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var(--border);border-radius:var(--radius-sm);font-size:14px;color:var(--text-dark);background:#f9fafb;outline:0;box-sizing:border-box;font-family:inherit;transition:border-color .2s}.reg-field input:focus,.reg-field textarea:focus{border-color:var(--primary);background:var(--white)}.reg-submit{width:100%;padding:12px;background:var(--primary);color:var(--white);border:none;border-radius:var(--radius-sm);font-size:15px;font-weight:600;cursor:pointer;transition:background .2s;margin-top:4px}.reg-submit:hover{background:#4a9a7e}.reg-msg{text-align:center;font-size:13px;margin-top:12px;min-height:18px}.reg-msg.success{color:var(--primary)}.reg-msg.error{color:var(--accent)}@media (max-width:768px){.activities-hero{padding:60px 16px 40px}.activities-hero h1{font-size:28px}.pub-activity-card{padding:20px}.pub-card-header{flex-direction:column;align-items:flex-start;gap:6px}a,button,input,select,textarea{min-height:44px}*{touch-action:manipulation}html{-webkit-overflow-scrolling:touch}}@media (max-width:768px) and (orientation:landscape){.bg{min-height:100vh}.text-block h1{font-size:28px}.text-block p{font-size:16px}.ai-chat-window{flex-direction:row;flex-wrap:wrap}.ai-chat-header{width:100%}.ai-chat-messages{width:60%;height:calc(100% - 70px)}.ai-chat-input-area{width:40%;height:calc(100% - 70px);border-top:none;border-left:1px solid var(--ai-border);display:flex;flex-direction:column;justify-content:center}}@media (max-width:375px){.header-container{padding:10px 12px}.logo img{max-height:36px}.lang-toggle{padding:6px 10px}.current-lang{display:none}.mobile-menu-btn{width:40px;height:40px}.text-block h1{font-size:24px}.text-block p{font-size:14px}.nav1-container .title,.nav2-container h1,.nav3-container h1,.nav4-container h1{font-size:24px}.donate-container h2{font-size:20px}.amount-options{grid-template-columns:1fr 1fr}.navbar-container{width:90%;padding:90px 20px 32px}.navbar a{padding:14px 16px;font-size:15px}}