:root{--color-primary-start: #3b82f6;--color-primary-end: #764ba2;--color-secondary-start: #10b981;--color-secondary-end: #059669;--color-white: #ffffff;--color-gray-100: #f9fafb;--color-gray-200: #f3f4f6;--color-gray-300: #e5e7eb;--color-gray-400: #d1d5db;--color-gray-500: #9ca3af;--color-gray-600: #6b7280;--color-gray-700: #4b5563;--color-gray-800: #374151;--color-gray-900: #1f2937;--spacing-xs: 8px;--spacing-sm: 12px;--spacing-md: 16px;--spacing-lg: 24px;--spacing-xl: 32px;--spacing-xxl: 40px;--radius-sm: 8px;--radius-md: 12px;--radius-lg: 16px;--radius-xl: 20px;--shadow-sm: 0 2px 8px rgba(0, 0, 0, .08);--shadow-md: 0 4px 12px rgba(0, 0, 0, .1);--shadow-lg: 0 8px 24px rgba(0, 0, 0, .12);--shadow-xl: 0 12px 32px rgba(0, 0, 0, .15);--font-family: Inter, system-ui, Avenir, Helvetica, Arial, sans-serif;--font-size-base: 1rem;--font-weight-normal: 400;--font-weight-medium: 500;--font-weight-semibold: 600;--font-weight-bold: 700}[data-theme=green]{--color-primary-start: #10b981;--color-primary-end: #059669}[data-theme=blue]{--color-primary-start: #3b82f6;--color-primary-end: #1e40af}[data-theme=orange]{--color-primary-start: #f59e0b;--color-primary-end: #d97706}*{margin:0;padding:0;box-sizing:border-box}body{margin:0;font-family:var(--font-family);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;color:var(--color-gray-900)}#root{width:100%;min-height:100vh}.btn{padding:14px 32px;font-size:17px;font-weight:var(--font-weight-semibold, 600);border:none;border-radius:var(--radius-md, 12px);cursor:pointer;transition:all .3s ease;white-space:nowrap;min-width:160px;font-family:var(--font-family);display:inline-flex;align-items:center;justify-content:center;gap:8px}.btn:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 6px 20px #00000040}.btn:active:not(:disabled){transform:translateY(0);box-shadow:0 2px 8px #00000026}.btn:disabled{opacity:.6;cursor:not-allowed}.btn-primary{background:linear-gradient(135deg,var(--color-primary-start) 0%,var(--color-primary-end) 100%);color:#fff;box-shadow:0 4px 12px #667eea66}.btn-primary:hover:not(:disabled){background:linear-gradient(135deg,#5568d3,#65408d);box-shadow:0 6px 20px #667eea80}.btn-success{background:linear-gradient(135deg,var(--color-secondary-start) 0%,var(--color-secondary-end) 100%);color:#fff;box-shadow:0 4px 12px #10b98166}.btn-success:hover:not(:disabled){background:linear-gradient(135deg,#0ea371,#047857);box-shadow:0 6px 20px #10b98180}.btn-secondary{background:var(--color-white);color:var(--color-gray-800);border:2px solid var(--color-gray-300);box-shadow:var(--shadow-sm)}.btn-secondary:hover:not(:disabled){background:var(--color-gray-100);border-color:var(--color-gray-400);box-shadow:var(--shadow-md)}@media(max-width:768px){.btn{padding:12px 24px;font-size:16px;min-width:auto;width:100%}}.message-card{background:#fff!important;border-radius:12px;padding:24px;box-shadow:0 2px 10px #00000014;transition:all .3s ease;position:relative;border:1px solid #f3f4f6;min-height:180px;display:flex;flex-direction:column}.message-card:hover{transform:translateY(-6px);box-shadow:0 8px 24px #0000001f;border-color:#e5e7eb}.card-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px;padding-bottom:12px;border-bottom:1px solid #f3f4f6}.badge{padding:6px 14px;border-radius:20px;font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.5px}.badge.info{background:#dbeafe;color:#1e40af!important}.badge.debug{background:#f3e8ff;color:#7e22ce!important}.badge.warning{background:#fef3c7;color:#b45309!important}.badge.error{background:#fee2e2;color:#b91c1c!important}.card-id{font-size:13px;color:#9ca3af!important;font-weight:500}.card-content{font-size:17px;color:#1f2937!important;margin-bottom:16px;line-height:1.6;flex:1;word-wrap:break-word;font-weight:500}.card-footer{font-size:14px;color:#6b7280!important;margin-top:auto;padding-top:12px;border-top:1px