*,*:before,*:after{margin:0;padding:0;box-sizing:border-box;list-style:none;text-decoration:none}:root{--bg: #ffffff;--txt: #1e293b;--border: #b3d4d4;--accent: #004d4d;--accent-hover: #003a3a}html{background-color:var(--bg);color:var(--txt);font-family:-apple-system,BlinkMacSystemFont,Inter,sans-serif}body{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:2rem 1rem}header{text-align:center;margin-bottom:1.5rem}header h1{font-size:1.8rem;font-weight:600;margin-bottom:.5rem}header p{color:#4b5563;font-size:.95rem}header a{color:var(--accent);font-weight:500;text-decoration:underline;transition:color .2s ease}#demo-list,#contact-page{display:flex;flex-direction:column;gap:1rem;width:100%;max-width:360px}.demo-button,.email-submit{padding:.85rem 1.5rem;background-color:#e6f2f2;color:var(--txt);border:1px solid var(--border);border-radius:8px;font-size:.95rem;font-weight:500;text-align:center;transition:background-color .2s ease,border-color .2s ease}.demo-button:hover,.email-submit:hover{background-color:var(--accent);border-color:var(--accent);color:#fff}.demo-button:active,.email-submit:active{background-color:var(--accent-hover);border-color:var(--accent-hover)}form{display:flex;flex-direction:column;gap:.5rem;width:100%}label{font-size:.9rem;font-weight:500;color:var(--txt)}.email-input{padding:.75rem 1rem;border:1px solid var(--border);border-radius:8px;font-size:.95rem;font-family:inherit;color:var(--txt);background-color:var(--bg);outline:none;transition:border-color .2s ease}.email-input:focus{border-color:var(--accent)}textarea.email-input{resize:vertical;min-height:120px}.email-submit{cursor:pointer;margin-top:.25rem;border:none}#form-status{font-size:.875rem;text-align:center;min-height:1.2rem}