:root{--bg-main:#f8fafc;--bg-alt:#fff;--bg-card:#fff;--text-main:#0f172a;--text-muted:#64748b;--border-color:#e2e8f0;--accent-blue:#2563eb;--accent-cyan:#06b6d4;--nav-bg:#fffc;--shadow-sm:0 1px 3px #0000001a;--shadow-lg:0 10px 25px #0000001a}.dark{--bg-main:#020617;--bg-alt:#0f172a;--bg-card:#1e293b;--text-main:#f8fafc;--text-muted:#94a3b8;--border-color:#334155;--accent-blue:#3b82f6;--accent-cyan:#22d3ee;--nav-bg:#020617cc;--shadow-sm:0 1px 3px #00000080;--shadow-lg:0 10px 25px #00000080}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{background-color:var(--bg-main);color:var(--text-main);font-family:system-ui,-apple-system,sans-serif;transition:background-color .3s,color .3s}.container{max-width:1100px;margin:0 auto;padding:0 20px}.text-gradient{background:linear-gradient(to right, var(--accent-blue), 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var(--border-color);background-color:var(--bg-main);width:100%;color:var(--text-main);border-radius:12px;outline:none;padding:15px;font-family:inherit;transition:border-color .2s,box-shadow .2s}input:focus,textarea:focus{border-color:var(--accent-cyan);box-shadow:0 0 0 3px #06b6d433}textarea{resize:vertical}.btn-submit{background:linear-gradient(to right, var(--accent-blue), var(--accent-cyan));color:#fff;justify-content:center;width:100%;margin-top:10px;padding:16px}.btn-submit:hover{transform:translateY(-2px);box-shadow:0 4px 15px #06b6d466}.social-links{border-top:1px solid var(--border-color);justify-content:center;gap:20px;margin-top:40px;padding-top:30px;display:flex}.social-links a{background-color:var(--bg-main);color:var(--text-muted);border-radius:50%;padding:12px;transition:all .3s}.social-links a:hover{background-color:var(--accent-blue);color:#fff;transform:translateY(-3px)}.footer{text-align:center;border-top:1px solid var(--border-color);color:var(--text-muted);background-color:var(--bg-main);padding:30px 20px;font-size:.9rem}.footer-built{justify-content:center;align-items:center;gap:8px;margin-top:10px;display:flex}