.app{min-height:100vh;display:flex;flex-direction:column;position:relative;z-index:1}.header{padding:3rem 2rem;text-align:center;background:linear-gradient(135deg,#6366f11a,#a78bfa1a);border-bottom:1px solid var(--border-color);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.header-content{max-width:1200px;margin:0 auto}.title{font-size:3rem;font-weight:700;margin-bottom:.5rem;background:linear-gradient(135deg,var(--primary-light) 0%,var(--secondary) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;display:flex;align-items:center;justify-content:center;gap:1rem}.title .icon{font-size:3.5rem;filter:drop-shadow(0 0 20px rgba(99,102,241,.5))}.subtitle{font-size:1.25rem;color:var(--text-secondary);font-weight:300}.main-content{flex:1;max-width:1200px;width:100%;margin:0 auto;padding:3rem 2rem}.section-title{font-size:1.75rem;margin-bottom:1.5rem;color:var(--text-primary);font-weight:600}.algo-selector{margin-bottom:3rem}.algo-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1.5rem}.algo-card{background:var(--bg-card);border:2px solid transparent;border-radius:16px;padding:2rem;cursor:pointer;transition:all .3s ease;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);position:relative;overflow:hidden}.algo-card:before{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:linear-gradient(135deg,var(--card-color),transparent);opacity:0;transition:opacity .3s ease;pointer-events:none}.algo-card:hover{background:var(--bg-card-hover);transform:translateY(-5px);box-shadow:var(--shadow)}.algo-card:hover:before{opacity:.1}.algo-card.active{border-color:var(--card-color);background:var(--bg-card-hover);box-shadow:0 0 30px rgba(var(--card-color),.3)}.algo-card.active:before{opacity:.15}.algo-icon{font-size:3rem;display:block;margin-bottom:1rem;filter:drop-shadow(0 0 10px rgba(99,102,241,.3))}.algo-name{font-size:1.5rem;margin-bottom:.5rem;color:var(--text-primary);font-weight:600}.algo-desc{font-size:.95rem;color:var(--text-secondary);line-height:1.5}.encryption-section{margin-top:2rem}.footer{padding:2rem;text-align:center;color:var(--text-secondary);border-top:1px solid var(--border-color);background:#0003;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}@media(max-width:768px){.title{font-size:2rem;flex-direction:column;gap:.5rem}.title .icon{font-size:2.5rem}.subtitle{font-size:1rem}.main-content{padding:2rem 1rem}.algo-grid{grid-template-columns:1fr}}.encryption-card{background:var(--bg-card);border:1px solid var(--border-color);border-radius:20px;padding:2.5rem;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);box-shadow:var(--shadow);transition:all .3s ease}.encryption-card:hover{box-shadow:0 15px 60px #0006;transform:translateY(-2px)}.card-header{margin-bottom:2rem;padding-bottom:1.5rem;border-bottom:2px solid var(--border-color)}.card-title{font-size:2rem;font-weight:600;background:linear-gradient(135deg,var(--primary-light) 0%,var(--secondary) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.card-body{display:flex;flex-direction:column;gap:1.5rem}.section-container{background:#ffffff08;border:1px solid var(--border-color);border-radius:16px;padding:2rem;transition:all .3s ease}.section-container:hover{background:#ffffff0d;border-color:var(--primary)}.decrypt-section{background:#a78bfa0d;border-color:#a78bfa4d}.decrypt-section:hover{background:#a78bfa14;border-color:var(--secondary)}.section-title{font-size:1.3rem;font-weight:600;color:var(--primary-light);margin-bottom:1.5rem;padding-bottom:.75rem;border-bottom:2px solid var(--border-color)}.decrypt-section .section-title{color:var(--secondary)}.input-section,.output-section{display:flex;flex-direction:column;gap:.75rem}.label{font-size:.95rem;font-weight:500;color:var(--text-primary);display:flex;align-items:center;gap:.5rem}.input,.textarea{background:#ffffff0d;border:1px solid var(--border-color);border-radius:12px;padding:1rem;color:var(--text-primary);font-size:.95rem;font-family:Inter,monospace;transition:all .3s ease;resize:vertical}.input:focus,.textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px #6366f11a;background:#ffffff14}.textarea{min-height:100px}.output-textarea,.key-textarea{background:#0000004d;font-family:Courier New,monospace;font-size:.85rem;word-break:break-all}.success-output{border:1px solid rgba(34,197,94,.5);background:#22c55e1a}.output-header{display:flex;justify-content:space-between;align-items:center}.copy-btn{background:var(--primary);color:#fff;border:none;border-radius:8px;padding:.5rem 1rem;font-size:.85rem;cursor:pointer;transition:all .3s ease;font-weight:500}.copy-btn:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 5px 15px #6366f166}.copy-btn:active{transform:translateY(0)}.button-group{display:flex;gap:1rem;flex-wrap:wrap}.btn{flex:1;min-width:150px;padding:1rem 1.5rem;border:none;border-radius:12px;font-size:1rem;font-weight:600;cursor:pointer;transition:all .3s ease;position:relative;overflow:hidden}.btn:before{content:"";position:absolute;top:50%;left:50%;width:0;height:0;border-radius:50%;background:#fff3;transform:translate(-50%,-50%);transition:width .6s,height .6s}.btn:hover:before{width:300px;height:300px}.btn-primary{background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);color:#fff}.btn-primary:hover{transform:translateY(-3px);box-shadow:0 10px 25px #6366f166}.btn-secondary{background:linear-gradient(135deg,var(--secondary) 0%,#8b5cf6 100%);color:#fff}.btn-secondary:hover{transform:translateY(-3px);box-shadow:0 10px 25px #a78bfa66}.btn-danger{background:linear-gradient(135deg,var(--accent) 0%,#dc2626 100%);color:#fff}.btn-danger:hover{transform:translateY(-3px);box-shadow:0 10px 25px #f43f5e66}.btn:disabled{opacity:.6;cursor:not-allowed;transform:none!important}.hint{font-size:.85rem;color:var(--warning);display:flex;align-items:center;gap:.5rem;margin-top:-.5rem;padding:.75rem;background:#f59e0b1a;border-radius:8px;border-left:3px solid var(--warning)}.info-box{margin-top:1rem;padding:1.5rem;background:linear-gradient(135deg,#6366f11a,#a78bfa1a);border-radius:12px;border:1px solid rgba(99,102,241,.2)}.info-title{font-size:1.1rem;margin-bottom:.75rem;color:var(--primary-light);font-weight:600}.info-text{font-size:.95rem;color:var(--text-secondary);line-height:1.6}@media(max-width:768px){.encryption-card{padding:1.5rem}.card-title{font-size:1.5rem}.button-group{flex-direction:column}.btn{min-width:100%}}:root{--bg-dark: #0a0e27;--bg-card: rgba(255, 255, 255, .05);--bg-card-hover: rgba(255, 255, 255, .08);--border-color: rgba(255, 255, 255, .1);--primary: #6366f1;--primary-light: #818cf8;--primary-dark: #4f46e5;--secondary: #a78bfa;--accent: #f43f5e;--success: #10b981;--warning: #f59e0b;--text-primary: #f1f5f9;--text-secondary: #94a3b8;--shadow: 0 10px 50px rgba(0, 0, 0, .3);--glow: 0 0 20px rgba(99, 102, 241, .3)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:linear-gradient(135deg,#0a0e27,#1a1f3a);color:var(--text-primary);min-height:100vh;overflow-x:hidden}#root{min-height:100vh;display:flex;flex-direction:column}body:before{content:"";position:fixed;top:0;left:0;right:0;bottom:0;background:radial-gradient(circle at 20% 30%,rgba(99,102,241,.1) 0%,transparent 50%),radial-gradient(circle at 80% 70%,rgba(167,139,250,.1) 0%,transparent 50%);pointer-events:none;z-index:0}::-webkit-scrollbar{width:10px}::-webkit-scrollbar-track{background:var(--bg-dark)}::-webkit-scrollbar-thumb{background:var(--primary);border-radius:5px}::-webkit-scrollbar-thumb:hover{background:var(--primary-light)}@keyframes fadeIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes slideIn{0%{opacity:0;transform:translate(-20px)}to{opacity:1;transform:translate(0)}}@keyframes glow{0%,to{box-shadow:0 0 20px #6366f14d}50%{box-shadow:0 0 30px #6366f180}}@keyframes spin{to{transform:rotate(360deg)}}.fade-in{animation:fadeIn .6s ease-out}.slide-in{animation:slideIn .5s ease-out}