solid #f3f4f6}.delete-btn{position:absolute;top:12px;right:12px;background:#fef2f2;border:none;font-size:20px;cursor:pointer;padding:8px 10px;border-radius:6px;transition:all .2s;opacity:0}.message-card:hover .delete-btn{opacity:1}.delete-btn:hover{background:#fee2e2;transform:scale(1.1)}.delete-btn:active{transform:scale(.95)}@media(max-width:768px){.message-card{padding:20px;min-height:auto}.delete-btn{opacity:1}.card-content{font-size:16px}}.app{min-height:100vh;background:linear-gradient(135deg,var(--color-primary-start) 0%,var(--color-primary-end) 100%)}.header{background:#fffffffa;padding:40px 20px;text-align:center;box-shadow:var(--shadow-lg);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.header-content{display:flex;align-items:center;justify-content:center;gap:20px;flex-wrap:wrap}.header-logo{width:64px;height:64px;object-fit:contain;animation:float 3s ease-in-out infinite}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}.header-text h1{font-size:3rem;color:var(--color-gray-900);margin-bottom:8px;font-weight:var(--font-weight-bold);background:linear-gradient(135deg,var(--color-primary-start) 0%,var(--color-primary-end) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.header-text p{font-size:1.2rem;color:var(--color-gray-600);font-weight:var(--font-weight-medium)}.main{max-width:1400px;margin:0 auto;padding:50px 40px}.section{background:#fffffffa;border-radius:var(--radius-xl);padding:var(--spacing-xxl);margin-bottom:var(--spacing-xxl);box-shadow:var(--shadow-lg);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.8)}.section h2{font-size:2rem;margin-bottom:12px;color:var(--color-gray-900);font-weight:var(--font-weight-bold)}.section>p{color:var(--color-gray-600);font-size:1rem;margin-bottom:var(--spacing-lg)}.input-group{display:flex;gap:var(--spacing-md);margin-top:var(--spacing-lg);max-width:800px}.input-group input{flex:1;padding:14px 20px;font-size:17px;border:2px solid var(--color-gray-300);border-radius:var(--radius-md);transition:all .3s ease;background:var(--color-white);color:var(--color-gray-900);font-family:var(--font-family)}.input-group input::placeholder{color:var(--color-gray-500)}.input-group input:focus{outline:none;border-color:var(--color-primary-start);box-shadow:0 0 0 4px #667eea1a;transform:translateY(-1px)}.error{background:#fee2e2;color:#b91c1c;padding:var(--spacing-md) var(--spacing-lg);border-radius:var(--radius-md);margin-top:var(--spacing-lg);font-size:15px;max-width:800px;border-left:4px solid #dc2626;font-weight:var(--font-weight-medium)}.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(350px,1fr));gap:var(--spacing-lg);margin-top:var(--spacing-xl)}.empty{text-align:center;color:var(--color-gray-500);font-size:1.2rem;padding:60px;grid-column:1 / -1}.empty div:first-child{font-size:4rem;margin-bottom:var(--spacing-md);opacity:.5}.section-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:var(--spacing-lg);gap:var(--spacing-md)}.section-info h2{margin-bottom:8px}.section-info p{margin:0;font-size:.95rem}footer{text-align:center;padding:30px;color:#fff;font-size:14px;opacity:.9;font-weight:var(--font-weight-medium)}@media(max-width:768px){.header-text h1{font-size:2rem}.header-text p{font-size:1rem}.header-logo{width:48px;height:48px}.main{padding:30px 20px}.section{padding:var(--spacing-lg);border-radius:var(--radius-lg)}.section h2{font-size:1.5rem}.input-group{flex-direction:column}.grid{grid-template-columns:1fr;gap:var(--spacing-md)}.section-header{flex-direction:column}}@media(min-width:1400px){.grid{grid-template-columns:repeat(3,1fr)}}@media(min-width:1800px){.grid{grid-template-columns:repeat(4,1fr)}}