@import"https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap";:root{--primary: #111827;--primary-hover: #374151;--bg: #fafafa;--surface: #ffffff;--text-main: #111827;--text-muted: #6b7280;--border: #eaeaea;--ring: rgba(17, 24, 39, .1);--focus-border: #9ca3af;--success: #10b981;--error: #ef4444}*{box-sizing:border-box}body{margin:0;font-family:Inter,-apple-system,BlinkMacSystemFont,sans-serif;background-color:var(--bg);color:var(--text-main);-webkit-font-smoothing:antialiased;line-height:1.5}#root{min-height:100vh;display:flex;flex-direction:column}.app-wrapper{display:flex;flex-direction:column;min-height:100vh}.navbar{position:sticky;top:0;z-index:50;background:#ffffffd9;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--border)}.navbar-content{max-width:1024px;margin:0 auto;padding:0 1.5rem;height:64px;display:flex;align-items:center;justify-content:space-between}.brand{font-weight:700;font-size:1.15rem;display:flex;align-items:center;gap:.6rem;color:var(--text-main);letter-spacing:-.01em}.brand svg{width:22px;height:22px;color:var(--primary)}.nav-links{display:flex;gap:2rem}.nav-link{background:none;border:none;color:var(--text-muted);font-family:inherit;font-size:.95rem;font-weight:500;cursor:pointer;padding:.5rem 0;transition:color .2s}.nav-link:hover{color:var(--text-main)}.nav-link.active{color:var(--text-main);font-weight:600}.lang-toggle-group{display:flex;background:#f1f5f9;border-radius:99px;padding:.25rem}.lang-toggle{background:none;border:none;padding:.35rem .75rem;border-radius:99px;font-size:.8rem;font-weight:600;color:var(--text-muted);cursor:pointer;transition:all .2s}.lang-toggle.active{background:var(--surface);color:var(--text-main);box-shadow:0 1px 3px #0000001a}.main-container{flex:1;width:100%;max-width:800px;margin:3.5rem auto 5rem;padding:0 1.5rem}.page-header{margin-bottom:3rem;text-align:center}.page-title{font-size:2.75rem;font-weight:800;letter-spacing:-.03em;margin:0 0 1rem;background:linear-gradient(to right,#111827,#4b5563);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.page-intro{font-size:1.125rem;color:var(--text-muted);max-width:600px;margin:0 auto;line-height:1.6}.content-box{background:var(--surface);border:1px solid var(--border);border-radius:20px;padding:3rem;box-shadow:0 4px 6px -1px #00000005,0 2px 4px -1px #00000005}.doc-section{margin-bottom:2.5rem}.doc-section:last-child{margin-bottom:0}.doc-section h3{font-size:1.25rem;font-weight:600;border-bottom:1px solid var(--border);padding-bottom:.75rem;margin:0 0 1.25rem;color:var(--text-main)}.doc-section ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:1rem}.doc-section li{padding-left:1.5rem;position:relative;color:#374151;line-height:1.6}.doc-section li:before{content:"";position:absolute;left:0;top:.6rem;width:6px;height:6px;border-radius:50%;background:#9ca3af}.feedback-form{display:flex;flex-direction:column;gap:1.5rem;max-width:600px;margin:0 auto}.form-group{display:flex;flex-direction:column;gap:.5rem}.form-label{font-size:.9rem;font-weight:500;color:var(--text-main)}.form-control{width:100%;border:1px solid var(--border);border-radius:10px;padding:.875rem 1rem;font-family:inherit;font-size:1rem;color:var(--text-main);background:var(--bg);transition:all .2s}.form-control::placeholder{color:#9ca3af}.form-control:focus{outline:none;border-color:var(--focus-border);background:var(--surface);box-shadow:0 0 0 3px var(--ring)}textarea.form-control{min-height:160px;resize:vertical}.btn-submit{background:var(--primary);color:#fff;border:none;border-radius:99px;padding:.875rem 2rem;font-size:1rem;font-weight:600;cursor:pointer;transition:all .2s;align-self:flex-start;margin-top:.5rem}.btn-submit:hover:not(:disabled){background:var(--primary-hover);transform:translateY(-1px)}.btn-submit:disabled{opacity:.6;cursor:not-allowed}.feedback-msg{font-size:.95rem;font-weight:500;margin-top:1rem;padding:.875rem 1rem;border-radius:10px}.feedback-msg.success{background:#ecfdf5;color:#065f46;border:1px solid #a7f3d0}.feedback-msg.error{background:#fef2f2;color:#991b1b;border:1px solid #fecaca}.app-footer{text-align:center;padding:2.5rem 1.5rem;border-top:1px solid var(--border);color:var(--text-muted);font-size:.9rem;background:var(--surface)}@media(max-width:640px){.navbar-content{flex-direction:row;flex-wrap:wrap;height:auto;padding:1rem}.brand{width:50%}.lang-toggle-group{margin-left:auto}.nav-links{width:100%;margin-top:1rem;justify-content:center;gap:1.5rem;padding-top:1rem;border-top:1px solid var(--border)}.page-title{font-size:2.25rem}.main-container{margin-top:2rem;margin-bottom:3rem}.content-box{padding:1.5rem;border-radius:16px}.btn-submit{width:100%;text-align:center}}