:root {
            --primary: #0a84ff;
            --text: #222;
            --muted: #333;
            --brand: #0a3e66;
            --bg: #f8f9fb;
            --card: #ffffff;
            --border: #e6e9ef;
            --input: #d1d6dd;
            --input-bg: #fafbfd;
        }

        body {
            font-family: "Inter", sans-serif;
            background: var(--bg);
            margin: 0;
            padding: 2rem 1rem;
            color: var(--text);
            line-height: 1.6;
        }

        h1,
        h2,
        h3 {
            font-family: "Playfair Display", serif;
            color: var(--brand);
            margin-bottom: 0.5rem;
        }

        .form-intro {
            max-width: 850px;
            margin: 0 auto 2rem auto;
            text-align: center;
        }

        h1 {
            font-size: 2rem;
            margin-bottom: 0.5rem;
        }

        h2 {
            margin-bottom: 1.25rem;
            font-weight: 600;
        }

        .form-intro p {
            color: var(--muted);
            margin: 0 auto 1.25rem auto;
        }

        form {
            max-width: 850px;
            margin: 0 auto 3rem auto;
            background: var(--card);
            padding: 2rem 2.5rem;
            border-radius: 16px;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
            border: 1px solid var(--border);
        }

        label {
            font-weight: 500;
            color: var(--brand);
            display: block;
            margin-bottom: 0.35rem;
        }

        input[type="text"],
        input[type="email"],
        input[type="number"],
        input[type="tel"],
        textarea,
        select {
            width: 100%;
            padding: 0.75rem;
            border-radius: 10px;
            border: 1px solid var(--input);
            background: var(--input-bg);
            font-size: 1rem;
            margin-bottom: 1.2rem;
            transition: all 0.2s ease;
        }

        input:focus,
        textarea:focus,
        select:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(10, 132, 255, 0.25);
            outline: none;
        }

        input[type="checkbox"] {
            margin-right: 0.45rem;
            transform: scale(1.2);
        }

        .checkbox-group {
            margin-bottom: 1.2rem;
            line-height: 1.9;
        }

        form h3 {
            margin-top: 1.6rem;
            margin-bottom: 0.8rem;
            color: var(--brand);
            font-weight: 600;
            font-size: 1.15rem;
        }

        button[type="submit"] {
            width: 100%;
            padding: 1rem;
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: 12px;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.25s ease;
            margin-top: 0.5rem;
        }

        button[type="submit"]:hover {
            background: #0066d6;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(0, 102, 214, 0.3);
        }

        @media (max-width: 520px) {
            form {
                padding: 1.5rem;
            }
        }