--slate-900);margin-bottom:.75rem;letter-spacing:-.02em}.page-state p{color:var(--slate-500);line-height:1.65;max-width:420px;font-size:1rem}.page-state-actions{display:flex;flex-wrap:wrap;gap:.75rem;justify-content:center;margin-top:1.75rem}.btn-modern{display:inline-flex;align-items:center;gap:.5rem;padding:.75rem 1.5rem;border-radius:var(--radius-full);font-weight:600;font-size:.9375rem;text-decoration:none;border:none;cursor:pointer;transition:transform .2s,box-shadow .2s,background .2s}.btn-modern:hover{transform:translateY(-1px)}.btn-modern-primary{background:linear-gradient(135deg,var(--blue-700) 0%,var(--blue-500) 100%);color:var(--white);box-shadow:0 4px 14px #2563eb59}.btn-modern-primary:hover{box-shadow:0 6px 20px #2563eb73}.btn-modern-ghost{background:var(--white);color:var(--blue-600);border:1.5px solid var(--slate-200)}.btn-modern-ghost:hover{border-color:var(--blue-500);background:var(--blue-50)}.page-hero-mini{text-align:center;margin-bottom:2rem}.page-hero-mini .label{display:inline-block;font-size:.75rem;font-weight:600;text-transform:uppercase;letter-spacing:.08em;color:var(--blue-600);background:var(--blue-50);padding:.35rem .85rem;border-radius:var(--radius-full);margin-bottom:.75rem}.page-hero-mini h1{font-size:clamp(1.75rem,4vw,2.25rem);font-weight:800;color:var(--slate-900);letter-spacing:-.03em;margin-bottom:.5rem}.page-hero-mini p{color:var(--slate-500);font-size:1.05rem}@keyframes pulse-soft{0%,to{transform:scale(1);opacity:1}50%{transform:scale(1.04);opacity:.85}}@keyframes spin{to{transform:rotate(360deg)}}.spinner{width:2.5rem;height:2.5rem;border:3px solid var(--blue-100);border-top-color:var(--blue-600);border-radius:50%;animation:spin .8s linear infinite}